001    package net.minecraft.client.particle;
002    
003    import cpw.mods.fml.relauncher.Side;
004    import cpw.mods.fml.relauncher.SideOnly;
005    import net.minecraft.block.material.Material;
006    import net.minecraft.util.MathHelper;
007    import net.minecraft.world.World;
008    
009    @SideOnly(Side.CLIENT)
010    public class EntityBubbleFX extends EntityFX
011    {
012        public EntityBubbleFX(World par1World, double par2, double par4, double par6, double par8, double par10, double par12)
013        {
014            super(par1World, par2, par4, par6, par8, par10, par12);
015            this.particleRed = 1.0F;
016            this.particleGreen = 1.0F;
017            this.particleBlue = 1.0F;
018            this.setParticleTextureIndex(32);
019            this.setSize(0.02F, 0.02F);
020            this.particleScale *= this.rand.nextFloat() * 0.6F + 0.2F;
021            this.motionX = par8 * 0.20000000298023224D + (double)((float)(Math.random() * 2.0D - 1.0D) * 0.02F);
022            this.motionY = par10 * 0.20000000298023224D + (double)((float)(Math.random() * 2.0D - 1.0D) * 0.02F);
023            this.motionZ = par12 * 0.20000000298023224D + (double)((float)(Math.random() * 2.0D - 1.0D) * 0.02F);
024            this.particleMaxAge = (int)(8.0D / (Math.random() * 0.8D + 0.2D));
025        }
026    
027        /**
028         * Called to update the entity's position/logic.
029         */
030        public void onUpdate()
031        {
032            this.prevPosX = this.posX;
033            this.prevPosY = this.posY;
034            this.prevPosZ = this.posZ;
035            this.motionY += 0.002D;
036            this.moveEntity(this.motionX, this.motionY, this.motionZ);
037            this.motionX *= 0.8500000238418579D;
038            this.motionY *= 0.8500000238418579D;
039            this.motionZ *= 0.8500000238418579D;
040    
041            if (this.worldObj.getBlockMaterial(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.posY), MathHelper.floor_double(this.posZ)) != Material.water)
042            {
043                this.setDead();
044            }
045    
046            if (this.particleMaxAge-- <= 0)
047            {
048                this.setDead();
049            }
050        }
051    }