PipeItemRenderer.java

/**
 * Copyright (c) 2011-2014, SpaceToad and the BuildCraft Team
 * http://www.mod-buildcraft.com
 *
 * BuildCraft is distributed under the terms of the Minecraft Mod Public
 * License 1.0, or MMPL. Please check the contents of the license located in
 * http://www.mod-buildcraft.com/MMPL-1.0.txt
 */
package buildcraft.transport.render;

import buildcraft.BuildCraftTransport;
import buildcraft.core.CoreConstants;
import net.minecraft.block.Block;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.OpenGlHelper;
import net.minecraft.client.renderer.RenderBlocks;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.texture.TextureMap;
import net.minecraft.item.ItemStack;
import net.minecraft.util.IIcon;
import net.minecraftforge.client.IItemRenderer;
import org.lwjgl.opengl.GL11;

public class PipeItemRenderer implements IItemRenderer {

	private void renderPipeItem(RenderBlocks render, ItemStack item, float translateX, float translateY, float translateZ) {
		// Simply force transparency
		OpenGlHelper.glBlendFunc(770, 771, 0, 1);
		GL11.glEnable(GL11.GL_BLEND);

		// GL11.glBindTexture(GL11.GL_TEXTURE_2D, 10);
		Tessellator tessellator = Tessellator.instance;

		Block block = BuildCraftTransport.genericPipeBlock;
		IIcon icon = item.getItem().getIconFromDamage(0);

		if (icon == null)
			icon = ((TextureMap) Minecraft.getMinecraft().getTextureManager().getTexture(TextureMap.locationBlocksTexture)).getAtlasSprite("missingno");

		block.setBlockBounds(CoreConstants.PIPE_MIN_POS, 0.0F, CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MAX_POS, 1.0F, CoreConstants.PIPE_MAX_POS);
		block.setBlockBoundsForItemRender();
		render.setRenderBoundsFromBlock(block);

		GL11.glTranslatef(translateX, translateY, translateZ);
		tessellator.startDrawingQuads();
		tessellator.setNormal(0.0F, -1F, 0.0F);
		render.renderFaceYNeg(block, 0.0D, 0.0D, 0.0D, icon);
		tessellator.draw();
		tessellator.startDrawingQuads();
		tessellator.setNormal(0.0F, 1.0F, 0.0F);
		render.renderFaceYPos(block, 0.0D, 0.0D, 0.0D, icon);
		tessellator.draw();
		tessellator.startDrawingQuads();
		tessellator.setNormal(0.0F, 0.0F, -1F);
		render.renderFaceZNeg(block, 0.0D, 0.0D, 0.0D, icon);
		tessellator.draw();
		tessellator.startDrawingQuads();
		tessellator.setNormal(0.0F, 0.0F, 1.0F);
		render.renderFaceZPos(block, 0.0D, 0.0D, 0.0D, icon);
		tessellator.draw();
		tessellator.startDrawingQuads();
		tessellator.setNormal(-1F, 0.0F, 0.0F);
		render.renderFaceXNeg(block, 0.0D, 0.0D, 0.0D, icon);
		tessellator.draw();
		tessellator.startDrawingQuads();
		tessellator.setNormal(1.0F, 0.0F, 0.0F);
		render.renderFaceXPos(block, 0.0D, 0.0D, 0.0D, icon);
		tessellator.draw();
		GL11.glTranslatef(0.5F, 0.5F, 0.5F);
		block.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);

		// Cleanup
		GL11.glDisable(GL11.GL_BLEND);
	}

	/**
	 * IItemRenderer implementation *
	 */
	@Override
	public boolean handleRenderType(ItemStack item, ItemRenderType type) {
		switch (type) {
			case ENTITY:
				return true;
			case EQUIPPED:
				return true;
			case EQUIPPED_FIRST_PERSON:
				return true;
			case INVENTORY:
				return true;
			default:
				return false;
		}
	}

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

	@Override
	public void renderItem(ItemRenderType type, ItemStack item, Object... data) {
		switch (type) {
			case ENTITY:
				renderPipeItem((RenderBlocks) data[0], item, -0.5f, -0.5f, -0.5f);
				break;
			case EQUIPPED:
				renderPipeItem((RenderBlocks) data[0], item, -0.4f, 0.50f, 0.35f);
				break;
			case EQUIPPED_FIRST_PERSON:
				renderPipeItem((RenderBlocks) data[0], item, -0.4f, 0.50f, 0.35f);
				break;
			case INVENTORY:
				renderPipeItem((RenderBlocks) data[0], item, -0.5f, -0.5f, -0.5f);
				break;
			default:
		}
	}
}