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Main.as
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Main.as
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package{
import flash.display.MovieClip;
import flash.events.*;
import flash.ui.*;
import flash.events.Event; //used for ENTER_FRAME event
public class Main extends MovieClip{
//variables
var paddle;
var ball;
var paddleSpeed:Number;
var ballXSpeed:Number;
var ballYSpeed:Number;
var ballOnPaddle:Boolean;
var gameWon:Boolean;
var score:Number;
var life:Number;
//Arrays
var bricks:Array = new Array;
public function Main(){
init();
}
function init():void {
//initialize variables
paddleSpeed = 0;
ballXSpeed = 10;
ballYSpeed = 10;
ballOnPaddle = true;
gameWon = false;
life = 3;
//create the bricks
var k=0;
for(var i = 0; i<4; ++i){
for(var j=0; j<15;++j){
var tmpBrick = new Brick();
tmpBrick.x = 20 + j*36;
tmpBrick.y = 20+i*52;
addChild(tmpBrick);
bricks[k++] = tmpBrick;
}
}
//create the paddle
paddle = new Paddle();
paddle.x = stage.stageWidth/2;
paddle.y = 375;
addChild(paddle);
//create the ball
ball = new Ball();
ball.x = paddle.x;
ball.y = paddle.y - (paddle.height/2 + ball.height/2);
addChild(ball);
stage.addEventListener(KeyboardEvent.KEY_DOWN,keyDownHandler);
stage.addEventListener(KeyboardEvent.KEY_UP,keyUpHandler);
addEventListener(Event.ENTER_FRAME,enterFrameHandler);
}
function keyDownHandler(event:KeyboardEvent){
if(event.keyCode == Keyboard.LEFT){
paddleSpeed = -10;
}
if(event.keyCode == Keyboard.RIGHT){
paddleSpeed = 10;
}
if(event.keyCode == Keyboard.SPACE){
ballOnPaddle = false;
}
}
function keyUpHandler(event:KeyboardEvent){
if(event.keyCode == Keyboard.LEFT){
paddleSpeed = 0;
}
if(event.keyCode == Keyboard.RIGHT){
paddleSpeed = 0;
}
}
function enterFrameHandler(event:Event){
//move paddle
paddle.x += paddleSpeed;
//collision between paddle and the stage
if(paddle.x - paddle.width/2 < 0 ){
paddle.x = paddle.width/2;
}else if(paddle.x + paddle.width/2 > stage.stageWidth ){
paddle.x = stage.stageWidth - paddle.width/2;
}
//check if ball is on the paddle
if(ballOnPaddle == true){
ball.x = paddle.x;
ball.y = paddle.y - (paddle.height/2 + ball.height/2);
}else{
//if not update the ball
ball.x += ballXSpeed;
ball.y -= ballYSpeed;
//check for collision between ball and stage
if(ball.x + ball.width/2 > stage.stageWidth || ball.x - ball.width/2 < 0){
ballXSpeed *= -1;
}
if(ball.y - ball.height/2 < 0){
ballYSpeed *= -1;
}
//if ball goes down the stage don't check for collision just reduce life bring it onto paddle
if(ball.y > stage.stageHeight){
ballOnPaddle = true;
life = life-1;
//If life becomes 0 then game over
if(life <= 0){
stage.removeEventListener(KeyboardEvent.KEY_DOWN,keyDownHandler);
stage.removeEventListener(KeyboardEvent.KEY_UP,keyUpHandler);
removeEventListener(Event.ENTER_FRAME,enterFrameHandler);
removeChild(ball);
removeChild(paddle);
statusTxt.text = "You Lost!"
}
}
//check for collision between ball and paddle
if(paddle.hitTestPoint(ball.x,ball.y,true)){
var diff = 0;
if (ball.x < paddle.x){ //If the ball is on the right side of the paddle
diff = paddle.x - ball.x;
ballXSpeed = (-0.4 * diff);
}else if (ball.x > paddle.x){ //If ball is on right side of the paddle
diff = ball.x - paddle.x;
ballXSpeed= (0.4 * diff);
}
ballYSpeed *= -1;
}
//check for collision between ball and paddle
gameWon = true;
for (var i=0; i<bricks.length; ++i){
if(bricks[i] != null){
gameWon = false;
if(bricks[i].hitTestObject(ball)){
ballYSpeed *= -1;
removeChild(bricks[i]);
bricks[i] = null;
}
}
}
//If all the bricks were null then the game was won
if(gameWon == true){
stage.removeEventListener(KeyboardEvent.KEY_DOWN,keyDownHandler);
stage.removeEventListener(KeyboardEvent.KEY_UP,keyUpHandler);
removeEventListener(Event.ENTER_FRAME,enterFrameHandler);
removeChild(ball);
removeChild(paddle);
statusTxt.text = "You won!"
}
}
}
}
}