package com.hbm.render.tileentity;

import org.lwjgl.opengl.GL11;

import com.hbm.blocks.BlockDummyable;
import com.hbm.blocks.ModBlocks;
import com.hbm.main.ResourceManager;
import com.hbm.render.item.ItemRenderBase;
import com.hbm.tileentity.machine.TileEntityMachinePumpBase;

import net.minecraft.client.renderer.tileentity.TileEntitySpecialRenderer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraftforge.client.IItemRenderer;

public class RenderPump extends TileEntitySpecialRenderer implements IItemRendererProvider {

	@Override
	public void renderTileEntityAt(TileEntity tile, double x, double y, double z, float interp) {
		
		GL11.glPushMatrix();
		GL11.glTranslated(x + 0.5D, y, z + 0.5D);
		GL11.glEnable(GL11.GL_LIGHTING);
		
		switch(tile.getBlockMetadata() - BlockDummyable.offset) {
		case 3: GL11.glRotatef(90, 0F, 1F, 0F); break;
		case 5: GL11.glRotatef(180, 0F, 1F, 0F); break;
		case 2: GL11.glRotatef(270, 0F, 1F, 0F); break;
		case 4: GL11.glRotatef(0, 0F, 1F, 0F); break;
		}

		TileEntityMachinePumpBase engine = (TileEntityMachinePumpBase) tile;
		float angle = engine.lastRotor + (engine.rotor - engine.lastRotor) * interp;
		renderCommon(angle, engine.getBlockType() == ModBlocks.pump_steam ? 0 : 1);
		//renderCommon(0, engine.getBlockType() == ModBlocks.pump_steam ? 0 : 1);
		
		GL11.glPopMatrix();
	}
	
	private void renderCommon(double rot, int type) {
		GL11.glDisable(GL11.GL_CULL_FACE);
		GL11.glShadeModel(GL11.GL_SMOOTH);

		if(type == 0) bindTexture(ResourceManager.pump_steam_tex);
		else bindTexture(ResourceManager.pump_electric_tex);
		ResourceManager.pump.renderPart("Base");
		
		GL11.glPushMatrix();
		GL11.glTranslated(0, 2.25, 0);
		GL11.glRotated(rot - 90, 0, 0, 1);
		GL11.glTranslated(0, -2.25, 0);
		ResourceManager.pump.renderPart("Rotor");
		GL11.glPopMatrix();
		
		double sin = Math.sin(rot * Math.PI / 180D) * 0.5D - 0.5D;
		double cos = Math.cos(rot * Math.PI / 180D) * 0.5D;
		double ang = Math.acos(cos / 2D);
		double cath = Math.sqrt(1 + (cos * cos) / 2);
		
		GL11.glPushMatrix();
		GL11.glTranslated(0, 1 - cath + sin, 0);
		GL11.glTranslated(0, 4.75, 0);
		GL11.glRotated(ang * 180D / Math.PI - 90D, 0, 0, -1);
		GL11.glTranslated(0, -4.75, 0);
		ResourceManager.pump.renderPart("Arms");
		GL11.glPopMatrix();

		GL11.glPushMatrix();
		GL11.glTranslated(0, 1 - cath + sin, 0);
		ResourceManager.pump.renderPart("Piston");
		GL11.glPopMatrix();
		
		GL11.glShadeModel(GL11.GL_FLAT);
		GL11.glEnable(GL11.GL_CULL_FACE);
	}

	@Override
	public Item getItemForRenderer() {
		return Item.getItemFromBlock(ModBlocks.pump_steam);
	}

	@Override
	public Item[] getItemsForRenderer() {
		return new Item[] {
				Item.getItemFromBlock(ModBlocks.pump_steam),
				Item.getItemFromBlock(ModBlocks.pump_electric)
		};
	}

	@Override
	public IItemRenderer getRenderer() {
		return new ItemRenderBase( ) {
			public void renderInventory() {
				GL11.glTranslated(0, -3, 0);
				GL11.glScaled(2.5, 2.5, 2.5);
			}
			public void renderCommonWithStack(ItemStack item) {
				RenderPump.this.renderCommon(System.currentTimeMillis() % 3600 * 0.1F, item.getItem() == Item.getItemFromBlock(ModBlocks.pump_steam) ? 0 : 1);
			}};
	}
}