HammerspoonBounce

hammerspoonbounce.lua

direction = "downright"
animate = false
hs.hotkey.bind({"cmd", "alt", "ctrl"}, "M", function()
  animate = not animate
  window = hs.window.focusedWindow()
  width = hs.screen.primaryScreen():fullFrame().w
  height = hs.screen.primaryScreen():fullFrame().h
  hs.timer.doWhile(function() return animate end, function()
    frame = window:frame()
    if direction == "downright" then
      if (frame.x + frame.w + 4) >= width then
        direction = "downleft"
      elseif (frame.y + frame.h + 4) >= height then
        direction = "upright"
      end
      window:move(hs.geometry.point(4, 4))
    elseif direction == "downleft" then
      if (frame.x - 4) <= 0 then
        direction = "downright"
      elseif (frame.y + frame.h + 4) >= height then
        direction = "upleft"
      end
      window:move(hs.geometry.point(-4, 4))
    elseif direction == "upright" then
      if (frame.x + frame.w + 4) >= width then
        direction = "upleft"
      elseif (frame.y - 4) <= 23 then
        direction = "downright"
      end
      window:move(hs.geometry.point(4, -4))
    elseif direction == "upleft" then
      if (frame.x - 4) <= 0 then
        direction = "upright"
      elseif (frame.y - 27) <= 0 then
        print("changing")
        direction = "downleft"
      end
      window:move(hs.geometry.point(-4, -4))
    end
  end, 0.01)
end)