Architecture
Simulation Systems
Gameplay System
The main system responsible for controlling state of the game, player spawn, calculation of statistics and checking win conditions.
Player System
Player system processes player input and propagates actions to specific components - for example it sets input direction for character controller (Quantum KCC).
Health System
Health system controls player health, taking damage and short immortality after respawn.
Pickup System
Pickup system updates pickups in the world and is responsible for collecting when a player passes through a pickup.
Weapons System
Weapons system maintains player weapons, switching, reloading and shooting.
Lag Compensation Systems
Lag compensation systems provide a way to make physics queries (for example raycasts) against snapshot interpolated entities. These systems dynamically create and destroy "proxy" entities within Quantum simulation. A proxy mimicks its reference entity at the moment of snapshot interpolation. Player shooting is then evaluated against proxies instead of other player entities, which eliminates mispredictions and makes shooting accurate.
Views
Player View
Main player script which handles visuals and camera.
Weapon/Weapons View
Scripts that synchronize weapons, their visuals and react on simulation events.
Health View
Reacts on health changes - damage, spawns hit effects and controls immortality indicator.
Pickup View
Controls visual of the pickup based on its simulation state.
Others
Projectile Visual
Regular MonoBehaviour script which controls projectile flying through the environment with hit effect at the end.
UI
The user interface in the Simple FPS is handled in a straightforward manner, without relying on any specific UI framework. The main script responsible for UI management is the GameUI script. It enables the appropriate UI game objects that should be visible during gameplay. Additionally, the GameUI script maintains references to other UI elements and updates the player UI when a player is spawned.