angleToPointer on child sprite

[Titus]

Hi guys,

I'm trying to rotate a player's arm (anchored at the shoulder) to the mouse pointer using angleToPointer() method for aiming.  I have a player sprite and a frontArm sprite. angleToPointer works as expected until I make the frontArm sprite a child of the player sprite. When I do this, the frontArm sprite will get stuck at certain points and won't rotate any further. I'm a complete newbie to Phaser and game dev so any help would be appreciated. I'll put my code below:

	create: function() {
	
		this.background = this.game.add.sprite(0, 0, 'background');	
		this.game.physics.startSystem(Phaser.Physics.ARCADE);
		
		this.player = this.game.add.sprite(200, 500, 'player', 'Fire Marshall Main_00025'); 
		this.game.physics.arcade.enable(this.player);			
		this.player.anchor.setTo(0.5);

		this.frontArm = this.player.addChild(this.game.make.sprite(-10, -240, 'frontArm'));
		this.frontArm.anchor.setTo(0.48, 0.30);		
		this.game.physics.arcade.enable(this.frontArm);			

		//walk animation
		this.player.animations.add('walkright', Phaser.Animation.generateFrameNames('Fire Marshall Main_', 0, 24,'', 5), 24, true, false);
		this.player.animations.add('walkleft', Phaser.Animation.generateFrameNames('Fire Marshall Main_', 24, 0,'', 5), 24, true, false);
		

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

	},

	update: function() {
//player walk movement
 this.player.body.velocity.x = 0;
	if (cursors.right.isDown) {
        this.player.body.velocity.x = 150;
        this.player.animations.play('walkright');
    }else if (cursors.left.isDown){
        this.player.body.velocity.x = -150;
        this. player.animations.play('walkleft');
    }else {
    	this.player.animations.stop();
    	this.player.frame = 25; 
    }

    this.frontArm.rotation = this.game.physics.arcade.angleToPointer(this.frontArm);





	}

 

[samid737]

you can try :

this.frontArm.rotation = this.game.physics.arcade.angleToPointer(this.frontArm.world);

to get the world coordinates of the front arm (angleToPointer looks at x and y coordinates during calculations). 

[Titus]

@samid737 That worked. Thanks so much!