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- 14. Script package { import flash.display.*; import flash.events.*; public class MyAnimation extends MovieClip { // Setup the values private var bounce:Number = -0.9; private var gravity:Number = .5; private var oldX:Number; private var oldY:Number; private var N:uint = 3; private var ballArray:Array = new Array(); //Constructor public function MyAnimation() { init(); } //Methods public function init():void { for (var i:uint = 0; i < N; i++){ var thisBall:Ball = new Ball(); ballArray.push(thisBall); ballArray[i].graphics.lineStyle(5,0x000000); ballArray[i].graphics.beginFill(0xCCCCCC); ballArray[i].graphics.drawCircle(0,0,25); ballArray[i].x = Math.floor(Math.random()*500); ballArray[i].y = Math.floor(Math.random()*400); ballArray[i].moveX = Math.floor(Math.random()*20); ballArray[i].moveY = Math.floor(Math.random()*20); addChild(ballArray[i]); } addEventListener(Event.ENTER_FRAME, onMoveCircle); } public function onMoveCircle(pEvent:Event):void { for (var i:int = 0; i < ballArray.length; i++){ ballArray[i].moveY = ballArray[i].moveY + gravity; ballArray[i].x = ballArray[i].x + ballArray[i].moveX; ballArray[i].y = ballArray[i].y + ballArray[i].moveY; if(ballArray[i].x > stage.stageWidth - ballArray[i].width/2 || ballArray[i].x < ballArray[i].width/2) { ballArray[i].moveX = ballArray[i].moveX*bounce; //change direction } if(ballArray[i].y > stage.stageHeight - ballArray[i].height/2 || ballArray[i].y < ballArray[i].height/2) { ballArray[i].moveY = ballArray[i].moveY*bounce; //change direction } } } } }