public static void addXP(String playername, int xp) {
		xp = xp*Booster.getBoosterMulitply(playername);
		if (xp < 0) {
			xp = 0;
		}
		addXPReal(playername, xp);
	}

	public static void addXPReal(String playername, int xp) {
		if (Bukkit.getServer().getPlayer(playername) != null) {
			Player p = (Player)Bukkit.getServer().getPlayer(playername);
			int currentXP = XP.get(p.getName(), XPType.XP);
			int currentLevel = XP.get(p.getName(), XPType.LEVEL);
			int getmaxXP = getMaxXPbyLevel(currentLevel);
	        int newXP = currentXP + xp;
	        if (newXP >= getmaxXP) {
				setXP(playername, 0);
				setLevel(playername, currentLevel + 1);
				int remainXP = newXP - getmaxXP;
				alertLevelingUp(p, currentLevel+1);
				addXP(playername, remainXP);
	        } else {
	        	setXP(playername, newXP);
	        	if (Booster.isBoosting(p.getName(), BoosterType.OWN)) {
					Title.sendActionBar(p, "§b+" + xp + " XP §7[§f" + newXP + "§f/§b" + XP.getMaxXPbyLevel(XP.get(p.getName(), XPType.LEVEL)) + "§7] §6Booster (x" + Booster.getBoosterMulitply(p.getName()) + ")");
				} else {
					Title.sendActionBar(p, "§b+" + xp + " XP §7[§f" + newXP + "§f/§b" + XP.getMaxXPbyLevel(XP.get(p.getName(), XPType.LEVEL)) + "§7]");
				}
	        }
		}
	}

	public static void alertLevelingUp(Player p, int level) {
		Random random = new Random();
		int reward = 0;
		int levels = level;
		if (levels <= 10) {
			reward = random.nextInt(20);
		} else if (levels <= 50) {
			reward = random.nextInt(40);
		} else if (levels <= 100) {
			reward = random.nextInt(100);
		} else if (levels <= 500) {
			reward = random.nextInt(200);
		} else if (levels <= 1000) {
			reward = random.nextInt(300);
		} else if (levels <= 2000) {
			reward = random.nextInt(400);
		}
		Economy.addToken(p.getName(), reward);
		Bukkit.broadcastMessage("§7[§b§lLEVEL UP§7] §a" + p.getName() + " §7has been level up to §e§lLEVEL " + level);
		Title.sendTitle(p, "§3▲ §b§lLEVEL UP §3▲", "§7[§b" + (level-1) + "§7] §f➤ §7[§a" + level + "§7]");
		p.sendMessage(("§a§l§m---------------------------------------------"));
		p.sendMessage(Message.CenterMessage("§f§lExperience Summary"));
		p.sendMessage(Message.CenterMessage(" "));
		p.sendMessage(Message.CenterMessage("§eYou are level §7[§b" + (level-1) + "§7] §f➤ §7[§a" + level + "§7]"));
		p.sendMessage(Message.CenterMessage("§eYou need §b" + getMaxXPbyLevel(level) + " exp §eto reach level."));
		p.sendMessage(Message.CenterMessage("§eReward: §6" + reward + " §eToken"));
		p.sendMessage(Message.CenterMessage(" "));
		p.sendMessage(Message.CenterMessage("§eKeep fighting and have fun in §6MC-SekSin.NET"));
		p.sendMessage(("§a§l§m---------------------------------------------"));
		p.playSound(p.getLocation(), Sound.LEVEL_UP, 10, 1);
	}