Chisel/src/main/java/com/cricketcraft/chisel/client/render/RendererSnakeStone.java

package com.cricketcraft.chisel.client.render;

import net.minecraft.block.Block;
import net.minecraft.client.renderer.RenderBlocks;
import net.minecraft.world.IBlockAccess;

import org.lwjgl.opengl.GL11;

import com.cricketcraft.chisel.block.BlockSnakestone;
import com.cricketcraft.ctmlib.Drawing;

import cpw.mods.fml.client.registry.ISimpleBlockRenderingHandler;
import cpw.mods.fml.client.registry.RenderingRegistry;

public class RendererSnakeStone implements ISimpleBlockRenderingHandler {

	public static int id;

	public RendererSnakeStone() {
		id = RenderingRegistry.getNextAvailableRenderId();
	}

	@Override
	public void renderInventoryBlock(Block block, int meta, int modelID, RenderBlocks renderer) {
		setRenderRotate(renderer, (BlockSnakestone) block, meta);
		GL11.glTranslatef(-0.5F, -0.5F, -0.5F);
		Drawing.drawBlock(block, meta, renderer);
		GL11.glTranslatef(0.5F, 0.5F, 0.5F);
		restoreRendererRotate(renderer);
	}

	@Override
	public boolean renderWorldBlock(IBlockAccess world, int x, int y, int z, Block block, int modelId, RenderBlocks renderer) {
		int meta = world.getBlockMetadata(x, y, z);

		setRenderRotate(renderer, (BlockSnakestone) block, meta);
		boolean didRender = renderer.renderStandardBlock(block, x, y, z);
		restoreRendererRotate(renderer);

		return didRender;
	}

	private void restoreRendererRotate(RenderBlocks renderer) {
		renderer.uvRotateSouth = 0;
		renderer.uvRotateEast = 0;
		renderer.uvRotateWest = 0;
		renderer.uvRotateNorth = 0;
		renderer.uvRotateTop = 0;
		renderer.uvRotateBottom = 0;
	}

	private void setRenderRotate(RenderBlocks renderer, BlockSnakestone block, int meta) {
		int type = meta & 0xC;
		int orient = meta & 0x3;

		if (type == 0) {
			switch (orient) {
			case 0:
				renderer.uvRotateTop = 1;
				renderer.uvRotateBottom = 2;
				break;
			case 1:
				renderer.uvRotateTop = 1;
				renderer.uvRotateBottom = 1;
				break;
			case 2:
				renderer.uvRotateTop = 0;
				renderer.uvRotateBottom = 3;
				break;
			case 3:
				renderer.uvRotateTop = 0;
				renderer.uvRotateBottom = 0;
			}

		} else if ((type == 4) || (type == 8)) {
			switch (orient) {
			case 0:
				renderer.uvRotateTop = block.flipTopTextures ? 1 : 2;
				renderer.uvRotateBottom = 1;
				renderer.uvRotateWest = 2;
				break;
			case 1:
				renderer.uvRotateTop = 1;
				renderer.uvRotateBottom = 1;
				renderer.uvRotateEast = 2;
				break;
			case 2:
				renderer.uvRotateTop = block.flipTopTextures ? 0 : 3;
				renderer.uvRotateBottom = 0;
				renderer.uvRotateSouth = 2;
				break;
			case 3:
				renderer.uvRotateTop = 0;
				renderer.uvRotateBottom = 0;
				renderer.uvRotateNorth = 2;
			}

		} else if (type == 12) {
			switch (orient) {
			case 0:
				renderer.uvRotateTop = 0;
				renderer.uvRotateBottom = 0;
				break;
			case 1:
				renderer.uvRotateTop = 1;
				renderer.uvRotateBottom = 1;
				break;
			case 2:
				renderer.uvRotateNorth = 2;
				renderer.uvRotateSouth = 2;
				renderer.uvRotateEast = 2;
				renderer.uvRotateWest = 2;
			}
		}
	}

	@Override
	public boolean shouldRender3DInInventory(int renderId) {
		return true;
	}

	@Override
	public int getRenderId() {
		return id;
	}
}