Merge branch 'mc-1.15.x' into mc-1.16.x

Fix TBO normalisation issues on old GPUs

.github/ISSUE_TEMPLATE/bug_report.md

@@ -12,4 +12,5 @@ labels: bug
 ## Useful information to include:
  - Minecraft version
  - CC: Tweaked version
+ - Logs: These will be located in the `logs/` directory of your Minecraft instance. Please upload them as a gist or directly into this editor.
  - Detailed reproduction steps: sometimes I can spot a bug pretty easily, but often it's much more obscure. The more information I have to help reproduce it, the quicker it'll get fixed.

CONTRIBUTING.md

@@ -10,7 +10,7 @@ do use the issue templates - they provide a useful hint on what information to p
 
 ## Developing
 In order to develop CC: Tweaked, you'll need to download the source code and then run it. This is a pretty simple
-process.
+process. When building on Windows, Use `gradlew.bat` instead of `./gradlew`.
 
  - **Clone the repository:** `git clone https://github.com/SquidDev-CC/CC-Tweaked.git && cd CC-Tweaked`
  - **Setup Forge:** `./gradlew build`

README.md

@@ -1,4 +1,4 @@
-# ![CC: Tweaked](logo.png)
+# ![CC: Tweaked](doc/logo.png)
 [![Current build status](https://github.com/SquidDev-CC/CC-Tweaked/workflows/Build/badge.svg)](https://github.com/SquidDev-CC/CC-Tweaked/actions "Current build status") [![Download CC: Tweaked on CurseForge](http://cf.way2muchnoise.eu/title/cc-tweaked.svg)](https://minecraft.curseforge.com/projects/cc-tweaked "Download CC: Tweaked on CurseForge")
 
 CC: Tweaked is a fork of [ComputerCraft](https://github.com/dan200/ComputerCraft), adding programmable computers,
@@ -50,12 +50,12 @@ I'd generally recommend you don't contact me directly (email, DM, etc...) unless
 report exploits). You'll get a far quicker response if you ask the whole community!
 
 ## Using
-If you want to depend on CC: Tweaked, we have a maven repo. However, you should be wary that some functionality is only
-exposed by CC:T's API and not vanilla ComputerCraft. If you wish to support all variations of ComputerCraft, I recommend
-using [cc.crzd.me's maven](https://cc.crzd.me/maven/) instead.
+CC: Tweaked is hosted on my maven repo, and so is relatively simple to depend on. You may wish to add a soft (or hard)
+dependency in your `mods.toml` file, with the appropriate version bounds, to ensure that API functionality you depend
+on is present.
 
 ```groovy
-dependencies {
+repositories {
   maven { url 'https://squiddev.cc/maven/' }
 }
 

build.gradle

@@ -9,7 +9,7 @@ buildscript {
     }
     dependencies {
         classpath 'com.google.code.gson:gson:2.8.1'
-        classpath 'net.minecraftforge.gradle:ForgeGradle:3.0.179'
+        classpath 'net.minecraftforge.gradle:ForgeGradle:3.0.181'
         classpath 'net.sf.proguard:proguard-gradle:6.1.0beta2'
         classpath 'org.ajoberstar.grgit:grgit-gradle:3.0.0'
     }
@@ -106,10 +106,10 @@ dependencies {
 
     minecraft "net.minecraftforge:forge:${mc_version}-${forge_version}"
 
-    compileOnly fg.deobf("mezz.jei:jei-1.15.2:6.0.0.3:api")
-    compileOnly fg.deobf("com.blamejared.crafttweaker:CraftTweaker-1.15.2:6.0.0.9")
+    compileOnly fg.deobf("mezz.jei:jei-1.16.3:7.6.0.49:api")
+    compileOnly fg.deobf("com.blamejared.crafttweaker:CraftTweaker-1.16.3:7.0.0.48")
 
-    // runtimeOnly fg.deobf("mezz.jei:jei-1.15.2:6.0.0.3")
+    runtimeOnly fg.deobf("mezz.jei:jei-1.16.3:7.6.0.49")
 
     compileOnly 'com.google.auto.service:auto-service:1.0-rc7'
     annotationProcessor 'com.google.auto.service:auto-service:1.0-rc7'

doc/stub/global.lua

@@ -0,0 +1,55 @@
+--[[-
+Global functions defined by `bios.lua`. This does not include standard Lua
+functions.
+
+@module _G
+]]
+
+--[[- Pauses execution for the specified number of seconds.
+
+As it waits for a fixed amount of world ticks, `time` will automatically be
+rounded up to the nearest multiple of 0.05 seconds. If you are using coroutines
+or the @{parallel|parallel API}, it will only pause execution of the current
+thread, not the whole program.
+
+**Note** Because sleep internally uses timers, it is a function that yields.
+This means that you can use it to prevent "Too long without yielding" errors,
+however, as the minimum sleep time is 0.05 seconds, it will slow your program
+down.
+
+**Warning** Internally, this function queues and waits for a timer event (using
+@{os.startTimer}), however it does not listen for any other events. This means
+that any event that occurs while sleeping will be entirely discarded. If you
+need to receive events while sleeping, consider using @{os.startTimer|timers},
+or the @{parallel|parallel API}.
+
+@tparam number time The number of seconds to sleep for, rounded up to the
+nearest multiple of 0.05.
+
+@see os.startTimer
+]]
+function sleep(time) end
+
+function write(text) end
+function print(...) end
+function printError(...) end
+
+function read(replaceChar, history, completeFn, default) end
+
+--- The ComputerCraft and Minecraft version of the current computer environment.
+--
+-- For example, `ComputerCraft 1.93.0 (Minecraft 1.15.2)`.
+_HOST = _HOST
+
+--[[- The default computer settings as defined in the ComputerCraft
+configuration.
+
+This is a comma-separated list of settings pairs defined by the mod
+configuration or server owner. By default, it is empty.
+
+An example value to disable autocompletion:
+
+    shell.autocomplete=false,lua.autocomplete=false,edit.autocomplete=false
+
+]]
+_CC_DEFAULT_SETTINGS = _CC_DEFAULT_SETTINGS

doc/stub/os.lua

@@ -1,6 +1,121 @@
 -- Defined in bios.lua
+
+--[[- Loads the given API into the global environment.
+
+**Warning** This function is deprecated. Use of this function will pollute the
+global table, use @{require} instead.
+
+This function loads and executes the file at the given path, and all global
+variables and functions exported by it will by available through the use of
+`myAPI.<function name>`, where `myAPI` is the base name of the API file.
+
+@tparam string path The path of the API to load.
+@treturn boolean Whether or not the API was successfully loaded.
+
+@deprecated Use @{require}.
+]]
 function loadAPI(path) end
+
+--- Unloads an API which was loaded by @{os.loadAPI}.
+--
+-- This effectively removes the specified table from `_G`.
+--
+-- @tparam string name The name of the API to unload.
+-- @deprecated Use @{require}.
+function unloadAPI(name) end
+
+--[[- Pause execution of the current thread and waits for any events matching
+`filter`.
+
+This function @{coroutine.yield|yields} the current process and waits for it
+to be resumed with a vararg list where the first element matches `filter`.
+If no `filter` is supplied, this will match all events.
+
+Unlike @{os.pullEventRaw}, it will stop the application upon a "terminate"
+event, printing the error "Terminated".
+
+@tparam[opt] string filter Event to filter for.
+@treturn string event The name of the event that fired.
+@treturn any param... Optional additional parameters of the event.
+@usage Listen for `mouse_click` events.
+
+    while true do
+        local event, button, x, y = os.pullEvent("mouse_click")
+        print("Button", button, "was clicked at", x, ",", y)
+    end
+
+@usage Listen for multiple events.
+
+    while true do
+        local eventData = {os.pullEvent()}
+        local event = eventData[1]
+
+        if event == "mouse_click" then
+            print("Button", eventData[2], "was clicked at", eventData[3], ",", eventData[4])
+        elseif event == "key" then
+            print("Key code", eventData[2], "was pressed")
+        end
+    end
+
+@see os.pullEventRaw To pull the terminate event.
+]]
 function pullEvent(filter) end
+
+--[[- Pause execution of the current thread and waits for events, including the
+`terminate` event.
+
+This behaves almost the same as @{os.pullEvent}, except it allows you to handle
+the `terminate` event yourself - the program will not stop execution when
+<kbd>Ctrl+T</kbd> is pressed.
+
+@tparam[opt] string filter Event to filter for.
+@treturn string event The name of the event that fired.
+@treturn any param... Optional additional parameters of the event.
+@usage Listen for `terminate` events.
+
+    while true do
+        local event = os.pullEventRaw()
+        if event == "terminate" then
+            print("Caught terminate event!")
+        end
+    end
+
+@see os.pullEvent To pull events normally.
+]]
 function pullEventRaw(filter) end
+
+--- Pauses execution for the specified number of seconds, alias of @{_G.sleep}.
+function sleep(time) end
+
+--- Get the current CraftOS version (for example, `CraftOS 1.8`).
+--
+-- This is defined by `bios.lua`. For the current version of CC:Tweaked, this
+-- should return `CraftOS 1.8`.
+--
+-- @treturn string The current CraftOS version.
 function version() end
+
+--[[- Run the program at the given path with the specified environment and
+arguments.
+
+This function does not resolve program names like the shell does. This means
+that, for example, `os.run("edit")` will not work. As well as this, it does not
+provide access to the @{shell} API in the environment. For this behaviour, use
+@{shell.run} instead.
+
+If the program cannot be found, or failed to run, it will print the error and
+return `false`. If you want to handle this more gracefully, use an alternative
+such as @{loadfile}.
+
+@tparam table env The environment to run the program with.
+@tparam string path The exact path of the program to run.
+@param ... The arguments to pass to the program.
+@treturn boolean Whether or not the program ran successfully.
+@usage Run the default shell from within your program:
+
+    os.run({}, "/rom/programs/shell")
+
+@see shell.run
+@see loadfile
+]]
 function run(env, path, ...) end

doc/styles.css

@@ -23,7 +23,7 @@ body {
                  "Droid Sans", "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
 }
 
-code, pre, .parameter, .type, .definition-name, .reference-code {
+code, pre, kbd, .parameter, .type, .definition-name, .reference-code {
     font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
 }
 
@@ -111,7 +111,7 @@ footer {
 }
 
 /* The definition lists at the top of each page */
-table.definition-list {
+table.definition-list, table.pretty-table {
     border-collapse: collapse;
     width: 100%;
 }
@@ -128,8 +128,23 @@ table.definition-list th {
     text-align: right;
 }
 
+/* Deprecated definitions */
+table.definition-list tr.definition-deprecated th {
+    text-decoration: line-through;
+}
+
 table.definition-list td { width: 100%; }
 
+/* Pretty tables, mostly inherited from table.definition-list */
+table.pretty-table td, table.pretty-table th {
+    border: 1px solid #cccccc;
+    padding: 2px 4px;
+}
+
+table.pretty-table th {
+    background-color: #f0f0f0;
+}
+
 dl.definition dt {
     border-top: 1px solid #ccc;
     padding-top: 1em;
@@ -142,6 +157,10 @@ dl.definition dt .definition-name {
     flex-grow: 1;
 }
 
+/* Deprecated definitions */
+dl.definition dt .definition-name.definition-deprecated {
+    text-decoration: line-through;
+}
 
 dl.definition dd {
     padding-bottom: 1em;
@@ -173,6 +192,20 @@ span.parameter:after { content:":"; padding-left: 0.3em; }
     vertical-align: middle;
 }
 
+/** Fancy keyboard shortcut styling, inspired by GitHub markdown. */
+kbd {
+    display: inline-block;
+    padding: 4px 5px;
+    font-size: 0.8em;
+    line-height: 10px;
+    color: #444d56;
+    vertical-align: middle;
+    background-color: #fafbfc;
+    border: 1px solid #d1d5da;
+    border-radius: 3px;
+    box-shadow: inset 0 -1px 0 #d1d5da;
+}
+
 /* styles for prettification of source */
 .highlight .comment { color: #558817; }
 .highlight .constant { color: #a8660d; }

gradle.properties

@@ -1,7 +1,7 @@
 # Mod properties
-mod_version=1.90.0
+mod_version=1.93.1
 
 # Minecraft properties (update mods.toml when changing)
-mc_version=1.16.1
-forge_version=32.0.63
-mappings_version=20200707-1.16.1
+mc_version=1.16.3
+forge_version=34.0.1
+mappings_version=20200723-1.16.1

illuaminate.sexp

@@ -50,7 +50,7 @@
 
     ;; colours imports from colors, and we don't handle that right now.
     ;; keys is entirely dynamic, so we skip it.
-    (dynamic-modules colours keys)
+    (dynamic-modules colours keys _G)
 
     (globals
       :max
@@ -79,6 +79,7 @@
    /doc/stub/http.lua
    /doc/stub/os.lua
    /doc/stub/turtle.lua
+   /doc/stub/global.lua
    ; Java generated APIs
    /doc/javadoc/turtle.lua
    ; Peripherals
@@ -100,7 +101,14 @@
    /doc/stub/fs.lua)
   (linters -doc:unresolved-reference))
 
+;; Suppress warnings for the BIOS using its own deprecated members for now.
+(at /src/main/resources/*/computercraft/lua/bios.lua
+  (linters -var:deprecated))
+
 (at /src/test/resources/test-rom
+  ; We should still be able to test deprecated members.
