public void LevelUp()
{
level++;
attack += playerCharacterClass.GetAttackStatIncreaseFromLevelUp();
range += playerCharacterClass.GetRangeStatIncreaseFromLevelUp();
speed += playerCharacterClass.GetSpeedStatIncreaseFromLevelUp(level);
int healthIncrease = playerCharacterClass.GetHealthStatIncreaseFromLevelUp();
maxHealth += healthIncrease;
if (currentHealth > 0)
{
currentHealth += healthIncrease;
}
}