view docs/html/guidetimeexamples.html @ 2303:d87417504c75

First pass implementation of new SDL scancode concept, as discussed with Christian Walther. Currently only implemented on Mac OS X for sanity checking purposes.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 05 Feb 2008 07:19:23 +0000
parents 355632dca928
children
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>Time Examples</H1
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>Time based game loop</H2
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>#define TICK_INTERVAL    30

static Uint32 next_time;

Uint32 time_left(void)
{
    Uint32 now;

    now = SDL_GetTicks();
    if(next_time &#60;= now)
        return 0;
    else
        return next_time - now;
}


/* main game loop */

    next_time = SDL_GetTicks() + TICK_INTERVAL;
    while ( game_running ) {
        update_game_state();
        SDL_Delay(time_left());
        next_time += TICK_INTERVAL;
    }&#13;</PRE
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