Merge branch 'mc-1.14.x' into mc-1.15.x

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

@@ -46,10 +46,9 @@ public final class FixedWidthFontRenderer
         return (float) ((rgb[0] + rgb[1] + rgb[2]) / 3);
     }
 
-    private static int getColour( char c )
+    private static int getColour( char c, Colour def )
     {
-        int i = "0123456789abcdef".indexOf( c );
-        return i < 0 ? 0 : 15 - i;
+        return 15 - Terminal.getColour( c, def );
     }
 
     private static void drawChar( Matrix4f transform, IVertexBuilder buffer, float x, float y, int index, float r, float g, float b )
@@ -83,7 +82,7 @@ public final class FixedWidthFontRenderer
 
     private static void drawQuad( Matrix4f transform, IVertexBuilder buffer, float x, float y, float width, float height, Palette palette, boolean greyscale, char colourIndex )
     {
-        double[] colour = palette.getColour( getColour( colourIndex ) );
+        double[] colour = palette.getColour( getColour( colourIndex, Colour.BLACK ) );
         float r, g, b;
         if( greyscale )
         {
@@ -151,7 +150,7 @@ public final class FixedWidthFontRenderer
 
         for( int i = 0; i < text.length(); i++ )
         {
-            double[] colour = palette.getColour( 15 - "0123456789abcdef".indexOf( textColour.charAt( i ) ) );
+            double[] colour = palette.getColour( getColour( textColour.charAt( i ), Colour.BLACK ) );
             float r, g, b;
             if( greyscale )
             {

src/main/java/dan200/computercraft/core/terminal/Terminal.java

@@ -5,18 +5,20 @@
  */
 package dan200.computercraft.core.terminal;
 
+import dan200.computercraft.shared.util.Colour;
 import dan200.computercraft.shared.util.Palette;
 import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.network.PacketBuffer;
 
 public class Terminal
 {
     private static final String base16 = "0123456789abcdef";
 
-    private int m_cursorX;
-    private int m_cursorY;
-    private boolean m_cursorBlink;
-    private int m_cursorColour;
-    private int m_cursorBackgroundColour;
+    private int m_cursorX = 0;
+    private int m_cursorY = 0;
+    private boolean m_cursorBlink = false;
+    private int m_cursorColour = 0;
+    private int m_cursorBackgroundColour = 15;
 
     private int m_width;
     private int m_height;
@@ -25,9 +27,9 @@ public class Terminal
     private TextBuffer[] m_textColour;
     private TextBuffer[] m_backgroundColour;
 
-    private final Palette m_palette;
+    private final Palette m_palette = new Palette();
 
-    private boolean m_changed;
+    private boolean m_changed = false;
     private final Runnable onChanged;
 
     public Terminal( int width, int height )
@@ -41,9 +43,6 @@ public class Terminal
         m_height = height;
         onChanged = changedCallback;
 
-        m_cursorColour = 0;
-        m_cursorBackgroundColour = 15;
-
         m_text = new TextBuffer[m_height];
         m_textColour = new TextBuffer[m_height];
         m_backgroundColour = new TextBuffer[m_height];
@@ -53,14 +52,6 @@ public class Terminal
             m_textColour[i] = new TextBuffer( base16.charAt( m_cursorColour ), m_width );
             m_backgroundColour[i] = new TextBuffer( base16.charAt( m_cursorBackgroundColour ), m_width );
         }
-
-        m_cursorX = 0;
-        m_cursorY = 0;
-        m_cursorBlink = false;
-
-        m_changed = false;
-
-        m_palette = new Palette();
     }
 
     public synchronized void reset()
@@ -323,6 +314,62 @@ public class Terminal
         m_changed = false;
     }
 
