/*
 * This file is part of Applied Energistics 2.
 * Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
 *
 * Applied Energistics 2 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Applied Energistics 2 is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
 */

package appeng.client.render.effects;


import net.minecraft.client.particle.ParticleBreaking;
import net.minecraft.client.renderer.VertexBuffer;
import net.minecraft.client.renderer.texture.TextureAtlasSprite;
import net.minecraft.entity.Entity;
import net.minecraft.item.Item;
import net.minecraft.util.math.MathHelper;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import appeng.api.util.AEPartLocation;
import appeng.client.render.textures.ParticleTextures;


@SideOnly( Side.CLIENT )
public class EnergyFx extends ParticleBreaking
{

	private final TextureAtlasSprite particleTextureIndex;

	private final int startBlkX;
	private final int startBlkY;
	private final int startBlkZ;

	public EnergyFx( final World par1World, final double par2, final double par4, final double par6, final Item par8Item )
	{
		super( par1World, par2, par4, par6, par8Item );
		this.particleGravity = 0;
		this.particleBlue = 1;
		this.particleGreen = 1;
		this.particleRed = 1;
		this.particleAlpha = 1.4f;
		this.particleScale = 3.5f;
		this.particleTextureIndex = ParticleTextures.BlockEnergyParticle;

		this.startBlkX = MathHelper.floor_double( this.posX );
		this.startBlkY = MathHelper.floor_double( this.posY );
		this.startBlkZ = MathHelper.floor_double( this.posZ );
	}

	@Override
	public int getFXLayer()
	{
		return 1;
	}

	@Override
	public void renderParticle( final VertexBuffer par1Tessellator, final Entity p_180434_2_, final float partialTicks, final float par3, final float par4, final float par5, final float par6, final float par7 )
	{
		final float f6 = this.particleTextureIndex.getMinU();
		final float f7 = this.particleTextureIndex.getMaxU();
		final float f8 = this.particleTextureIndex.getMinV();
		final float f9 = this.particleTextureIndex.getMaxV();
		final float f10 = 0.1F * this.particleScale;

		final float f11 = (float) ( this.prevPosX + ( this.posX - this.prevPosX ) * partialTicks - interpPosX );
		final float f12 = (float) ( this.prevPosY + ( this.posY - this.prevPosY ) * partialTicks - interpPosY );
		final float f13 = (float) ( this.prevPosZ + ( this.posZ - this.prevPosZ ) * partialTicks - interpPosZ );

		final int blkX = MathHelper.floor_double( this.posX );
		final int blkY = MathHelper.floor_double( this.posY );
		final int blkZ = MathHelper.floor_double( this.posZ );

		if( blkX == this.startBlkX && blkY == this.startBlkY && blkZ == this.startBlkZ )
		{
			int i = this.getBrightnessForRender(partialTicks);
			int j = i >> 16 & 65535;
			int k = i & 65535;

			final float f14 = 1.0F;
			par1Tessellator.pos( f11 - par3 * f10 - par6 * f10, f12 - par4 * f10, f13 - par5 * f10 - par7 * f10 ).tex( f7, f9 ).color( this.particleRed * f14, this.particleGreen * f14, this.particleBlue * f14, this.particleAlpha ).lightmap( j, k ).endVertex();
			par1Tessellator.pos( f11 - par3 * f10 + par6 * f10, f12 + par4 * f10, f13 - par5 * f10 + par7 * f10 ).tex( f7, f8 ).color( this.particleRed * f14, this.particleGreen * f14, this.particleBlue * f14, this.particleAlpha ).lightmap( j, k ).endVertex();
			par1Tessellator.pos( f11 + par3 * f10 + par6 * f10, f12 + par4 * f10, f13 + par5 * f10 + par7 * f10 ).tex( f6, f8 ).color( this.particleRed * f14, this.particleGreen * f14, this.particleBlue * f14, this.particleAlpha ).lightmap( j, k ).endVertex();
			par1Tessellator.pos( f11 + par3 * f10 - par6 * f10, f12 - par4 * f10, f13 + par5 * f10 - par7 * f10 ).tex( f6, f9 ).color( this.particleRed * f14, this.particleGreen * f14, this.particleBlue * f14, this.particleAlpha ).lightmap( j, k ).endVertex();
		}
	}

	public void fromItem( final AEPartLocation d )
	{
		this.posX += 0.2 * d.xOffset;
		this.posY += 0.2 * d.yOffset;
		this.posZ += 0.2 * d.zOffset;
		this.particleScale *= 0.8f;
	}

	@Override
	public void onUpdate()
	{
		this.prevPosX = this.posX;
		this.prevPosY = this.posY;
		this.prevPosZ = this.posZ;

		if( this.particleAge++ >= this.particleMaxAge )
		{
			this.setExpired();
		}

		this.motionY -= 0.04D * (double) this.particleGravity;
		this.moveEntity( this.motionX, this.motionY, this.motionZ );
		this.motionX *= 0.9800000190734863D;
		this.motionY *= 0.9800000190734863D;
		this.motionZ *= 0.9800000190734863D;

		this.particleScale *= 0.89f;
		this.particleAlpha *= 0.89f;
	}

	public void setMotionX( float motionX )
	{
		this.motionX = motionX;
	}

	public void setMotionY( float motionY )
	{
		this.motionY = motionY;
	}

	public void setMotionZ( float motionZ )
	{
		this.motionZ = motionZ;
	}
}