68 lines
1.7 KiB
JavaScript
68 lines
1.7 KiB
JavaScript
function Timer() {}
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Timer.prototype.Schema =
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"<a:component type='system'/><empty/>";
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Timer.prototype.Init = function()
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{
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this.id = 0;
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this.time = 0;
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this.timers = {};
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};
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Timer.prototype.GetTime = function()
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{
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return this.time;
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}
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Timer.prototype.OnUpdate = function(msg)
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{
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var dt = Math.round(msg.turnLength * 1000);
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this.time += dt;
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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 this.timers)
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{
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if (this.timers[id][3] <= this.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 = this.timers[id];
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var cmp = Engine.QueryInterface(t[0], t[1]);
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try {
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var lateness = this.time - t[3];
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cmp[t[2]](t[4], lateness);
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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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print("Error in timer on entity "+t[0]+", IID "+t[1]+", function "+t[2]+": "+e+"\n"+stack+"\n");
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// TODO: should report in an error log
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}
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delete this.timers[id];
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}
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}
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/**
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* Create a new timer, which will call the 'funcname' method with arguments (data, lateness)
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* on the 'iid' component of the 'ent' entity, after at least 'time' milliseconds.
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* 'lateness' is how late the timer is executed after the specified time (in milliseconds).
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* Returns a non-zero id that can be passed to CancelTimer.
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*/
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Timer.prototype.SetTimeout = function(ent, iid, funcname, time, data)
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{
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var id = ++this.id;
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this.timers[id] = [ent, iid, funcname, this.time + time, data];
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return id;
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};
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Timer.prototype.CancelTimer = function(id)
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{
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delete this.timers[id];
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};
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Engine.RegisterComponentType(IID_Timer, "Timer", Timer);
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