+    public synchronized void write( PacketBuffer buffer )
+    {
+        buffer.writeInt( m_cursorX );
+        buffer.writeInt( m_cursorY );
+        buffer.writeBoolean( m_cursorBlink );
+        buffer.writeByte( m_cursorBackgroundColour << 4 | m_cursorColour );
+
+        for( int y = 0; y < m_height; y++ )
+        {
+            TextBuffer text = m_text[y];
+            TextBuffer textColour = m_textColour[y];
+            TextBuffer backColour = m_backgroundColour[y];
+
+            for( int x = 0; x < m_width; x++ )
+            {
+                buffer.writeByte( text.charAt( x ) & 0xFF );
+                buffer.writeByte( getColour(
+                    backColour.charAt( x ), Colour.BLACK ) << 4 |
+                    getColour( textColour.charAt( x ), Colour.WHITE )
+                );
+            }
+        }
+
+        m_palette.write( buffer );
+    }
+
+    public synchronized void read( PacketBuffer buffer )
+    {
+        m_cursorX = buffer.readInt();
+        m_cursorY = buffer.readInt();
+        m_cursorBlink = buffer.readBoolean();
+
+        byte cursorColour = buffer.readByte();
+        m_cursorBackgroundColour = (cursorColour >> 4) & 0xF;
+        m_cursorColour = cursorColour & 0xF;
+
+        for( int y = 0; y < m_height; y++ )
+        {
+            TextBuffer text = m_text[y];
+            TextBuffer textColour = m_textColour[y];
+            TextBuffer backColour = m_backgroundColour[y];
+
+            for( int x = 0; x < m_width; x++ )
+            {
+                text.setChar( x, (char) (buffer.readByte() & 0xFF) );
+
+                byte colour = buffer.readByte();
+                backColour.setChar( x, base16.charAt( (colour >> 4) & 0xF ) );
+                textColour.setChar( x, base16.charAt( colour & 0xF ) );
+            }
+        }
+
+        m_palette.read( buffer );
+        setChanged();
+    }
+
     public synchronized CompoundNBT writeToNBT( CompoundNBT nbt )
     {
         nbt.putInt( "term_cursorX", m_cursorX );
@@ -336,10 +383,8 @@ public class Terminal
             nbt.putString( "term_textColour_" + n, m_textColour[n].toString() );
             nbt.putString( "term_textBgColour_" + n, m_backgroundColour[n].toString() );
         }
-        if( m_palette != null )
-        {
-            m_palette.writeToNBT( nbt );
-        }
+
+        m_palette.writeToNBT( nbt );
         return nbt;
     }
 
@@ -369,10 +414,15 @@ public class Terminal
                 m_backgroundColour[n].write( nbt.getString( "term_textBgColour_" + n ) );
             }
         }
-        if( m_palette != null )
-        {
-            m_palette.readFromNBT( nbt );
-        }
+
+        m_palette.readFromNBT( nbt );
         setChanged();
     }
+
+    public static int getColour( char c, Colour def )
+    {
+        if( c >= '0' && c <= '9' ) return c - '0';
+        if( c >= 'a' && c <= 'f' ) return c - 'a' + 10;
+        return 15 - def.ordinal();
+    }
 }

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

@@ -8,6 +8,7 @@ package dan200.computercraft.data;
 
 import dan200.computercraft.ComputerCraft;
 import dan200.computercraft.shared.data.BlockNamedEntityLootCondition;
+import dan200.computercraft.shared.data.HasComputerIdLootCondition;
 import dan200.computercraft.shared.data.PlayerCreativeLootCondition;
 import dan200.computercraft.shared.proxy.ComputerCraftProxyCommon;
 import net.minecraft.block.Block;
@@ -73,6 +74,7 @@ public class LootTables extends LootTableProvider
                 .addEntry( DynamicLootEntry.func_216162_a( new ResourceLocation( ComputerCraft.MOD_ID, "computer" ) ) )
                 .acceptCondition( Alternative.builder(
                     BlockNamedEntityLootCondition.builder(),
+                    HasComputerIdLootCondition.builder(),
                     PlayerCreativeLootCondition.builder().inverted()
                 ) )
             ).build() );

src/main/java/dan200/computercraft/shared/common/ClientTerminal.java

@@ -6,7 +6,9 @@
 package dan200.computercraft.shared.common;
 
 import dan200.computercraft.core.terminal.Terminal;
+import io.netty.buffer.Unpooled;
 import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.network.PacketBuffer;
 
 public class ClientTerminal implements ITerminal
 {
@@ -53,7 +55,7 @@ public class ClientTerminal implements ITerminal
         {
             CompoundNBT terminal = nbt.getCompound( "terminal" );
             resizeTerminal( terminal.getInt( "term_width" ), terminal.getInt( "term_height" ) );
-            m_terminal.readFromNBT( terminal );
+            m_terminal.read( new PacketBuffer( Unpooled.wrappedBuffer( terminal.getByteArray( "term_contents" ) ) ) );
         }
         else
         {

src/main/java/dan200/computercraft/shared/common/ServerTerminal.java

@@ -5,8 +5,12 @@
  */
 package dan200.computercraft.shared.common;
 
