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.block.BlockFluid;
006    import net.minecraft.block.material.Material;
007    import net.minecraft.util.MathHelper;
008    import net.minecraft.world.World;
009    
010    @SideOnly(Side.CLIENT)
011    public class EntityRainFX extends EntityFX
012    {
013        public EntityRainFX(World par1World, double par2, double par4, double par6)
014        {
015            super(par1World, par2, par4, par6, 0.0D, 0.0D, 0.0D);
016            this.motionX *= 0.30000001192092896D;
017            this.motionY = (double)((float)Math.random() * 0.2F + 0.1F);
018            this.motionZ *= 0.30000001192092896D;
019            this.particleRed = 1.0F;
020            this.particleGreen = 1.0F;
021            this.particleBlue = 1.0F;
022            this.setParticleTextureIndex(19 + this.rand.nextInt(4));
023            this.setSize(0.01F, 0.01F);
024            this.particleGravity = 0.06F;
025            this.particleMaxAge = (int)(8.0D / (Math.random() * 0.8D + 0.2D));
026        }
027    
028        /**
029         * Called to update the entity's position/logic.
030         */
031        public void onUpdate()
032        {
033            this.prevPosX = this.posX;
034            this.prevPosY = this.posY;
035            this.prevPosZ = this.posZ;
036            this.motionY -= (double)this.particleGravity;
037            this.moveEntity(this.motionX, this.motionY, this.motionZ);
038            this.motionX *= 0.9800000190734863D;
039            this.motionY *= 0.9800000190734863D;
040            this.motionZ *= 0.9800000190734863D;
041    
042            if (this.particleMaxAge-- <= 0)
043            {
044                this.setDead();
045            }
046    
047            if (this.onGround)
048            {
049                if (Math.random() < 0.5D)
050                {
051                    this.setDead();
052                }
053    
054                this.motionX *= 0.699999988079071D;
055                this.motionZ *= 0.699999988079071D;
056            }
057    
058            Material var1 = this.worldObj.getBlockMaterial(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.posY), MathHelper.floor_double(this.posZ));
059    
060            if (var1.isLiquid() || var1.isSolid())
061            {
062                double var2 = (double)((float)(MathHelper.floor_double(this.posY) + 1) - BlockFluid.getFluidHeightPercent(this.worldObj.getBlockMetadata(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.posY), MathHelper.floor_double(this.posZ))));
063    
064                if (this.posY < var2)
065                {
066                    this.setDead();
067                }
068            }
069        }
070    }