phaser/wip/phaser tests/collision/falling balls.js

/// <reference path="../../Phaser/Game.ts" />
(function () {
    var myGame = new Phaser.Game(this, 'game', 800, 600, init, create, update);
    function init() {
        myGame.loader.addImageFile('ball0', 'assets/sprites/yellow_ball.png');
        myGame.loader.addImageFile('ball1', 'assets/sprites/aqua_ball.png');
        myGame.loader.addImageFile('ball2', 'assets/sprites/blue_ball.png');
        myGame.loader.addImageFile('ball3', 'assets/sprites/green_ball.png');
        myGame.loader.addImageFile('ball4', 'assets/sprites/red_ball.png');
        myGame.loader.addImageFile('ball5', 'assets/sprites/purple_ball.png');
        myGame.loader.addImageFile('atari', 'assets/sprites/atari130xe.png');
        myGame.loader.load();
    }
    var atari;
    var balls;
    function create() {
        atari = myGame.add.sprite(300, 450, 'atari');
        atari.immovable = true;
        balls = myGame.add.group();
        for(var i = 0; i < 100; i++) {
            var tempBall = new Phaser.Sprite(myGame, Math.random() * myGame.stage.width, -32, 'ball' + Math.round(Math.random() * 5));
            tempBall.velocity.y = 100 + Math.random() * 150;
            tempBall.elasticity = 0.9;
            balls.add(tempBall);
        }
    }
    function update() {
        atari.velocity.x = 0;
        if(myGame.input.keyboard.isDown(Phaser.Keyboard.LEFT)) {
            atari.velocity.x = -400;
        } else if(myGame.input.keyboard.isDown(Phaser.Keyboard.RIGHT)) {
            atari.velocity.x = 400;
        }
        balls.forEach(checkOffScreen, false);
        myGame.collide(atari, balls);
    }
    function checkOffScreen(ball) {
        if(ball.y < -32 || ball.y > myGame.stage.height || ball.x < 0 || ball.x > myGame.stage.width) {
            ball.x = Math.random() * myGame.stage.width;
            ball.y = -32;
            ball.velocity.x = 0;
            ball.velocity.y = 100 + Math.random() * 150;
        }
    }
})();