EntityBubbleFX.java

package net.minecraft.client.particle;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.block.material.Material;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;

@SideOnly(Side.CLIENT)
public class EntityBubbleFX extends EntityFX
{
    public EntityBubbleFX(World par1World, double par2, double par4, double par6, double par8, double par10, double par12)
    {
        super(par1World, par2, par4, par6, par8, par10, par12);
        this.particleRed = 1.0F;
        this.particleGreen = 1.0F;
        this.particleBlue = 1.0F;
        this.setParticleTextureIndex(32);
        this.setSize(0.02F, 0.02F);
        this.particleScale *= this.rand.nextFloat() * 0.6F + 0.2F;
        this.motionX = par8 * 0.20000000298023224D + (double)((float)(Math.random() * 2.0D - 1.0D) * 0.02F);
        this.motionY = par10 * 0.20000000298023224D + (double)((float)(Math.random() * 2.0D - 1.0D) * 0.02F);
        this.motionZ = par12 * 0.20000000298023224D + (double)((float)(Math.random() * 2.0D - 1.0D) * 0.02F);
        this.particleMaxAge = (int)(8.0D / (Math.random() * 0.8D + 0.2D));
    }

    /**
     * Called to update the entity's position/logic.
     */
    public void onUpdate()
    {
        this.prevPosX = this.posX;
        this.prevPosY = this.posY;
        this.prevPosZ = this.posZ;
        this.motionY += 0.002D;
        this.moveEntity(this.motionX, this.motionY, this.motionZ);
        this.motionX *= 0.8500000238418579D;
        this.motionY *= 0.8500000238418579D;
        this.motionZ *= 0.8500000238418579D;

        if (this.worldObj.getBlockMaterial(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.posY), MathHelper.floor_double(this.posZ)) != Material.water)
        {
            this.setDead();
        }

        if (this.particleMaxAge-- <= 0)
        {
            this.setDead();
        }
    }
}