/**
  * Checks if the minecart is added to the world. If not, returns false and removes the minecart
  *
  * @param minecart to check (only checks if it is an EntityMinecart)
  * @return True if valid, False if not
  */
 public static boolean validateMinecart(net.minecraft.server.Entity minecart) {
   if (minecart instanceof EntityMinecart) {
     // could be a bugged minecart.
     // verify that it is not bugged
     if (!minecart.world.entityList.contains(minecart)) {
       // bugged minecart - kill it!
       minecart.dead = true;
       minecart.world.removeEntity(minecart);
       minecart.ah = MathUtil.locToChunk(minecart.locX);
       minecart.ai = MathUtil.locToChunk(minecart.locY);
       minecart.aj = MathUtil.locToChunk(minecart.locZ);
       if (minecart.world.chunkProvider.isChunkLoaded(minecart.ah, minecart.aj)) {
         minecart.world.getChunkAt(minecart.ah, minecart.aj).b(minecart);
       }
       return false;
     }
   }
   return true;
 }
 public void remove() {
   entity.dead = true;
 }