how do I check hitTest with 2 objects from same class?

Question

I have an object (lets call it circle) and I want to check when this circle hits other circles.

I spawned them in through a Main.as using addChild(circle1) then set the location to each one:

var circle1:Circle = new Circle();

circle1.x = 0.0

circle1.y = 0.0

Right now how I have the code working is:

if(circle1.hitTestObject(circle2))

{

// do something

}

But I have to check each circle to hitTest with every other circle, which takes a long time.

ex:

if(circle1.hitTestObject(circle2))

if(circle1.hitTestObject(circle3))

if(circle1.hitTestObject(circle4))

if(circle1.hitTestObject(circle5))

Is there some way I can have my Circle() class hitTest other Circle() classes?

Or maybe create an array of circles and hitTest those objects against each other?

Nabren · Answer

Your best bet would be to create a createCircle function and insert them into an array at creation:

var circles:Array = new Array();

function createCircle(startX:Number, startY:Number):void

{

var newCircle:Circle = new Circle();

newCircle.x = startX;

newCircle.y = startY;

circles.push(newCircle);

}

And then make a checkCircles function as follows:

function checkCircles():void

{

for (var idx:int = circles.length - 1; idx >= 0; idx--)

{

for (var idx2:int = idx - 1; idx2 >= 0; idx2--)

{

var circle1:Circle = circles[idx];

var circle2:Circle = circles[idx2];

if (circle1.hitTestObject(circle2))

{

trace("Circle " + idx + " collided with circle " + idx2 + "!");

}

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