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 EntityEnchantmentTableParticleFX extends EntityFX
009    {
010        private float field_70565_a;
011        private double field_70568_aq;
012        private double field_70567_ar;
013        private double field_70566_as;
014    
015        public EntityEnchantmentTableParticleFX(World par1World, double par2, double par4, double par6, double par8, double par10, double par12)
016        {
017            super(par1World, par2, par4, par6, par8, par10, par12);
018            this.motionX = par8;
019            this.motionY = par10;
020            this.motionZ = par12;
021            this.field_70568_aq = this.posX = par2;
022            this.field_70567_ar = this.posY = par4;
023            this.field_70566_as = this.posZ = par6;
024            float var14 = this.rand.nextFloat() * 0.6F + 0.4F;
025            this.field_70565_a = this.particleScale = this.rand.nextFloat() * 0.5F + 0.2F;
026            this.particleRed = this.particleGreen = this.particleBlue = 1.0F * var14;
027            this.particleGreen *= 0.9F;
028            this.particleRed *= 0.9F;
029            this.particleMaxAge = (int)(Math.random() * 10.0D) + 30;
030            this.noClip = true;
031            this.setParticleTextureIndex((int)(Math.random() * 26.0D + 1.0D + 224.0D));
032        }
033    
034        public int getBrightnessForRender(float par1)
035        {
036            int var2 = super.getBrightnessForRender(par1);
037            float var3 = (float)this.particleAge / (float)this.particleMaxAge;
038            var3 *= var3;
039            var3 *= var3;
040            int var4 = var2 & 255;
041            int var5 = var2 >> 16 & 255;
042            var5 += (int)(var3 * 15.0F * 16.0F);
043    
044            if (var5 > 240)
045            {
046                var5 = 240;
047            }
048    
049            return var4 | var5 << 16;
050        }
051    
052        /**
053         * Gets how bright this entity is.
054         */
055        public float getBrightness(float par1)
056        {
057            float var2 = super.getBrightness(par1);
058            float var3 = (float)this.particleAge / (float)this.particleMaxAge;
059            var3 *= var3;
060            var3 *= var3;
061            return var2 * (1.0F - var3) + var3;
062        }
063    
064        /**
065         * Called to update the entity's position/logic.
066         */
067        public void onUpdate()
068        {
069            this.prevPosX = this.posX;
070            this.prevPosY = this.posY;
071            this.prevPosZ = this.posZ;
072            float var1 = (float)this.particleAge / (float)this.particleMaxAge;
073            var1 = 1.0F - var1;
074            float var2 = 1.0F - var1;
075            var2 *= var2;
076            var2 *= var2;
077            this.posX = this.field_70568_aq + this.motionX * (double)var1;
078            this.posY = this.field_70567_ar + this.motionY * (double)var1 - (double)(var2 * 1.2F);
079            this.posZ = this.field_70566_as + this.motionZ * (double)var1;
080    
081            if (this.particleAge++ >= this.particleMaxAge)
082            {
083                this.setDead();
084            }
085        }
086    }