Tetrish

• Similar to Tetris®; Tetris-ish; Tetrish
• Written in ClojureScript with core.async

Where to play

• https://hacks.fearnoeval.com/tetrish/

How to play

• ↑: Rotate
• ↓: Soft drop
• ←: Left
• →: Right
• S: Save
  • A prompt will pop up that has the full game state as JSON in the input field
  • Game state can be copied out, saved for later, investigated, modified, etc.
• L: Load
  • Prompts for a saved game state
  • Saved game state must be in the same format as that created via S
  • Invalid game states are ignored, continuing the game already in progress
• F5: New Game

How to build and run locally

1. Install Leiningen
2. Run lein cljsbuild once
3. Open resources/index.html in your web browser of choice

Notes

• The game is fully data-driven, in that all of the game state is stored in a single map
• Rotation behaves the same as NES Tetris, not how later versions behave
• As an experiment, DOM string generation and insertion for the entire game UI happens on every state change
  • I was curious if this would be performant enough, and for something this basic, it is (tested using Chrome 47+)
• Includes a basic, protocol-based, ClojureScript version of Hiccup
• Written in January 2016

Bugs as features

• "Where's the next piece?"
  • Marketing: Tetrish is only available in hard mode
  • Truth: I forgot
• "How do I hard drop?"
  • Marketing: Tetrish is only available in hard mode
  • Truth: I forgot
• "Why can't I play on mobile?"
  • Marketing: Playing Tetrish on mobile enables infinitely-hard mode
  • Truth: I did a quick attempt at this, but getting swipe up, down, left, and right to control the game instead of scrolling was not working so well

License

• © 2016-2017 Tim Walter
• Licensed under the Eclipse Public License 1.0
• Tetris is a registered trademark of Tetris Holding