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

function preload() {
    'use strict';
    game.load.image('player', 'assets/sprites/player.png');
    game.load.tilemap('tilemap', 'assets/terrain/terrain.json', null, Phaser.Tilemap.TILED_JSON);
    game.load.image('tiles', 'assets/terrain/tilesprite.png');

}

var player;

var cursors;
var wasd;

var diagnolspd;
var spd;

var map;
var collision;
var ground;

function create() {
    'use strict';

    map = game.add.tilemap('tilemap');
    map.addTilesetImage('tilesprite', 'tiles');

    collision = map.createLayer('collision');
    ground = map.createLayer('ground');

    map.setCollisionBetween(1, 64, true, 'collision');

    ground.resizeWorld();

    game.physics.startSystem(Phaser.Physics.ARCADE);

    player = game.add.sprite(game.world.centerX, game.world.centerY, 'player');

    game.physics.arcade.enable(player);

    cursors = game.input.keyboard.createCursorKeys();

    wasd = {
        up: game.input.keyboard.addKey(Phaser.Keyboard.W),
        down: game.input.keyboard.addKey(Phaser.Keyboard.S),
        left: game.input.keyboard.addKey(Phaser.Keyboard.A),
        right: game.input.keyboard.addKey(Phaser.Keyboard.D)
    };

    diagnolspd = 350;
    spd = 400;

    game.camera.follow(player);

}

function update() {
    'use strict';

    player.body.velocity.x = 0;
    player.body.velocity.y = 0;

    if (wasd.up.isDown && wasd.right.isDown) {
        player.body.moveUp(diagnolspd);
        player.body.moveRight(diagnolspd);
    } else if (wasd.up.isDown && wasd.left.isDown) {
        player.body.moveUp(diagnolspd);
        player.body.moveLeft(diagnolspd);
    } else if (wasd.down.isDown && wasd.right.isDown) {
        player.body.moveDown(diagnolspd);
        player.body.moveRight(diagnolspd);
    } else if (wasd.down.isDown && wasd.left.isDown) {
        player.body.moveDown(diagnolspd);
        player.body.moveLeft(diagnolspd);
    } else if (wasd.up.isDown) {
        player.body.moveUp(spd);
    } else if (wasd.down.isDown) {
        player.body.moveDown(spd);
    } else if (wasd.left.isDown) {
        player.body.moveLeft(spd);
    } else if (wasd.right.isDown) {
        player.body.moveRight(spd);
    }

}