+  (linters -var:deprecated)
+
   (lint
     (globals
       :max sleep write

src/main/java/dan200/computercraft/ComputerCraft.java

@@ -8,6 +8,7 @@ package dan200.computercraft;
 import dan200.computercraft.api.turtle.event.TurtleAction;
 import dan200.computercraft.core.apis.http.options.Action;
 import dan200.computercraft.core.apis.http.options.AddressRule;
+import dan200.computercraft.core.asm.GenericSource;
 import dan200.computercraft.shared.Config;
 import dan200.computercraft.shared.Registry;
 import dan200.computercraft.shared.computer.core.ClientComputerRegistry;
@@ -16,6 +17,7 @@ import dan200.computercraft.shared.peripheral.monitor.MonitorRenderer;
 import dan200.computercraft.shared.pocket.peripherals.PocketModem;
 import dan200.computercraft.shared.pocket.peripherals.PocketSpeaker;
 import dan200.computercraft.shared.turtle.upgrades.*;
+import dan200.computercraft.shared.util.ServiceUtil;
 import net.minecraftforge.fml.common.Mod;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -37,6 +39,7 @@ public final class ComputerCraft
     public static final String[] DEFAULT_HTTP_ALLOW = new String[] { "*" };
     public static final String[] DEFAULT_HTTP_DENY = new String[] {
         "127.0.0.0/8",
+        "0.0.0.0/8",
         "10.0.0.0/8",
         "172.16.0.0/12",
         "192.168.0.0/16",
@@ -60,10 +63,10 @@ public final class ComputerCraft
     public static boolean httpWebsocketEnabled = true;
     public static List<AddressRule> httpRules = Collections.unmodifiableList( Stream.concat(
         Stream.of( DEFAULT_HTTP_DENY )
-            .map( x -> AddressRule.parse( x, Action.DENY.toPartial() ) )
+            .map( x -> AddressRule.parse( x, null, Action.DENY.toPartial() ) )
             .filter( Objects::nonNull ),
         Stream.of( DEFAULT_HTTP_ALLOW )
-            .map( x -> AddressRule.parse( x, Action.ALLOW.toPartial() ) )
+            .map( x -> AddressRule.parse( x, null, Action.ALLOW.toPartial() ) )
             .filter( Objects::nonNull )
     ).collect( Collectors.toList() ) );
 
@@ -133,5 +136,6 @@ public final class ComputerCraft
     {
         Config.setup();
         Registry.setup();
+        GenericSource.setup( () -> ServiceUtil.loadServicesForge( GenericSource.class ) );
     }
 }

src/main/java/dan200/computercraft/ComputerCraftAPIImpl.java

@@ -54,7 +54,7 @@ public final class ComputerCraftAPIImpl implements IComputerCraftAPI
 
     public static InputStream getResourceFile( String domain, String subPath )
     {
-        IReloadableResourceManager manager = (IReloadableResourceManager) ServerLifecycleHooks.getCurrentServer().getDataPackRegistries().func_240970_h_();
+        IReloadableResourceManager manager = (IReloadableResourceManager) ServerLifecycleHooks.getCurrentServer().getDataPackRegistries().getResourceManager();
         try
         {
             return manager.getResource( new ResourceLocation( domain, subPath ) ).getInputStream();
@@ -97,7 +97,7 @@ public final class ComputerCraftAPIImpl implements IComputerCraftAPI
     @Override
     public IMount createResourceMount( @Nonnull String domain, @Nonnull String subPath )
     {
-        IReloadableResourceManager manager = (IReloadableResourceManager) ServerLifecycleHooks.getCurrentServer().getDataPackRegistries().func_240970_h_();
+        IReloadableResourceManager manager = (IReloadableResourceManager) ServerLifecycleHooks.getCurrentServer().getDataPackRegistries().getResourceManager();
         ResourceMount mount = ResourceMount.get( domain, subPath, manager );
         return mount.exists( "" ) ? mount : null;
     }

src/main/java/dan200/computercraft/client/gui/GuiComputer.java

@@ -91,13 +91,13 @@ public final class GuiComputer<T extends ContainerComputerBase> extends Containe
         terminalWrapper = new WidgetWrapper( terminal, MARGIN + BORDER + guiLeft, MARGIN + BORDER + guiTop, termPxWidth, termPxHeight );
 
         children.add( terminalWrapper );
-        setFocused( terminalWrapper );
+        setListener( terminalWrapper );
     }
 
     @Override
-    public void removed()
+    public void onClose()
     {
-        super.removed();
+        super.onClose();
         children.remove( terminal );
         terminal = null;
         minecraft.keyboardListener.enableRepeatEvents( false );
@@ -114,16 +114,16 @@ public final class GuiComputer<T extends ContainerComputerBase> extends Containe
     public boolean keyPressed( int key, int scancode, int modifiers )
     {
         // Forward the tab key to the terminal, rather than moving between controls.
-        if( key == GLFW.GLFW_KEY_TAB && getFocused() != null && getFocused() == terminalWrapper )
+        if( key == GLFW.GLFW_KEY_TAB && getListener() != null && getListener() == terminalWrapper )
         {
-            return getFocused().keyPressed( key, scancode, modifiers );
+            return getListener().keyPressed( key, scancode, modifiers );
         }
 
         return super.keyPressed( key, scancode, modifiers );
     }
 
     @Override
-    public void func_230450_a_( @Nonnull MatrixStack stack, float partialTicks, int mouseX, int mouseY )
+    public void drawGuiContainerBackgroundLayer( @Nonnull MatrixStack stack, float partialTicks, int mouseX, int mouseY )
     {
         // Draw terminal
         terminal.draw( terminalWrapper.getX(), terminalWrapper.getY() );
@@ -147,12 +147,12 @@ public final class GuiComputer<T extends ContainerComputerBase> extends Containe
     @Override
     public boolean mouseDragged( double x, double y, int button, double deltaX, double deltaY )
     {
-        return (getFocused() != null && getFocused().mouseDragged( x, y, button, deltaX, deltaY ))
+        return (getListener() != null && getListener().mouseDragged( x, y, button, deltaX, deltaY ))
             || super.mouseDragged( x, y, button, deltaX, deltaY );
     }
 
     @Override
-    protected void func_230451_b_( @Nonnull MatrixStack transform, int mouseX, int mouseY )
+    protected void drawGuiContainerForegroundLayer( @Nonnull MatrixStack transform, int mouseX, int mouseY )
     {
         // Skip rendering labels.
     }

src/main/java/dan200/computercraft/client/gui/GuiDiskDrive.java

@@ -25,7 +25,7 @@ public class GuiDiskDrive extends ContainerScreen<ContainerDiskDrive>
     }
 
     @Override
-    protected void func_230450_a_( @Nonnull MatrixStack transform, float partialTicks, int mouseX, int mouseY )
+    protected void drawGuiContainerBackgroundLayer( @Nonnull MatrixStack transform, float partialTicks, int mouseX, int mouseY )
     {
         RenderSystem.color4f( 1.0F, 1.0F, 1.0F, 1.0F );
         minecraft.getTextureManager().bindTexture( BACKGROUND );

src/main/java/dan200/computercraft/client/gui/GuiPrinter.java

@@ -33,7 +33,7 @@ public class GuiPrinter extends ContainerScreen<ContainerPrinter>
     }*/
 
     @Override
-    protected void func_230450_a_( @Nonnull MatrixStack transform, float partialTicks, int mouseX, int mouseY )
+    protected void drawGuiContainerBackgroundLayer( @Nonnull MatrixStack transform, float partialTicks, int mouseX, int mouseY )
     {
         RenderSystem.color4f( 1.0F, 1.0F, 1.0F, 1.0F );
         minecraft.getTextureManager().bindTexture( BACKGROUND );

src/main/java/dan200/computercraft/client/gui/GuiPrintout.java

@@ -15,7 +15,6 @@ import net.minecraft.client.gui.screen.inventory.ContainerScreen;
 import net.minecraft.client.renderer.IRenderTypeBuffer;
 import net.minecraft.entity.player.PlayerInventory;
 import net.minecraft.util.math.vector.Matrix4f;
-import net.minecraft.util.math.vector.TransformationMatrix;
 import net.minecraft.util.text.ITextComponent;
 import org.lwjgl.glfw.GLFW;
 
@@ -25,8 +24,6 @@ import static dan200.computercraft.client.render.PrintoutRenderer.*;
 
 public class GuiPrintout extends ContainerScreen<ContainerHeldItem>
 {
-    private static final Matrix4f IDENTITY = TransformationMatrix.identity().getMatrix();
-
     private final boolean m_book;
     private final int m_pages;
     private final TextBuffer[] m_text;
@@ -94,7 +91,7 @@ public class GuiPrintout extends ContainerScreen<ContainerHeldItem>
     }
 
     @Override
-    protected void func_230450_a_( @Nonnull MatrixStack transform, float partialTicks, int mouseX, int mouseY )
+    protected void drawGuiContainerBackgroundLayer( @Nonnull MatrixStack transform, float partialTicks, int mouseX, int mouseY )
     {
         // Draw the printout
         RenderSystem.color4f( 1.0f, 1.0f, 1.0f, 1.0f );
@@ -116,11 +113,10 @@ public class GuiPrintout extends ContainerScreen<ContainerHeldItem>
         setBlitOffset( getBlitOffset() + 1 );
 
         super.render( stack, mouseX, mouseY, partialTicks );
-        func_230459_a_( stack, mouseX, mouseY );
     }
 
     @Override
-    protected void func_230451_b_( @Nonnull MatrixStack transform, int mouseX, int mouseY )
+    protected void drawGuiContainerForegroundLayer( @Nonnull MatrixStack transform, int mouseX, int mouseY )
     {
         // Skip rendering labels.
     }

src/main/java/dan200/computercraft/client/gui/GuiTurtle.java

@@ -64,13 +64,13 @@ public class GuiTurtle extends ContainerScreen<ContainerTurtle>
         terminalWrapper = new WidgetWrapper( terminal, 2 + 8 + guiLeft, 2 + 8 + guiTop, termPxWidth, termPxHeight );
 
         children.add( terminalWrapper );
-        setFocused( terminalWrapper );
+        setListener( terminalWrapper );
     }
 
     @Override
-    public void removed()
+    public void onClose()
     {
-        super.removed();
+        super.onClose();
         children.remove( terminal );
         terminal = null;
         minecraft.keyboardListener.enableRepeatEvents( false );
@@ -87,41 +87,38 @@ public class GuiTurtle extends ContainerScreen<ContainerTurtle>
     public boolean keyPressed( int key, int scancode, int modifiers )
     {
         // Forward the tab key to the terminal, rather than moving between controls.
-        if( key == GLFW.GLFW_KEY_TAB && getFocused() != null && getFocused() == terminalWrapper )
+        if( key == GLFW.GLFW_KEY_TAB && getListener() != null && getListener() == terminalWrapper )
         {
-            return getFocused().keyPressed( key, scancode, modifiers );
+            return getListener().keyPressed( key, scancode, modifiers );
         }
 
         return super.keyPressed( key, scancode, modifiers );
     }
 
-    private void drawSelectionSlot( boolean advanced )
-    {
-        // Draw selection slot
-        int slot = m_container.getSelectedSlot();
-        if( slot >= 0 )
-        {
-            RenderSystem.color4f( 1.0F, 1.0F, 1.0F, 1.0F );
-            int slotX = slot % 4;
-            int slotY = slot / 4;
-            minecraft.getTextureManager().bindTexture( advanced ? BACKGROUND_ADVANCED : BACKGROUND_NORMAL );
-            // TODO: blit( guiLeft + ContainerTurtle.TURTLE_START_X - 2 + slotX * 18, guiTop + ContainerTurtle.PLAYER_START_Y - 2 + slotY * 18, 0, 217, 24, 24 );
-        }
-    }
-
     @Override
-    protected void func_230450_a_( @Nonnull MatrixStack transform, float partialTicks, int mouseX, int mouseY )
+    protected void drawGuiContainerBackgroundLayer( @Nonnull MatrixStack transform, float partialTicks, int mouseX, int mouseY )
     {
         // Draw term
-        boolean advanced = m_family == ComputerFamily.ADVANCED;
+        ResourceLocation texture = m_family == ComputerFamily.ADVANCED ? BACKGROUND_ADVANCED : BACKGROUND_NORMAL;
         terminal.draw( terminalWrapper.getX(), terminalWrapper.getY() );
 
         // Draw border/inventory
         RenderSystem.color4f( 1.0F, 1.0F, 1.0F, 1.0F );
-        minecraft.getTextureManager().bindTexture( advanced ? BACKGROUND_ADVANCED : BACKGROUND_NORMAL );
+        minecraft.getTextureManager().bindTexture( texture );
         blit( transform, guiLeft, guiTop, 0, 0, xSize, ySize );
 
-        drawSelectionSlot( advanced );
+        // Draw selection slot
+        int slot = m_container.getSelectedSlot();
+        if( slot >= 0 )
+        {
+            int slotX = slot % 4;
+            int slotY = slot / 4;
+            blit( transform,
+                guiLeft + ContainerTurtle.TURTLE_START_X - 2 + slotX * 18,
+                guiTop + ContainerTurtle.PLAYER_START_Y - 2 + slotY * 18,
+                0, 217, 24, 24
+            );
+        }
     }
 
     @Override
@@ -135,12 +132,12 @@ public class GuiTurtle extends ContainerScreen<ContainerTurtle>
     @Override
     public boolean mouseDragged( double x, double y, int button, double deltaX, double deltaY )
     {
-        return (getFocused() != null && getFocused().mouseDragged( x, y, button, deltaX, deltaY ))
+        return (getListener() != null && getListener().mouseDragged( x, y, button, deltaX, deltaY ))
             || super.mouseDragged( x, y, button, deltaX, deltaY );
     }
 
     @Override
-    protected void func_230451_b_( @Nonnull MatrixStack transform, int mouseX, int mouseY )
+    protected void drawGuiContainerForegroundLayer( @Nonnull MatrixStack transform, int mouseX, int mouseY )
     {
         // Skip rendering labels.
     }

src/main/java/dan200/computercraft/core/apis/FSAPI.java

@@ -479,6 +479,7 @@ public class FSAPI implements ILuaAPI
             BasicFileAttributes attributes = fileSystem.getAttributes( path );
             Map<String, Object> result = new HashMap<>();
             result.put( "modification", getFileTime( attributes.lastModifiedTime() ) );
+            result.put( "modified", getFileTime( attributes.lastModifiedTime() ) );
             result.put( "created", getFileTime( attributes.creationTime() ) );
             result.put( "size", attributes.isDirectory() ? 0 : attributes.size() );
             result.put( "isDir", attributes.isDirectory() );

src/main/java/dan200/computercraft/core/apis/OSAPI.java

@@ -171,12 +171,18 @@ public class OSAPI implements ILuaAPI
 
     /**
      * Starts a timer that will run for the specified number of seconds. Once
-     * the timer fires, a timer event will be added to the queue with the ID
-     * returned from this function as the first parameter.
+     * the timer fires, a {@code timer} event will be added to the queue with
+     * the ID returned from this function as the first parameter.
+     *
+     * As with @{os.sleep|sleep}, {@code timer} will automatically be rounded up
+     * to the nearest multiple of 0.05 seconds, as it waits for a fixed amount
+     * of world ticks.
      *
      * @param timer The number of seconds until the timer fires.
-     * @return The ID of the new timer.
+     * @return The ID of the new timer. This can be used to filter the
+     *   {@code timer} event, or {@link #cancelTimer cancel the timer}.
      * @throws LuaException If the time is below zero.
+     * @see #cancelTimer To cancel a timer.
      */
     @LuaFunction
     public final int startTimer( double timer ) throws LuaException
@@ -199,11 +205,14 @@ public class OSAPI implements ILuaAPI
 
     /**
      * Sets an alarm that will fire at the specified world time. When it fires,
-     * an alarm event will be added to the event queue.
+     * an {@code alarm} event will be added to the event queue with the ID
+     * returned from this function as the first parameter.
      *
      * @param time The time at which to fire the alarm, in the range [0.0, 24.0).
-     * @return The ID of the alarm that was set.
+     * @return The ID of the new alarm. This can be used to filter the
+     *   {@code alarm} event, or {@link #cancelAlarm cancel the alarm}.
      * @throws LuaException If the time is out of range.
+     * @see #cancelAlarm To cancel an alarm.
      */
     @LuaFunction
     public final int setAlarm( double time ) throws LuaException

src/main/java/dan200/computercraft/core/apis/http/CheckUrl.java

@@ -24,14 +24,14 @@ public class CheckUrl extends Resource<CheckUrl>
 
     private final IAPIEnvironment environment;
     private final String address;
-    private final String host;
+    private final URI uri;
 
     public CheckUrl( ResourceGroup<CheckUrl> limiter, IAPIEnvironment environment, String address, URI uri )
     {
         super( limiter );
         this.environment = environment;
         this.address = address;
-        host = uri.getHost();
+        this.uri = uri;
     }
 
     public void run()
@@ -47,8 +47,9 @@ public class CheckUrl extends Resource<CheckUrl>
 
         try
         {
-            InetSocketAddress netAddress = NetworkUtils.getAddress( host, 80, false );
-            NetworkUtils.getOptions( host, netAddress );
+            boolean ssl = uri.getScheme().equalsIgnoreCase( "https" );
+            InetSocketAddress netAddress = NetworkUtils.getAddress( uri, ssl );
+            NetworkUtils.getOptions( uri.getHost(), netAddress );
 
             if( tryClose() ) environment.queueEvent( EVENT, address, true );
         }

src/main/java/dan200/computercraft/core/apis/http/NetworkUtils.java

@@ -19,6 +19,7 @@ import io.netty.handler.ssl.SslContextBuilder;
 import javax.net.ssl.SSLException;
 import javax.net.ssl.TrustManagerFactory;
 import java.net.InetSocketAddress;
+import java.net.URI;
 import java.security.KeyStore;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.SynchronousQueue;
@@ -99,6 +100,21 @@ public final class NetworkUtils
         }
     }
 
+    /**
+     * Create a {@link InetSocketAddress} from a {@link java.net.URI}.
