minecraftbucuo/gameengine

How minecraftbucuo/gameengine works

GameEngine is a C++/SDL3/Box2D framework whose showcased product is a Super Mario game, supporting local single-player and networked multiplayer, plus desktop and Web clients and a headless server. The main flow is launch → engine initialization and scene selection → per-frame scene updates and rendering, or server ticks; scenes coordinate gameplay, physics, and networking. README capabilities are represented using paths from the tree; unsampled subsystem wiring is not asserted beyond documented behavior and visible engine calls.

Main entry points: GameEngine.cpp Game engine · SceneManager.cpp Scene manager · SuperMarioSceneMultiplayer.cpp Multiplayer scene · RendererSDL3.cpp SDL renderer

Components 23

Runtime and scenes

Program entry src/main.cpp
Game engine src/GameEngine.cpp
Scene manager src/Manager/SceneManager.cpp
Menu scene src/Scene/MenuScene.cpp
Settings scene src/Scene/SettingsScene.cpp
Single-player scene src/Scene/SuperMarioSceneSingle.cpp
Multiplayer scene src/Scene/SuperMarioSceneMultiplayer.cpp

Gameplay simulation

Map loading src/Scene/MapLoader.cpp
Game objects src/GameObjects/GameObject.cpp
Gameplay components src/Components/Component.cpp
Mario controls src/Components/MarioController.cpp
Mario state machine src/State/StateMachine.cpp
Box2D physics src/Physics/PhysicsWorld.cpp
Collision system src/CollisionSystem.cpp

Client presentation

SDL renderer src/Render/RendererSDL3.cpp
Asset manager src/Manager/AssetManager.cpp
Animation frames src/Manager/FrameManager.cpp

Configuration and networking

Configuration src/Manager/ConfigManager.cpp
Network manager src/Network/NetworkManager.cpp
TCP transport src/Network/TcpClient.h

Other components

Player
Game server
WebSocket bridge

Connections 31

Player → Program entry: launches
Program entry → Game engine: initializes and starts
Game engine → Configuration: loads
Game engine → Asset manager: loads resources
Game engine → Animation frames: loads frames
Game engine → SDL renderer: creates window
Game engine → Scene manager: creates and updates
Scene manager → Menu scene: selects scene
Scene manager → Settings scene: selects scene
Scene manager → Single-player scene: selects scene
Scene manager → Multiplayer scene: selects scene
Game engine → SDL renderer: polls events; presents frames
Single-player scene → Map loading: loads level
Multiplayer scene → Map loading: loads level
Single-player scene → Game objects: runs gameplay
Multiplayer scene → Game objects: runs gameplay
Game objects → Gameplay components: uses
Gameplay components → Mario controls: includes
Mario controls → Mario state machine: changes state
Gameplay components → Box2D physics: simulates bodies
Box2D physics → Collision system: reports contacts
Single-player scene → SDL renderer: renders scene
Multiplayer scene → SDL renderer: renders scene
SDL renderer → Asset manager: gets textures
Animation frames → Asset manager: gets texture handles
Multiplayer scene → Network manager: updates session
Network manager → TCP transport: sends and receives
Game server → Network manager: connects by TCP
Player → Network manager: connects directly
WebSocket bridge → Game server: forwards WebSocket to TCP
Settings scene → Configuration: edits settings

More C++ diagrams: ncmreynolds/ld2410 · opensourcesourcetrail/sourcetrail · sparcians/map · wasdwasd0105/superwifiduck · jqssun/android-display-mirror

Drawn by GitDiagram on September 28, 2026 from the repository's file tree, README and source files. Read as Markdown ·