var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { preload: preload, create: create, update: update, render: render });

function preload() {

    game.load.image('parsec', 'assets/sprites/parsec.png');
    game.load.image('spaceman', 'assets/sprites/exocet_spaceman.png');

}

var sprite1;
var sprite2;

function create() {

    game.stage.backgroundColor = '#2d2d2d';

    //  Here we've replaced the sprites body with a polygon.
    //  The point data was generated by tracing the PNGs in Physics Editor: http://www.codeandweb.com/physicseditor

    sprite1 = game.add.sprite(550, 250, 'parsec');
    sprite1.body.setPolygon(56, -1  , 10, -5  , 1, -13  , 0, -34  , 55, -60  , 122, -78  , 165, -80  , 214, -74  , 285, -71  , 296, -44  , 298, -12  , 292, -5  , 168, -3);
    sprite1.body.translate(0, 80);
    sprite1.body.velocity.x = -100;

    sprite2 = game.add.sprite(0, 200, 'spaceman');
    sprite2.body.setPolygon(34, -172  , 75, -172  , 87, -145  , 121, -52  , 105, -16  , 55, -3  , 9, -19  , 1, -57  , 24, -145);
    sprite2.body.translate(0, 175);
    sprite2.body.velocity.x = 100;

}

function update() {

    game.physics.collide(sprite1, sprite2, collisionHandler, null, this);

}

function collisionHandler (obj1, obj2) {

    game.stage.backgroundColor = '#992d2d';

}

function render() {

    game.debug.physicsBody(sprite1.body);
    game.debug.physicsBody(sprite2.body);

}