Mekanism-tilera-Edition/src/minecraft/mekanism/client/ItemRenderingHandler.java

package mekanism.client;

import mekanism.api.IEnergyCube;
import mekanism.api.Tier.EnergyCubeTier;
import mekanism.common.Mekanism;
import net.minecraft.block.Block;
import net.minecraft.client.renderer.RenderBlocks;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.item.ItemStack;
import net.minecraftforge.client.IItemRenderer;

import org.lwjgl.opengl.GL11;

public class ItemRenderingHandler implements IItemRenderer
{
	@Override
	public boolean handleRenderType(ItemStack item, ItemRenderType type)
	{
		return true;
	}

	@Override
	public boolean shouldUseRenderHelper(ItemRenderType type, ItemStack item, ItemRendererHelper helper)
	{
		return true;
	}

	@Override
	public void renderItem(ItemRenderType type, ItemStack item, Object... data) 
	{
		if(item.getItem() instanceof IEnergyCube)
		{
			EnergyCubeTier tier = ((IEnergyCube)item.getItem()).getTier(item);
	        
	        if(type == ItemRenderType.EQUIPPED)
	        {
	        	GL11.glTranslatef(0.5F, 0.5F, 0.5F);
	        }
	        
	        renderItem((RenderBlocks)data[0], tier.ordinal());
		}
	}
	
	/**
	 * Cleaned-up snip of RenderBlocks.renderBlockAsItem() -- used for rendering an item as an entity,
	 * in a player's inventory, and in a player's hand.
	 * @param renderer - RenderBlocks renderer to render the item with
	 * @param metadata - block/item metadata
	 * @param block - block to render
	 */
	public void renderItem(RenderBlocks renderer, int metadata)
	{
		Block block = Block.blocksList[Mekanism.energyCubeID];
		renderer.setRenderBoundsFromBlock(block);
		block.setBlockBoundsForItemRender();

        if(renderer.useInventoryTint)
        {
            int renderColor = block.getRenderColor(metadata);
            float red = (float)(renderColor >> 16 & 255) / 255.0F;
            float green = (float)(renderColor >> 8 & 255) / 255.0F;
            float blue = (float)(renderColor & 255) / 255.0F;
            GL11.glColor4f(red, green, blue, 1.0F);
        }

        GL11.glTranslatef(-0.5F, -0.5F, -0.5F);
        Tessellator tessellator = Tessellator.instance;
        tessellator.startDrawingQuads();
        tessellator.setNormal(0.0F, -1.0F, 0.0F);
        renderer.renderBottomFace(block, 0.0D, 0.0D, 0.0D, renderer.getBlockIconFromSideAndMetadata(block, 0, metadata));
        tessellator.draw();
        tessellator.startDrawingQuads();
        tessellator.setNormal(0.0F, 1.0F, 0.0F);
        renderer.renderTopFace(block, 0.0D, 0.0D, 0.0D, renderer.getBlockIconFromSideAndMetadata(block, 1, metadata));
        tessellator.draw();
        tessellator.startDrawingQuads();
        tessellator.setNormal(0.0F, 0.0F, -1.0F);
        renderer.renderEastFace(block, 0.0D, 0.0D, 0.0D, renderer.getBlockIconFromSideAndMetadata(block, 2, metadata));
        tessellator.draw();
        tessellator.startDrawingQuads();
        tessellator.setNormal(0.0F, 0.0F, 1.0F);
        renderer.renderWestFace(block, 0.0D, 0.0D, 0.0D, renderer.getBlockIconFromSideAndMetadata(block, 5, metadata));
        tessellator.draw();
        tessellator.startDrawingQuads();
        tessellator.setNormal(-1.0F, 0.0F, 0.0F);
        renderer.renderNorthFace(block, 0.0D, 0.0D, 0.0D, renderer.getBlockIconFromSideAndMetadata(block, 4, metadata));
        tessellator.draw();
        tessellator.startDrawingQuads();
        tessellator.setNormal(1.0F, 0.0F, 0.0F);
        renderer.renderSouthFace(block, 0.0D, 0.0D, 0.0D, renderer.getBlockIconFromSideAndMetadata(block, 3, metadata));
        tessellator.draw();
        GL11.glTranslatef(0.5F, 0.5F, 0.5F);
	}
}