alexsander532/atlas/2d-games
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2D game development principles. Sprites, tilemaps, physics, camera.
Install
npx vskill@latest install alexsander532/atlas/2d-gamesSKILL.md
The same SKILL.md was published earlier as davila7/claude-code-templates/2d-games.
2D Game Development
Principles for 2D game systems.
1. Sprite Systems
Sprite Organization
| Component | Purpose | |
|---|---|---|
| Atlas | Combine textures, reduce draw calls | |
| Animation | Frame sequences | |
| Pivot | Rotation/scale origin | |
| Layering | Z-order control |
Animation Principles
- Frame rate: 8-24 FPS typical
- Squash and stretch for impact
- Anticipation before action
- Follow-through after action
2. Tilemap Design
Tile Considerations
| Factor | Recommendation | |
|---|---|---|
| Size | 16x16, 32x32, 64x64 | |
| Auto-tiling | Use for terrain | |
| Collision | Simplified shapes |
Layers
| Layer | Content | |
|---|---|---|
| Background | Non-interactive scenery | |
| Terrain | Walkable ground | |
| Props | Interactive objects | |
| Foreground | Parallax overlay |
3. 2D Physics
Collision Shapes
| Shape | Use Case | |
|---|---|---|
| Box | Rectangular objects | |
| Circle | Balls, rounded | |
| Capsule | Characters | |
| Polygon | Complex shapes |
Physics Considerations
- Pixel-perfect vs physics-based
- Fixed timestep for consistency
- Layers for filtering
4. Camera Systems
Camera Types
| Type | Use | |
|---|---|---|
| Follow | Track player | |
| Look-ahead | Anticipate movement | |
| Multi-target | Two-player | |
| Room-based | Metroidvania |
Screen Shake
- Short duration (50-200ms)
- Diminishing intensity
- Use sparingly
5. Genre Patterns
Platformer
- Coyote time (leniency after edge)
- Jump buffering
- Variable jump height
Top-down
- 8-directional or free movement
- Aim-based or auto-aim
- Consider rotation or not
6. Anti-Patterns
| ❌ Don't | ✅ Do | |
|---|---|---|
| Separate textures | Use atlases | |
| Complex collision shapes | Simplified collision | |
| Jittery camera | Smooth following | |
| Pixel-perfect on physics | Choose one approach |
Remember: 2D is about clarity. Every pixel should communicate.
Security
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Source
- SKILL.md in the repositoryCheckingskills_antigravity/skills/game-development/2d-games/SKILL.md
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Works with
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