ActionScript 3.0 :: Speed Test For Looping Through Array
Dec 23, 2009
On the PHP site it was advised to do for loops in a certain way that I have not seen on any recommendations for AS3. I think I found about a 10 times speed increase and I thought I better check that I was not missing something (?) before going through my code and changing it. Very simple and fairly self explanatory (in the faster one the array.length is not calculated every time I think):
Code:
import flash.utils.getTimer;
var time:Number;
var myarray:Array = new Array();
myarray.length=2000000;
time=getTimer();
[Code] .....
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I have a custom class(Ball) and a .FLA. Ignore the custom class, it works fine, having a problem within my main FLA.
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Here is the code from my main FLA
[as]var ballTimer:Timer = new Timer(200);
var changeTimer:Timer = new Timer(50000);
ballTimer.addEventListener(TimerEvent.TIMER, throwBall, false, 0, true);
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changeTimer.addEventListener(TimerEvent.TIMER, changeColor);
changeTimer.start();
//Environment variables
var gravity:int = 1.5;
var friction:Number = .85;
var color:int = 2;
//score variables
var YellowScore:int = 0;
var BlackScore:int = 0;
var tBall:Ball = new Ball(new Point(mouseX, mouseY), new Point(Math.random() + Math.random()*5 + Math.random()*8), gravity, friction);
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function throwBall(e:TimerEvent):void {
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tBall.addEventListener(Event.ENTER_FRAME, hitTest);
tBall.gotoAndStop(color);
addChild(tBall);
ballArray.push(tBall);
}
function changeColor(e:TimerEvent):void {
if (color == 1) {
color = 2;
return;
}
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color = 1;
}
}
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trace(ballArray.length);
for (var i = 0; i < ballArray.length - 1 ; i++) {
if ((ballArray[i].hitTestObject(YellowBucket1) && ballArray[i].currentFrame == 2)) {
YellowScore += 1; //trace(YellowScore); trace("Space");
ballArray[i].parent.removeChild(ballArray[i]);
ballArray.shift();
break;
}
else if ((ballArray[i].hitTestObject(YellowBucket1) && ballArray[i].currentFrame == 1)) {
YellowScore -= 1;
}
else if ((ballArray[i].hitTestObject(BlackBucket1) && ballArray[i].currentFrame == 2)) {
BlackScore -= 1;
}
else if ((ballArray[i].hitTestObject(BlackBucket1) && ballArray[i].currentFrame == 1)) {
BlackScore += 1; trace("BlackScore");
}
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trace("cleanUp");
ballArray[i].parent.removeChild(ballArray[i]);
ballArray.shift();
}
}
updateScore();
}
function updateScore() {
BlackBucket_txt.text = String(BlackScore);
YellowBucket_txt.text = String(YellowScore);
}
[/as]
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<question>
<q1> Who coined the term "Clinical Psychology"? </q1>
<answer> Lightner Witmer </answer>
<option1> Stanley Hall </option1>
<option2> Lightner Witmer </option2>
<option3> Henry P. David </option3>
</question>
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var one:Array = new Array( 3 );
one[0] = ["Stanley Hall", "Lightner Witmer", "Henry P. David"];
one[1] = ["Stanley Hall", "Lightner Witmer", "Henry P. David"];
one[2] = ["Stanley Hall", "Lightner Witmer", "Henry P. David"];
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