Add simple JEI integration

- Ensure pocket computers and turtles are distinguished by upgrades and
   computer family.
 - Ensure disks are distinguished by colour.
 - Hide treasure disks from the list

build.gradle

@@ -41,28 +41,16 @@
     // makeObfSourceJar = false // an Srg named sources jar is made by default. uncomment this to disable.
 }
 
+repositories {
+    maven {
+        name = "JEI"
+        url  = "http://dvs1.progwml6.com/files/maven" 
+    }
+}
+
 dependencies {
-    // you may put jars on which you depend on in ./libs
-    // or you may define them like so..
-    //compile "some.group:artifact:version:classifier"
-    //compile "some.group:artifact:version"
-
-    // real examples
-    //compile 'com.mod-buildcraft:buildcraft:6.0.8:dev'  // adds buildcraft to the dev env
-    //compile 'com.googlecode.efficient-java-matrix-library:ejml:0.24' // adds ejml to the dev env
-
-    // the 'provided' configuration is for optional dependencies that exist at compile-time but might not at runtime.
-    //provided 'com.mod-buildcraft:buildcraft:6.0.8:dev'
-
-    // the deobf configurations:  'deobfCompile' and 'deobfProvided' are the same as the normal compile and provided,
-    // except that these dependencies get remapped to your current MCP mappings
-    //deobfCompile 'com.mod-buildcraft:buildcraft:6.0.8:dev'
-    //deobfProvided 'com.mod-buildcraft:buildcraft:6.0.8:dev'
-
-    // for more info...
-    // http://www.gradle.org/docs/current/userguide/artifact_dependencies_tutorial.html
-    // http://www.gradle.org/docs/current/userguide/dependency_management.html
-
+    deobfProvided "mezz.jei:jei_1.12:4.7.5.86:api"
+    runtime "mezz.jei:jei_1.12:4.7.5.86"
 }
 
 jar {

src/main/java/dan200/computercraft/shared/integration/JEIComputerCraft.java

@@ -0,0 +1,99 @@
+package dan200.computercraft.shared.integration;
+
+import dan200.computercraft.ComputerCraft;
+import dan200.computercraft.api.pocket.IPocketUpgrade;
+import dan200.computercraft.api.turtle.ITurtleUpgrade;
+import dan200.computercraft.api.turtle.TurtleSide;
+import dan200.computercraft.shared.media.items.ItemDiskLegacy;
+import dan200.computercraft.shared.pocket.items.ItemPocketComputer;
+import dan200.computercraft.shared.turtle.items.ITurtleItem;
+import mezz.jei.api.IModPlugin;
+import mezz.jei.api.IModRegistry;
+import mezz.jei.api.ISubtypeRegistry;
+import mezz.jei.api.ISubtypeRegistry.ISubtypeInterpreter;
+import mezz.jei.api.JEIPlugin;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraftforge.oredict.OreDictionary;
+
+@JEIPlugin
+public class JEIComputerCraft implements IModPlugin
+{
+    @Override
+    public void registerItemSubtypes( ISubtypeRegistry subtypeRegistry )
+    {
+        subtypeRegistry.registerSubtypeInterpreter( Item.getItemFromBlock( ComputerCraft.Blocks.turtle ), turtleSubtype );
+        subtypeRegistry.registerSubtypeInterpreter( Item.getItemFromBlock( ComputerCraft.Blocks.turtleExpanded ), turtleSubtype );
+        subtypeRegistry.registerSubtypeInterpreter( Item.getItemFromBlock( ComputerCraft.Blocks.turtleAdvanced ), turtleSubtype );
+
+        subtypeRegistry.registerSubtypeInterpreter( ComputerCraft.Items.pocketComputer, pocketSubtype );
+
+        subtypeRegistry.registerSubtypeInterpreter( ComputerCraft.Items.disk, diskSubtype );
+        subtypeRegistry.registerSubtypeInterpreter( ComputerCraft.Items.diskExpanded, diskSubtype );
+    }
+
+    @Override
+    public void register( IModRegistry registry )
+    {
+        // Hide treasure disks from the ingredient list
+        registry.getJeiHelpers().getIngredientBlacklist()
+            .addIngredientToBlacklist( new ItemStack( ComputerCraft.Items.treasureDisk, OreDictionary.WILDCARD_VALUE ) );
+    }
+
+    /**
+     * Distinguishes turtles by upgrades and family
+     */
+    private static final ISubtypeInterpreter turtleSubtype = stack -> {
+        Item item = stack.getItem();
+        if( !(item instanceof ITurtleItem) ) return "";
+
+        ITurtleItem turtle = (ITurtleItem) item;
+        StringBuilder name = new StringBuilder();
+
+        name.append( turtle.getFamily( stack ).toString() );
+
+        // Add left and right upgrades to the identifier
+        ITurtleUpgrade left = turtle.getUpgrade( stack, TurtleSide.Left );
+        name.append( '|' );
+        if( left != null ) name.append( left.getUpgradeID() );
+
+        ITurtleUpgrade right = turtle.getUpgrade( stack, TurtleSide.Right );
+        name.append( '|' );
+        if( right != null ) name.append( '|' ).append( right.getUpgradeID() );
+
+        return name.toString();
+    };
+
+    /**
+     * Distinguishes pocket computers by upgrade and family
+     */
+    private static final ISubtypeInterpreter pocketSubtype = stack -> {
+        Item item = stack.getItem();
+        if( !(item instanceof ItemPocketComputer) ) return "";
+
+        ItemPocketComputer pocket = (ItemPocketComputer) item;
+        StringBuilder name = new StringBuilder();
+
+        name.append( pocket.getFamily( stack ).toString() );
+
+        // Add the upgrade to the identifier
+        IPocketUpgrade upgrade = pocket.getUpgrade( stack );
+        name.append( '|' );
+        if( upgrade != null ) name.append( upgrade.getUpgradeID() );
+
+        return name.toString();
+    };
+
+    /**
+     * Distinguishes disks by colour
+     */
+    private static final ISubtypeInterpreter diskSubtype = stack -> {
+        Item item = stack.getItem();
+        if( !(item instanceof ItemDiskLegacy) ) return "";
+
+        ItemDiskLegacy disk = (ItemDiskLegacy) item;
+
+        int colour = disk.getColour( stack );
+        return colour == -1 ? "" : String.format( "%06x", colour );
+    };
+}