A way to check if a sprite is out of the world

[ylluminarious]

I'm trying to find an easy way to check if a sprite has gone past world boundaries. Basically, I want something like this:

if (sprite.outOfWorldBounds === true) {    // do stuff} 

I know that I could just check a sprite's coordinates on the world, but I'm wondering if Phaser has a better way of dealing with this.

[lewster32]

http://docs.phaser.io/Phaser.Sprite.html#checkWorldBounds

[lewster32]

Though if you can do it via x/y checking in the update loop, prefer that method, as it'll be faster.

[ylluminarious]

@lewster32  Thanks for the answer

I am wondering, though, is there a way to assign your own function to `sprite.events.onOutOfBounds`, as I would like the sprite to do a specific thing once it leaves the world?

[lewster32]

Yes - it's an instance of a Signal which has all of the usual methods open to it, so in your case:

sprite.events.onOutOfBounds.add(function() {  // ... this sprite has gone out of bounds, so perform your magic here!}, this);

[ylluminarious]

Thanks, that worked.