good nigths

i wanna make the zoombies drop mi custom seeds when dieded but it seems its dont wants to work

reading some guides i reach to this two methods but eithers works

 

  @EventHandler
    public void onEntityDrop(LivingDropsEvent event){
	  
	  
	  System.out.println("\nLivingDropsEvent");
	  
	if(event.entity instanceof EntityZombie){

		EntityZombie zom = (EntityZombie) event.entity;

		  int R = ((int) (Math.random() * 3)) ;
		  
		  Item tudrop = null;
		  
		  switch (R)
		  {
		  case 0: tudrop = MercenaryModItems.hierbaVerdeSemilla;
		  case 1: tudrop = MercenaryModItems.hierbaRojaSemilla;
		  case 2: tudrop = MercenaryModItems.hierbaAmarillaSemilla;
		  case 3: tudrop = MercenaryModItems.hierbaAzulSemilla;
		  }
		  
		  BlockPos bzom = zom.getPosition().add(0,1,0);
		  World bworld = zom.getEntityWorld();
		  
		  bworld.spawnEntityInWorld(new EntityItem(bworld, bzom.getX(), bzom.getY(), bzom.getZ(), new ItemStack(tudrop ,1,0)));

	}

	} 



  @EventHandler
    public void onEDeath(LivingDeathEvent   event)
    {
	  
	  System.out.println("\nLivingDeathEvent");
        //drops the item

	  if (event.entity instanceof EntityZombie) {
		  
		  EntityZombie zom = (EntityZombie) event.entity;
		  
		  System.out.println("\nZOMMMBIE");

		  int R = ((int) (Math.random() * 3)) ;
		  
		  Item tudrop = null;
		  
		  switch (R)
		  {
		  case 0: tudrop = MercenaryModItems.hierbaVerdeSemilla;
		  case 1: tudrop = MercenaryModItems.hierbaRojaSemilla;
		  case 2: tudrop = MercenaryModItems.hierbaAmarillaSemilla;
		  case 3: tudrop = MercenaryModItems.hierbaAzulSemilla;
		  }
		  
		  BlockPos bzom = zom.getPosition().add(0,1,0);
		  World bworld = zom.getEntityWorld();
		  
		  bworld.spawnEntityInWorld(new EntityItem(bworld, bzom.getX(), bzom.getY(), bzom.getZ(), new ItemStack(tudrop ,1,0)));

		   
	  }
	   

    }

 

some one can point wath i been doing wrong

 

thanks for reading

You have used @EventHandler instead of @SubscribeEvent, also have you registered your events?

eee

 

upss

 

Fixed

// Zombie drops
@SubscribeEvent
public void onEntityDrop(LivingDropsEvent event) {

	if (event.entity instanceof EntityZombie) {

		int R = ((int) (Math.random() * 100));

//5%
		if (R > 94) {
			event.drops.add(new EntityItem(event.entity.worldObj, event.entity.posX, event.entity.posY, event.entity.posZ, new ItemStack(MercenaryModItems.hierbaVerdeSemilla, 1)));
		}

//2%
		R = ((int) (Math.random() * 100));
		if (R > 98) {
			event.drops.add(new EntityItem(event.entity.worldObj, event.entity.posX, event.entity.posY, event.entity.posZ, new ItemStack(MercenaryModItems.hierbaRojaSemilla, 1)));
		}
//2%
		R = ((int) (Math.random() * 100));
		if (R > 98) {
			event.drops.add(new EntityItem(event.entity.worldObj, event.entity.posX, event.entity.posY, event.entity.posZ, new ItemStack(MercenaryModItems.hierbaAzulSemilla, 1)));
		}
//not for now
		R = ((int) (Math.random() * 100));
		if (R > 100) {
			event.drops.add(new EntityItem(event.entity.worldObj, event.entity.posX, event.entity.posY, event.entity.posZ, new ItemStack(MercenaryModItems.hierbaAmarillaSemilla, 1)));
		}

	}

}