Core Game Architecture

Implement a time-step mechanism using delta time for frame-rate independent logic.

Separate a fixed-timestep update loop for physics from a variable-timestep render loop.

Design a basic Entity struct to represent any object in the game world.

Define core data components like Transform (position, rotation, scale) and PhysicsBody.

Implement a simple state machine to manage game states (e.g., main menu, playing, paused).