First pass of implementing rendering for crafting cubes (#7)

src/main/java/appeng/client/render/crafting/CraftingCubeRendering.java

@@ -0,0 +1,73 @@
+package appeng.client.render.crafting;
+
+
+import java.util.HashMap;
+import java.util.Map;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.client.renderer.block.model.ModelResourceLocation;
+import net.minecraft.util.ResourceLocation;
+
+import appeng.block.crafting.BlockCraftingUnit;
+import appeng.bootstrap.BlockRenderingCustomizer;
+import appeng.bootstrap.IBlockRendering;
+import appeng.bootstrap.IItemRendering;
+import appeng.core.AppEng;
+
+
+/**
+ * Rendering customization for the crafting cube.
+ */
+public class CraftingCubeRendering extends BlockRenderingCustomizer
+{
+
+	private final String registryName;
+
+	private final BlockCraftingUnit.CraftingUnitType type;
+
+	public CraftingCubeRendering( String registryName, BlockCraftingUnit.CraftingUnitType type )
+	{
+		this.registryName = registryName;
+		this.type = type;
+	}
+
+	@Override
+	public void customize( IBlockRendering rendering, IItemRendering itemRendering )
+	{
+		ResourceLocation baseName = new ResourceLocation( AppEng.MOD_ID, registryName );
+
+		// Disable auto-rotation
+		rendering.modelCustomizer( ( loc, model ) -> model );
+
+		// This is the standard blockstate model
+		ModelResourceLocation defaultModel = new ModelResourceLocation( baseName, "normal" );
+
+		// This is the built-in model
+		String builtInName = "models/block/crafting/" + registryName + "/builtin";
+		ModelResourceLocation builtInModelName = new ModelResourceLocation( new ResourceLocation( AppEng.MOD_ID, builtInName ), "normal" );
+
+		rendering.builtInModel( builtInName, new CraftingCubeModel( type ) );
+
+		rendering.stateMapper( block -> mapState( block, defaultModel, builtInModelName ) );
+	}
+
+	private Map<IBlockState, ModelResourceLocation> mapState( Block block, ModelResourceLocation defaultModel, ModelResourceLocation formedModel )
+	{
+		Map<IBlockState, ModelResourceLocation> result = new HashMap<>();
+		for( IBlockState state : block.getBlockState().getValidStates() )
+		{
+			if( state.getValue( BlockCraftingUnit.FORMED ) )
+			{
+				// Always use the builtin model if the multiblock is formed
+				result.put( state, formedModel );
+			}
+			else
+			{
+				// Use the default model
+				result.put( state, defaultModel );
+			}
+		}
+		return result;
+	}
+}