+     *
+     * Note, this may require a DNS lookup, and so should not be executed on the main CC thread.
+     *
+     * @param uri The URI to fetch.
+     * @param ssl Whether to connect with SSL. This is used to find the default port if not otherwise specified.
+     * @return The resolved address.
+     * @throws HTTPRequestException If the host is not malformed.
+     */
+    public static InetSocketAddress getAddress( URI uri, boolean ssl ) throws HTTPRequestException
+    {
+        return getAddress( uri.getHost(), uri.getPort(), ssl );
+    }
+
     /**
      * Create a {@link InetSocketAddress} from the resolved {@code host} and port.
      *
@@ -128,7 +144,7 @@ public final class NetworkUtils
      */
     public static Options getOptions( String host, InetSocketAddress address ) throws HTTPRequestException
     {
-        Options options = AddressRule.apply( ComputerCraft.httpRules, host, address.getAddress() );
+        Options options = AddressRule.apply( ComputerCraft.httpRules, host, address );
         if( options.action == Action.DENY ) throw new HTTPRequestException( "Domain not permitted" );
         return options;
     }

src/main/java/dan200/computercraft/core/apis/http/options/AddressRule.java

@@ -12,6 +12,7 @@ import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import java.net.Inet6Address;
 import java.net.InetAddress;
+import java.net.InetSocketAddress;
 import java.util.regex.Pattern;
 
 /**
@@ -52,17 +53,23 @@ public final class AddressRule
 
     private final HostRange ip;
     private final Pattern domainPattern;
+    private final Integer port;
     private final PartialOptions partial;
 
-    private AddressRule( @Nullable HostRange ip, @Nullable Pattern domainPattern, @Nonnull PartialOptions partial )
+    private AddressRule(
+        @Nullable HostRange ip,
+        @Nullable Pattern domainPattern,
+        @Nullable Integer port,
+        @Nonnull PartialOptions partial )
     {
         this.ip = ip;
         this.domainPattern = domainPattern;
         this.partial = partial;
+        this.port = port;
     }
 
     @Nullable
-    public static AddressRule parse( String filter, @Nonnull PartialOptions partial )
+    public static AddressRule parse( String filter, @Nullable Integer port, @Nonnull PartialOptions partial )
     {
         int cidr = filter.indexOf( '/' );
         if( cidr >= 0 )
@@ -117,24 +124,27 @@ public final class AddressRule
                 size -= 8;
             }
 
-            return new AddressRule( new HostRange( minBytes, maxBytes ), null, partial );
+            return new AddressRule( new HostRange( minBytes, maxBytes ), null, port, partial );
         }
         else
         {
             Pattern pattern = Pattern.compile( "^\\Q" + filter.replaceAll( "\\*", "\\\\E.*\\\\Q" ) + "\\E$" );
-            return new AddressRule( null, pattern, partial );
+            return new AddressRule( null, pattern, port, partial );
         }
     }
 
     /**
      * Determine whether the given address matches a series of patterns.
      *
-     * @param domain  The domain to match
-     * @param address The address to check.
+     * @param domain        The domain to match
+     * @param socketAddress The address to check.
      * @return Whether it matches any of these patterns.
      */
-    private boolean matches( String domain, InetAddress address )
+    private boolean matches( String domain, InetSocketAddress socketAddress )
     {
+        InetAddress address = socketAddress.getAddress();
+        if( port != null && port != socketAddress.getPort() ) return false;
+
         if( domainPattern != null )
         {
             if( domainPattern.matcher( domain ).matches() ) return true;
@@ -155,7 +165,7 @@ public final class AddressRule
         return ip != null && ip.contains( address );
     }
 
-    public static Options apply( Iterable<? extends AddressRule> rules, String domain, InetAddress address )
+    public static Options apply( Iterable<? extends AddressRule> rules, String domain, InetSocketAddress address )
     {
         PartialOptions options = null;
         boolean hasMany = false;

src/main/java/dan200/computercraft/core/apis/http/options/AddressRuleConfig.java

@@ -49,12 +49,14 @@ public class AddressRuleConfig
     public static boolean checkRule( UnmodifiableConfig builder )
     {
         String hostObj = get( builder, "host", String.class ).orElse( null );
+        Integer port = get( builder, "port", Number.class ).map( Number::intValue ).orElse( null );
         return hostObj != null && checkEnum( builder, "action", Action.class )
+            && check( builder, "port", Number.class )
             && check( builder, "timeout", Number.class )
             && check( builder, "max_upload", Number.class )
             && check( builder, "max_download", Number.class )
             && check( builder, "websocket_message", Number.class )
-            && AddressRule.parse( hostObj, PartialOptions.DEFAULT ) != null;
+            && AddressRule.parse( hostObj, port, PartialOptions.DEFAULT ) != null;
     }
 
     @Nullable
@@ -64,6 +66,7 @@ public class AddressRuleConfig
         if( hostObj == null ) return null;
 
         Action action = getEnum( builder, "action", Action.class ).orElse( null );
+        Integer port = get( builder, "port", Number.class ).map( Number::intValue ).orElse( null );
         Integer timeout = get( builder, "timeout", Number.class ).map( Number::intValue ).orElse( null );
         Long maxUpload = get( builder, "max_upload", Number.class ).map( Number::longValue ).orElse( null );
         Long maxDownload = get( builder, "max_download", Number.class ).map( Number::longValue ).orElse( null );
@@ -77,7 +80,7 @@ public class AddressRuleConfig
             websocketMessage
         );
 
-        return AddressRule.parse( hostObj, options );
+        return AddressRule.parse( hostObj, port, options );
     }
 
     private static <T> boolean check( UnmodifiableConfig config, String field, Class<T> klass )

src/main/java/dan200/computercraft/core/apis/http/request/HttpRequest.java

@@ -136,7 +136,7 @@ public class HttpRequest extends Resource<HttpRequest>
         try
         {
             boolean ssl = uri.getScheme().equalsIgnoreCase( "https" );
-            InetSocketAddress socketAddress = NetworkUtils.getAddress( uri.getHost(), uri.getPort(), ssl );
+            InetSocketAddress socketAddress = NetworkUtils.getAddress( uri, ssl );
             Options options = NetworkUtils.getOptions( uri.getHost(), socketAddress );
             SslContext sslContext = ssl ? NetworkUtils.getSslContext() : null;
 

src/main/java/dan200/computercraft/core/apis/http/websocket/Websocket.java

@@ -129,8 +129,7 @@ public class Websocket extends Resource<Websocket>
         try
         {
             boolean ssl = uri.getScheme().equalsIgnoreCase( "wss" );
-
-            InetSocketAddress socketAddress = NetworkUtils.getAddress( uri.getHost(), uri.getPort(), ssl );
+            InetSocketAddress socketAddress = NetworkUtils.getAddress( uri, ssl );
             Options options = NetworkUtils.getOptions( uri.getHost(), socketAddress );
             SslContext sslContext = ssl ? NetworkUtils.getSslContext() : null;
 

src/main/java/dan200/computercraft/core/asm/GenericSource.java

@@ -9,6 +9,7 @@ package dan200.computercraft.core.asm;
 import dan200.computercraft.ComputerCraft;
 import dan200.computercraft.api.lua.LuaFunction;
 import dan200.computercraft.shared.peripheral.generic.GenericPeripheralProvider;
+import dan200.computercraft.shared.util.ServiceUtil;
 import net.minecraft.util.ResourceLocation;
 
 import javax.annotation.Nonnull;
@@ -16,11 +17,12 @@ import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
 import java.lang.reflect.Type;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 import java.util.Objects;
-import java.util.ServiceLoader;
+import java.util.function.Supplier;
 import java.util.stream.Collectors;
-import java.util.stream.StreamSupport;
+import java.util.stream.Stream;
 
 /**
  * A generic source of {@link LuaMethod} functions. This allows for injecting methods onto objects you do not own.
@@ -42,6 +44,18 @@ public interface GenericSource
     @Nonnull
     ResourceLocation id();
 
+    /**
+     * Register a stream of generic sources.
+     *
+     * @param sources The source of generic methods.
+     * @see ServiceUtil For ways to load this. Sadly {@link java.util.ServiceLoader} is broken under Forge, but we don't
+     * want to add a hard-dep on Forge within core either.
+     */
+    static void setup( Supplier<Stream<GenericSource>> sources )
+    {
+        GenericMethod.sources = sources;
+    }
+
     /**
      * A generic method is a method belonging to a {@link GenericSource} with a known target.
      */
@@ -51,6 +65,7 @@ public interface GenericSource
         final LuaFunction annotation;
         final Class<?> target;
 
+        static Supplier<Stream<GenericSource>> sources;
         private static List<GenericMethod> cache;
 
         GenericMethod( Method method, LuaFunction annotation, Class<?> target )
@@ -68,10 +83,16 @@ public interface GenericSource
         static List<GenericMethod> all()
         {
             if( cache != null ) return cache;
-            return cache = StreamSupport
-                .stream( ServiceLoader.load( GenericSource.class, GenericSource.class.getClassLoader() ).spliterator(), false )
+            if( sources == null )
+            {
+                ComputerCraft.log.warn( "Getting GenericMethods without a provider" );
+                return cache = Collections.emptyList();
+            }
+
+            return cache = sources.get()
                 .flatMap( x -> Arrays.stream( x.getClass().getDeclaredMethods() ) )
-                .map( method -> {
+                .map( method ->
+                {
                     LuaFunction annotation = method.getAnnotation( LuaFunction.class );
                     if( annotation == null ) return null;
 

src/main/java/dan200/computercraft/core/computer/ComputerThread.java

@@ -395,14 +395,7 @@ public final class ComputerThread
                             executor.timeout.hardAbort();
                             executor.abort();
 
-                            if( afterHardAbort >= ABORT_TIMEOUT )
-                            {
-                                // If we've hard aborted but we're still not dead, dump the stack trace and interrupt
-                                // the task.
-                                timeoutTask( executor, runner.owner, afterStart );
-                                runner.owner.interrupt();
-                            }
-                            else if( afterHardAbort >= ABORT_TIMEOUT * 2 )
+                            if( afterHardAbort >= ABORT_TIMEOUT * 2 )
                             {
                                 // If we've hard aborted and interrupted, and we're still not dead, then mark the runner
                                 // as dead, finish off the task, and spawn a new runner.
@@ -421,6 +414,13 @@ public final class ComputerThread
                                     }
                                 }
                             }
+                            else if( afterHardAbort >= ABORT_TIMEOUT )
+                            {
+                                // If we've hard aborted but we're still not dead, dump the stack trace and interrupt
+                                // the task.
+                                timeoutTask( executor, runner.owner, afterStart );
+                                runner.owner.interrupt();
+                            }
                         }
                     }
                 }

src/main/java/dan200/computercraft/core/filesystem/FileSystemWrapperMount.java

@@ -124,7 +124,7 @@ public class FileSystemWrapperMount implements IFileSystem
     {
         try
         {
-            return m_filesystem.exists( path );
+            return m_filesystem.isDir( path );
         }
         catch( FileSystemException e )
         {

src/main/java/dan200/computercraft/core/lua/VarargArguments.java

@@ -83,9 +83,9 @@ class VarargArguments implements IArguments
     public ByteBuffer getBytes( int index ) throws LuaException
     {
         LuaValue value = varargs.arg( index + 1 );
-        if( !(value instanceof LuaString) ) throw LuaValues.badArgument( index, "string", value.typeName() );
+        if( !(value instanceof LuaBaseString) ) throw LuaValues.badArgument( index, "string", value.typeName() );
 
-        LuaString str = (LuaString) value;
+        LuaString str = ((LuaBaseString) value).strvalue();
         return ByteBuffer.wrap( str.bytes, str.offset, str.length ).asReadOnlyBuffer();
     }
 
@@ -94,9 +94,9 @@ class VarargArguments implements IArguments
     {
         LuaValue value = varargs.arg( index + 1 );
         if( value.isNil() ) return Optional.empty();
-        if( !(value instanceof LuaString) ) throw LuaValues.badArgument( index, "string", value.typeName() );
+        if( !(value instanceof LuaBaseString) ) throw LuaValues.badArgument( index, "string", value.typeName() );
 
-        LuaString str = (LuaString) value;
+        LuaString str = ((LuaBaseString) value).strvalue();
         return Optional.of( ByteBuffer.wrap( str.bytes, str.offset, str.length ).asReadOnlyBuffer() );
     }
 }

src/main/java/dan200/computercraft/data/Generators.java

@@ -7,7 +7,6 @@
 package dan200.computercraft.data;
 
 import dan200.computercraft.shared.proxy.ComputerCraftProxyCommon;
-import net.minecraft.data.BlockTagsProvider;
 import net.minecraft.data.DataGenerator;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.common.Mod;
@@ -24,6 +23,6 @@ public class Generators
         DataGenerator generator = event.getGenerator();
         generator.addProvider( new Recipes( generator ) );
         generator.addProvider( new LootTables( generator ) );
-        generator.addProvider( new Tags( generator, new BlockTagsProvider( generator ) ) );
+        generator.addProvider( new Tags( generator, event.getExistingFileHelper() ) );
     }
 }

src/main/java/dan200/computercraft/data/Tags.java

@@ -15,6 +15,7 @@ import net.minecraft.item.Item;
 import net.minecraft.tags.ITag;
 import net.minecraft.tags.ItemTags;
 import net.minecraft.util.ResourceLocation;
+import net.minecraftforge.common.data.ExistingFileHelper;
 
 import static dan200.computercraft.data.Tags.CCTags.*;
 
@@ -30,24 +31,24 @@ public class Tags extends ItemTagsProvider
         public static final ITag.INamedTag<Item> MONITOR = item( "monitor" );
     }
 
-    public Tags( DataGenerator generator, BlockTagsProvider tags )
+    public Tags( DataGenerator generator, ExistingFileHelper helper )
     {
-        super( generator, tags );
+        super( generator, new BlockTagsProvider( generator, ComputerCraft.MOD_ID, helper ), ComputerCraft.MOD_ID, helper );
     }
 
     @Override
     protected void registerTags()
     {
-        func_240522_a_( COMPUTER ).func_240534_a_(
+        getOrCreateBuilder( COMPUTER ).add(
             Registry.ModItems.COMPUTER_NORMAL.get(),
             Registry.ModItems.COMPUTER_ADVANCED.get(),
