Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 12]

CABody
CABSPBrush
CABspEntity
CABSPHeader
CACamera
CAEngine	The main engine class that manages the application lifecycle, rendering, entities, and game logic
CAEntity	Represents an entity in the game engine with position, rotation, scale and components
CAFace
CAMesh	Represents a mesh object in the ANVIL engine with vertices, indices, and texture support
CAMeshHeader
CAMeshLoader
CAModel
CAnvilInput	A static class for handling keyboard input using GLFW
CAnvilPhysics	A physics system class using ReactPhysics3D engine for physics simulation
CAnvilRaycastCallback
CAPhysicsWorld
CPhysicsData
CAPlane
CAResourceManager
CAShader
CATexture
CATriggerVolume
CAVertex
CCGame
CIComponent	Abstract base class that defines the interface for all components in the ANVIL engine. Components are modular parts that can be attached to entities to give them specific functionality
CIGame
CMeshComponent
CMVertex
CMyContactListener
CRaycastHit
CRigidBodyComponent