We Never Die 9+

Debugging and Optimization
Fixed bugs :
Zombies now see and attack.
The people you send on mission no longer disappear temporarily when you exit and enter during a mission.
Optimization :
Big performance fix. Game should load quickly. May not be observable for y'all but it means that future development and debugging should go more smoothly

Explanation For Computer Nerds :
For performance - I got someone to help me out for a bit. Turns out I had the game create its entire audio system 10 more times than it needed to. On top of which, to create the audio system, the audio system itself handled creating each sound effect, taking a whole 10 seconds to load. Thus, every time I wanted to even start testing I had to wait at minimum 1-2 minutes. It was fixed via a singleton and a use of asynchronous loading/delegation of SFX.

People Disappearing - To keep track of where the people are, there’s a enum. Essentially a custom marker. When you exit the game however, the people would remain in the mission, I just simply told it to send people back when the player opens it back.

For zombies seeing - Zombies have conditions which let them see something. Beforehand there was only targets that were visible and not visible, but I added in another type where targets could be attention grabbing. I left an "and" statement so targets needed to be attention grabbing and visible, which was impossible since it could only hold one state.