             Registry.ModItems.COMPUTER_COMMAND.get()
         );
-        func_240522_a_( TURTLE ).func_240534_a_( Registry.ModItems.TURTLE_NORMAL.get(), Registry.ModItems.TURTLE_ADVANCED.get() );
-        func_240522_a_( WIRED_MODEM ).func_240534_a_( Registry.ModItems.WIRED_MODEM.get(), Registry.ModItems.WIRED_MODEM_FULL.get() );
-        func_240522_a_( MONITOR ).func_240534_a_( Registry.ModItems.MONITOR_NORMAL.get(), Registry.ModItems.MONITOR_ADVANCED.get() );
+        getOrCreateBuilder( TURTLE ).add( Registry.ModItems.TURTLE_NORMAL.get(), Registry.ModItems.TURTLE_ADVANCED.get() );
+        getOrCreateBuilder( WIRED_MODEM ).add( Registry.ModItems.WIRED_MODEM.get(), Registry.ModItems.WIRED_MODEM_FULL.get() );
+        getOrCreateBuilder( MONITOR ).add( Registry.ModItems.MONITOR_NORMAL.get(), Registry.ModItems.MONITOR_ADVANCED.get() );
 
-        func_240522_a_( PIGLIN_LOVED ).func_240534_a_(
+        getOrCreateBuilder( PIGLIN_LOVED ).add(
             Registry.ModItems.COMPUTER_ADVANCED.get(), Registry.ModItems.TURTLE_ADVANCED.get(),
             Registry.ModItems.WIRELESS_MODEM_ADVANCED.get(), Registry.ModItems.POCKET_COMPUTER_ADVANCED.get(),
             Registry.ModItems.MONITOR_ADVANCED.get()

src/main/java/dan200/computercraft/shared/command/CommandComputerCraft.java

@@ -289,11 +289,11 @@ public final class CommandComputerCraft
         // Append the computer instance
         if( serverComputer == null )
         {
-            out.func_230529_a_( text( "?" ) );
+            out.append( text( "?" ) );
         }
         else
         {
-            out.func_230529_a_( link(
+            out.append( link(
                 text( Integer.toString( serverComputer.getInstanceID() ) ),
                 "/computercraft dump " + serverComputer.getInstanceID(),
                 translate( "commands.computercraft.dump.action" )
@@ -301,20 +301,20 @@ public final class CommandComputerCraft
         }
 
         // And ID
-        out.func_240702_b_( " (id " + computerId + ")" );
+        out.appendString( " (id " + computerId + ")" );
 
         // And, if we're a player, some useful links
         if( serverComputer != null && UserLevel.OP.test( source ) && isPlayer( source ) )
         {
             out
-                .func_240702_b_( " " )
-                .func_230529_a_( link(
+                .appendString( " " )
+                .append( link(
                     text( "\u261b" ),
                     "/computercraft tp " + serverComputer.getInstanceID(),
                     translate( "commands.computercraft.tp.action" )
                 ) )
-                .func_240702_b_( " " )
-                .func_230529_a_( link(
+                .appendString( " " )
+                .append( link(
                     text( "\u20e2" ),
                     "/computercraft view " + serverComputer.getInstanceID(),
                     translate( "commands.computercraft.view.action" )

src/main/java/dan200/computercraft/shared/command/CommandCopy.java

@@ -12,6 +12,7 @@ import net.minecraft.client.Minecraft;
 import net.minecraft.command.CommandSource;
 import net.minecraft.util.text.ITextComponent;
 import net.minecraft.util.text.StringTextComponent;
+import net.minecraft.util.text.Style;
 import net.minecraft.util.text.TranslationTextComponent;
 import net.minecraft.util.text.event.ClickEvent;
 import net.minecraft.util.text.event.HoverEvent;
@@ -57,10 +58,8 @@ public final class CommandCopy
 
     public static ITextComponent createCopyText( String text )
     {
-        StringTextComponent name = new StringTextComponent( text );
-        name.getStyle()
+        return new StringTextComponent( text ).mergeStyle( Style.EMPTY
             .setClickEvent( new ClickEvent( ClickEvent.Action.RUN_COMMAND, PREFIX + text ) )
-            .setHoverEvent( new HoverEvent( HoverEvent.Action.SHOW_TEXT, new TranslationTextComponent( "gui.computercraft.tooltip.copy" ) ) );
-        return name;
+            .setHoverEvent( new HoverEvent( HoverEvent.Action.SHOW_TEXT, new TranslationTextComponent( "gui.computercraft.tooltip.copy" ) ) ) );
     }
 }

src/main/java/dan200/computercraft/shared/command/builder/HelpingArgumentBuilder.java

@@ -175,11 +175,11 @@ public final class HelpingArgumentBuilder extends LiteralArgumentBuilder<Command
         String usage = dispatcher.getSmartUsage( temp, context.getSource() ).get( node ).substring( node.getName().length() );
 
         IFormattableTextComponent output = new StringTextComponent( "" )
-            .func_230529_a_( coloured( "/" + command + usage, HEADER ) )
-            .func_240702_b_( " " )
-            .func_230529_a_( coloured( translate( "commands." + id + ".synopsis" ), SYNOPSIS ) )
-            .func_240702_b_( "\n" )
-            .func_230529_a_( translate( "commands." + id + ".desc" ) );
+            .append( coloured( "/" + command + usage, HEADER ) )
+            .appendString( " " )
+            .append( coloured( translate( "commands." + id + ".synopsis" ), SYNOPSIS ) )
+            .appendString( "\n" )
+            .append( translate( "commands." + id + ".desc" ) );
 
         for( CommandNode<CommandSource> child : node.getChildren() )
         {
@@ -188,16 +188,16 @@ public final class HelpingArgumentBuilder extends LiteralArgumentBuilder<Command
                 continue;
             }
 
-            output.func_240702_b_( "\n" );
+            output.appendString( "\n" );
 
             IFormattableTextComponent component = coloured( child.getName(), NAME );
             component.getStyle().setClickEvent( new ClickEvent(
                 ClickEvent.Action.SUGGEST_COMMAND,
                 "/" + command + " " + child.getName()
             ) );
-            output.func_230529_a_( component );
+            output.append( component );
 
-            output.func_240702_b_( " - " ).func_230529_a_( translate( "commands." + id + "." + child.getName() + ".synopsis" ) );
+            output.appendString( " - " ).append( translate( "commands." + id + "." + child.getName() + ".synopsis" ) );
         }
 
         return output;

src/main/java/dan200/computercraft/shared/command/text/ChatHelpers.java

@@ -21,14 +21,12 @@ public final class ChatHelpers
 
     public static IFormattableTextComponent coloured( String text, TextFormatting colour )
     {
-        IFormattableTextComponent component = new StringTextComponent( text == null ? "" : text );
-        component.getStyle().setFormatting( colour );
-        return component;
+        return new StringTextComponent( text == null ? "" : text ).mergeStyle( colour );
     }
 
     public static <T extends IFormattableTextComponent> T coloured( T component, TextFormatting colour )
     {
-        component.getStyle().setFormatting( colour );
+        component.mergeStyle( colour );
         return component;
     }
 
@@ -52,7 +50,7 @@ public final class ChatHelpers
         IFormattableTextComponent component = new StringTextComponent( "" );
         for( ITextComponent child : children )
         {
-            component.func_230529_a_( child );
+            component.append( child );
         }
         return component;
     }
@@ -74,11 +72,11 @@ public final class ChatHelpers
     {
         Style style = component.getStyle();
 
-        if( style.getColor() == null ) style.setFormatting( TextFormatting.YELLOW );
-        style.setClickEvent( new ClickEvent( ClickEvent.Action.RUN_COMMAND, command ) );
-        style.setHoverEvent( new HoverEvent( HoverEvent.Action.SHOW_TEXT, toolTip ) );
+        if( style.getColor() == null ) style = style.setFormatting( TextFormatting.YELLOW );
+        style = style.setClickEvent( new ClickEvent( ClickEvent.Action.RUN_COMMAND, command ) );
+        style = style.setHoverEvent( new HoverEvent( HoverEvent.Action.SHOW_TEXT, toolTip ) );
 
-        return component;
+        return component.setStyle( style );
     }
 
     public static IFormattableTextComponent header( String text )

src/main/java/dan200/computercraft/shared/command/text/TableFormatter.java

@@ -79,12 +79,12 @@ public interface TableFormatter
             StringTextComponent line = new StringTextComponent( "" );
             for( int i = 0; i < columns - 1; i++ )
             {
-                line.func_230529_a_( headers[i] );
+                line.append( headers[i] );
                 ITextComponent padding = getPadding( headers[i], maxWidths[i] );
-                if( padding != null ) line.func_230529_a_( padding );
-                line.func_230529_a_( SEPARATOR );
+                if( padding != null ) line.append( padding );
+                line.append( SEPARATOR );
             }
-            line.func_230529_a_( headers[columns - 1] );
+            line.append( headers[columns - 1] );
 
             writeLine( rowId++, line );
 
@@ -100,12 +100,12 @@ public interface TableFormatter
             StringTextComponent line = new StringTextComponent( "" );
             for( int i = 0; i < columns - 1; i++ )
             {
-                line.func_230529_a_( row[i] );
+                line.append( row[i] );
                 ITextComponent padding = getPadding( row[i], maxWidths[i] );
-                if( padding != null ) line.func_230529_a_( padding );
-                line.func_230529_a_( SEPARATOR );
+                if( padding != null ) line.append( padding );
+                line.append( SEPARATOR );
             }
-            line.func_230529_a_( row[columns - 1] );
+            line.append( row[columns - 1] );
             writeLine( rowId++, line );
         }
 

src/main/java/dan200/computercraft/shared/computer/blocks/BlockComputerBase.java

@@ -25,7 +25,9 @@ import net.minecraft.util.Direction;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.RayTraceResult;
+import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.world.IBlockReader;
+import net.minecraft.world.IWorldReader;
 import net.minecraft.world.World;
 import net.minecraft.world.server.ServerWorld;
 import net.minecraftforge.fml.RegistryObject;
@@ -138,6 +140,7 @@ public abstract class BlockComputerBase<T extends TileComputerBase> extends Bloc
     public void onBlockHarvested( @Nonnull World world, @Nonnull BlockPos pos, @Nonnull BlockState state, @Nonnull PlayerEntity player )
     {
         if( !(world instanceof ServerWorld) ) return;
+        ServerWorld serverWorld = (ServerWorld) world;
 
         // We drop the item here instead of doing it in the harvest method, as we should
         // drop computers for creative players too.
@@ -146,19 +149,19 @@ public abstract class BlockComputerBase<T extends TileComputerBase> extends Bloc
         if( tile instanceof TileComputerBase )
         {
             TileComputerBase computer = (TileComputerBase) tile;
-            LootContext.Builder context = new LootContext.Builder( (ServerWorld) world )
+            LootContext.Builder context = new LootContext.Builder( serverWorld )
                 .withRandom( world.rand )
-                .withParameter( LootParameters.POSITION, pos )
+                .withParameter( LootParameters.field_237457_g_, Vector3d.copyCentered( pos ) )
                 .withParameter( LootParameters.TOOL, player.getHeldItemMainhand() )
                 .withParameter( LootParameters.THIS_ENTITY, player )
-                .withNullableParameter( LootParameters.BLOCK_ENTITY, tile )
+                .withParameter( LootParameters.BLOCK_ENTITY, tile )
                 .withDynamicDrop( DROP, ( ctx, out ) -> out.accept( getItem( computer ) ) );
             for( ItemStack item : state.getDrops( context ) )
             {
                 spawnAsEntity( world, pos, item );
             }
 
-            state.spawnAdditionalDrops( world, pos, player.getHeldItemMainhand() );
+            state.spawnAdditionalDrops( serverWorld, pos, player.getHeldItemMainhand() );
         }
     }
 
@@ -180,4 +183,10 @@ public abstract class BlockComputerBase<T extends TileComputerBase> extends Bloc
             if( label != null ) computer.setLabel( label );
         }
     }
+
+    @Override
+    public boolean shouldCheckWeakPower( BlockState state, IWorldReader world, BlockPos pos, Direction side )
+    {
+        return false;
+    }
 }

src/main/java/dan200/computercraft/shared/computer/items/ItemComputerBase.java

@@ -43,7 +43,7 @@ public abstract class ItemComputerBase extends BlockItem implements IComputerIte
             if( id >= 0 )
             {
                 list.add( new TranslationTextComponent( "gui.computercraft.tooltip.computer_id", id )
-                    .func_240699_a_( TextFormatting.GRAY ) );
+                    .mergeStyle( TextFormatting.GRAY ) );
             }
         }
     }

src/main/java/dan200/computercraft/shared/media/items/ItemDisk.java

@@ -69,7 +69,7 @@ public class ItemDisk extends Item implements IMedia, IColouredItem
             if( id >= 0 )
             {
                 list.add( new TranslationTextComponent( "gui.computercraft.tooltip.disk_id", id )
-                    .func_240699_a_( TextFormatting.GRAY ) );
+                    .mergeStyle( TextFormatting.GRAY ) );
             }
         }
     }

src/main/java/dan200/computercraft/shared/network/client/PlayRecordClientMessage.java

@@ -14,10 +14,8 @@ import net.minecraft.util.text.StringTextComponent;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 import net.minecraftforge.fml.network.NetworkEvent;
-import net.minecraftforge.registries.ForgeRegistries;
 
 import javax.annotation.Nonnull;
-import java.util.Objects;
 
 /**
  * Starts or stops a record on the client, depending on if {@link #soundEvent} is {@code null}.
@@ -52,7 +50,7 @@ public class PlayRecordClientMessage implements NetworkMessage
         if( buf.readBoolean() )
         {
             name = buf.readString( Short.MAX_VALUE );
-            soundEvent = ForgeRegistries.SOUND_EVENTS.getValue( buf.readResourceLocation() );
+            soundEvent = buf.readRegistryIdSafe( SoundEvent.class );
         }
         else
         {
@@ -73,7 +71,7 @@ public class PlayRecordClientMessage implements NetworkMessage
         {
             buf.writeBoolean( true );
             buf.writeString( name );
-            buf.writeResourceLocation( Objects.requireNonNull( soundEvent.getRegistryName(), "Sound is not registered" ) );
+            buf.writeRegistryId( soundEvent );
         }
     }
 

src/main/java/dan200/computercraft/shared/peripheral/generic/data/ItemData.java

@@ -7,6 +7,8 @@
 package dan200.computercraft.shared.peripheral.generic.data;
 
 import com.google.gson.JsonParseException;
+import dan200.computercraft.ComputerCraft;
+import dan200.computercraft.shared.util.NBTUtil;
 import net.minecraft.enchantment.Enchantment;
 import net.minecraft.enchantment.EnchantmentHelper;
 import net.minecraft.item.EnchantedBookItem;
@@ -22,13 +24,29 @@ import javax.annotation.Nullable;
 import java.util.*;
 import java.util.stream.Collectors;
 
+/**
+ * Data providers for items.
+ *
+ * We guard using {@link ComputerCraft#genericPeripheral} in several places, as advanced functionality should not be
+ * exposed for {@code turtle.getItemDetail} when generic peripehrals are disabled.
