package darkknight.jewelrycraft.tileentity.renders;

import org.lwjgl.opengl.GL11;
import org.lwjgl.util.glu.GLU;
import org.lwjgl.util.glu.Sphere;

import darkknight.jewelrycraft.model.ModelShadowEye;
import darkknight.jewelrycraft.tileentity.TileEntityShadowEye;
import darkknight.jewelrycraft.util.Variables;
import net.minecraft.block.Block;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.OpenGlHelper;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.tileentity.TileEntitySpecialRenderer;
import net.minecraft.entity.Entity;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.ResourceLocation;
import net.minecraft.world.World;

public class TileEntityShadowEyeRender extends TileEntitySpecialRenderer {
	ModelShadowEye	eye	= new ModelShadowEye();
	Sphere		shadow	= new Sphere();

	/**
	 * @param te
	 * @param x
	 * @param y
	 * @param z
	 * @param scale
	 */
	@Override
	public void renderTileEntityAt(TileEntity te, double x, double y,
			double z, float scale) {
		GL11.glPushMatrix();
		GL11.glTranslatef((float) x + 0.5F, (float) y + 1.6F,
				(float) z + 0.5F);
		TileEntityShadowEye eyeS = (TileEntityShadowEye) te;
		String texture = "textures/tileentities/ShadowEye"
				+ eyeS.opening + ".png";
		ResourceLocation blockTexture = new ResourceLocation(
				Variables.MODID, texture);
		Minecraft.getMinecraft().renderEngine
				.bindTexture(blockTexture);
		GL11.glPushMatrix();
		GL11.glRotatef(180F, 0.0F, 0.0F, 1.0F);
		try {
			int block = te.getBlockMetadata();
			if (block == 0)
				GL11.glRotatef(90F, 0.0F, 1.0F, 0.0F);
			else if (block == 1)
				GL11.glRotatef(180F, 0.0F, 1.0F, 0.0F);
			else if (block == 2)
				GL11.glRotatef(-90F, 0.0F, 1.0F, 0.0F);
		} catch (Exception e) {
		}
		if (te != null && te.getWorldObj() != null) {
			EntityPlayer player = te.getWorldObj()
					.getClosestPlayer(te.xCoord,
							te.yCoord,
							te.zCoord, 16D);
			if (player != null) {
				float x1 = (float) (te.xCoord
						- player.posX) + 0.5F;
				float y1 = (float) (te.yCoord
						- player.posY) + 0.5F;
				float z1 = (float) (te.zCoord
						- player.posZ) + 0.5F;
				eyeS.model.render(player, 0,
						(float) (x1 >= 0 ? Math
								.atan(z1 / x1)
								: Math.PI + Math.atan(
										z1 / x1)),
						(float) (y1 >= 0 ? Math
								.atan(y1 / x1)
								: Math.atan(y1 / x1)),
						te.blockMetadata,
						eyeS.opening, 0.0625F);
			}

		} else
			eyeS.model.render((Entity) null, 0.0F, 0.0F, 0.0F,
					0.0F, 0.0F, 0.0625F);

		if (eyeS.opening == 4) {
			GL11.glPushMatrix();
			GL11.glDisable(GL11.GL_TEXTURE_2D);
			GL11.glEnable(GL11.GL_BLEND);
			GL11.glBlendFunc(GL11.GL_ONE_MINUS_SRC_ALPHA,
					GL11.GL_ONE_MINUS_SRC_ALPHA);
			GL11.glColor4f(0.0F, 0.0F, 0.0F, 1F);
			GL11.glRotatef(eyeS.timer * 10F, 0, 1, 0);
			GL11.glRotatef(90.0F, 1, 0, 0);
			shadow.setNormals(GLU.GLU_NONE);
			shadow.draw(7.5F, 6, 6);
			GL11.glScalef(-1, -1, -1);
			shadow.draw(7.5F, 6, 6);
			GL11.glDisable(GL11.GL_BLEND);
			GL11.glEnable(GL11.GL_TEXTURE_2D);
			GL11.glPopMatrix();
		}
		GL11.glPopMatrix();
		GL11.glPopMatrix();
	}

	/**
	 * @param world
	 * @param i
	 * @param j
	 * @param k
	 * @param block
	 */
	public void adjustLightFixture(World world, int i, int j, int k,
			Block block) {
		Tessellator tess = Tessellator.instance;
		float brightness = block.getLightOpacity(world, i, j, k);
		int skyLight = world.getLightBrightnessForSkyBlocks(i, j,
				k, 0);
		int modulousModifier = skyLight % 65536;
		int divModifier = skyLight / 65536;
		tess.setColorOpaque_F(brightness, brightness, brightness);
		OpenGlHelper.setLightmapTextureCoords(
				OpenGlHelper.lightmapTexUnit,
				modulousModifier, divModifier);
	}
}