53 lines
1.1 KiB
JavaScript
53 lines
1.1 KiB
JavaScript
var g_TimerID = 0;
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var g_Timers = {};
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var g_Time = Date.now();
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/**
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* Set a timeout to call func() after 'delay' msecs.
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* Returns an id that can be passed to clearTimeout.
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*/
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function setTimeout(func, delay)
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{
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var id = ++g_TimerID;
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g_Timers[id] = [g_Time + delay, func];
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return id;
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}
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function clearTimeout(id)
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{
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delete g_Timers[id];
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}
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/**
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* If you want to use timers, then you must call this function regularly
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* (e.g. in a Tick handler)
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*/
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function updateTimers()
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{
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g_Time = Date.now();
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// Collect the timers that need to run
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// (We do this in two stages to avoid deleting from the timer list while
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// we're in the middle of iterating through it)
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var run = [];
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for (var id in g_Timers)
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{
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if (g_Timers[id][0] <= g_Time)
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run.push(id);
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}
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for each (var id in run)
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{
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var t = g_Timers[id];
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if (!t)
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continue; // an earlier timer might have cancelled this one, so skip it
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try {
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t[1]();
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} catch (e) {
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var stack = e.stack.trimRight().replace(/^/mg, ' '); // indent the stack trace
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error("Error in timer: "+e+"\n"+stack+"\n");
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}
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delete g_Timers[id];
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}
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}
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