001    package net.minecraft.src;
002    
003    import cpw.mods.fml.common.Side;
004    import cpw.mods.fml.common.asm.SideOnly;
005    
006    @SideOnly(Side.CLIENT)
007    public class EntitySpellParticleFX extends EntityFX
008    {
009        private int field_70590_a = 128;
010    
011        public EntitySpellParticleFX(World par1World, double par2, double par4, double par6, double par8, double par10, double par12)
012        {
013            super(par1World, par2, par4, par6, par8, par10, par12);
014            this.motionY *= 0.20000000298023224D;
015    
016            if (par8 == 0.0D && par12 == 0.0D)
017            {
018                this.motionX *= 0.10000000149011612D;
019                this.motionZ *= 0.10000000149011612D;
020            }
021    
022            this.particleScale *= 0.75F;
023            this.particleMaxAge = (int)(8.0D / (Math.random() * 0.8D + 0.2D));
024            this.noClip = false;
025        }
026    
027        public void renderParticle(Tessellator par1Tessellator, float par2, float par3, float par4, float par5, float par6, float par7)
028        {
029            float var8 = ((float)this.particleAge + par2) / (float)this.particleMaxAge * 32.0F;
030    
031            if (var8 < 0.0F)
032            {
033                var8 = 0.0F;
034            }
035    
036            if (var8 > 1.0F)
037            {
038                var8 = 1.0F;
039            }
040    
041            super.renderParticle(par1Tessellator, par2, par3, par4, par5, par6, par7);
042        }
043    
044        /**
045         * Called to update the entity's position/logic.
046         */
047        public void onUpdate()
048        {
049            this.prevPosX = this.posX;
050            this.prevPosY = this.posY;
051            this.prevPosZ = this.posZ;
052    
053            if (this.particleAge++ >= this.particleMaxAge)
054            {
055                this.setDead();
056            }
057    
058            this.setParticleTextureIndex(this.field_70590_a + (7 - this.particleAge * 8 / this.particleMaxAge));
059            this.motionY += 0.004D;
060            this.moveEntity(this.motionX, this.motionY, this.motionZ);
061    
062            if (this.posY == this.prevPosY)
063            {
064                this.motionX *= 1.1D;
065                this.motionZ *= 1.1D;
066            }
067    
068            this.motionX *= 0.9599999785423279D;
069            this.motionY *= 0.9599999785423279D;
070            this.motionZ *= 0.9599999785423279D;
071    
072            if (this.onGround)
073            {
074                this.motionX *= 0.699999988079071D;
075                this.motionZ *= 0.699999988079071D;
076            }
077        }
078    
079        public void func_70589_b(int par1)
080        {
081            this.field_70590_a = par1;
082        }
083    }