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 EntitySmokeFX extends EntityFX
008    {
009        float smokeParticleScale;
010    
011        public EntitySmokeFX(World par1World, double par2, double par4, double par6, double par8, double par10, double par12)
012        {
013            this(par1World, par2, par4, par6, par8, par10, par12, 1.0F);
014        }
015    
016        public EntitySmokeFX(World par1World, double par2, double par4, double par6, double par8, double par10, double par12, float par14)
017        {
018            super(par1World, par2, par4, par6, 0.0D, 0.0D, 0.0D);
019            this.motionX *= 0.10000000149011612D;
020            this.motionY *= 0.10000000149011612D;
021            this.motionZ *= 0.10000000149011612D;
022            this.motionX += par8;
023            this.motionY += par10;
024            this.motionZ += par12;
025            this.particleRed = this.particleGreen = this.particleBlue = (float)(Math.random() * 0.30000001192092896D);
026            this.particleScale *= 0.75F;
027            this.particleScale *= par14;
028            this.smokeParticleScale = this.particleScale;
029            this.particleMaxAge = (int)(8.0D / (Math.random() * 0.8D + 0.2D));
030            this.particleMaxAge = (int)((float)this.particleMaxAge * par14);
031            this.noClip = false;
032        }
033    
034        public void renderParticle(Tessellator par1Tessellator, float par2, float par3, float par4, float par5, float par6, float par7)
035        {
036            float var8 = ((float)this.particleAge + par2) / (float)this.particleMaxAge * 32.0F;
037    
038            if (var8 < 0.0F)
039            {
040                var8 = 0.0F;
041            }
042    
043            if (var8 > 1.0F)
044            {
045                var8 = 1.0F;
046            }
047    
048            this.particleScale = this.smokeParticleScale * var8;
049            super.renderParticle(par1Tessellator, par2, par3, par4, par5, par6, par7);
050        }
051    
052        /**
053         * Called to update the entity's position/logic.
054         */
055        public void onUpdate()
056        {
057            this.prevPosX = this.posX;
058            this.prevPosY = this.posY;
059            this.prevPosZ = this.posZ;
060    
061            if (this.particleAge++ >= this.particleMaxAge)
062            {
063                this.setDead();
064            }
065    
066            this.setParticleTextureIndex(7 - this.particleAge * 8 / this.particleMaxAge);
067            this.motionY += 0.004D;
068            this.moveEntity(this.motionX, this.motionY, this.motionZ);
069    
070            if (this.posY == this.prevPosY)
071            {
072                this.motionX *= 1.1D;
073                this.motionZ *= 1.1D;
074            }
075    
076            this.motionX *= 0.9599999785423279D;
077            this.motionY *= 0.9599999785423279D;
078            this.motionZ *= 0.9599999785423279D;
079    
080            if (this.onGround)
081            {
082                this.motionX *= 0.699999988079071D;
083                this.motionZ *= 0.699999988079071D;
084            }
085        }
086    }