Sprack

A tool for packing sprites/lightmaps/whatever textures into atlases.

Written while learning Rust. Inspired by TeamHypersomnia/rectpack2D and @blackpawn's Packing Lightmaps text.

Suggestions are welcome!

TODO

• Base algorithm
• Sprite flipping support (attempt fit rotated by 90°)
• Heuristics
  • Sort by area
  • Sort by perimeter
  • Sort by max side
  • Sort by width
  • Sort by height
  • Sort by squareness × area
  • Sort by squareness × perimeter
• Demo rectangles packing, writing output images
• Picking best result
• Atlas compacting
• Atlas trimming
• Writing sprites
• Split code into two crates (bin and lib)
• Make lib crate extensible with custom heuristics
• Command-line argument processing
• Add metadata output
  • JSON
  • YAML
  • RON?
  • Protobuf?
• Use logger instead of println!
• Add manual and more details to README.md
• Multi-threading
• Tests?
• Benchmarks?
• Add optional border and padding?
• Refactor until feel pride