package com.tahgcraft.lca.client;

import java.awt.geom.Rectangle2D;
import java.util.HashMap;

import org.lwjgl.opengl.GL11;

import com.tahgcraft.lca.common.LCA;
import com.tahgcraft.lca.common.TileEntityHybridProjector;

import net.minecraft.block.Block;
import net.minecraft.client.model.PositionTextureVertex;
import net.minecraft.client.model.TexturedQuad;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.entity.RenderItem;
import net.minecraft.client.renderer.entity.RenderManager;
import net.minecraft.client.renderer.texture.SimpleTexture;
import net.minecraft.client.renderer.tileentity.TileEntitySpecialRenderer;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.Vec3;

public class TileEntityHybridProjectorRenderer extends TileEntitySpecialRenderer {
    private static final ResourceLocation RSC_PROJECTOR = new ResourceLocation("lca:textures/entities/projector.png");
    static HashMap<ResourceLocation, SimpleTexture> textures = new HashMap<ResourceLocation, SimpleTexture>();
	ModelProjector projector = new ModelProjector();
	RenderItem ri = null;
	TexturedQuad quad = new TexturedQuad(new PositionTextureVertex[] {
		new PositionTextureVertex(-.5F, -.5F, 0, 0, 0),
		new PositionTextureVertex(.5F, -.5F, 0, 1, 0),
		new PositionTextureVertex(.5F, .5F, 0, 1, 1),
		new PositionTextureVertex(-.5F, .5F, 0, 0, 1)});

	public void renderTileEntityAt(TileEntityHybridProjector entity, double x, double y, double z, float f) {
		int meta = entity.getWorldObj().getBlockMetadata(entity.xCoord, entity.yCoord, entity.zCoord);
		int dir = meta & 3;
		Block block = entity.getWorldObj().getBlock(entity.xCoord, entity.yCoord, entity.zCoord);
		bindTexture(RSC_PROJECTOR);
		GL11.glPushMatrix();
		GL11.glTranslated(x + .5, y + .5, z + .5);
		GL11.glScaled(1, -1, -1);
		GL11.glColor3f(1, 1, 1);
		GL11.glRotated(90 * (dir  + 2), 0, 1, 0);
		if (block == LCA.blockVerticalProjector) {
			GL11.glRotated(90, 1, 0, 0);
		}

		if (entity.location ==  null) entity.setPictureLocation();
 		ResourceLocation location = entity.location;
		projector.renderAll(location != null);

		if (block == LCA.blockVerticalProjector) {
			GL11.glRotated(-90, 1, 0, 0);
		}
		if (location != null && entity.hasPower()) {
		    String name = entity.getRawImageName();
		    int dmgOffset = name.indexOf('@');
		    int damage = 0;
		    if (dmgOffset > 0) {
		        try {
		            damage = Integer.parseInt(name.substring(dmgOffset + 1));
		        }
		        catch (Exception e) {
		        }
		        name = name.substring(0, dmgOffset);
		    }
	        Item item = (Item)Item.itemRegistry.getObject(name);
            Vec3 center = entity.getCenter();
            Vec3 size = entity.getSize();
            GL11.glTranslated(-center.xCoord, -center.yCoord, center.zCoord + .5);
            double yaw = entity.getRotation();
            double scale = entity.getScale();
            if (entity.getPeriod() != 0)
                yaw += (entity.getWorldObj().getTotalWorldTime() + f) / entity.getPeriod() / 20 * 360;
            GL11.glRotated(yaw, 0, 1, 0);
	        if (item != null) {
                GL11.glScaled(-scale, -scale, scale);
	            if (ri == null) {
	                ri  = new StaticRenderItem();
	                ri.setRenderManager(RenderManager.instance);
	            }
	            EntityItem ei = new EntityItem(entity.getWorldObj(), 0, 0, 0, new ItemStack(item, 1, damage));
	            ri.doRender(ei, 0, 0, 0, 0, 0);
	        }
	        else {
	            GL11.glScaled(-size.xCoord * scale, size.yCoord * scale, 1);
    	        GL11.glDisable(GL11.GL_CULL_FACE);
    	        bindTexture(location);
    	        Rectangle2D.Double tex = entity.getTexCoords();
    	        quad.vertexPositions[0] = quad.vertexPositions[0].setTexturePosition((float) tex.getX(), (float) tex.getY());
    	        quad.vertexPositions[1] = quad.vertexPositions[1].setTexturePosition((float) (tex.getX() + tex.getWidth()), (float) tex.getY());
    	        quad.vertexPositions[2] = quad.vertexPositions[2].setTexturePosition((float) (tex.getX() + tex.getWidth()), (float) (tex.getY() + tex.getHeight()));
    	        quad.vertexPositions[3] = quad.vertexPositions[3].setTexturePosition((float) tex.getX(), (float) (tex.getY() + tex.getHeight()));
    			GL11.glEnable(GL11.GL_BLEND);
    			GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    			quad.draw(Tessellator.instance, 1);
    			GL11.glDisable(GL11.GL_BLEND);
    	        GL11.glEnable(GL11.GL_CULL_FACE);
	        }
		}
		GL11.glPopMatrix();
	}

	@Override
	public void renderTileEntityAt(TileEntity entity, double x, double y, double z, float f) {
		renderTileEntityAt((TileEntityHybridProjector)entity, x, y, z, f);
	}
}