Game Engine Architecture
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Use a game engine to create a video game. Its reusable components provide the general functionality. Define resources and building blocks. What are the key elements of a game engine?
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Game Engine Architecture
- 3. MAIN CLASSES
- 4. VIEW CONTROLLER, VIEW • Update loop • Render loop • Events
- 5. SCENE MANAGER • Called on update and render cycles • Swaps scenes • Handles events
- 6. SCENE • Content into scenes • Nodes to be rendered • Per-frame processing
- 7. NODE • Basic elements • Tree hierarchy • Applies selected properties from its parent
- 8. RESOURCES
- 9. TEXTURES • Graphical data • Avoid multiple memory usage • Preloading
- 10. FONTS • Image, or • Pre-generated bitmap from vector font
- 11. SOUNDS • Short sound effects • Instant play • Simultaneous play • Uncompressed data • Preloading
- 12. SHADERS • Programs for GPUs • Visual effects • Less CPU usage
- 13. MATERIALS • Lighting properties • Shader Program selection • Used by Buffer Nodes
- 14. VERTEX AND INDEX BUFFER • Vertex data • Index data • Points, lines, or triangles • Owned by Buffer Nodes
- 15. NODES
- 16. BUFFER NODE • Draws aVertex Buffer • Index Buffer is optional
- 17. SPRITE NODE • Textured sprite • Rectangular 2D image • Clipping
- 18. LABEL NODE • Draws a string • Uses Font resource • Align modes • Word-wrap • Clipping
- 19. EMITTER NODE • Particle systems • Visual effects • Own coordinate-system • Source of particles
- 20. CAMERA NODE • Represents the viewer’s point of view • Used by the Render Pipeline
- 21. LIGHT NODE • Ambient, directional, point source • Lighting is enabled by the used Material • Limited count
- 22. SOUND NODE • Plays a sound • 3D or stereo sound effect by its position • Attach to graphical representation
- 23. MUSIC NODE • Plays the background music • Single • Compressed data • Buffered play • Looping
- 24. RENDER PIPELINE
- 25. RENDER PIPELINE • Executed on render cycle • For the presented scene • Single or multiple steps
- 26. RENDER STEP • Selects destination buffer • Specifies root source node (generally the scene) • Uses a camera for the point of view
- 27. OTHER COMPONENTS
- 28. GAME RELATED • 2D or 3D physics simulation • Game Center or similar gaming network
- 29. MONETIZATION, MEDIA • In-app purchases • Advertising • Social media interactions
- 30. by Attila Jenei ! http://www.attilajenei.com Game Engine Architecture