Xp and Leveling

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var curXp : int = 0;
var maxXp : int = 500;
var xptext : GUIText;
var level : int = 1;

function Update () {

    xptext.text = "Level " + level + " XP " + curXp + " / " + maxXp;
    if(curXp == maxXp) {
        levelUpSystem();
    }

    if(Input.GetKeyDown("r")) {
        curXp += 10;
    }
}


function levelUpSystem () {

    curXp = 0;
    maxXp = maxXp + 50;
    level++;
    maxHealth += 100;
}