    001package net.minecraft.client.particle;
    002
    003import cpw.mods.fml.relauncher.Side;
    004import cpw.mods.fml.relauncher.SideOnly;
    005import net.minecraft.client.renderer.Tessellator;
    006import net.minecraft.world.World;
    007
    008@SideOnly(Side.CLIENT)
    009public class EntitySmokeFX extends EntityFX
    010{
    011    float smokeParticleScale;
    012
    013    public EntitySmokeFX(World par1World, double par2, double par4, double par6, double par8, double par10, double par12)
    014    {
    015        this(par1World, par2, par4, par6, par8, par10, par12, 1.0F);
    016    }
    017
    018    public EntitySmokeFX(World par1World, double par2, double par4, double par6, double par8, double par10, double par12, float par14)
    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        this.motionX += par8;
    025        this.motionY += par10;
    026        this.motionZ += par12;
    027        this.particleRed = this.particleGreen = this.particleBlue = (float)(Math.random() * 0.30000001192092896D);
    028        this.particleScale *= 0.75F;
    029        this.particleScale *= par14;
    030        this.smokeParticleScale = this.particleScale;
    031        this.particleMaxAge = (int)(8.0D / (Math.random() * 0.8D + 0.2D));
    032        this.particleMaxAge = (int)((float)this.particleMaxAge * par14);
    033        this.noClip = false;
    034    }
    035
    036    public void renderParticle(Tessellator par1Tessellator, float par2, float par3, float par4, float par5, float par6, float par7)
    037    {
    038        float var8 = ((float)this.particleAge + par2) / (float)this.particleMaxAge * 32.0F;
    039
    040        if (var8 < 0.0F)
    041        {
    042            var8 = 0.0F;
    043        }
    044
    045        if (var8 > 1.0F)
    046        {
    047            var8 = 1.0F;
    048        }
    049
    050        this.particleScale = this.smokeParticleScale * var8;
    051        super.renderParticle(par1Tessellator, par2, par3, par4, par5, par6, par7);
    052    }
    053
    054    /**
    055     * Called to update the entity's position/logic.
    056     */
    057    public void onUpdate()
    058    {
    059        this.prevPosX = this.posX;
    060        this.prevPosY = this.posY;
    061        this.prevPosZ = this.posZ;
    062
    063        if (this.particleAge++ >= this.particleMaxAge)
    064        {
    065            this.setDead();
    066        }
    067
    068        this.setParticleTextureIndex(7 - this.particleAge * 8 / this.particleMaxAge);
    069        this.motionY += 0.004D;
    070        this.moveEntity(this.motionX, this.motionY, this.motionZ);
    071
    072        if (this.posY == this.prevPosY)
    073        {
    074            this.motionX *= 1.1D;
    075            this.motionZ *= 1.1D;
    076        }
    077
    078        this.motionX *= 0.9599999785423279D;
    079        this.motionY *= 0.9599999785423279D;
    080        this.motionZ *= 0.9599999785423279D;
    081
    082        if (this.onGround)
    083        {
    084            this.motionX *= 0.699999988079071D;
    085            this.motionZ *= 0.699999988079071D;
    086        }
    087    }
    088}