Real-time simulation engine with dedicated thread loop managing actor positions, time acceleration, and UI event handling. The main thread continuously refreshes actor coordinates, simulation clock, and graph structure while responding to pause/play, acceleration, and reset controls. Event-driven architecture processes user interactions and updates the visual interface each frame, enabling responsive interactive simulations. Fork this flowchart on Diagrams.so to customize state transitions, add physics substeps, or integrate networking for multiplayer scenarios. This pattern scales to complex agent-based models by separating simulation logic from rendering and input handling.