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.client.renderer.Tessellator;
006    import net.minecraft.world.World;
007    
008    @SideOnly(Side.CLIENT)
009    public class EntityReddustFX extends EntityFX
010    {
011        float reddustParticleScale;
012    
013        public EntityReddustFX(World par1World, double par2, double par4, double par6, float par8, float par9, float par10)
014        {
015            this(par1World, par2, par4, par6, 1.0F, par8, par9, par10);
016        }
017    
018        public EntityReddustFX(World par1World, double par2, double par4, double par6, float par8, float par9, float par10, float par11)
019        {
020            super(par1World, par2, par4, par6, 0.0D, 0.0D, 0.0D);
021            this.motionX *= 0.10000000149011612D;
022            this.motionY *= 0.10000000149011612D;
023            this.motionZ *= 0.10000000149011612D;
024    
025            if (par9 == 0.0F)
026            {
027                par9 = 1.0F;
028            }
029    
030            float var12 = (float)Math.random() * 0.4F + 0.6F;
031            this.particleRed = ((float)(Math.random() * 0.20000000298023224D) + 0.8F) * par9 * var12;
032            this.particleGreen = ((float)(Math.random() * 0.20000000298023224D) + 0.8F) * par10 * var12;
033            this.particleBlue = ((float)(Math.random() * 0.20000000298023224D) + 0.8F) * par11 * var12;
034            this.particleScale *= 0.75F;
035            this.particleScale *= par8;
036            this.reddustParticleScale = this.particleScale;
037            this.particleMaxAge = (int)(8.0D / (Math.random() * 0.8D + 0.2D));
038            this.particleMaxAge = (int)((float)this.particleMaxAge * par8);
039            this.noClip = false;
040        }
041    
042        public void renderParticle(Tessellator par1Tessellator, float par2, float par3, float par4, float par5, float par6, float par7)
043        {
044            float var8 = ((float)this.particleAge + par2) / (float)this.particleMaxAge * 32.0F;
045    
046            if (var8 < 0.0F)
047            {
048                var8 = 0.0F;
049            }
050    
051            if (var8 > 1.0F)
052            {
053                var8 = 1.0F;
054            }
055    
056            this.particleScale = this.reddustParticleScale * var8;
057            super.renderParticle(par1Tessellator, par2, par3, par4, par5, par6, par7);
058        }
059    
060        /**
061         * Called to update the entity's position/logic.
062         */
063        public void onUpdate()
064        {
065            this.prevPosX = this.posX;
066            this.prevPosY = this.posY;
067            this.prevPosZ = this.posZ;
068    
069            if (this.particleAge++ >= this.particleMaxAge)
070            {
071                this.setDead();
072            }
073    
074            this.setParticleTextureIndex(7 - this.particleAge * 8 / this.particleMaxAge);
075            this.moveEntity(this.motionX, this.motionY, this.motionZ);
076    
077            if (this.posY == this.prevPosY)
078            {
079                this.motionX *= 1.1D;
080                this.motionZ *= 1.1D;
081            }
082    
083            this.motionX *= 0.9599999785423279D;
084            this.motionY *= 0.9599999785423279D;
085            this.motionZ *= 0.9599999785423279D;
086    
087            if (this.onGround)
088            {
089                this.motionX *= 0.699999988079071D;
090                this.motionZ *= 0.699999988079071D;
091            }
092        }
093    }