content: package net.minecraft.client.particle;
  
  import net.minecraft.block.BlockLiquid;
  import net.minecraft.block.material.Material;
  import net.minecraft.block.state.IBlockState;
  import net.minecraft.util.BlockPos;
  import net.minecraft.util.EnumParticleTypes;
  import net.minecraft.util.MathHelper;
  import net.minecraft.world.World;
  
  public class EntityDropParticleFX extends EntityFX {
      private final Material materialType;
      private int bobTimer;
  
      protected EntityDropParticleFX(World worldIn, double xCoordIn, double yCoordIn, double zCoordIn, Material p_i1203_8_) {
          super(worldIn, xCoordIn, yCoordIn, zCoordIn, 0.0D, 0.0D, 0.0D);
          this.motionX = this.motionY = this.motionZ = 0.0D;
  
          if (p_i1203_8_ == Material.water) {
              this.particleRed = 0.0F;
              this.particleGreen = 0.0F;
              this.particleBlue = 1.0F;
          } else {
              this.particleRed = 1.0F;
              this.particleGreen = 0.0F;
              this.particleBlue = 0.0F;
          }
  
          this.setParticleTextureIndex(113);
          this.setSize(0.01F, 0.01F);
          this.particleGravity = 0.06F;
          this.materialType = p_i1203_8_;
          this.bobTimer = 40;
          this.particleMaxAge = (int) (64.0D / (Math.random() * 0.8D + 0.2D));
          this.motionX = this.motionY = this.motionZ = 0.0D;
      }
  
      public int getBrightnessForRender(float partialTicks) {
          return this.materialType == Material.water ? super.getBrightnessForRender(partialTicks) : 257;
      }
  
      public float getBrightness(float partialTicks) {
          return this.materialType == Material.water ? super.getBrightness(partialTicks) : 1.0F;
      }
  
      public void onUpdate() {
          this.prevPosX = this.posX;
          this.prevPosY = this.posY;
          this.prevPosZ = this.posZ;
  
          if (this.materialType == Material.water) {
              this.particleRed = 0.2F;
              this.particleGreen = 0.3F;
              this.particleBlue = 1.0F;
          } else {
              this.particleRed = 1.0F;
              this.particleGreen = 16.0F / (float) (40 - this.bobTimer + 16);
              this.particleBlue = 4.0F / (float) (40 - this.bobTimer + 8);
          }
  
          this.motionY -= this.particleGravity;
  
          if (this.bobTimer-- > 0) {
              this.motionX *= 0.02D;
              this.motionY *= 0.02D;
              this.motionZ *= 0.02D;
              this.setParticleTextureIndex(113);
          } else {
              this.setParticleTextureIndex(112);
          }
  
          this.moveEntity(this.motionX, this.motionY, this.motionZ);
          this.motionX *= 0.9800000190734863D;
          this.motionY *= 0.9800000190734863D;
          this.motionZ *= 0.9800000190734863D;
  
          if (this.particleMaxAge-- <= 0) {
              this.setDead();
          }
  
          if (this.onGround) {
              if (this.materialType == Material.water) {
                  this.setDead();
                  this.worldObj.spawnParticle(EnumParticleTypes.WATER_SPLASH, this.posX, this.posY, this.posZ, 0.0D, 0.0D, 0.0D);
              } else {
                  this.setParticleTextureIndex(114);
              }
  
              this.motionX *= 0.699999988079071D;
              this.motionZ *= 0.699999988079071D;
          }
  
          BlockPos blockpos = new BlockPos(this);
          IBlockState iblockstate = this.worldObj.getBlockState(blockpos);
          Material material = iblockstate.getBlock().getMaterial();
  
          if (material.isLiquid() || material.isSolid()) {
              double d0 = 0.0D;
  
              if (iblockstate.getBlock() instanceof BlockLiquid) {
                  d0 = BlockLiquid.getLiquidHeightPercent(iblockstate.getValue(BlockLiquid.LEVEL).intValue());
              }
  
              double d1 = (double) (MathHelper.floor_double(this.posY) + 1) - d0;
  
              if (this.posY < d1) {
                  this.setDead();
              }
          }
      }
  
      public static class LavaFactory 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 EntityDropParticleFX(worldIn, xCoordIn, yCoordIn, zCoordIn, Material.lava);
          }
      }
  
      public static class WaterFactory 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 EntityDropParticleFX(worldIn, xCoordIn, yCoordIn, zCoordIn, Material.water);
          }
      }
  }
  