var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { 
preload: preload,
create: create,
update: update,
render: render}
); 
var sprite, otherSprite; 
var counter = 0; 
var step = Math.PI * 2 / 360; 
function preload(){ 
game.load.image('sprite', 'assets/sprites/phaser2.png'); 
game.load.image('otherSprite', 'assets/sprites/phaser-dude.png'); 
} 
function create(){ 
sprite = game.add.sprite(0, 0, 'sprite'); 
sprite.alpha = 0.5; 
sprite.x = game.width / 2; 
sprite.anchor.x = sprite.anchor.y = 0.5; 
otherSprite = game.add.sprite(0, 0, 'otherSprite'); 
otherSprite.alpha = 0.5; 
otherSprite.x = (game.width / 2) + 150; 
otherSprite.y = (game.height / 2) + 150; 
otherSprite.anchor.x = sprite.anchor.y = 0.5; 
otherSprite.body.immovable = true ; 
} 
function update(){ 
game.physics.collide(sprite, otherSprite); 
var tStep = Math.sin(counter); 
sprite.y = (game.height / 2) + tStep * 30; 
sprite.rotation += Phaser.Math.degToRad(0.1 * tStep); 
counter += step; 
} 
function render(){ 
game.debug.renderSpriteBody(sprite); 
game.debug.renderSpriteCollision(sprite, 32, 32); 
game.debug.renderSpriteBody(otherSprite); 
}