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;
  
  import java.util.Random;
  
  public class EntitySpellParticleFX extends EntityFX {
      private static final Random RANDOM = new Random();
      private int baseSpellTextureIndex = 128;
  
      protected EntitySpellParticleFX(World worldIn, double xCoordIn, double yCoordIn, double zCoordIn, double p_i1229_8_, double p_i1229_10_, double p_i1229_12_) {
          super(worldIn, xCoordIn, yCoordIn, zCoordIn, 0.5D - RANDOM.nextDouble(), p_i1229_10_, 0.5D - RANDOM.nextDouble());
          this.motionY *= 0.20000000298023224D;
  
          if (p_i1229_8_ == 0.0D && p_i1229_12_ == 0.0D) {
              this.motionX *= 0.10000000149011612D;
              this.motionZ *= 0.10000000149011612D;
          }
  
          this.particleScale *= 0.75F;
          this.particleMaxAge = (int) (8.0D / (Math.random() * 0.8D + 0.2D));
          this.noClip = false;
      }
  
      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 * 32.0F;
          f = MathHelper.clamp_float(f, 0.0F, 1.0F);
          super.renderParticle(worldRendererIn, entityIn, partialTicks, rotationX, rotationZ, rotationYZ, rotationXY, rotationXZ);
      }
  
      public void onUpdate() {
          this.prevPosX = this.posX;
          this.prevPosY = this.posY;
          this.prevPosZ = this.posZ;
  
          if (this.particleAge++ >= this.particleMaxAge) {
              this.setDead();
          }
  
          this.setParticleTextureIndex(this.baseSpellTextureIndex + (7 - this.particleAge * 8 / this.particleMaxAge));
          this.motionY += 0.004D;
          this.moveEntity(this.motionX, this.motionY, this.motionZ);
  
          if (this.posY == this.prevPosY) {
              this.motionX *= 1.1D;
              this.motionZ *= 1.1D;
          }
  
          this.motionX *= 0.9599999785423279D;
          this.motionY *= 0.9599999785423279D;
          this.motionZ *= 0.9599999785423279D;
  
          if (this.onGround) {
              this.motionX *= 0.699999988079071D;
              this.motionZ *= 0.699999988079071D;
          }
      }
  
      public void setBaseSpellTextureIndex(int baseSpellTextureIndexIn) {
          this.baseSpellTextureIndex = baseSpellTextureIndexIn;
      }
  
      public static class AmbientMobFactory 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_) {
              EntityFX entityfx = new EntitySpellParticleFX(worldIn, xCoordIn, yCoordIn, zCoordIn, xSpeedIn, ySpeedIn, zSpeedIn);
              entityfx.setAlphaF(0.15F);
              entityfx.setRBGColorF((float) xSpeedIn, (float) ySpeedIn, (float) zSpeedIn);
              return entityfx;
          }
      }
  
      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 EntitySpellParticleFX(worldIn, xCoordIn, yCoordIn, zCoordIn, xSpeedIn, ySpeedIn, zSpeedIn);
          }
      }
  
      public static class InstantFactory 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_) {
              EntityFX entityfx = new EntitySpellParticleFX(worldIn, xCoordIn, yCoordIn, zCoordIn, xSpeedIn, ySpeedIn, zSpeedIn);
              ((EntitySpellParticleFX) entityfx).setBaseSpellTextureIndex(144);
              return entityfx;
          }
      }
  
      public static class MobFactory 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_) {
              EntityFX entityfx = new EntitySpellParticleFX(worldIn, xCoordIn, yCoordIn, zCoordIn, xSpeedIn, ySpeedIn, zSpeedIn);
              entityfx.setRBGColorF((float) xSpeedIn, (float) ySpeedIn, (float) zSpeedIn);
              return entityfx;
          }
      }
  
      public static class WitchFactory 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_) {
              EntityFX entityfx = new EntitySpellParticleFX(worldIn, xCoordIn, yCoordIn, zCoordIn, xSpeedIn, ySpeedIn, zSpeedIn);
              ((EntitySpellParticleFX) entityfx).setBaseSpellTextureIndex(144);
              float f = worldIn.rand.nextFloat() * 0.5F + 0.35F;
              entityfx.setRBGColorF(f, 0.0F * f, f);
              return entityfx;
          }
      }
  }
  