+ */
 public class ItemData
 {
     @Nonnull
-    public static <T extends Map<? super String, Object>> T fillBasic( @Nonnull T data, @Nonnull ItemStack stack )
+    public static <T extends Map<? super String, Object>> T fillBasicSafe( @Nonnull T data, @Nonnull ItemStack stack )
     {
         data.put( "name", DataHelpers.getId( stack.getItem() ) );
         data.put( "count", stack.getCount() );
+
+        return data;
+    }
+
+    @Nonnull
+    public static <T extends Map<? super String, Object>> T fillBasic( @Nonnull T data, @Nonnull ItemStack stack )
+    {
+        fillBasicSafe( data, stack );
+        String hash = NBTUtil.getNBTHash( stack.getTag() );
+        if( hash != null ) data.put( "nbt", hash );
         return data;
     }
 
@@ -55,6 +73,8 @@ public class ItemData
 
         data.put( "tags", DataHelpers.getTags( stack.getItem().getTags() ) );
 
+        if( !ComputerCraft.genericPeripheral ) return data;
+
         CompoundNBT tag = stack.getTag();
         if( tag != null && tag.contains( "display", Constants.NBT.TAG_COMPOUND ) )
         {
@@ -144,7 +164,7 @@ public class ItemData
 
         enchants.ensureCapacity( enchants.size() + rawEnchants.size() );
 
-        for( Map.Entry<Enchantment, Integer> entry : EnchantmentHelper.func_226652_a_( rawEnchants ).entrySet() )
+        for( Map.Entry<Enchantment, Integer> entry : EnchantmentHelper.deserializeEnchantments( rawEnchants ).entrySet() )
         {
             Enchantment enchantment = entry.getKey();
             Integer level = entry.getValue();

src/main/java/dan200/computercraft/shared/peripheral/modem/wired/BlockCable.java

@@ -207,9 +207,7 @@ public class BlockCable extends BlockGeneric implements IWaterLoggable
         Direction facing = state.get( MODEM ).getFacing();
         if( facing == null ) return true;
 
-        BlockPos offsetPos = pos.offset( facing );
-        BlockState offsetState = world.getBlockState( offsetPos );
-        return hasSolidSide( offsetState, world, offsetPos, facing.getOpposite() );
+        return hasEnoughSolidSide( world, pos.offset( facing ), facing.getOpposite() );
     }
 
     @Nullable

src/main/java/dan200/computercraft/shared/peripheral/modem/wired/TileWiredModemFull.java

@@ -217,8 +217,8 @@ public class TileWiredModemFull extends TileGeneric
         StringTextComponent base = new StringTextComponent( "" );
         for( int i = 0; i < names.size(); i++ )
         {
-            if( i > 0 ) base.func_240702_b_( ", " );
-            base.func_230529_a_( CommandCopy.createCopyText( names.get( i ) ) );
+            if( i > 0 ) base.appendString( ", " );
+            base.append( CommandCopy.createCopyText( names.get( i ) ) );
         }
 
         player.sendStatusMessage( new TranslationTextComponent( kind, base ), false );

src/main/java/dan200/computercraft/shared/peripheral/modem/wireless/BlockWirelessModem.java

@@ -80,12 +80,10 @@ public class BlockWirelessModem extends BlockGeneric implements IWaterLoggable
 
     @Override
     @Deprecated
-    public boolean isValidPosition( BlockState state, IWorldReader world, BlockPos pos )
+    public boolean isValidPosition( BlockState state, @Nonnull IWorldReader world, BlockPos pos )
     {
         Direction facing = state.get( FACING );
-        BlockPos offsetPos = pos.offset( facing );
-        BlockState offsetState = world.getBlockState( offsetPos );
-        return hasSolidSide( offsetState, world, offsetPos, facing.getOpposite() );
+        return hasEnoughSolidSide( world, pos.offset( facing ), facing.getOpposite() );
     }
 
     @Nullable

src/main/java/dan200/computercraft/shared/peripheral/monitor/ClientMonitor.java

@@ -69,7 +69,7 @@ public final class ClientMonitor extends ClientTerminal
                 GL15.glBufferData( GL31.GL_TEXTURE_BUFFER, 0, GL15.GL_STATIC_DRAW );
                 tboTexture = GlStateManager.genTexture();
                 GL11.glBindTexture( GL31.GL_TEXTURE_BUFFER, tboTexture );
-                GL31.glTexBuffer( GL31.GL_TEXTURE_BUFFER, GL30.GL_R8, tboBuffer );
+                GL31.glTexBuffer( GL31.GL_TEXTURE_BUFFER, GL30.GL_R8UI, tboBuffer );
                 GL11.glBindTexture( GL31.GL_TEXTURE_BUFFER, 0 );
 
                 GlStateManager.bindBuffer( GL31.GL_TEXTURE_BUFFER, 0 );

src/main/java/dan200/computercraft/shared/peripheral/printer/ContainerPrinter.java

@@ -13,7 +13,6 @@ import net.minecraft.inventory.IInventory;
 import net.minecraft.inventory.Inventory;
 import net.minecraft.inventory.container.Container;
 import net.minecraft.inventory.container.Slot;
-import net.minecraft.item.DyeItem;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.IIntArray;
 import net.minecraft.util.IntArray;
@@ -95,7 +94,7 @@ public class ContainerPrinter extends Container
         else
         {
             // Transfer from inventory to printer
-            if( stack.getItem() instanceof DyeItem )
+            if( TilePrinter.isInk( stack ) )
             {
                 if( !mergeItemStack( stack, 0, 1, false ) ) return ItemStack.EMPTY;
             }

src/main/java/dan200/computercraft/shared/peripheral/printer/TilePrinter.java

@@ -300,9 +300,9 @@ public final class TilePrinter extends TileGeneric implements DefaultSidedInvent
         }
     }
 
-    private static boolean isInk( @Nonnull ItemStack stack )
+    static boolean isInk( @Nonnull ItemStack stack )
     {
-        return stack.getItem() instanceof DyeItem;
+        return ColourUtils.getStackColour( stack ) != null;
     }
 
     private static boolean isPaper( @Nonnull ItemStack stack )
@@ -321,7 +321,8 @@ public final class TilePrinter extends TileGeneric implements DefaultSidedInvent
     private boolean inputPage()
     {
         ItemStack inkStack = m_inventory.get( 0 );
-        if( !isInk( inkStack ) ) return false;
+        DyeColor dye = ColourUtils.getStackColour( inkStack );
+        if( dye == null ) return false;
 
         for( int i = 1; i < 7; i++ )
         {
@@ -329,8 +330,7 @@ public final class TilePrinter extends TileGeneric implements DefaultSidedInvent
             if( paperStack.isEmpty() || !isPaper( paperStack ) ) continue;
 
             // Setup the new page
-            DyeColor dye = ColourUtils.getStackColour( inkStack );
-            m_page.setTextColour( dye != null ? dye.getId() : 15 );
+            m_page.setTextColour( dye.getId() );
 
             m_page.clear();
             if( paperStack.getItem() instanceof ItemPrintout )
@@ -403,7 +403,7 @@ public final class TilePrinter extends TileGeneric implements DefaultSidedInvent
                 setInventorySlotContents( i, ItemStack.EMPTY );
 
                 // Spawn the item in the world
-                WorldUtil.dropItemStack( stack, getWorld(), Vector3d.func_237491_b_( getPos() ).add( 0.5, 0.75, 0.5 ) );
+                WorldUtil.dropItemStack( stack, getWorld(), Vector3d.copy( getPos() ).add( 0.5, 0.75, 0.5 ) );
             }
         }
     }

src/main/java/dan200/computercraft/shared/pocket/core/PocketServerComputer.java

@@ -163,7 +163,7 @@ public class PocketServerComputer extends ServerComputer implements IPocketAcces
         if( entity != null )
         {
             setWorld( entity.getEntityWorld() );
-            setPosition( entity.func_233580_cy_() );
+            setPosition( entity.getPosition() );
         }
 
         // If a new entity has picked it up then rebroadcast the terminal to them

src/main/java/dan200/computercraft/shared/pocket/items/ItemPocketComputer.java

@@ -190,7 +190,7 @@ public class ItemPocketComputer extends Item implements IComputerItem, IMedia, I
             if( id >= 0 )
             {
                 list.add( new TranslationTextComponent( "gui.computercraft.tooltip.computer_id", id )
-                    .func_240699_a_( TextFormatting.GRAY ) );
+                    .mergeStyle( TextFormatting.GRAY ) );
             }
         }
     }

src/main/java/dan200/computercraft/shared/proxy/ComputerCraftProxyCommon.java

@@ -33,13 +33,13 @@ import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.registry.Registry;
 import net.minecraftforge.common.capabilities.CapabilityManager;
 import net.minecraftforge.event.LootTableLoadEvent;
+import net.minecraftforge.event.RegisterCommandsEvent;
 import net.minecraftforge.event.TickEvent;
 import net.minecraftforge.event.entity.player.PlayerContainerEvent;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
 import net.minecraftforge.fml.event.server.FMLServerStartedEvent;
-import net.minecraftforge.fml.event.server.FMLServerStartingEvent;
 import net.minecraftforge.fml.event.server.FMLServerStoppedEvent;
 
 import java.util.Arrays;
@@ -71,7 +71,7 @@ public final class ComputerCraftProxyCommon
 
     private static void registerCondition( String name, LootConditionType serializer )
     {
-        Registry.register( Registry.field_239704_ba_, new ResourceLocation( ComputerCraft.MOD_ID, name ), serializer );
+        Registry.register( Registry.LOOT_CONDITION_TYPE, new ResourceLocation( ComputerCraft.MOD_ID, name ), serializer );
     }
 
     private static void registerProviders()
@@ -139,9 +139,9 @@ public final class ComputerCraftProxyCommon
         }
 
         @SubscribeEvent
-        public static void onServerStarting( FMLServerStartingEvent event )
+        public static void onRegisterCommand( RegisterCommandsEvent event )
         {
-            CommandComputerCraft.register( event.getCommandDispatcher() );
+            CommandComputerCraft.register( event.getDispatcher() );
         }
 
         @SubscribeEvent

src/main/java/dan200/computercraft/shared/turtle/apis/TurtleAPI.java

@@ -605,7 +605,7 @@ public class TurtleAPI implements ILuaAPI
 
         Map<String, Object> table = detailed
             ? ItemData.fill( new HashMap<>(), stack )
-            : ItemData.fillBasic( new HashMap<>(), stack );
+            : ItemData.fillBasicSafe( new HashMap<>(), stack );
 
         TurtleActionEvent event = new TurtleInspectItemEvent( turtle, stack, table, detailed );
         if( MinecraftForge.EVENT_BUS.post( event ) ) return new Object[] { false, event.getFailureMessage() };

src/main/java/dan200/computercraft/shared/turtle/core/TurtlePlaceCommand.java

@@ -238,7 +238,7 @@ public class TurtlePlaceCommand implements ITurtleCommand
             cancelResult = hitEntity.applyPlayerInteraction( turtlePlayer, hitPos, Hand.MAIN_HAND );
         }
 
-        if( cancelResult == ActionResultType.SUCCESS )
+        if( cancelResult.isSuccessOrConsume() )
         {
             placed = true;
         }
@@ -246,7 +246,7 @@ public class TurtlePlaceCommand implements ITurtleCommand
         {
             // See EntityPlayer.interactOn
             cancelResult = ForgeHooks.onInteractEntity( turtlePlayer, hitEntity, Hand.MAIN_HAND );
-            if( cancelResult == ActionResultType.SUCCESS )
+            if( cancelResult != null && cancelResult.isSuccessOrConsume() )
             {
                 placed = true;
             }
@@ -353,17 +353,15 @@ public class TurtlePlaceCommand implements ITurtleCommand
         TileEntity existingTile = turtle.getWorld().getTileEntity( position );
 
         // See PlayerInteractionManager.processRightClickBlock
-        // TODO: ^ Check we're still consistent.
         PlayerInteractEvent.RightClickBlock event = ForgeHooks.onRightClickBlock( turtlePlayer, Hand.MAIN_HAND, position, side );
         if( !event.isCanceled() )
         {
-            if( item.onItemUseFirst( stack, context ) == ActionResultType.SUCCESS )
+            if( item.onItemUseFirst( stack, context ).isSuccessOrConsume() )
             {
                 placed = true;
                 turtlePlayer.loadInventory( stackCopy );
             }
-            else if( event.getUseItem() != Event.Result.DENY &&
-                stackCopy.onItemUse( context ) == ActionResultType.SUCCESS )
+            else if( event.getUseItem() != Event.Result.DENY && stackCopy.onItemUse( context ).isSuccessOrConsume() )
             {
                 placed = true;
                 turtlePlayer.loadInventory( stackCopy );
@@ -373,14 +371,14 @@ public class TurtlePlaceCommand implements ITurtleCommand
         if( !placed && (item instanceof BucketItem || item instanceof BoatItem || item instanceof LilyPadItem || item instanceof GlassBottleItem) )
         {
             ActionResultType actionResult = ForgeHooks.onItemRightClick( turtlePlayer, Hand.MAIN_HAND );
-            if( actionResult == ActionResultType.SUCCESS )
+            if( actionResult != null && actionResult.isSuccessOrConsume() )
             {
                 placed = true;
             }
             else if( actionResult == null )
             {
                 ActionResult<ItemStack> result = stackCopy.useItemRightClick( turtle.getWorld(), turtlePlayer, Hand.MAIN_HAND );
-                if( result.getType() == ActionResultType.SUCCESS && !ItemStack.areItemStacksEqual( stack, result.getResult() ) )
+                if( result.getType().isSuccessOrConsume() && !ItemStack.areItemStacksEqual( stack, result.getResult() ) )
                 {
                     placed = true;
                     turtlePlayer.loadInventory( result.getResult() );

src/main/java/dan200/computercraft/shared/turtle/core/TurtlePlayer.java

@@ -25,6 +25,7 @@ import net.minecraft.tileentity.SignTileEntity;
 import net.minecraft.util.Direction;
 import net.minecraft.util.Hand;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.world.server.ServerWorld;
 import net.minecraftforge.common.util.FakePlayer;
 
@@ -54,11 +55,10 @@ public final class TurtlePlayer extends FakePlayer
 
     private void setState( ITurtleAccess turtle )
     {
-        if( openContainer != null )
+        if( openContainer != container )
         {
             ComputerCraft.log.warn( "Turtle has open container ({})", openContainer );
-            openContainer.onContainerClosed( this );
-            openContainer = null;
+            closeContainer();
         }
 
         BlockPos position = turtle.getPosition();
@@ -129,6 +129,12 @@ public final class TurtlePlayer extends FakePlayer
         return Registry.ModEntities.TURTLE_PLAYER.get();
     }
 
+    @Override
+    public Vector3d getPositionVec()
+    {
+        return new Vector3d( getPosX(), getPosY(), getPosZ() );
+    }
+
     @Override
     public float getEyeHeight( @Nonnull Pose pose )
     {

src/main/java/dan200/computercraft/shared/turtle/upgrades/TurtleTool.java

@@ -149,7 +149,7 @@ public class TurtleTool extends AbstractTurtleUpgrade
             boolean attacked = false;
             if( !hitEntity.hitByEntity( turtlePlayer ) )
             {
-                float damage = (float) turtlePlayer.func_233637_b_( Attributes.ATTACK_DAMAGE );
+                float damage = (float) turtlePlayer.getAttributeValue( Attributes.ATTACK_DAMAGE );
                 damage *= getDamageMultiplier();
                 if( damage > 0.0f )
                 {

src/main/java/dan200/computercraft/shared/util/ColourUtils.java

@@ -40,6 +40,8 @@ public final class ColourUtils
 
     public static DyeColor getStackColour( ItemStack stack )
     {
+        if( stack.isEmpty() ) return null;
+
         for( int i = 0; i < DYES.length; i++ )
         {
             ITag<Item> dye = DYES[i];

src/main/java/dan200/computercraft/shared/util/DropConsumer.java

@@ -41,9 +41,7 @@ public final class DropConsumer
         remainingDrops = new ArrayList<>();
         dropEntity = entity;
         dropWorld = entity.world;
-        dropBounds = new AxisAlignedBB( entity.func_233580_cy_() ).grow( 2, 2, 2 );
-
-        entity.captureDrops( new ArrayList<>() );
+        dropBounds = new AxisAlignedBB( entity.getPosition() ).grow( 2, 2, 2 );
     }
 
     public static void set( World world, BlockPos pos, Function<ItemStack, ItemStack> consumer )
@@ -86,7 +84,7 @@ public final class DropConsumer
         }
     }
 
-    @SubscribeEvent
+    @SubscribeEvent( priority = EventPriority.LOW )
     public static void onLivingDrops( LivingDropsEvent drops )
     {
         if( dropEntity == null || drops.getEntity() != dropEntity ) return;

src/main/java/dan200/computercraft/shared/util/FakeNetHandler.java

@@ -65,11 +65,6 @@ public class FakeNetHandler extends ServerPlayNetHandler
     {
     }
 
-    @Override
-    public void handleRecipeBookUpdate( @Nonnull CRecipeInfoPacket packet )
-    {
-    }
-
     @Override
     public void handleSeenAdvancements( @Nonnull CSeenAdvancementsPacket packet )
     {

src/main/java/dan200/computercraft/shared/util/IDAssigner.java

@@ -10,6 +10,7 @@ import com.google.gson.GsonBuilder;
 import com.google.gson.reflect.TypeToken;
 import dan200.computercraft.ComputerCraft;
 import net.minecraft.server.MinecraftServer;
+import net.minecraft.world.storage.FolderName;
 import net.minecraftforge.fml.server.ServerLifecycleHooks;
 
 import java.io.File;
@@ -25,6 +26,7 @@ import java.util.Map;
 
 public final class IDAssigner
 {
+    private static final FolderName FOLDER = new FolderName( ComputerCraft.MOD_ID );
     private static final Gson GSON = new GsonBuilder().setPrettyPrinting().create();
     private static final Type ID_TOKEN = new TypeToken<Map<String, Integer>>()
     {
@@ -40,9 +42,7 @@ public final class IDAssigner
 
     public static File getDir()
     {
-        File root = ServerLifecycleHooks.getCurrentServer().getDataDirectory();
-        // TODO: File worldDirectory = server.getWorld( World.field_234918_g_ ).getSaveHandler().getWorldDirectory();
-        return new File( root, ComputerCraft.MOD_ID );
+        return ServerLifecycleHooks.getCurrentServer().func_240776_a_( FOLDER ).toFile();
     }
 
     private static MinecraftServer getCachedServer()

src/main/java/dan200/computercraft/shared/util/NBTUtil.java

@@ -5,9 +5,19 @@
  */
 package dan200.computercraft.shared.util;
 
+import dan200.computercraft.ComputerCraft;
 import net.minecraft.nbt.*;
 import net.minecraftforge.common.util.Constants;
+import org.apache.commons.codec.binary.Hex;
 
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import java.io.DataOutput;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -159,4 +169,46 @@ public final class NBTUtil
         }
         return objects;
     }
+
+    @Nullable
+    public static String getNBTHash( @Nullable CompoundNBT tag )
+    {
+        if( tag == null ) return null;
+
+        try
+        {
+            MessageDigest digest = MessageDigest.getInstance( "MD5" );
+            DataOutput output = new DataOutputStream( new DigestOutputStream( digest ) );
+            CompressedStreamTools.write( tag, output );
+            byte[] hash = digest.digest();
+            return new String( Hex.encodeHex( hash ) );
+        }
+        catch( NoSuchAlgorithmException | IOException e )
+        {
+            ComputerCraft.log.error( "Cannot hash NBT", e );
+            return null;
+        }
+    }
+
+    private static final class DigestOutputStream extends OutputStream
+    {
+        private final MessageDigest digest;
+
+        DigestOutputStream( MessageDigest digest )
+        {
+            this.digest = digest;
+        }
+
+        @Override
+        public void write( @Nonnull byte[] b, int off, int len )
+        {
+            digest.update( b, off, len );
+        }
+
+        @Override
+        public void write( int b )
+        {
+            digest.update( (byte) b );
+        }
+    }
 }

src/main/java/dan200/computercraft/shared/util/RecordUtil.java

@@ -20,6 +20,6 @@ public final class RecordUtil
     public static void playRecord( SoundEvent record, String recordInfo, World world, BlockPos pos )
     {
         NetworkMessage packet = record != null ? new PlayRecordClientMessage( pos, record, recordInfo ) : new PlayRecordClientMessage( pos );
-        NetworkHandler.sendToAllAround( packet, world, Vector3d.func_237489_a_( pos ), 64 );
+        NetworkHandler.sendToAllAround( packet, world, Vector3d.copyCentered( pos ), 64 );
     }
 }

src/main/java/dan200/computercraft/shared/util/ServiceUtil.java

@@ -0,0 +1,63 @@
+/*
+ * This file is part of ComputerCraft - http://www.computercraft.info
+ * Copyright Daniel Ratcliffe, 2011-2020. Do not distribute without permission.
