removechild - Sprite Kit Remove SKNode From Parent When Off Screen -

removechild - Sprite Kit Remove SKNode From Parent When Off Screen -

i know how remove sknodes when off screen help game run more smoothly.

how on sprite kit

thanks much

http://stackoverflow.com/a/24195006/2494064

here link reply removes nodes go off top of screen. have replicate cover entire border , set of walls have same contactbitmask values.

basically logic remove skspritenodes when contact physicsbodies have resting outside visible screen.

sprite-kit removechild skspritenode sknode