Created
June 18, 2014 07:21
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jsTimer.centralTimerControl.html - implemented a timer that execute certain action and manage threads.
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| <body> < div id = "box" style = "position:relative;display:inline;" > Bird! </div> | |
| </body> | |
| <script> | |
| var timers = { | |
| timerID: 0, | |
| timers: [], | |
| add: function (fn) { | |
| this.timers.push(fn); | |
| }, | |
| start: function () { | |
| if (this.timerID) return; | |
| (function runNext() { | |
| if (timers.timers.length > 0) { | |
| for (var i = 0; i < timers.timers.length; i++) { | |
| if (timers.timers[i]() === false) { | |
| timers.timers.splice(i, 1); | |
| i--; | |
| } | |
| } | |
| timers.timerID = setTimeout(runNext, 0); | |
| } | |
| })(); | |
| }, | |
| stop: function () { | |
| clearTimeout(this.timerID); | |
| this.timerID = 0; | |
| } | |
| }; | |
| var box = document.getElementById("box"), | |
| x = 200, | |
| y = 0; | |
| timers.add(function () { | |
| box.style.left = x + "px"; | |
| if (++x > 1200) return false; | |
| }); | |
| timers.add(function () { | |
| box.style.top = y + "px"; | |
| y += 2; | |
| if (y > 500) return false; | |
| }); | |
| timers.start(); | |
| </script> |
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