+ * Send enquiries to dratcliffe@gmail.com
+ */
+
+package dan200.computercraft.shared.util;
+
+import dan200.computercraft.ComputerCraft;
+import dan200.computercraft.api.ComputerCraftAPI;
+import net.minecraftforge.fml.ModList;
+import org.objectweb.asm.Type;
+
+import java.util.List;
+import java.util.ServiceLoader;
+import java.util.stream.Stream;
+import java.util.stream.StreamSupport;
+
+public final class ServiceUtil
+{
+    private static final Type AUTO_SERVICE = Type.getType( "Lcom/google/auto/service/AutoService;" );
+
+    private ServiceUtil()
+    {
+    }
+
+    public static <T> Stream<T> loadServices( Class<T> target )
+    {
+        return StreamSupport.stream( ServiceLoader.load( target, ServiceUtil.class.getClassLoader() ).spliterator(), false );
+    }
+
+    public static <T> Stream<T> loadServicesForge( Class<T> target )
+    {
+        Type type = Type.getType( target );
+        ClassLoader loader = ComputerCraftAPI.class.getClassLoader();
+        return ModList.get().getAllScanData().stream()
+            .flatMap( x -> x.getAnnotations().stream() )
+            .filter( x -> x.getAnnotationType().equals( AUTO_SERVICE ) )
+            .filter( x -> {
+                Object value = x.getAnnotationData().get( "value" );
+                return value instanceof List<?> && ((List<?>) value).contains( type );
+            } )
+            .flatMap( x -> {
+                try
+                {
+                    Class<?> klass = loader.loadClass( x.getClassType().getClassName() );
+                    if( !target.isAssignableFrom( klass ) )
+                    {
+                        ComputerCraft.log.error( "{} is not a subtype of {}", x.getClassType().getClassName(), target.getName() );
+                        return Stream.empty();
+                    }
+
+                    Class<? extends T> casted = klass.asSubclass( target );
+                    return Stream.of( casted.newInstance() );
+                }
+                catch( ReflectiveOperationException e )
+                {
+                    ComputerCraft.log.error( "Cannot load {}", x.getClassType(), e );
+                    return Stream.empty();
+                }
+            } );
+    }
+}

src/main/resources/META-INF/accesstransformer.cfg

@@ -2,3 +2,6 @@
 public net.minecraft.client.renderer.FirstPersonRenderer func_178100_c(F)F # getMapAngleFromPitch
 public net.minecraft.client.renderer.FirstPersonRenderer func_228401_a_(Lcom/mojang/blaze3d/matrix/MatrixStack;Lnet/minecraft/client/renderer/IRenderTypeBuffer;IFFLnet/minecraft/util/HandSide;)V # renderArmFirstPerson
 public net.minecraft.client.renderer.FirstPersonRenderer func_228403_a_(Lcom/mojang/blaze3d/matrix/MatrixStack;Lnet/minecraft/client/renderer/IRenderTypeBuffer;ILnet/minecraft/util/HandSide;)V # renderArm
+# ClientTableFormatter
+public net.minecraft.client.gui.NewChatGui func_146234_a(Lnet/minecraft/util/text/ITextComponent;I)V # printChatMessageWithOptionalDeletion
+public net.minecraft.client.gui.NewChatGui func_146242_c(I)V # deleteChatLine

src/main/resources/META-INF/mods.toml

@@ -1,5 +1,5 @@
 modLoader="javafml"
-loaderVersion="[32,33)"
+loaderVersion="[34,35)"
 
 issueTrackerURL="https://github.com/SquidDev-CC/CC-Tweaked/issues"
 displayURL="https://github.com/SquidDev-CC/CC-Tweaked"
@@ -7,6 +7,7 @@ logoFile="pack.png"
 
 credits="Created by Daniel Ratcliffe (@DanTwoHundred)"
 authors="Daniel Ratcliffe, Aaron Mills, SquidDev"
+license="ComputerCraft Public License (https://raw.githubusercontent.com/dan200/ComputerCraft/master/LICENSE)"
 
 [[mods]]
 modId="computercraft"
@@ -19,6 +20,6 @@ CC: Tweaked is a fork of ComputerCraft, adding programmable computers, turtles a
 [[dependencies.computercraft]]
     modId="forge"
     mandatory=true
-    versionRange="[32.0.23,33)"
+    versionRange="[34.0.1,35)"
     ordering="NONE"
     side="BOTH"

src/main/resources/assets/computercraft/lang/sv_se.json

@@ -1,14 +1,14 @@
 {
     "block.computercraft.computer_normal": "Dator",
     "block.computercraft.computer_advanced": "Avancerad Dator",
-    "block.computercraft.computer_command": "Kommando Dator",
+    "block.computercraft.computer_command": "Kommandodator",
     "block.computercraft.disk_drive": "Diskettläsare",
     "block.computercraft.printer": "Skrivare",
     "block.computercraft.speaker": "Högtalare",
     "block.computercraft.monitor_normal": "Skärm",
     "block.computercraft.monitor_advanced": "Avancerad Skärm",
     "block.computercraft.wireless_modem_normal": "Trådlöst Modem",
-    "block.computercraft.wireless_modem_advanced": "Ender Modem",
+    "block.computercraft.wireless_modem_advanced": "Endermodem",
     "block.computercraft.wired_modem": "Trådat Modem",
     "block.computercraft.cable": "Nätverkskabel",
     "block.computercraft.wired_modem_full": "Trådat Modem",
@@ -38,5 +38,76 @@
     "upgrade.computercraft.speaker.adjective": "Högljudd",
     "chat.computercraft.wired_modem.peripheral_connected": "Kringutrustning \"%s\" är kopplad till nätverket",
     "chat.computercraft.wired_modem.peripheral_disconnected": "Kringutrustning \"%s\" är frånkopplad från nätverket",
-    "gui.computercraft.tooltip.copy": "Kopiera till urklipp"
+    "gui.computercraft.tooltip.copy": "Kopiera till urklipp",
+    "gui.computercraft.tooltip.disk_id": "Diskett-ID: %s",
+    "gui.computercraft.tooltip.computer_id": "Dator-ID: %s",
+    "tracking_field.computercraft.coroutines_dead.name": "Coroutines borttagna",
+    "tracking_field.computercraft.coroutines_created.name": "Coroutines skapade",
+    "tracking_field.computercraft.websocket_outgoing.name": "Websocket utgående",
+    "tracking_field.computercraft.websocket_incoming.name": "Websocket ingående",
+    "tracking_field.computercraft.http_download.name": "HTTP-nedladdning",
+    "tracking_field.computercraft.http_upload.name": "HTTP-uppladdning",
+    "tracking_field.computercraft.http.name": "HTTP-förfrågningar",
+    "tracking_field.computercraft.turtle.name": "Turtle-operationer",
+    "tracking_field.computercraft.fs.name": "Filsystemoperationer",
+    "tracking_field.computercraft.peripheral.name": "Samtal till kringutrustning",
+    "tracking_field.computercraft.server_time.name": "Serveraktivitetstid",
+    "tracking_field.computercraft.server_count.name": "Antal serveruppgifter",
+    "tracking_field.computercraft.max.name": "Max tid",
+    "tracking_field.computercraft.average.name": "Genomsnittlig tid",
+    "tracking_field.computercraft.total.name": "Total tid",
+    "tracking_field.computercraft.tasks.name": "Uppgifter",
+    "argument.computercraft.argument_expected": "Argument förväntas",
+    "argument.computercraft.tracking_field.no_field": "Okänt fält '%s'",
+    "argument.computercraft.computer.many_matching": "Flera datorer matchar '%s' (%s träffar)",
+    "argument.computercraft.computer.no_matching": "Inga datorer matchar '%s'",
+    "commands.computercraft.generic.additional_rows": "%d ytterligare rader…",
+    "commands.computercraft.generic.exception": "Ohanterat felfall (%s)",
+    "commands.computercraft.generic.no": "N",
+    "commands.computercraft.generic.yes": "J",
+    "commands.computercraft.generic.position": "%s, %s, %s",
+    "commands.computercraft.generic.no_position": "<no pos>",
+    "commands.computercraft.queue.desc": "Skicka ett computer_command event till en kommandodator, skicka vidare ytterligare argument. Detta är mestadels utformat för kartmarkörer som fungerar som en mer datorvänlig version av /trigger. Alla spelare kan köra kommandot, vilket sannolikt skulle göras genom en textkomponents klick-event.",
+    "commands.computercraft.queue.synopsis": "Skicka ett computer_command event till en kommandodator",
+    "commands.computercraft.reload.done": "Konfiguration omladdad",
+    "commands.computercraft.reload.desc": "Ladda om ComputerCrafts konfigurationsfil",
+    "commands.computercraft.reload.synopsis": "Ladda om ComputerCrafts konfigurationsfil",
+    "commands.computercraft.track.dump.computer": "Dator",
+    "commands.computercraft.track.dump.no_timings": "Inga tidtagningar tillgängliga",
+    "commands.computercraft.track.dump.desc": "Dumpa de senaste resultaten av datorspårning.",
+    "commands.computercraft.track.dump.synopsis": "Dumpa de senaste spårningsresultaten",
+    "commands.computercraft.track.stop.not_enabled": "Spårar för tillfället inga datorer",
+    "commands.computercraft.track.stop.action": "Klicka för att stoppa spårning",
+    "commands.computercraft.track.stop.desc": "Stoppa spårning av alla datorers körtider och eventräkningar",
+    "commands.computercraft.track.stop.synopsis": "Stoppa spårning för alla datorer",
+    "commands.computercraft.track.start.stop": "Kör %s för att stoppa spårning och visa resultaten",
+    "commands.computercraft.track.start.desc": "Börja spåra alla dators körtider och eventräkningar. Detta kommer återställa resultaten från tidigare körningar.",
+    "commands.computercraft.track.start.synopsis": "Starta spårning för alla datorer",
+    "commands.computercraft.track.desc": "Spåra hur länge datorer exekverar, och även hur många event de hanterar. Detta presenterar information på liknande sätt som /forge track och kan vara användbart för att undersöka lagg.",
+    "commands.computercraft.track.synopsis": "Spåra körningstider för denna dator.",
+    "commands.computercraft.view.not_player": "Kan inte öppna terminalen för en ickespelare",
+    "commands.computercraft.view.action": "Titta på denna dator",
+    "commands.computercraft.view.desc": "Öppna datorns terminal för att möjligöra fjärrstyrning. Detta ger inte tillgång till turtlens inventory. Du kan ange en dators instans-id (t.ex. 123) eller dator-id (t.ex. #123).",
+    "commands.computercraft.view.synopsis": "Titta på datorns terminal.",
+    "commands.computercraft.tp.not_there": "Kan inte hitta datorn i världen",
+    "commands.computercraft.tp.not_player": "Kan inte öppna terminalen för en ickespelare",
+    "commands.computercraft.tp.action": "Teleportera till den här datorn",
+    "commands.computercraft.tp.desc": "Teleportera till datorns position. Du kan ange en dators instans-id (t.ex. 123), dator-id (t.ex. #123) eller etikett (t.ex. \"@Min dator\").",
+    "commands.computercraft.tp.synopsis": "Teleportera till en specifik dator.",
+    "commands.computercraft.turn_on.done": "Startade %s/%s datorer",
+    "commands.computercraft.turn_on.desc": "Starta de listade datorerna eller alla om ingen anges. Du kan ange en dators instans-id (t.ex. 123), dator-id (t.ex. #123) eller etikett (t.ex. \"@Min dator\").",
+    "commands.computercraft.turn_on.synopsis": "Starta på datorer på distans.",
+    "commands.computercraft.shutdown.done": "Stängde av %s/%s datorer",
+    "commands.computercraft.dump.desc": "Visa status för alla datorer eller specifik information för en dator. Du kan ange en dators instans-id (t.ex. 123), dator-id (t.ex. #123) eller etikett (t.ex. \"@Min dator\").",
+    "commands.computercraft.shutdown.desc": "Stäng av de listade datorerna eller alla om ingen anges. Du kan ange en dators instans-id (t.ex. 123), dator-id (t.ex. #123) eller etikett (t.ex. \"@Min dator\").",
+    "commands.computercraft.shutdown.synopsis": "Stäng av datorer på distans.",
+    "commands.computercraft.dump.action": "Visa mer information om den här datorn",
+    "commands.computercraft.dump.synopsis": "Visa status för datorer.",
+    "commands.computercraft.help.no_command": "Inget sådant kommando '%s'",
+    "commands.computercraft.help.no_children": "%s har inget underkommando",
+    "commands.computercraft.help.desc": "Visa detta hjälpmeddelande",
+    "commands.computercraft.help.synopsis": "Tillhandahåll hjälp för ett specifikt kommando",
+    "commands.computercraft.desc": "/computercraft kommandot tillhandahåller olika debugging- och administrationsverktyg för att kontrollera och interagera med datorer.",
+    "commands.computercraft.synopsis": "Olika kommandon för att kontrollera datorer.",
+    "itemGroup.computercraft": "ComputerCraft"
 }

src/main/resources/assets/computercraft/lang/vi.json

@@ -0,0 +1,48 @@
+{
+    "gui.computercraft.tooltip.disk_id": "ID của đĩa: %s",
+    "upgrade.computercraft.speaker.adjective": "Ồn ào",
+    "upgrade.computercraft.wireless_modem_advanced.adjective": "Ender",
