Approach

/// @description Approach(a, b, amount);
/// @function Approach
/// @param a
/// @param b
/// @param amount

// Moves "a" towards "b" by "amount" and returns the result
// Very usefull because it won't overshoot "b", and works in both directions
// Examples:
//          speed = Approach(speed, max_speed, acceleration);
//          hp = Approach(hp, 0, damage);
//          hp = Approach(hp, max_hp, heal);
//          exp = Approach(exp, levelUP, monsterXP);;

if (argument0 < argument1){ // Example(Approach(hp, max_hp, heal(20))): If hp < max_hp

    argument0 += argument2; // Add heal to hp
    if(argument0 > argument1) return argument1; // If hp is now over max hp, return max hp instead(to no overshoot)

} else { // Another Example: If hp > 0hp and the player suffers damage

    argument0 -= argument2; // Remove from hp the damage value
    if(argument0 < argument1) return argument1; // If the new HP is less then 0, returns 0 instead(to no overshoot)

}