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2d-games
2D game development principles. Sprites, tilemaps, physics, camera.
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2026-02-27
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.
When to Use
This skill is applicable to execute the workflow or actions described in the overview.
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