using System;

public class Program

{

    public class Cooldown {

        // Create persistent variables you need up here.

        private float interval;

        float lastTime = -1;

        // (variables you create inside the functons cease to exist when the function is done running)

        // sets the interval of time that needs to pass between actions

        public void SetInterval(float m_interval) {

            interval = m_interval;

        }

        // attempts to do the action at currentTime

        // if the action is ready, return true

        // if the action is not ready (still in cooldown since the last success), return false

        public void Attempt (float currentTime, System.Action onSuccess, System.Action onFail) {

            if(currentTime >= lastTime + interval || lastTime == -1){

                onSuccess.Invoke();

                lastTime = currentTime;

            }else if(currentTime < lastTime + interval)

                onFail.Invoke();

            // only do the right one, based on our last success time compared to the current Time provided

        }

        public float PercentReady(float currentTime) {

            float value = (currentTime - lastTime)/interval;

            if(value > 0)

                return value;

            return 1;

        }

    }

​

    // TEST CODE - no need to edit

    public static void Main()

    {

        Console.WriteLine("Cooldown Test Suite");

        Cooldown c = new Cooldown();

        c.SetInterval(5);

        Console.WriteLine("Trying at 1");

        c.Attempt(1, PrintSuccess, PrintFailure);

        Console.WriteLine("Trying at 2");

        c.Attempt(2, PrintSuccess, PrintFailure);

        Console.WriteLine("Trying at 5");

        c.Attempt(5, PrintSuccess, PrintFailure);

        Console.WriteLine("Trying at 6");

        c.Attempt(6, PrintSuccess, PrintFailure);

        Console.WriteLine("Trying at -5");

        c.Attempt(-5, PrintSuccess, PrintFailure);

    }

    static void PrintSuccess() {

        Console.WriteLine("success"); 

    }

    static void PrintFailure() {

        Console.WriteLine("failure"); 

    }

}