package co.uk.silvania.cities.core.client;

import org.lwjgl.opengl.GL11;

import co.uk.silvania.cities.core.CoreBlocks;
import cpw.mods.fml.client.registry.ISimpleBlockRenderingHandler;
import net.minecraft.block.Block;
import net.minecraft.client.renderer.RenderBlocks;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.util.IIcon;
import net.minecraft.world.IBlockAccess;

public class LightBlockRenderer implements ISimpleBlockRenderingHandler {

    Tessellator tess;

    @Override
    public void renderInventoryBlock(Block block, int meta, int modelId, RenderBlocks renderer) {
        tess = Tessellator.instance;

        GL11.glTranslatef(-0.5F, -0.5F, -0.5F);

        IIcon light = CoreBlocks.lightingBlocks.getIcon(0, meta);
        IIcon side = CoreBlocks.lightingBlocks.getIcon(2, meta);

        double u0 = (double) light.getMinU();
        double u1 = (double) light.getMaxU();

        double v0 = (double) light.getMinV();
        double v1 = (double) light.getMaxV();

        double u2 = (double) side.getMinU();
        double u3 = (double) side.getMaxU();

        double v2 = (double) side.getMinV();
        double v3 = (double) side.getMaxV();

        final float FACE_XZ_NORMAL = 0.8944F;
        final float FACE_Y_NORMAL  = 0.4472F;

        tess.startDrawingQuads();

        double a = 0.96875; //base height
        //Top Side
        tess.setNormal(0.0F, 1.0F, 0.0F);
        tess.addVertexWithUV(0, 1, 0, u3, v3);
        tess.addVertexWithUV(0, 1, 1, u3, v2);
        tess.addVertexWithUV(1, 1, 1, u2, v2);
        tess.addVertexWithUV(1, 1, 0, u2, v3);
        tess.draw();

        //North Side
        tess.startDrawingQuads();
        tess.setNormal(0.0F, FACE_Y_NORMAL, -FACE_XZ_NORMAL);
        tess.addVertexWithUV(1, 1, 0, u3, v3);
        tess.addVertexWithUV(1, a, 0, u3, v2);
        tess.addVertexWithUV(0, a, 0, u2, v2);
        tess.addVertexWithUV(0, 1, 0, u2, v3);
        tess.draw();

        //East Side
        tess.startDrawingQuads();
        tess.setNormal(FACE_XZ_NORMAL, FACE_Y_NORMAL, 0.0F);
        tess.addVertexWithUV(1, 1, 1, u3, v3);
        tess.addVertexWithUV(1, a, 1, u3, v2);
        tess.addVertexWithUV(1, a, 0, u2, v2);
        tess.addVertexWithUV(1, 1, 0, u2, v3);
        tess.draw();

        //South Side
        tess.startDrawingQuads();
        tess.setNormal(0.0F, FACE_Y_NORMAL, FACE_XZ_NORMAL);
        tess.addVertexWithUV(0, 1, 1, u3, v3);
        tess.addVertexWithUV(0, a, 1, u3, v2);
        tess.addVertexWithUV(1, a, 1, u2, v2);
        tess.addVertexWithUV(1, 1, 1, u2, v3);
        tess.draw();

        //West Side
        tess.startDrawingQuads();
        tess.setNormal(-FACE_XZ_NORMAL, FACE_Y_NORMAL, 0.0F);
        tess.addVertexWithUV(0, 1, 0, u3, v3);
        tess.addVertexWithUV(0, a, 0, u3, v2);
        tess.addVertexWithUV(0, a, 1, u2, v2);
        tess.addVertexWithUV(0, 1, 1, u2, v3);
        tess.draw();

        //Bottom Side
        tess.startDrawingQuads();
        tess.setNormal(0.0F, -1.0F, 0.0F);
        tess.addVertexWithUV(0, a, 1, u1, v1);
        tess.addVertexWithUV(0, a, 0, u1, v0);
        tess.addVertexWithUV(1, a, 0, u0, v0);
        tess.addVertexWithUV(1, a, 1, u0, v1);

        tess.draw();
        GL11.glTranslatef(0.5F, 0.5F, 0.5F);
    }

    @Override
    public boolean renderWorldBlock(IBlockAccess world, int x, int y, int z, Block block, int modelId, RenderBlocks renderer) {
        System.out.println("Rendering world block");
        tess = Tessellator.instance;

        IIcon light = CoreBlocks.lightingBlocks.getIcon(0, 0);
        IIcon side = CoreBlocks.lightingBlocks.getIcon(2, 0);

        double u0 = (double) light.getMinU();
        double u1 = (double) light.getMaxU();

        double v0 = (double) light.getMinV();
        double v1 = (double) light.getMaxV();

        double u2 = (double) side.getMinU();
        double u3 = (double) side.getMaxU();

        double v2 = (double) side.getMinV();
        double v3 = (double) side.getMaxV();

        double a = 0.96875;
        //Top Side
        tess.addVertexWithUV(0, 1, 0, u3, v3);
        tess.addVertexWithUV(0, 1, 1, u3, v2);
        tess.addVertexWithUV(1, 1, 1, u2, v2);
        tess.addVertexWithUV(1, 1, 0, u2, v3);
        tess.draw();

        //North Side
        tess.startDrawingQuads();
        tess.addVertexWithUV(1, 1, 0, u3, v3);
        tess.addVertexWithUV(1, a, 0, u3, v2);
        tess.addVertexWithUV(0, a, 0, u2, v2);
        tess.addVertexWithUV(0, 1, 0, u2, v3);
        tess.draw();

        //East Side
        tess.startDrawingQuads();
        tess.addVertexWithUV(1, 1, 1, u3, v3);
        tess.addVertexWithUV(1, a, 1, u3, v2);
        tess.addVertexWithUV(1, a, 0, u2, v2);
        tess.addVertexWithUV(1, 1, 0, u2, v3);
        tess.draw();

        //South Side
        tess.startDrawingQuads();
        tess.addVertexWithUV(0, 1, 1, u3, v3);
        tess.addVertexWithUV(0, a, 1, u3, v2);
        tess.addVertexWithUV(1, a, 1, u2, v2);
        tess.addVertexWithUV(1, 1, 1, u2, v3);
        tess.draw();

        //West Side
        tess.startDrawingQuads();
        tess.addVertexWithUV(0, 1, 0, u3, v3);
        tess.addVertexWithUV(0, a, 0, u3, v2);
        tess.addVertexWithUV(0, a, 1, u2, v2);
        tess.addVertexWithUV(0, 1, 1, u2, v3);
        tess.draw();

        //Bottom Side
        tess.startDrawingQuads();
        tess.addVertexWithUV(0, a, 1, u1, v1);
        tess.addVertexWithUV(0, a, 0, u1, v0);
        tess.addVertexWithUV(1, a, 0, u0, v0);
        tess.addVertexWithUV(1, a, 1, u0, v1);

        return true;
    }

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

    @Override
    public int getRenderId() {
        return ClientProxy.lightBlockRenderID;
    }
}