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.world.World;
006    
007    @SideOnly(Side.CLIENT)
008    public class EntityAuraFX extends EntityFX
009    {
010        public EntityAuraFX(World par1World, double par2, double par4, double par6, double par8, double par10, double par12)
011        {
012            super(par1World, par2, par4, par6, par8, par10, par12);
013            float var14 = this.rand.nextFloat() * 0.1F + 0.2F;
014            this.particleRed = var14;
015            this.particleGreen = var14;
016            this.particleBlue = var14;
017            this.setParticleTextureIndex(0);
018            this.setSize(0.02F, 0.02F);
019            this.particleScale *= this.rand.nextFloat() * 0.6F + 0.5F;
020            this.motionX *= 0.019999999552965164D;
021            this.motionY *= 0.019999999552965164D;
022            this.motionZ *= 0.019999999552965164D;
023            this.particleMaxAge = (int)(20.0D / (Math.random() * 0.8D + 0.2D));
024            this.noClip = true;
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.moveEntity(this.motionX, this.motionY, this.motionZ);
036            this.motionX *= 0.99D;
037            this.motionY *= 0.99D;
038            this.motionZ *= 0.99D;
039    
040            if (this.particleMaxAge-- <= 0)
041            {
042                this.setDead();
043            }
044        }
045    }