This sample provides a basic character controller and a scene containing a wide variety of obstacles and scenarios: slopes, terrain-like surfaces, dynamic bodies, moving platforms, controllable dynamic vehicle, etc...
SceneInitializationSystem is responsible game initialization. It looks for the presence of a SceneInitialization singleton in the world (it is created by a SceneInitialization authoring object in the subscene). If present, it spawns the Player, Character, and Camera prefabs that are stored in the SceneInitialization singleton, and sets up references between these. This is how the character gets set-up in the scene when pressing Play.
The Basic character uses a structure that is very similar to the third-person standard character. The main additions are found in the BasicCharacterApect, where logic is implemented to allow the following features:
- Ignore grounding on physics bodies that have a certain physics tag (implemented in
IsGroundedOnHit) - Ignore collisions on physics bodies that have a certain physics tag (implemented in
CanCollideWithHit) - Ignore step handling on physics bodies that have a certain physics tag (implemented in
IsGroundedOnHitandOnMovementHit) - Modify mass ratios against certain dynamic physics bodies based on a physics tag (implemented in
OverrideDynamicHitMasses) - Modify velocity projection to allow bouncing against certain physics bodies based on a physics tag (implemented in
ProjectVelocityOnHits)
AI characters use the exact same character Aspect as the main player-controlled character, but their BasicCharacterControl component is being controlled by the BasicAICharacterSystem instead of Player systems. They also have no camera.
Input handling is mostly the same as in the third-person standard character, with the main difference that it uses Unity's new input system package instead of the built-in one. Input is polled from the input system in the BasicPlayerInputsSystem.
Camera handling is the same as in the third-person standard character. It is handled in OrbitCameraSystem.
The vehicle logic is all in the VehicleSystem. It uses cylinder collider casts to detect wheel collisions and apply suspension forces to the vehicle physics body accordingly. For the sake of simplicity, the input-handling for the vehicle is simply hard-coded in the VehicleSystem class.