+    "upgrade.computercraft.wireless_modem_normal.adjective": "Không dây",
+    "upgrade.minecraft.crafting_table.adjective": "Chế tạo",
+    "upgrade.minecraft.diamond_hoe.adjective": "Trồng trọt",
+    "upgrade.minecraft.diamond_axe.adjective": "Đốn",
+    "upgrade.minecraft.diamond_pickaxe.adjective": "Khai thác",
+    "upgrade.minecraft.diamond_shovel.adjective": "Đào",
+    "item.computercraft.pocket_computer_advanced.upgraded": "Máy tính bỏ túi tiên tiến %s",
+    "item.computercraft.pocket_computer_advanced": "Máy tính bỏ túi tiên tiến",
+    "item.computercraft.pocket_computer_normal.upgraded": "Máy tính bỏ túi %s",
+    "item.computercraft.pocket_computer_normal": "Máy tính bỏ túi",
+    "item.computercraft.printed_book": "Sách in",
+    "item.computercraft.printed_page": "Trang in",
+    "item.computercraft.treasure_disk": "Đĩa mềm",
+    "item.computercraft.disk": "Đĩa mềm",
+    "block.computercraft.turtle_advanced.upgraded_twice": "Rùa tiên tiến %s %s",
+    "block.computercraft.turtle_advanced.upgraded": "Rùa tiên tiến %s",
+    "block.computercraft.turtle_advanced": "Rùa tiên tiến",
+    "block.computercraft.turtle_normal.upgraded_twice": "Rùa %s %s",
+    "block.computercraft.turtle_normal.upgraded": "Rùa %s",
+    "block.computercraft.turtle_normal": "Rùa",
+    "block.computercraft.wired_modem_full": "Modem có dây",
+    "block.computercraft.cable": "Dây cáp mạng",
+    "block.computercraft.wired_modem": "Modem có dây",
+    "block.computercraft.wireless_modem_advanced": "Modem Ender",
+    "block.computercraft.wireless_modem_normal": "Modem không dây",
+    "block.computercraft.monitor_advanced": "Màn hình tiên tiếng",
+    "block.computercraft.monitor_normal": "Màn hình",
+    "block.computercraft.speaker": "Loa",
+    "block.computercraft.printer": "Máy in",
+    "block.computercraft.disk_drive": "Ỗ đĩa",
+    "block.computercraft.computer_command": "Máy tính điều khiển",
+    "block.computercraft.computer_normal": "Máy tính",
+    "itemGroup.computercraft": "ComputerCraft",
+    "block.computercraft.computer_advanced": "Máy tính tiên tiến",
+    "tracking_field.computercraft.websocket_incoming.name": "Websocket đến",
+    "tracking_field.computercraft.websocket_outgoing.name": "Websocket đi",
+    "gui.computercraft.tooltip.computer_id": "ID của máy tính: %s",
+    "tracking_field.computercraft.coroutines_dead.name": "Coroutine bỏ đi",
+    "tracking_field.computercraft.coroutines_created.name": "Coroutine đã tạo",
+    "tracking_field.computercraft.http_download.name": "HTTP tải xuống",
+    "tracking_field.computercraft.http_upload.name": "HTTP tải lên",
+    "tracking_field.computercraft.http.name": "Yêu cầu HTTP",
+    "gui.computercraft.tooltip.copy": "Sao chép vào clipboard"
+}

src/main/resources/assets/computercraft/shaders/monitor.frag

@@ -6,7 +6,7 @@
 uniform sampler2D u_font;
 uniform int u_width;
 uniform int u_height;
-uniform samplerBuffer u_tbo;
+uniform usamplerBuffer u_tbo;
 uniform vec3 u_palette[16];
 
 in vec2 f_pos;
@@ -30,9 +30,9 @@ void main() {
     vec2 outside = step(vec2(0.0, 0.0), vec2(cell)) * step(vec2(cell), vec2(float(u_width) - 1.0, float(u_height) - 1.0));
     float mult = outside.x * outside.y;
 
-    int character = int(texelFetch(u_tbo, index).r * 255.0);
-    int fg = int(texelFetch(u_tbo, index + 1).r * 255.0);
-    int bg = int(texelFetch(u_tbo, index + 2).r * 255.0);
+    int character = int(texelFetch(u_tbo, index).r);
+    int fg = int(texelFetch(u_tbo, index + 1).r);
+    int bg = int(texelFetch(u_tbo, index + 2).r);
 
     vec2 pos = (term_pos - corner) * vec2(FONT_WIDTH, FONT_HEIGHT);
     vec4 img = texture(u_font, (texture_corner(character) + pos) / 256.0);

src/main/resources/data/computercraft/lua/rom/apis/colors.lua

@@ -1,15 +1,137 @@
---- The Colors API allows you to manipulate sets of colors.
---
--- This is useful in conjunction with Bundled Cables from the RedPower mod,
--- RedNet Cables from the MineFactory Reloaded mod, and colors on Advanced
--- Computers and Advanced Monitors.
---
--- For the non-American English version just replace @{colors} with @{colours}
--- and it will use the other API, colours which is exactly the same, except in
--- British English (e.g. @{colors.gray} is spelt @{colours.grey}).
---
--- @see colours
--- @module colors
+--[[- The Colors API allows you to manipulate sets of colors.
+
+This is useful in conjunction with Bundled Cables from the RedPower mod, RedNet
+Cables from the MineFactory Reloaded mod, and colors on Advanced Computers and
+Advanced Monitors.
+
+For the non-American English version just replace @{colors} with @{colours} and
+it will use the other API, colours which is exactly the same, except in British
+English (e.g. @{colors.gray} is spelt @{colours.grey}).
+
+On basic terminals (such as the Computer and Monitor), all the colors are
+converted to grayscale. This means you can still use all 16 colors on the
+screen, but they will appear as the nearest tint of gray. You can check if a
+terminal supports color by using the function @{term.isColor}.
+
+Grayscale colors are calculated by taking the average of the three components,
+i.e. `(red + green + blue) / 3`.
+
+<table class="pretty-table">
+<thead>
+    <tr><th colspan="8" align="center">Default Colors</th></tr>
+    <tr>
+    <th rowspan="2" align="center">Color</th>
+    <th colspan="3" align="center">Value</th>
+    <th colspan="4" align="center">Default Palette Color</th>
+    </tr>
+    <tr>
+    <th>Dec</th><th>Hex</th><th>Paint/Blit</th>
+    <th>Preview</th><th>Hex</th><th>RGB</th><th>Grayscale</th>
+    </tr>
+</thead>
+<tbody>
+    <tr>
+    <td><code>colors.white</code></td>
+    <td align="right">1</td><td align="right">0x1</td><td align="right">0</td>
+    <td style="background:#F0F0F0"></td><td>#F0F0F0</td><td>240, 240, 240</td>
+    <td style="background:#F0F0F0"></td>
+    </tr>
+    <tr>
+    <td><code>colors.orange</code></td>
+    <td align="right">2</td><td align="right">0x2</td><td align="right">1</td>
+    <td style="background:#F2B233"></td><td>#F2B233</td><td>242, 178, 51</td>
+    <td style="background:#9D9D9D"></td>
+    </tr>
+    <tr>
+    <td><code>colors.magenta</code></td>
+    <td align="right">4</td><td align="right">0x4</td><td align="right">2</td>
+    <td style="background:#E57FD8"></td><td>#E57FD8</td><td>229, 127, 216</td>
+    <td style="background:#BEBEBE"></td>
+    </tr>
+    <tr>
+    <td><code>colors.lightBlue</code></td>
+    <td align="right">8</td><td align="right">0x8</td><td align="right">3</td>
+    <td style="background:#99B2F2"></td><td>#99B2F2</td><td>153, 178, 242</td>
+    <td style="background:#BFBFBF"></td>
+    </tr>
+    <tr>
+    <td><code>colors.yellow</code></td>
+    <td align="right">16</td><td align="right">0x10</td><td align="right">4</td>
+    <td style="background:#DEDE6C"></td><td>#DEDE6C</td><td>222, 222, 108</td>
+    <td style="background:#B8B8B8"></td>
+    </tr>
+    <tr>
+    <td><code>colors.lime</code></td>
+    <td align="right">32</td><td align="right">0x20</td><td align="right">5</td>
+    <td style="background:#7FCC19"></td><td>#7FCC19</td><td>127, 204, 25</td>
+    <td style="background:#767676"></td>
+    </tr>
+    <tr>
+    <td><code>colors.pink</code></td>
+    <td align="right">64</td><td align="right">0x40</td><td align="right">6</td>
+    <td style="background:#F2B2CC"></td><td>#F2B2CC</td><td>242, 178, 204</td>
+    <td style="background:#D0D0D0"></td>
+    </tr>
+    <tr>
+    <td><code>colors.gray</code></td>
+    <td align="right">128</td><td align="right">0x80</td><td align="right">7</td>
+    <td style="background:#4C4C4C"></td><td>#4C4C4C</td><td>76, 76, 76</td>
+    <td style="background:#4C4C4C"></td>
+    </tr>
+    <tr>
+    <td><code>colors.lightGray</code></td>
+    <td align="right">256</td><td align="right">0x100</td><td align="right">8</td>
+    <td style="background:#999999"></td><td>#999999</td><td>153, 153, 153</td>
+    <td style="background:#999999"></td>
+    </tr>
+    <tr>
+    <td><code>colors.cyan</code></td>
+    <td align="right">512</td><td align="right">0x200</td><td align="right">9</td>
+    <td style="background:#4C99B2"></td><td>#4C99B2</td><td>76, 153, 178</td>
+    <td style="background:#878787"></td>
+    </tr>
+    <tr>
+    <td><code>colors.purple</code></td>
+    <td align="right">1024</td><td align="right">0x400</td><td align="right">a</td>
+    <td style="background:#B266E5"></td><td>#B266E5</td><td>178, 102, 229</td>
+    <td style="background:#A9A9A9"></td>
+    </tr>
+    <tr>
+    <td><code>colors.blue</code></td>
+    <td align="right">2048</td><td align="right">0x800</td><td align="right">b</td>
+    <td style="background:#3366CC"></td><td>#3366CC</td><td>51, 102, 204</td>
+    <td style="background:#777777"></td>
+    </tr>
+    <tr>
+    <td><code>colors.brown</code></td>
+    <td align="right">4096</td><td align="right">0x1000</td><td align="right">c</td>
+    <td style="background:#7F664C"></td><td>#7F664C</td><td>127, 102, 76</td>
+    <td style="background:#656565"></td>
+    </tr>
+    <tr>
+    <td><code>colors.green</code></td>
+    <td align="right">8192</td><td align="right">0x2000</td><td align="right">d</td>
+    <td style="background:#57A64E"></td><td>#57A64E</td><td>87, 166, 78</td>
+    <td style="background:#6E6E6E"></td>
+    </tr>
+    <tr>
+    <td><code>colors.red</code></td>
+    <td align="right">16384</td><td align="right">0x4000</td><td align="right">e</td>
+    <td style="background:#CC4C4C"></td><td>#CC4C4C</td><td>204, 76, 76</td>
+    <td style="background:#767676"></td>
+    </tr>
+    <tr>
+    <td><code>colors.black</code></td>
+    <td align="right">32768</td><td align="right">0x8000</td><td align="right">f</td>
+    <td style="background:#111111"></td><td>#111111</td><td>17, 17, 17</td>
+    <td style="background:#111111"></td>
+    </tr>
+</tbody>
+</table>
+
+@see colours
+@module colors
+]]
 
 local expect = dofile("rom/modules/main/cc/expect.lua").expect
 
@@ -37,7 +159,7 @@ yellow = 0x10
 -- terminal colour of #7FCC19.
 lime = 0x20
 
---- Pink. Written as `6` in paint files and @{term.blit}, has a default
+--- Pink: Written as `6` in paint files and @{term.blit}, has a default
 -- terminal colour of #F2B2CC.
 pink = 0x40
 
@@ -74,10 +196,11 @@ green = 0x2000
 red = 0x4000
 
 --- Black: Written as `f` in paint files and @{term.blit}, has a default
--- terminal colour of #191919.
+-- terminal colour of #111111.
 black = 0x8000
 
---- Combines a set of colors (or sets of colors) into a larger set.
+--- Combines a set of colors (or sets of colors) into a larger set. Useful for
+-- Bundled Cables.
 --
 -- @tparam number ... The colors to combine.
 -- @treturn number The union of the color sets given in `...`
@@ -96,7 +219,8 @@ function combine(...)
     return r
 end
 
---- Removes one or more colors (or sets of colors) from an initial set.
+--- Removes one or more colors (or sets of colors) from an initial set. Useful
+-- for Bundled Cables.
 --
 -- Each parameter beyond the first may be a single color or may be a set of
 -- colors (in the latter case, all colors in the set are removed from the
@@ -121,7 +245,8 @@ function subtract(colors, ...)
     return r
 end
 
---- Tests whether `color` is contained within `colors`.
+--- Tests whether `color` is contained within `colors`. Useful for Bundled
+-- Cables.
 --
 -- @tparam number colors A color, or color set
 -- @tparam number color A color or set of colors that `colors` should contain.
@@ -181,9 +306,6 @@ end
 --- Either calls @{colors.packRGB} or @{colors.unpackRGB}, depending on how many
 -- arguments it receives.
 --
--- **Note:** This function is deprecated, and it is recommended you use the
--- specific pack/unpack function directly.
---
 -- @tparam[1] number r The red channel, as an argument to @{colors.packRGB}.
 -- @tparam[1] number g The green channel, as an argument to @{colors.packRGB}.
 -- @tparam[1] number b The blue channel, as an argument to @{colors.packRGB}.
@@ -192,6 +314,7 @@ end
 -- @treturn[2] number The red channel, as returned by @{colors.unpackRGB}
 -- @treturn[2] number The green channel, as returned by @{colors.unpackRGB}
 -- @treturn[2] number The blue channel, as returned by @{colors.unpackRGB}
+-- @deprecated Use @{packRGB} or @{unpackRGB} directly.
