Performance issues

[T4g1]

Loading too many enemies cause frame rate drop

• Starting level: When level is generated, there is a small freeze
• Having many enemies loaded cause lag

I've already added a trigger on the player to load enemies as I travel the dungeon. We should probably use that to unload enemies too far away too.

[T4g1]

Physic engine was doing shit with all the triggers on enemies, set them to trigger only when player is there did the trick.

Added unloading and loading of enemies as the player walks too.

Problem left: Hickup in frame rate when generating level