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How to change all "this" ?


newbieCoder
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Hi, 

I bought the joystick plug in and seems like it is a little bit different than the tutorial. I try to remove the prototype from the plug in code but not be able to change all "this" to the object name. I wonder if anyone has suggestions ?

<script type="text/javascript">

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

			function preload() {
				game.load.atlas('generic', 'assets/virtualjoystick/skins/generic-joystick.png', 'assets/virtualjoystick/skins/generic-joystick.json');
				game.load.image('ship', 'assets/virtualjoystick/thrust.png');
				game.load.image('bg', 'assets/virtualjoystick/sky2.png');
			}

			var sprite;
			var pad;
			var stick;
			var buttonA;
			
			function create() {
				game.physics.startSystem(Phaser.Physics.ARCADE);
				game.renderer.renderSession.roundPixels = true;
				
				bullets = game.add.physicsGroup();
				bullets.createMultiple(32, 'bullet', false);
				bullets.setAll('checkWorldBounds', true);
				bullets.setAll('outOfBoundsKill', true);

				game.add.image(0, 0, 'bg');

				this.sprite = this.add.sprite(400, 350, 'ship');
				this.sprite.texture.baseTexture.scaleMode = PIXI.NEAREST;
				this.sprite.scale.set(2);
				this.sprite.anchor.set(0.5);
				this.sprite.angle = -90;
				this.physics.arcade.enable(this.sprite);

				this.pad = this.game.plugins.add(Phaser.VirtualJoystick);

				this.stick = this.pad.addStick(0, 0, 200, 'generic');
				this.stick.alignBottomLeft(20);
				this.stick.motionLock = Phaser.VirtualJoystick.HORIZONTAL;

				this.buttonA = this.pad.addButton(500, 520, 'generic', 'button1-up', 'button1-down');
				this.buttonA.alignBottomRight(20);

			}

			function update() {

				var maxSpeed = 400;

				if (this.stick.isDown)
				{
					this.sprite.body.velocity.x = this.stick.forceX * maxSpeed;
				}
				else
				{
					this.sprite.body.velocity.x = 0;
				}

			}

			game.state.add('Game', PhaserGame, true);
        </script>

 

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Here, like this:

<script type="text/javascript">

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

    function preload() {
        game.load.atlas('generic', 'assets/virtualjoystick/skins/generic-joystick.png', 'assets/virtualjoystick/skins/generic-joystick.json');
        game.load.image('ship', 'assets/virtualjoystick/thrust.png');
        game.load.image('bg', 'assets/virtualjoystick/sky2.png');
    }

    var sprite;
    var pad;
    var stick;
    var buttonA;
    
    function create() {
        game.physics.startSystem(Phaser.Physics.ARCADE);
        game.renderer.renderSession.roundPixels = true;
        
        bullets = game.add.physicsGroup();
        bullets.createMultiple(32, 'bullet', false);
        bullets.setAll('checkWorldBounds', true);
        bullets.setAll('outOfBoundsKill', true);

        game.add.image(0, 0, 'bg');

        sprite = this.add.sprite(400, 350, 'ship');
        sprite.texture.baseTexture.scaleMode = PIXI.NEAREST;
        sprite.scale.set(2);
        sprite.anchor.set(0.5);
        sprite.angle = -90;
        game.physics.arcade.enable(sprite);

        pad = game.plugins.add(Phaser.VirtualJoystick);

        stick = pad.addStick(0, 0, 200, 'generic');
        stick.alignBottomLeft(20);
        stick.motionLock = Phaser.VirtualJoystick.HORIZONTAL;

        buttonA = pad.addButton(500, 520, 'generic', 'button1-up', 'button1-down');
        buttonA.alignBottomRight(20);
    }

    function update() {

        var maxSpeed = 400;

        if (stick.isDown)
        {
            sprite.body.velocity.x = stick.forceX * maxSpeed;
        }
        else
        {
            sprite.body.velocity.x = 0;
        }

    }

    game.state.add('Game', PhaserGame, true);
</script>

 

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