ActionScript 3 : Particle Collition - actionscript-3

Question

I'm working on my school assignment and i got stuck.
So, the idea is i want to make somehing like in this video, particle collision demonstration (https://www.youtube.com/watch?v=wKqpOOgXLzE) but i cant find any tutorial for that. So i tried to find a tutorial that has similar concept with the video, the pong game. I found a tutorial with multiple ball colliding each other (https://www.emanueleferonato.com/2008/06/07/managing-multiple-balls-collisions-with-flash-as3-version/). and i tried to modify the code to make the ball hit the platform, but sadly it did nothing and i cant think of any other solution.
here's the code:
public class BallCollision extends MovieClip
{
private var mcBallContainer:MovieClip;
private var nNumBalls:Number = 15;
private var mcBrickCOntainer:MovieClip;
private var nStageWidth:Number = 200;
private var nStageHeight:Number = 200;
private var brick1: Brick;
var score:Number = 0;
public function BallCollision ( ) : void
{
mcBallContainer = new MovieClip ( ) ;
mcBallContainer.x = 755;
mcBallContainer.y = 408;
stage.addChild(mcBallContainer);
mcBrickCOntainer = new MovieClip();
mcBrickCOntainer.x = 200;
mcBrickCOntainer.y = 250;
stage.addChild(mcBrickCOntainer);
this.addEventListener ( Event.ENTER_FRAME, enterFrameHandler );
for ( var i = 0; i < nNumBalls; i++ )
{
var mcBall:Ball = new Ball ( Math.floor ( ( Math.random() * 12 ) - 4 ), Math.floor ( ( Math.random() * 12 ) - 4 ) );
mcBall.x = Math.random() * nStageWidth;
mcBall.y = Math.random() * nStageHeight;
mcBallContainer.addChild ( mcBall );
brick1 = new Brick();
brick1.x = 700;
brick1.y = 350;
mcBrickCOntainer.addChild(brick1);
}
}
private function enterFrameHandler ( E:Event ) : void
{
for ( var i = 0; i < mcBallContainer.numChildren; i++ )
{
var mcBall1:* = mcBallContainer.getChildAt( i );
for ( var j = i + 1; j < mcBallContainer.numChildren; j++ )
{
var mcBall2:* = mcBallContainer.getChildAt( j );
var nDistX:Number = Math.abs ( mcBall1.x - mcBall2.x );
var nDistY:Number = Math.abs ( mcBall1.y - mcBall2.y );
var nDistance:Number = Math.sqrt ( nDistX * nDistX + nDistY * nDistY );
if ( nDistance < 20 )
{
solveBalls ( mcBall1, mcBall2 );
score += 1;
trace(score);
}
}
}
scoreCounter.text = String(score);
//brickCalling();
}
/*public function brickCalling(){
}*/
private function solveBalls ( MCBallA:MovieClip, MCBallB:MovieClip) : void
{
var nX1:Number = MCBallA.x;
var nY1:Number = MCBallA.y;
var nDistX:Number = MCBallB.x - nX1;
var nDistY:Number = MCBallB.y - nY1;
var nDistance:Number = Math.sqrt ( nDistX * nDistX + nDistY * nDistY );
var nRadiusA:Number = MCBallA.width/2;
var nRadiusB:Number = MCBallB.width/2;
//var nRadius:Number = 10;
var nNormalX:Number = nDistX/nDistance;
var nNormalY:Number = nDistY/nDistance;
var nMidpointX:Number = ( nX1 + MCBallB.x )/2;
var nMidpointY:Number = ( nY1 + MCBallB.y )/2;
MCBallA.x = nMidpointX - nNormalX * nRadiusA;
MCBallA.y = nMidpointY - nNormalY * nRadiusA;
MCBallB.x = nMidpointX + nNormalX * nRadiusB;
MCBallB.y = nMidpointY + nNormalY * nRadiusB;
var nVector:Number = ( ( MCBallA.nSpeedX - MCBallB.nSpeedX ) * nNormalX )+ ( ( MCBallA.nSpeedY - MCBallB.nSpeedY ) * nNormalY );
var nVelX:Number = nVector * nNormalX;
var nVelY:Number = nVector * nNormalY;
MCBallA.nSpeedX -= nVelX;
MCBallA.nSpeedY -= nVelY;
MCBallB.nSpeedX += nVelX;
MCBallB.nSpeedY += nVelY;
}
}
}
I hope someone can guide me, Thanks!

Answer 1

Have you considered using a physics engine, like box2D?
https://www.box2dflash.org