Fixes #2376: Implemented coloring on color applicator.

src/main/java/appeng/items/tools/ToolBiometricCardRendering.java

@@ -3,6 +3,8 @@ package appeng.items.tools;
 
 import net.minecraft.client.renderer.block.model.ModelResourceLocation;
 import net.minecraft.util.ResourceLocation;
+import net.minecraftforge.fml.relauncher.Side;
+import net.minecraftforge.fml.relauncher.SideOnly;
 
 import appeng.bootstrap.IItemRendering;
 import appeng.bootstrap.ItemRenderingCustomizer;
@@ -13,9 +15,10 @@ import appeng.core.AppEng;
 public class ToolBiometricCardRendering extends ItemRenderingCustomizer
 {
 
-	public static final ResourceLocation MODEL = new ResourceLocation( AppEng.MOD_ID, "builtin/biometric_card" );
+	private static final ResourceLocation MODEL = new ResourceLocation( AppEng.MOD_ID, "builtin/biometric_card" );
 
 	@Override
+	@SideOnly( Side.CLIENT )
 	public void customize( IItemRendering rendering )
 	{
 		rendering.builtInModel( "models/item/builtin/biometric_card", new BiometricCardModel() );

src/main/java/appeng/items/tools/powered/ToolColorApplicator.java

@@ -101,11 +101,6 @@ public class ToolColorApplicator extends AEBasePoweredItem implements IStorageCe
 	public ToolColorApplicator()
 	{
 		super( AEConfig.instance.colorApplicatorBattery );
-		if( Platform.isClient() )
-		{
-			// TODO - color applicator
-			// MinecraftForgeClient.registerItemRenderer( this, new ToolColorApplicatorRender() );
-		}
 	}
 
 	@Override

src/main/java/appeng/items/tools/powered/ToolColorApplicatorRendering.java

@@ -0,0 +1,67 @@
+package appeng.items.tools.powered;
+
+
+import net.minecraft.client.renderer.block.model.ModelResourceLocation;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.ResourceLocation;
+import net.minecraftforge.fml.relauncher.Side;
+import net.minecraftforge.fml.relauncher.SideOnly;
+
+import appeng.api.util.AEColor;
+import appeng.bootstrap.IItemRendering;
+import appeng.bootstrap.ItemRenderingCustomizer;
+import appeng.client.render.model.ColorApplicatorModel;
+import appeng.core.AppEng;
+
+
+public class ToolColorApplicatorRendering extends ItemRenderingCustomizer
+{
+
+	private static final ModelResourceLocation MODEL_COLORED = new ModelResourceLocation( new ResourceLocation( AppEng.MOD_ID, "builtin/color_applicator_colored" ), "inventory" );
+	private static final ModelResourceLocation MODEL_UNCOLORED = new ModelResourceLocation( new ResourceLocation( AppEng.MOD_ID, "color_applicator_uncolored" ), "inventory" );
+
+	@Override
+	@SideOnly( Side.CLIENT )
+	public void customize( IItemRendering rendering )
+	{
+		rendering.builtInModel( "models/item/builtin/color_applicator_colored", new ColorApplicatorModel() );
+		rendering.variants( MODEL_COLORED, MODEL_UNCOLORED );
+		rendering.color( this::getColor );
+		rendering.meshDefinition( this::getMesh );
+	}
+
+	private ModelResourceLocation getMesh( ItemStack itemStack )
+	{
+		// If the stack has no color, don't use the colored model since the impact of calling getColor for every quad is extremely high,
+		// if the stack tries to re-search its inventory for a new paintball everytime
+		AEColor col = ( (ToolColorApplicator) itemStack.getItem() ).getActiveColor( itemStack );
+		return ( col != null ) ? MODEL_COLORED : MODEL_UNCOLORED;
+	}
+
+	private int getColor( ItemStack itemStack, int idx )
+	{
+		if( idx == 0 )
+		{
+			return -1;
+		}
+
+		final AEColor col = ( (ToolColorApplicator) itemStack.getItem() ).getActiveColor( itemStack );
+
+		if( col == null )
+		{
+			return -1;
+		}
+
+		switch( idx )
+		{
+			case 1:
+				return col.blackVariant;
+			case 2:
+				return col.mediumVariant;
+			case 3:
+				return col.whiteVariant;
+			default:
+				return -1;
+		}
+	}
+}