Timers... - GameCreators Forum

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Raigne

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Joined: 24th Nov 2007

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Posted: 1st Dec 2007 22:18

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I know this is probably the most obvious thing in the world, but I still cant figure it out.
When I use to use SDL it had the SDL_Timer. I was wondering if there is something similar in DGDK. I was wanting something with at least the following functions.
StartTimer() - Start the timer
GetTicks() - Get the current position of the timer in milliseconds.
PauseTimer() - Pause the timer
Stop() - Stop the timer...

I looked through the documentation, and didnt find anything. maybe i just overlooked it. I might be able to use the SDL_Timer with DGDK, but i havent tried it yet. Thank you for any assistance.

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IanM

Retired Moderator

22

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Joined: 11th Sep 2002

Location: In my moon base

Posted: 1st Dec 2007 22:45

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You haven't overlooked anything really - DGDK doesn't provide the kind of timer that SDL provides. You have dbTimer() which is simply a wrapper for the GetTickCount() API call.

However, it's easy enough to put together a simple start/pause/unpause class for a timer:

+ Code Snippet

class Timer
{
public:
    Timer() : StartTime(0), PauseTime(0), Running(false)
    {
    }
    void Start()
    {
        StartTime = GetTickCount();
        Running = true;
    }
    void Pause()
    {
        Running = false;
        PauseTime = GetTickCount();
    }
    void Unpause()
    {
        if (!Running)
        {
            StartTime = GetTickCount() - Elapsed();
            Running = true;
        }
    }
    DWORD Elapsed() const
    {
        if (Running)
        {
            return GetTickCount() - StartTime;
        }
        else
        {
            return PauseTime - StartTime;
        }
    }
private:
    DWORD StartTime;
    DWORD PauseTime;
    bool  Running;
};

Literally thrown together in about 15 minutes, so it'll need proper testing - it seems to work Ok.

Utility plugins collection and
http://www.matrix1.demon.co.uk for older plug-ins and example code

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Raigne

16

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Joined: 24th Nov 2007

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Posted: 1st Dec 2007 22:48

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Okay thank you very much. I needed it to be able to display my sprites correctly, and for other things like floating text.

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FERSIS

18

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Joined: 17th May 2006

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Posted: 10th Dec 2007 18:52

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I have done a timer very similar to yours .But i use float's instead of dwords`
Thanks IanM.

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