+import dan200.computercraft.ComputerCraft;
 import dan200.computercraft.core.terminal.Terminal;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
 import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.network.PacketBuffer;
 
 import java.util.concurrent.atomic.AtomicBoolean;
 
@@ -83,17 +87,28 @@ public class ServerTerminal implements ITerminal
         return m_colour;
     }
 
-    // Networking stuff
-
     public void writeDescription( CompoundNBT nbt )
     {
         nbt.putBoolean( "colour", m_colour );
         if( m_terminal != null )
         {
+            // We have a 10 byte header (2 integer positions, then blinking and current colours), followed by the
+            // contents and palette.
+            // Yes, this serialisation code is terrible, but we need to serialise to NBT in order to work with monitors
+            // (or rather tile entity serialisation).
+            final int length = 10 + (2 * m_terminal.getWidth() * m_terminal.getHeight()) + (16 * 3);
+            ByteBuf buffer = Unpooled.buffer( length );
+            m_terminal.write( new PacketBuffer( buffer ) );
+
+            if( buffer.writableBytes() != 0 )
+            {
+                ComputerCraft.log.warn( "Should have written {} bytes, but have {} ({} remaining).", length, buffer.writerIndex(), buffer.writableBytes() );
+            }
+
             CompoundNBT terminal = new CompoundNBT();
             terminal.putInt( "term_width", m_terminal.getWidth() );
             terminal.putInt( "term_height", m_terminal.getHeight() );
-            m_terminal.writeToNBT( terminal );
+            terminal.putByteArray( "term_contents", buffer.array() );
             nbt.put( "terminal", terminal );
         }
     }

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

@@ -19,9 +19,7 @@ public final class ComputerItemFactory
     @Nonnull
     public static ItemStack create( TileComputer tile )
     {
-        String label = tile.getLabel();
-        int id = label != null ? tile.getComputerID() : -1;
-        return create( id, label, tile.getFamily() );
+        return create( tile.getComputerID(), tile.getLabel(), tile.getFamily() );
     }
 
     @Nonnull

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

@@ -37,7 +37,7 @@ public abstract class ItemComputerBase extends BlockItem implements IComputerIte
     @Override
     public void addInformation( @Nonnull ItemStack stack, @Nullable World world, @Nonnull List<ITextComponent> list, @Nonnull ITooltipFlag options )
     {
-        if( options.isAdvanced() )
+        if( options.isAdvanced() || getLabel( stack ) == null )
         {
             int id = getComputerID( stack );
             if( id >= 0 )

src/main/java/dan200/computercraft/shared/data/HasComputerIdLootCondition.java

@@ -0,0 +1,48 @@
+/*
+ * 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.data;
+
+import dan200.computercraft.shared.computer.blocks.IComputerTile;
+import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.storage.loot.LootContext;
+import net.minecraft.world.storage.loot.LootParameter;
+import net.minecraft.world.storage.loot.LootParameters;
+import net.minecraft.world.storage.loot.conditions.ILootCondition;
+
+import javax.annotation.Nonnull;
+import java.util.Collections;
+import java.util.Set;
+
+/**
+ * A loot condition which checks if the tile entity has has a non-0 ID.
+ */
+public final class HasComputerIdLootCondition implements ILootCondition
+{
+    public static final HasComputerIdLootCondition INSTANCE = new HasComputerIdLootCondition();
+
+    private HasComputerIdLootCondition()
+    {
+    }
+
+    @Override
+    public boolean test( LootContext lootContext )
+    {
+        TileEntity tile = lootContext.get( LootParameters.BLOCK_ENTITY );
+        return tile instanceof IComputerTile && ((IComputerTile) tile).getComputerID() >= 0;
+    }
+
+    @Nonnull
+    @Override
+    public Set<LootParameter<?>> getRequiredParameters()
+    {
+        return Collections.singleton( LootParameters.BLOCK_ENTITY );
+    }
+
+    public static IBuilder builder()
+    {
+        return () -> INSTANCE;
+    }
+}

