SCRIPT-8

README.md

This is a SCRIPT-8 cassette. Click here to boot it.

code.js

// title: Wobbly circle

initialState = {
  x: 64,
  y: 64,
  r: 1,
  dr: 1
}

update = (state, input, elapsed) => {
  state.x += random(-1, 1)
  state.y += random(-1, 1)
  state.x = clamp(state.x, 0, 128)
  state.y = clamp(state.y, 0, 128)
  state.r += state.dr
  state.dr *= state.r > 63 || state.r < 2 ? -1 : 1
}

draw = state => {
  clear()

  range(state.r)
    .reverse()
    .forEach((r, i) => {
      circFill(state.x, state.y, r * 1, i)
    })
}