package net.minecraft.client.gui;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import java.util.Random;
@SideOnly(Side.CLIENT)
public class Particle
{
private static Random rand = new Random();
public double posX;
public double posY;
public double prevPosX;
public double prevPosY;
public double velocityX;
public double velocityY;
public double accelScale;
public boolean isDead;
public int timeTick;
public int timeLimit;
public double tintRed;
public double tintGreen;
public double tintBlue;
public double tintAlpha;
public double prevTintRed;
public double prevTintGreen;
public double prevTintBlue;
public double prevTintAlpha;
public void update(GuiParticle par1GuiParticle)
{
this.posX += this.velocityX;
this.posY += this.velocityY;
this.velocityX *= this.accelScale;
this.velocityY *= this.accelScale;
this.velocityY += 0.1D;
if (++this.timeTick > this.timeLimit)
{
this.setDead();
}
this.tintAlpha = 2.0D - (double)this.timeTick / (double)this.timeLimit * 2.0D;
if (this.tintAlpha > 1.0D)
{
this.tintAlpha = 1.0D;
}
this.tintAlpha *= this.tintAlpha;
this.tintAlpha *= 0.5D;
}
public void preUpdate()
{
this.prevTintRed = this.tintRed;
this.prevTintGreen = this.tintGreen;
this.prevTintBlue = this.tintBlue;
this.prevTintAlpha = this.tintAlpha;
this.prevPosX = this.posX;
this.prevPosY = this.posY;
}
public void setDead()
{
this.isDead = true;
}
}