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Shedding Snake js1024

Shedding Snake is a contribution to js1024, an annual javascript golfing competition with a max size of 1kb (1024 bytes), no shim category.

The minfied build is exactly 1024 bytes:

  • 51 bytes HTML/CSS
  • 34 bytes text
  • 28 bytes of emojis (7 emojis requiring 4 bytes each)
  • 911 bytes javascript (not counting the 34+28 bytes above)

Play the game at JS1024.fun

Entire code base of 1024 bytes:

code base

About

Eat apples to grow and shed your skin. Avoid colliding with yourself or skin waste or you'll die. Try to beat the hiscore! Can you reach 25? (Not me 😜) Controls: WASD or Arrow keys.

game play

Features that ate bytes

1024 is actually more than enough for a snake game. The extra bytes went into: The snake shed it skin each time it grows. Rotate snake face to current direction. Title screen. Skin pattern and emojis :-). Score and hiscore. I fought one last hour to get a flashing "Press S" into the game.

How to run

Open the html-file in a modern browser. You can probably just double click it.

How to build

The script has been minified in two steps.

  1. Custom node script Run node shorten-stuff.js in the src folder.
  2. Terser online Paste the generated shortened-script.js into terser. With Regpack(JS) turned on there are actually 60 bytes left, enough to center the game or something, but I didn't know about that option.

Create a html <canvas id=a style="height:99%"/><script>[CODE]</script> to get an 1kb html-file. Add <meta charset="UTF-8" /> at top or the emojis will look strange (js1024.fun site already have this meta tag).