@EventHandler
    public void onDamage(EntityDamageByEntityEvent ev) {
        if ((ev.getDamager() instanceof Projectile)) {
            Projectile bullit = (Projectile)ev.getDamager();
            if ((bullit.getShooter() instanceof Player && ev.getEntity() instanceof Player)) {
              Player pl = (Player)ev.getEntity();
              Player to = (Player)bullit.getShooter();
              String toPlayer = "";
              if(pl.getHealth()%2 != 0) {
                  for(int i = 0; i < (pl.getHealth()-1)/2; i++) {
                      toPlayer = toPlayer + "❤";
                  }
                  toPlayer = toPlayer + "♥";
              }
              else {
                  for(int i = 0; i < pl.getHealth()/2; i++) {
                      toPlayer = toPlayer + "❤";
                  }
              }
              ChatColor prefix;
              if(toPlayer.length() > 7)
                  prefix = ChatColor.GREEN;
              else if(toPlayer.length() > 4)
                  prefix = ChatColor.YELLOW;
              else
                  prefix = ChatColor.RED;
              to.sendMessage(ChatColor.GOLD+"Leben von "+ChatColor.DARK_GREEN+pl.getName()+ChatColor.GOLD+": "+prefix+toPlayer);
            }
        }
        if (ev.getDamager() instanceof Player && ev.getEntity() instanceof Player) {
            Player pl = (Player)ev.getEntity();
            Player to = (Player)ev.getDamager();
            String toPlayer = "";
            if(pl.getHealth()%2 != 0) {
                for(int i = 0; i < (pl.getHealth()-1)/2; i++) {
                    toPlayer = toPlayer + "❤";
                }
                toPlayer = toPlayer + "♥";
            }
            else {
                for(int i = 0; i < pl.getHealth()/2; i++) {
                    toPlayer = toPlayer + "❤";
                }
            }
            ChatColor prefix;
            if(toPlayer.length() > 7)
                prefix = ChatColor.GREEN;
            else if(toPlayer.length() > 4)
                prefix = ChatColor.YELLOW;
            else
                prefix = ChatColor.RED;
            to.sendMessage(ChatColor.GOLD+"Leben von "+ChatColor.DARK_GREEN+pl.getName()+ChatColor.GOLD+": "+prefix+toPlayer);
        }
    }