HTML and CSS Reference
In-Depth Information
document.onkeyup = function(e){
//document.body.onkeyup = function(e){
e = e?e:window.event;
keyPressList[e.keyCode] = false;
};
//*** application start
switchGameState(GAME_STATE_INIT);
const FRAME_RATE = 40;
frameRateCounter = new FrameRateCounter(FRAME_RATE);
//**** application loop
var intervalTime = 1000/FRAME_RATE;
setInterval(runGame, intervalTime );
}
//*** new FrameRateCounter object prototype
function FrameRateCounter(fps) {
if (fps == undefined){
this.fps = 40
}else{
this.fps = fps
}
this.lastFrameCount = 0;
var dateTemp = new Date();
this.frameLast = dateTemp.getTime();
delete dateTemp;
this.frameCtr = 0;
this.lastTime = dateTemp.getTime();
this.step = 1;
}
FrameRateCounter.prototype.countFrames=function() {
var dateTemp = new Date();
var timeDifference = dateTemp.getTime()-this.lastTime;
this.step = (timeDifference/1000)*this.fps;
this.lastTime = dateTemp.getTime();
//console.log("step=",this.step)
this.frameCtr++;
if (dateTemp.getTime() >=this.frameLast+1000) {
ConsoleLog.log("frame event");
this.lastFrameCount = this.frameCtr;
this.frameCtr = 0;
this.frameLast = dateTemp.getTime();
}
delete dateTemp;
}
</script>
</head>
