How many sprites can you have on screen before slowdown?

britzl · January 3, 2022, 7:38pm

britzl:

It may seem nice and simple to have a script on each zombie but it is in fact quite inefficient. All of the zombies seems to behave the same way and move towards the player. I would suggest that you do not have a script on each zombie, but rather a single zombie AI script that keeps a list of all zombies. This script can get the player position and in a loop move all zombie game objects towards the player. This will be a lot more efficient. You could even decide to not update all zombies every frame and instead spread the work over multiple frames and move using go.animate() instead of manually each frame.

But what about collisions with walls? Easy! Assign a script to the game object holding the tilemap+collision shape and resolve zombie collisions in this script. The advantage is again that you have a single script instead of one per zombie.

I created an example project to show this:

HTML5: zombies 1.0