Test if alive sprites are in a window rectangle?

[buttonsrtoys]

I need to test whether any sprites alive in the world are within a box in the world. It doesn't have to be too accurate. E.g., just testing if the center of the sprite is within a the box is sufficient.

 

I started coding a loop that tested the position of every sprite, but realized there was probably a collision test or some other, simple, Phaser way to do it?

[tips4design]

Well, as long as you don't want to use any complex data structres, than a loop that tested the position of every sprite is the way to go As long as you don't have tens of thousands of sprites everything should be ok.