Proper way to update enemies in a large 2d level.

Questions & Answers
1

I have a large 2d tiled level with enemies and other sprites, whats the best way to update only the sprites that are close to the player?

Whats the most efficient way to go about this?
Ive been looking around and can’t seem to find anything on this.

thank you for the help! :smiley:

2

I’m calculating the distance from play to enemy, if the enemy is too far, deactivate the enemy.

I think I’ll use a quadtree tho, because all the enemies are still updating even if they are deactivated.

I’m just curious to see what other people have done.
I’m coming from objective c SpriteKit, so unity c# is very new to me.