Question

I’m using the SneakyInput Joystick to move my sprite, and TMX maps for my game. I added auto-camera-movement to my app, so the hero sprite is always visible. When I go through my map, the joystick goes off the screen (it stays where it’s original position is). I made a HUD so that the joystick is always at the same position, and doesn’t move along with the map. The joystick shows up on screen fine, but when I drag it it doesn’t move my hero.

I’ve made HUDLayer a CCLayer in GameLayer, which is where I’m making the moveHero method. The joystick works, but when I move it across the map, the auto-camera-movement works, but the joysticks stay in there same position, and are out of view pretty soon. I know the problem is that I do [self setCenter....blah blah blah]; instead of only setting Level1 as the center. How do I only move the camera for Level1, and not HUDLayer?

Answer 1

Here is a link I found on how to use this class. It seems fairly straight forward. I think you want to change the method - (void)moveHero to:

- (void)moveHero; {
  [self applyJoystick:leftJoystick toNode:hero forTimeDelta:1.0/60.0f]];
}

as it seems you already kept a reference to the left Joystick when you initialized the HUD.

Ok, if you want to centre the HUD layer based on those 2 points (the joystick and the other item), you need only lay them out in a 2D grid, and figure out the centre point from there. I’ll assume you are working with an iPhone screen in landscape mode. Then the dimensions are 480×320. The centre of this screen is (240, 160), and so, I would use this centre for my joystick and other HUD item. So I would probably set my joystick at (10, 10), and my other item (assume dimensions of this item to be (x, y)) at ((470 – x), 10), which would give the items both a 10 pixel boarder around them.

Hope that Helps!