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

@@ -184,7 +184,7 @@ public class ItemPocketComputer extends Item implements IComputerItem, IMedia, I
     @Override
     public void addInformation( @Nonnull ItemStack stack, @Nullable World world, List<ITextComponent> list, ITooltipFlag flag )
     {
-        if( flag.isAdvanced() )
+        if( flag.isAdvanced() || getLabel( stack ) == null )
         {
             int id = getComputerID( stack );
             if( id >= 0 )

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

@@ -19,6 +19,7 @@ import dan200.computercraft.shared.computer.core.IContainerComputer;
 import dan200.computercraft.shared.computer.core.ServerComputer;
 import dan200.computercraft.shared.data.BlockNamedEntityLootCondition;
 import dan200.computercraft.shared.data.ConstantLootConditionSerializer;
+import dan200.computercraft.shared.data.HasComputerIdLootCondition;
 import dan200.computercraft.shared.data.PlayerCreativeLootCondition;
 import dan200.computercraft.shared.media.items.RecordMedia;
 import dan200.computercraft.shared.network.NetworkHandler;
@@ -79,6 +80,12 @@ public final class ComputerCraftProxyCommon
             PlayerCreativeLootCondition.class,
             PlayerCreativeLootCondition.INSTANCE
         ) );
+
+        LootConditionManager.registerCondition( ConstantLootConditionSerializer.of(
+            new ResourceLocation( ComputerCraft.MOD_ID, "has_id" ),
+            HasComputerIdLootCondition.class,
+            HasComputerIdLootCondition.INSTANCE
+        ) );
     }
 
     private static void registerProviders()

src/main/java/dan200/computercraft/shared/turtle/items/TurtleItemFactory.java

@@ -6,6 +6,7 @@
 package dan200.computercraft.shared.turtle.items;
 
 import dan200.computercraft.ComputerCraft;
+import dan200.computercraft.api.turtle.ITurtleAccess;
 import dan200.computercraft.api.turtle.ITurtleUpgrade;
 import dan200.computercraft.api.turtle.TurtleSide;
 import dan200.computercraft.shared.computer.core.ComputerFamily;
@@ -22,18 +23,13 @@ public final class TurtleItemFactory
     @Nonnull
     public static ItemStack create( ITurtleTile turtle )
     {
-        ITurtleUpgrade leftUpgrade = turtle.getAccess().getUpgrade( TurtleSide.LEFT );
-        ITurtleUpgrade rightUpgrade = turtle.getAccess().getUpgrade( TurtleSide.RIGHT );
+        ITurtleAccess access = turtle.getAccess();
 
-        String label = turtle.getLabel();
-        if( label == null )
-        {
-            return create( -1, null, turtle.getColour(), turtle.getFamily(), leftUpgrade, rightUpgrade, 0, turtle.getOverlay() );
-        }
-
-        int id = turtle.getComputerID();
-        int fuelLevel = turtle.getAccess().getFuelLevel();
-        return create( id, label, turtle.getColour(), turtle.getFamily(), leftUpgrade, rightUpgrade, fuelLevel, turtle.getOverlay() );
+        return create(
+            turtle.getComputerID(), turtle.getLabel(), turtle.getColour(), turtle.getFamily(),
+            access.getUpgrade( TurtleSide.LEFT ), access.getUpgrade( TurtleSide.RIGHT ),
+            access.getFuelLevel(), turtle.getOverlay()
+        );
     }
 
     @Nonnull

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

@@ -6,6 +6,7 @@
 package dan200.computercraft.shared.util;
 
 import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.network.PacketBuffer;
 
 public class Palette
 {
@@ -78,6 +79,22 @@ public class Palette
         };
     }
 
+    public void write( PacketBuffer buffer )
+    {
+        for( double[] colour : colours )
+        {
+            for( double channel : colour ) buffer.writeByte( (int) (channel * 0xFF) & 0xFF );
+        }
+    }
+
+    public void read( PacketBuffer buffer )
+    {
+        for( double[] colour : colours )
+        {
+            for( int i = 0; i < colour.length; i++ ) colour[i] = buffer.readByte() * 255;
+        }
+    }
+
     public CompoundNBT writeToNBT( CompoundNBT nbt )
     {
         int[] rgb8 = new int[colours.length];