Untitled

/**

* Created by kuppa on 4/3/15.

*/

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

function preload()

{

game.load.image('ship','invaders/player.png');

game.load.image('bullet','invaders/bullets.png');

game.load.image('invader','invaders/invader32x32x4.png',32,32);

game.load.image('enemyBullet','invaders/enemy-bullet.png');

game.load.image('starfield','invaders/starfield.png');

game.load.image('background','invaders/background2.png');

game.load.spritesheet('kaboom','invaders/explode.png',120,120);

}

var player;

var aliens;

var bullets;

var bulletTime = 0;

var cursors;

var fireButton;

var explosions;

var starfield;

var score = 0;

var scoreString = '';

var scoreText;

var lives;

var enemyBullet;

var firingTimer = 0;

var stateText;

var livingEnemies = [];

function create()

{

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

starfield = game.add.tileSprite(0,0,800,600,'starfield');

bullets = game.add.group();

bullets.enableBody = true;

bullets.physicsBodyType = Phaser.Physics.ARCADE;

bullets.createMultiple(30, 'bullet');

bullets.setAll('anchor.x', 0.5);

bullets.setAll('anchor.y', 1);

bullets.setAll('outOfBoundsKill', true);

bullets.setAll('checkWorldBounds', true);

enemyBullets = game.add.group();

enemyBullets.enableBody = true;

enemyBullets.physicsBodyType = Phaser.Physics.ARCADE;

enemyBullets.createMultiple(30, 'enemyBullet');

enemyBullets.setAll('anchor.x', 0.5);

enemyBullets.setAll('anchor.y', 1);

enemyBullets.setAll('outOfBoundsKill', true);

enemyBullets.setAll('checkWorldBounds', true);

player = game.add.sprite(400, 500, 'ship');

player.anchor.setTo(0.5, 0.5);

game.physics.enable(player, Phaser.Physics.ARCADE);

aliens = game.add.group();

aliens.enableBody = true;

aliens.physicsBodyType = Phaser.Physics.ARCADE;

scoreString = 'Score : ';

scoreText = game.add.text(10, 10, scoreString + score, { font: '34px Arial', fill: '#fff' });

lives = game.add.group();

game.add.text(game.world.width - 100, 10, 'Lives : ', { font: '34px Arial', fill: '#fff' });

stateText = game.add.text(game.world.centerX,game.world.centerY,' ', { font: '84px Arial', fill: '#fff' });

stateText.anchor.setTo(0.5, 0.5);

stateText.visible = false;

stateText = game.add.text(game.world.centerX,game.world.centerY,' ', { font: '84px Arial', fill: '#fff' });

stateText.anchor.setTo(0.5, 0.5);

stateText.visible = false;

for (var i = 0; i < 3; i++)

{

var ship = lives.create(game.world.width - 100 + (30 * i), 60, 'ship');

ship.anchor.setTo(0.5, 0.5);

ship.angle = 90;

ship.alpha = 0.4;

}

explosions = game.add.group();

explosions.createMultiple(30, 'kaboom');

explosions.forEach(setupInvader, this);

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

fireButton = game.input.keyboard.addKey(Phaser.Keyboard.SPACEBAR);

function createAliens () {

for (var y = 0; y < 4; y++)

{

for (var x = 0; x < 10; x++)

{

var alien = aliens.create(x * 48, y * 50, 'invader');

alien.anchor.setTo(0.5, 0.5);

alien.animations.add('fly', [ 0, 1, 2, 3 ], 20, true);

alien.play('fly');

alien.body.moves = false;

}

}

aliens.x = 100;

aliens.y = 50;

// All this does is basically start the invaders moving. Notice we're moving the Group they belong to, rather than the invaders directly.

var tween = game.add.tween(aliens).to( { x: 200 }, 2000, Phaser.Easing.Linear.None, true, 0, 1000, true);

// When the tween loops it calls descend

tween.onLoop.add(descend, this);

}

function setupInvader (invader) {

invader.anchor.x = 0.5;

invader.anchor.y = 0.5;

invader.animations.add('kaboom');

}

function descend() {

aliens.y += 10;

}

function update() {

starfield.tilePosition.y += 2;

if (player.alive)

{

// Reset the player, then check for movement keys

player.body.velocity.setTo(0, 0);

if (cursors.left.isDown)

{

player.body.velocity.x = -200;

}

else if (cursors.right.isDown)

{

player.body.velocity.x = 200;

}

// Firing?

if (fireButton.isDown)

{

fireBullet();

}

if (game.time.now > firingTimer)

{

enemyFires();

}

// Run collision

game.physics.arcade.overlap(bullets, aliens, collisionHandler, null, this);

game.physics.arcade.overlap(enemyBullets, player, enemyHitsPlayer, null, this);

}

}

function render() {

for (var i = 0; i < aliens.length; i++)

{

game.debug.body(aliens.children[i]);

}

}

function collisionHandler (bullet, alien) {

// When a bullet hits an alien we kill them both

bullet.kill();

alien.kill();

// Increase the score

score += 20;

scoreText.text = scoreString + score;

// And create an explosion :)

var explosion = explosions.getFirstExists(false);

explosion.reset(alien.body.x, alien.body.y);

explosion.play('kaboom', 30, false, true);

if (aliens.countLiving() == 0)

{

score += 1000;

scoreText.text = scoreString + score;

enemyBullets.callAll('kill',this);

stateText.text = " You Won, \n Click to restart";

stateText.visible = true;

//the "click to restart" handler

game.input.onTap.addOnce(restart,this);

}

}

function enemyHitsPlayer (player,bullet) {

bullet.kill();

live = lives.getFirstAlive();

if (live)

{

live.kill();

}

// And create an explosion :)

var explosion = explosions.getFirstExists(false);

explosion.reset(player.body.x, player.body.y);

explosion.play('kaboom', 30, false, true);

// When the player dies

if (lives.countLiving() < 1)

{

player.kill();

enemyBullets.callAll('kill');

stateText.text=" GAME OVER \n Click to restart";

stateText.visible = true;

//the "click to restart" handler

game.input.onTap.addOnce(restart,this);

}

}

function enemyFires () {

// Grab the first bullet we can from the pool

enemyBullet = enemyBullets.getFirstExists(false);

livingEnemies.length=0;

aliens.forEachAlive(function(alien){

// put every living enemy in an array

livingEnemies.push(alien);

});

if (enemyBullet && livingEnemies.length > 0)

{

var random=game.rnd.integerInRange(0,livingEnemies.length-1);

// randomly select one of them

var shooter=livingEnemies[random];

// And fire the bullet from this enemy

enemyBullet.reset(shooter.body.x, shooter.body.y);

game.physics.arcade.moveToObject(enemyBullet,player,120);

firingTimer = game.time.now + 2000;

}

}

function fireBullet () {

// To avoid them being allowed to fire too fast we set a time limit

if (game.time.now > bulletTime)

{

// Grab the first bullet we can from the pool

bullet = bullets.getFirstExists(false);

if (bullet)

{

// And fire it

bullet.reset(player.x, player.y + 8);

bullet.body.velocity.y = -400;

bulletTime = game.time.now + 200;

}

}

}

function resetBullet (bullet) {

// Called if the bullet goes out of the screen

bullet.kill();

}

function restart () {

// A new level starts

//resets the life count

lives.callAll('revive');

// And brings the aliens back from the dead :)

aliens.removeAll();

createAliens();

//revives the player

player.revive();

//hides the text

stateText.visible = false;

}

}