 -- @usage
 -- ```lua
 -- colors.rgb(0xb23399)

src/main/resources/data/computercraft/lua/rom/apis/io.lua

@@ -289,7 +289,7 @@ end
 -- The `mode` string can be any of the following:
 --  - **"r"**: Read mode
 --  - **"w"**: Write mode
---  - **"w"**: Append mode
+--  - **"a"**: Append mode
 --
 -- The mode may also have a `b` at the end, which opens the file in "binary
 -- mode". This allows you to read binary files, as well as seek within a file.

src/main/resources/data/computercraft/lua/rom/apis/textutils.lua

@@ -77,7 +77,7 @@ function formatTime(nTime, bTwentyFourHour)
     local nHour = math.floor(nTime)
     local nMinute = math.floor((nTime - nHour) * 60)
     if sTOD then
-        return string.format("%d:%02d %s", nHour, nMinute, sTOD)
+        return string.format("%d:%02d %s", nHour == 0 and 12 or nHour, nMinute, sTOD)
     else
         return string.format("%d:%02d", nHour, nMinute)
     end
@@ -335,6 +335,31 @@ empty_json_array = mk_tbl("[]", "empty_json_array")
 -- @see textutils.unserialiseJSON
 json_null = mk_tbl("null", "json_null")
 
+local serializeJSONString
+do
+    local function hexify(c)
+        return ("\\u00%02X"):format(c:byte())
+    end
+
+    local map = {
+        ["\""] = "\\\"",
+        ["\\"] = "\\\\",
+        ["\b"] = "\\b",
+        ["\f"] = "\\f",
+        ["\n"] = "\\n",
+        ["\r"] = "\\r",
+        ["\t"] = "\\t",
+    }
+    for i = 0, 0x1f do
+        local c = string.char(i)
+        if map[c] == nil then map[c] = hexify(c) end
+    end
+
+    serializeJSONString = function(s)
+        return ('"%s"'):format(s:gsub("[\0-\x1f\"\\]", map):gsub("[\x7f-\xff]", hexify))
+    end
+end
+
 local function serializeJSONImpl(t, tTracking, bNBTStyle)
     local sType = type(t)
     if t == empty_json_array then return "[]"
@@ -361,7 +386,7 @@ local function serializeJSONImpl(t, tTracking, bNBTStyle)
                     if bNBTStyle then
                         sEntry = tostring(k) .. ":" .. serializeJSONImpl(v, tTracking, bNBTStyle)
                     else
-                        sEntry = string.format("%q", k) .. ":" .. serializeJSONImpl(v, tTracking, bNBTStyle)
+                        sEntry = serializeJSONString(k) .. ":" .. serializeJSONImpl(v, tTracking, bNBTStyle)
                     end
                     if nObjectSize == 0 then
                         sObjectResult = sObjectResult .. sEntry
@@ -390,7 +415,7 @@ local function serializeJSONImpl(t, tTracking, bNBTStyle)
         end
 
     elseif sType == "string" then
-        return string.format("%q", t)
+        return serializeJSONString(t)
 
     elseif sType == "number" or sType == "boolean" then
         return tostring(t)
@@ -407,7 +432,7 @@ do
 
     --- Skip any whitespace
     local function skip(str, pos)
-        local _, last = find(str, "^[ \n\r\v]+", pos)
+        local _, last = find(str, "^[ \n\r\t]+", pos)
         if last then return last + 1 else return pos end
     end
 
@@ -447,7 +472,7 @@ do
                     buf[n], n, pos = utf8.char(tonumber(num_str, 16)), n + 1, pos + 6
                 else
                     local unesc = escapes[c]
-                    if not unesc then error_at(pos + 1, "Unknown escape character %q.", unesc) end
+                    if not unesc then error_at(pos + 1, "Unknown escape character %q.", c) end
                     buf[n], n, pos = unesc, n + 1, pos + 2
                 end
             elseif c >= '\x20' then

src/main/resources/data/computercraft/lua/rom/apis/window.lua

@@ -440,7 +440,7 @@ function create(parent, nX, nY, nWidth, nHeight, bStartVisible)
     end
 
     --- Get the buffered contents of a line in this window.
-    ---
+    --
     -- @tparam number y The y position of the line to get.
     -- @treturn string The textual content of this line.
     -- @treturn string The text colours of this line, suitable for use with @{term.blit}.

src/main/resources/data/computercraft/lua/rom/help/changelog.txt

@@ -1,3 +1,62 @@
+# New features in CC: Tweaked 1.93.1
+
+* Various documentation improvements (Lemmmy).
+* Fix TBO monitor renderer on some older graphics cards (Lemmmy).
+
+# New features in CC: Tweaked 1.93.0
+
+* Update Swedish translations (Granddave).
+* Printers use item tags to check dyes.
+* HTTP rules may now be targetted for a specific port.
+* Don't propagate adjacent redstone signals through computers.
+
+And several bug fixes:
+* Fix NPEs when turtles interact with containers.
+
+# New features in CC: Tweaked 1.92.0
+
+* Bump Cobalt version:
+  * Add support for the __pairs metamethod.
+  * string.format now uses the __tostring metamethod.
+* Add date-specific MOTDs (MCJack123).
+
+And several bug fixes:
+* Correctly handle tabs within textutils.unserailizeJSON.
+* Fix sheep not dropping items when sheared by turtles.
+
+# New features in CC: Tweaked 1.91.1
+
+* Fix crash when turtles interact with an entity.
+
+# New features in CC: Tweaked 1.91.0
+
+* [Generic peripherals] Expose NBT hashes of items to inventory methods.
+* Bump Cobalt version
+  * Optimise handling of string concatenation.
+  * Add string.{pack,unpack,packsize} (MCJack123)
+* Update to 1.16.2
+
+And several bug fixes:
+* Escape non-ASCII characters in JSON strings (neumond)
+* Make field names in fs.attributes more consistent (abby)
+* Fix textutils.formatTime correctly handle 12 AM (R93950X)
+* Fix turtles placing buckets multiple times.
+
+# New features in CC: Tweaked 1.90.3
+
+* Fix the selected slot indicator missing from the turtle GUI.
+* Ensure we load/save computer data from the world directory, rather than a global one.
+
+# New features in CC: Tweaked 1.90.2
+
+* Fix generic peripherals not being registered outside a dev environment.
+* Fix `turtle.attack()` failing.
+* Correctly set styles for the output of `/computercraft` commands.
+
+# New features in CC: Tweaked 1.90.1
+
+* Update to Forge 32.0.69
+
 # New features in CC: Tweaked 1.90.0
 
 * Add cc.image.nft module, for working with nft files. (JakobDev)

src/main/resources/data/computercraft/lua/rom/help/whatsnew.txt

@@ -1,18 +1,6 @@
-New features in CC: Tweaked 1.90.0
+New features in CC: Tweaked 1.93.1
 
-* Add cc.image.nft module, for working with nft files. (JakobDev)
-* [experimental] Provide a generic peripheral for any tile entity without an existing one. We currently provide methods for working with inventories, fluid tanks and energy storage. This is disabled by default, and must be turned on in the config.
-* Add configuration to control the sizes of monitors and terminals.
-* Add configuration to control maximum render distance of monitors.
-* Allow getting "detailed" information about an item, using `turtle.getItemDetail(slot, true)`. This will contain the same information that the generic peripheral supplies.
-
-And several bug fixes:
-* Add back config for allowing interacting with command computers.
-* Fix write method missing from printers.
-* Fix dupe bug when killing an entity with a turtle.
-* Correctly supply port in the Host header (neumond).
-* Fix `turtle.craft` failing when missing an argument.
-* Fix deadlock when mistakenly "watching" an unloaded chunk.
-* Fix full path of files being leaked in some errors.
+* Various documentation improvements (Lemmmy).
+* Fix TBO monitor renderer on some older graphics cards (Lemmmy).
 
 Type "help changelog" to see the full version history.

src/main/resources/data/computercraft/lua/rom/modules/main/cc/pretty.lua

@@ -13,7 +13,7 @@
 -- @module cc.pretty
 -- @usage Print a table to the terminal
 --     local pretty = require "cc.pretty"
---     pretty.write(pretty.dump({ 1, 2, 3 }))
+--     pretty.write(pretty.pretty({ 1, 2, 3 }))
 --
 -- @usage Build a custom document and display it
 --     local pretty = require "cc.pretty"

src/main/resources/data/computercraft/lua/rom/programs/motd.lua

@@ -1,15 +1,24 @@
-local tMotd = {}
+local date = os.date("*t")
+if date.month == 1 and date.day == 1 then
+    print("Happy new year!")
+elseif date.month == 12 and date.day == 24 then
+    print("Merry X-mas!")
+elseif date.month == 10 and date.day == 31 then
+    print("OOoooOOOoooo! Spooky!")
+else
+    local tMotd = {}
 
-for sPath in string.gmatch(settings.get("motd.path"), "[^:]+") do
-    if fs.exists(sPath) then
-        for sLine in io.lines(sPath) do
-            table.insert(tMotd, sLine)
+    for sPath in string.gmatch(settings.get("motd.path"), "[^:]+") do
+        if fs.exists(sPath) then
+            for sLine in io.lines(sPath) do
+                table.insert(tMotd, sLine)
+            end
         end
     end
-end
 
-if #tMotd == 0 then
-    print("missingno")
-else
-    print(tMotd[math.random(1, #tMotd)])
+    if #tMotd == 0 then
+        print("missingno")
+    else
+        print(tMotd[math.random(1, #tMotd)])
+    end
 end

src/main/resources/pack.mcmeta

@@ -1,6 +1,6 @@
 {
     "pack": {
-        "pack_format": 4,
+        "pack_format": 6,
         "description": "CC: Tweaked"
     }
 }

src/test/java/dan200/computercraft/core/apis/http/options/AddressRuleTest.java

@@ -0,0 +1,34 @@
+/*
+ * This file is part of ComputerCraft - http://www.computercraft.info
+ * Copyright Daniel Ratcliffe, 2011-2020. Do not distribute without permission.
+ * Send enquiries to dratcliffe@gmail.com
+ */
+
+package dan200.computercraft.core.apis.http.options;
+
+import org.junit.jupiter.api.Test;
+
+import java.net.InetSocketAddress;
+import java.util.Collections;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class AddressRuleTest
+{
+    @Test
+    public void matchesPort()
+    {
+        Iterable<AddressRule> rules = Collections.singletonList( AddressRule.parse(
+            "127.0.0.1", 8080,
+            new PartialOptions( Action.ALLOW, null, null, null, null )
+        ) );
+
+        assertEquals( apply( rules, "localhost", 8080 ).action, Action.ALLOW );
+        assertEquals( apply( rules, "localhost", 8081 ).action, Action.DENY );
+    }
+
+    private Options apply( Iterable<AddressRule> rules, String host, int port )
+    {
+        return AddressRule.apply( rules, host, new InetSocketAddress( host, port ) );
+    }
+}

src/test/resources/test-rom/data/json-parsing/y_tab_whitespace.json

@@ -0,0 +1 @@
+[	]

src/test/resources/test-rom/spec/apis/fs_spec.lua

@@ -208,9 +208,11 @@ describe("The fs library", function()
                 fail(("Expected created time (%d) to be within 1000ms of now (%d"):format(attributes.created, now))
             end
 
-            if attributes.modification - now >= 1000 then
-                fail(("Expected modification time (%d) to be within 1000ms of now (%d"):format(attributes.modification, now))
+            if attributes.modified - now >= 1000 then
+                fail(("Expected modified time (%d) to be within 1000ms of now (%d"):format(attributes.modified, now))
             end
+
+            expect(attributes.modification):eq(attributes.modified)
         end)
     end)
 end)

src/test/resources/test-rom/spec/apis/textutils_spec.lua

@@ -12,6 +12,14 @@ describe("The textutils library", function()
             expect.error(textutils.formatTime, nil):eq("bad argument #1 (expected number, got nil)")
             expect.error(textutils.formatTime, 1, 1):eq("bad argument #2 (expected boolean, got number)")
         end)
+
+        it("correctly formats 12 o'clock", function()
+            expect(textutils.formatTime(0, false)):eq("12:00 AM")
+            expect(textutils.formatTime(0.1, false)):eq("12:06 AM")
+
+            expect(textutils.formatTime(0, true)):eq("0:00")
+            expect(textutils.formatTime(0.1, true)):eq("0:06")
+        end)
     end)
 
     describe("textutils.pagedPrint", function()
@@ -49,7 +57,7 @@ describe("The textutils library", function()
     describe("textutils.empty_json_array", function()
         it("is immutable", function()
             expect.error(function() textutils.empty_json_array[1] = true end)
-                :str_match("^[^:]+:51: attempt to mutate textutils.empty_json_array$")
+                :str_match("^[^:]+:%d+: attempt to mutate textutils.empty_json_array$")
         end)
     end)
 
@@ -78,6 +86,20 @@ describe("The textutils library", function()
         it("serializes null", function()
             expect(textutils.serializeJSON(textutils.json_null)):eq("null")
         end)
+
+        it("serializes strings", function()
+            expect(textutils.serializeJSON('a')):eq('"a"')
+            expect(textutils.serializeJSON('"')):eq('"\\""')
+            expect(textutils.serializeJSON('\\')):eq('"\\\\"')
+            expect(textutils.serializeJSON('/')):eq('"/"')
+            expect(textutils.serializeJSON('\b')):eq('"\\b"')
+            expect(textutils.serializeJSON('\n')):eq('"\\n"')
+            expect(textutils.serializeJSON(string.char(0))):eq('"\\u0000"')
+            expect(textutils.serializeJSON(string.char(0x0A))):eq('"\\n"')
+            expect(textutils.serializeJSON(string.char(0x1D))):eq('"\\u001D"')
+            expect(textutils.serializeJSON(string.char(0x81))):eq('"\\u0081"')
+            expect(textutils.serializeJSON(string.char(0xFF))):eq('"\\u00FF"')
+        end)
     end)
 
     describe("textutils.unserializeJSON", function()

src/test/resources/test-rom/spec/programs/motd_spec.lua

@@ -1,14 +1,36 @@
 local capture = require "test_helpers".capture_program
 
 describe("The motd program", function()
+    local function setup_date(month, day)
+        stub(os, "date", function() return { month = month, day = day } end)
+    end
 
-    it("displays MODT", function()
-        local file = fs.open("/modt_check.txt", "w")
+    it("displays MOTD", function()
+        setup_date(0, 0)
+        local file = fs.open("/motd_check.txt", "w")
         file.write("Hello World!")
         file.close()
-        settings.set("motd.path", "/modt_check.txt")
+        settings.set("motd.path", "/motd_check.txt")
 
         expect(capture(stub, "motd"))
             :matches { ok = true, output = "Hello World!\n", error = "" }
     end)
+
+    it("displays date-specific MOTD (1/1)", function()
+        setup_date(1, 1)
+        expect(capture(stub, "motd"))
+            :matches { ok = true, output = "Happy new year!\n", error = "" }
+    end)
+
+    it("displays date-specific MOTD (10/31)", function()
+        setup_date(10, 31)
+        expect(capture(stub, "motd"))
+            :matches { ok = true, output = "OOoooOOOoooo! Spooky!\n", error = "" }
+    end)
+
+    it("displays date-specific MOTD (12/24)", function()
+        setup_date(12, 24)
+        expect(capture(stub, "motd"))
+            :matches { ok = true, output = "Merry X-mas!\n", error = "" }
+    end)
 end)