content: package net.minecraft.client.particle;
  
  import net.minecraft.client.renderer.WorldRenderer;
  import net.minecraft.entity.Entity;
  import net.minecraft.util.MathHelper;
  import net.minecraft.world.World;
  
  public class EntityFlameFX extends EntityFX {
      private final float flameScale;
  
      protected EntityFlameFX(World worldIn, double xCoordIn, double yCoordIn, double zCoordIn, double xSpeedIn, double ySpeedIn, double zSpeedIn) {
          super(worldIn, xCoordIn, yCoordIn, zCoordIn, xSpeedIn, ySpeedIn, zSpeedIn);
          this.motionX = this.motionX * 0.009999999776482582D + xSpeedIn;
          this.motionY = this.motionY * 0.009999999776482582D + ySpeedIn;
          this.motionZ = this.motionZ * 0.009999999776482582D + zSpeedIn;
          this.posX += (this.rand.nextFloat() - this.rand.nextFloat()) * 0.05F;
          this.posY += (this.rand.nextFloat() - this.rand.nextFloat()) * 0.05F;
          this.posZ += (this.rand.nextFloat() - this.rand.nextFloat()) * 0.05F;
          this.flameScale = this.particleScale;
          this.particleRed = this.particleGreen = this.particleBlue = 1.0F;
          this.particleMaxAge = (int) (8.0D / (Math.random() * 0.8D + 0.2D)) + 4;
          this.noClip = true;
          this.setParticleTextureIndex(48);
      }
  
      public void renderParticle(WorldRenderer worldRendererIn, Entity entityIn, float partialTicks, float rotationX, float rotationZ, float rotationYZ, float rotationXY, float rotationXZ) {
          float f = ((float) this.particleAge + partialTicks) / (float) this.particleMaxAge;
          this.particleScale = this.flameScale * (1.0F - f * f * 0.5F);
          super.renderParticle(worldRendererIn, entityIn, partialTicks, rotationX, rotationZ, rotationYZ, rotationXY, rotationXZ);
      }
  
      public int getBrightnessForRender(float partialTicks) {
          float f = ((float) this.particleAge + partialTicks) / (float) this.particleMaxAge;
          f = MathHelper.clamp_float(f, 0.0F, 1.0F);
          int i = super.getBrightnessForRender(partialTicks);
          int j = i & 255;
          int k = i >> 16 & 255;
          j = j + (int) (f * 15.0F * 16.0F);
  
          if (j > 240) {
              j = 240;
          }
  
          return j | k << 16;
      }
  
      public float getBrightness(float partialTicks) {
          float f = ((float) this.particleAge + partialTicks) / (float) this.particleMaxAge;
          f = MathHelper.clamp_float(f, 0.0F, 1.0F);
          float f1 = super.getBrightness(partialTicks);
          return f1 * f + (1.0F - f);
      }
  
      public void onUpdate() {
          this.prevPosX = this.posX;
          this.prevPosY = this.posY;
          this.prevPosZ = this.posZ;
  
          if (this.particleAge++ >= this.particleMaxAge) {
              this.setDead();
          }
  
          this.moveEntity(this.motionX, this.motionY, this.motionZ);
          this.motionX *= 0.9599999785423279D;
          this.motionY *= 0.9599999785423279D;
          this.motionZ *= 0.9599999785423279D;
  
          if (this.onGround) {
              this.motionX *= 0.699999988079071D;
              this.motionZ *= 0.699999988079071D;
          }
      }
  
      public static class Factory implements IParticleFactory {
          public EntityFX getEntityFX(int particleID, World worldIn, double xCoordIn, double yCoordIn, double zCoordIn, double xSpeedIn, double ySpeedIn, double zSpeedIn, int... p_178902_15_) {
              return new EntityFlameFX(worldIn, xCoordIn, yCoordIn, zCoordIn, xSpeedIn, ySpeedIn, zSpeedIn);
          }
      }
  }
  