package net.minecraft.client.particle;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.entity.Entity;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.IIcon;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;

@SideOnly(Side.CLIENT)
public class EntityFX extends Entity
{
	protected int particleTextureIndexX;
	protected int particleTextureIndexY;
	protected float particleTextureJitterX;
	protected float particleTextureJitterY;
	protected int particleAge;
	protected int particleMaxAge;
	protected float particleScale;
	protected float particleGravity;
	protected float particleRed;
	protected float particleGreen;
	protected float particleBlue;
	protected float particleAlpha;
	protected IIcon particleIcon;
	public static double interpPosX;
	public static double interpPosY;
	public static double interpPosZ;
	private static final String __OBFID = "CL_00000914";

	protected EntityFX(World par1World, double par2, double par4, double par6)
	{
		super(par1World);
		this.particleAlpha = 1.0F;
		this.setSize(0.2F, 0.2F);
		this.yOffset = this.height / 2.0F;
		this.setPosition(par2, par4, par6);
		this.lastTickPosX = par2;
		this.lastTickPosY = par4;
		this.lastTickPosZ = par6;
		this.particleRed = this.particleGreen = this.particleBlue = 1.0F;
		this.particleTextureJitterX = this.rand.nextFloat() * 3.0F;
		this.particleTextureJitterY = this.rand.nextFloat() * 3.0F;
		this.particleScale = (this.rand.nextFloat() * 0.5F + 0.5F) * 2.0F;
		this.particleMaxAge = (int)(4.0F / (this.rand.nextFloat() * 0.9F + 0.1F));
		this.particleAge = 0;
	}

	public EntityFX(World par1World, double par2, double par4, double par6, double par8, double par10, double par12)
	{
		this(par1World, par2, par4, par6);
		this.motionX = par8 + (double)((float)(Math.random() * 2.0D - 1.0D) * 0.4F);
		this.motionY = par10 + (double)((float)(Math.random() * 2.0D - 1.0D) * 0.4F);
		this.motionZ = par12 + (double)((float)(Math.random() * 2.0D - 1.0D) * 0.4F);
		float f = (float)(Math.random() + Math.random() + 1.0D) * 0.15F;
		float f1 = MathHelper.sqrt_double(this.motionX * this.motionX + this.motionY * this.motionY + this.motionZ * this.motionZ);
		this.motionX = this.motionX / (double)f1 * (double)f * 0.4000000059604645D;
		this.motionY = this.motionY / (double)f1 * (double)f * 0.4000000059604645D + 0.10000000149011612D;
		this.motionZ = this.motionZ / (double)f1 * (double)f * 0.4000000059604645D;
	}

	public EntityFX multiplyVelocity(float par1)
	{
		this.motionX *= (double)par1;
		this.motionY = (this.motionY - 0.10000000149011612D) * (double)par1 + 0.10000000149011612D;
		this.motionZ *= (double)par1;
		return this;
	}

	public EntityFX multipleParticleScaleBy(float par1)
	{
		this.setSize(0.2F * par1, 0.2F * par1);
		this.particleScale *= par1;
		return this;
	}

	public void setRBGColorF(float par1, float par2, float par3)
	{
		this.particleRed = par1;
		this.particleGreen = par2;
		this.particleBlue = par3;
	}

	public void setAlphaF(float par1)
	{
		this.particleAlpha = par1;
	}

	public float getRedColorF()
	{
		return this.particleRed;
	}

	public float getGreenColorF()
	{
		return this.particleGreen;
	}

	public float getBlueColorF()
	{
		return this.particleBlue;
	}

	protected boolean canTriggerWalking()
	{
		return false;
	}

	protected void entityInit() {}

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

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

		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;

		if (this.onGround)
		{
			this.motionX *= 0.699999988079071D;
			this.motionZ *= 0.699999988079071D;
		}
	}

	public void renderParticle(Tessellator par1Tessellator, float par2, float par3, float par4, float par5, float par6, float par7)
	{
		float f6 = (float)this.particleTextureIndexX / 16.0F;
		float f7 = f6 + 0.0624375F;
		float f8 = (float)this.particleTextureIndexY / 16.0F;
		float f9 = f8 + 0.0624375F;
		float f10 = 0.1F * this.particleScale;

		if (this.particleIcon != null)
		{
			f6 = this.particleIcon.getMinU();
			f7 = this.particleIcon.getMaxU();
			f8 = this.particleIcon.getMinV();
			f9 = this.particleIcon.getMaxV();
		}

		float f11 = (float)(this.prevPosX + (this.posX - this.prevPosX) * (double)par2 - interpPosX);
		float f12 = (float)(this.prevPosY + (this.posY - this.prevPosY) * (double)par2 - interpPosY);
		float f13 = (float)(this.prevPosZ + (this.posZ - this.prevPosZ) * (double)par2 - interpPosZ);
		par1Tessellator.setColorRGBA_F(this.particleRed, this.particleGreen, this.particleBlue, this.particleAlpha);
		par1Tessellator.addVertexWithUV((double)(f11 - par3 * f10 - par6 * f10), (double)(f12 - par4 * f10), (double)(f13 - par5 * f10 - par7 * f10), (double)f7, (double)f9);
		par1Tessellator.addVertexWithUV((double)(f11 - par3 * f10 + par6 * f10), (double)(f12 + par4 * f10), (double)(f13 - par5 * f10 + par7 * f10), (double)f7, (double)f8);
		par1Tessellator.addVertexWithUV((double)(f11 + par3 * f10 + par6 * f10), (double)(f12 + par4 * f10), (double)(f13 + par5 * f10 + par7 * f10), (double)f6, (double)f8);
		par1Tessellator.addVertexWithUV((double)(f11 + par3 * f10 - par6 * f10), (double)(f12 - par4 * f10), (double)(f13 + par5 * f10 - par7 * f10), (double)f6, (double)f9);
	}

	public int getFXLayer()
	{
		return 0;
	}

	public void writeEntityToNBT(NBTTagCompound par1NBTTagCompound) {}

	public void readEntityFromNBT(NBTTagCompound par1NBTTagCompound) {}

	public void setParticleIcon(IIcon par1Icon)
	{
		if (this.getFXLayer() == 1)
		{
			this.particleIcon = par1Icon;
		}
		else
		{
			if (this.getFXLayer() != 2)
			{
				throw new RuntimeException("Invalid call to Particle.setTex, use coordinate methods");
			}

			this.particleIcon = par1Icon;
		}
	}

	public void setParticleTextureIndex(int par1)
	{
		if (this.getFXLayer() != 0)
		{
			throw new RuntimeException("Invalid call to Particle.setMiscTex");
		}
		else
		{
			this.particleTextureIndexX = par1 % 16;
			this.particleTextureIndexY = par1 / 16;
		}
	}

	public void nextTextureIndexX()
	{
		++this.particleTextureIndexX;
	}

	public boolean canAttackWithItem()
	{
		return false;
	}

	public String toString()
	{
		return this.getClass().getSimpleName() + ", Pos (" + this.posX + "," + this.posY + "," + this.posZ + "), RGBA (" + this.particleRed + "," + this.particleGreen + "," + this.particleBlue + "," + this.particleAlpha + "), Age " + this.particleAge;
	}
}