CODEWITHSUNDEEP
c#xna
Bryan
Bryan

Reputation: 197

How can I format a float number so that it looks like real time?

Update! I measure the time like this: float delta = (float)gameTime.ElapsedGameTime.TotalSeconds; time += delta;

I want to format a float number so that it looks like this: 

minutes:seconds.milliseconds
"0:36.763"

Mario Kart picture

How can I do that?

Upvotes: 3

Views: 2941

Answers (3)

Dmitrii Bychenko
Dmitrii Bychenko

Reputation: 186813

Your question is vague one, providing that float contains seconds, e.g.

 float time = 156.763122f; // 2 minutes (120 seconds) and 36.763122 seconds

You can put (C# 6.0)

 string result = $"{(int)time / 60}:{time%60:00.000}";

Or

 string result = string.Format(CultureInfo.InvariantCulture,
   "{0}:{1:00.000}", (int)time / 60, time % 60);

A better approach, however, is to use TimeSpan which has been designed for that purpose:

 TimeSpan ts = TimeSpan.FromSeconds(time);

 String result = ts.ToString("m\\:ss\\.fff")

Upvotes: 2

Nooner Bear
Nooner Bear

Reputation: 85

Your question is referring to TimeSpan formatting. If these answers aren't sufficient, you'll find plenty of information using that keyword. I've typically used the following approach.

 float time = 75.405f;
 TimeSpan TimeInSeconds = TimeSpan.FromSeconds(time);
 string StringTime = TimeInSeconds.ToString(@"m\:ss\.fff");

 Console.WriteLine(StringTime);

The output of which is

1:15.405

You'll likely want to store your game timer in float seconds. You can convert that to a TimeSpan by specifying from which format you're using (seconds). After that, you can simply convert using the TimeSpan's ToString() method with the correct format specifiers. More information can be found here.

https://msdn.microsoft.com/en-us/library/ee372287(v=vs.110).aspx

By the way, I noticed you've tagged your question as XNA. While XNA is fantastic by all measures, keep in mind that XNA is depreciated and you may want to consider porting to MonoGame or SFML.NET.

Upvotes: 0

Matthew Watson
Matthew Watson

Reputation: 109762

You are using a time span, so you can use a TimeSpan object and make use of its custom formatting:

var timeSpan = TimeSpan.FromSeconds(36.763);
Console.WriteLine(timeSpan.ToString("m\\:ss\\.fff"));

This outputs: 0:36.763

The m specifier denotes single digit minutes, ss denotes double digit secnds and .fff denotes three decimal places of milliseconds.

The \\: is an escape sequence for : and \\. is an escape sequence for ..

You could also write the custom format string as @"m\:ss\.fff"

You can also specify days, hours, minutes, seconds and milliseconds separately if you happen to have the interval represented that way:

var timeSpan = new TimeSpan(0, 0, 0, 36, 763); // (days, hours, mins, secs, ms)

Upvotes: 1

Related Questions