Callback for camera movement?

[Sanic]

Hey there,

Several places in my code change the position of the camera. There's character following, shaking, manual camera moving, etc.

I've overlaid a grid that matches the tile size of my tilemap and I'd like to update the position of the grid when the camera moves so it moves with the camera. I have a large tilemap so I'd rather not put a massive grid over it if I can help it... so I'll just reposition one the size of the screen when appropriate. I only need to do this when the camera moves... is there a way I can know when this has happened?

[waechtertroll]

Why not just add your own move method to the camera which also updates everything else you need and use that method instead of directly moving the camera?

myCamera.doMoveCamera = function(self, x, y) {
  calculateGameGrid(x, y);
  self.setPosition(x, y);
}

And in your code never call "myCamera.setPosition(...)", but alwas "myCamera.doMoveCamera(...)". I'm not sure how you're going to call the function, so I included a "self"

 

If that's too simplistic for you needs, you might also have a read on variable watching in various browsers, like e. g. this article.

[Sanic]

Thanks waechtertroll. That's my plan B... if it were just my code changing the camera that's all I'd need to do, but since I want to utilize game.camera.shake and game.camera.follow I'd need to account for the camera movements those make as well...

I was trying to get Object.observe to work, but it turns out it's depreciated, lol. I'd have to switch to FireFox to get Object.prototype.watch to work, and I can't work out how to use the last example... .___.;

[samme]

Can you just monitor camera.view?

[samme]