Question

I have a maze game and I’m trying to create two Timers at a time.
1st (Exits the game after 300 secs)

t1.Interval = 30000;
t1.Enabled = true;
t1.Elapsed += new ElapsedEventHandler(hiddenTimer);

public static void hiddenTimer(object source, ElapsedEventArgs e)
    {
        Console.Clear();
        Environment.Exit(1);
    }

2nd (Displays the time remaining every 1 sec (like a real timer))

t2.Interval = 1000;
t2.Enabled = true;
t2.Elapsed += new ElapsedEventHandler(showTimer);

public static void showTimer(object source, ElapsedEventArgs e)
    {
        Console.Write(timeLeft);
    }

I would want to pass declare timeLeft globally but it says that “An object reference is required for the non-static field, method, or property…”

How would I declare it properly?

Answer 1

First of all, you should declare your timeLeft as a static if you want it to behave like a global variable.

Secondly I’d use one timer and keep track of the time separately for each event:

static DateTime startTime = DateTime.Now;
static DateTime lastTime = DateTime.Now;

In your timer, which should be set to something to give more accuracy like 1/10 of a second, do this:

if (DateTime.Now - lastTime > new TimeSpan(0, 0, 1))
   // Update the time here for your 1s clock
lastTime = DateTime.Now;

if (DateTime.Now - startTime > new TimeSpan(0, 0, 300))
    // Exit the game

Your timings will be more accurate this way.