local amplitude = 128
local mouse_x = 0
local mouse_y = 0
local board_size = 8

--
-- constants
--

local BLUE = 2
local YELLOW = 1

-- 🅾️ Z[C]N ❎ [X]VM
-- X and C have the same position on QWERTY and AZERTY
local LEFT, RIGHT, UP, DOWN, BTN_O, BTN_X = 0, 1, 2, 3, 4, 5

local patterns = {
  0b0000000000000000,
  0b1000000000000000,
  0b1000000000100000,
  0b1010000000100000,
  0b1010000010100000,
  0b1010010010100000,
  0b1010010010100001,
  0b1010010110100001,
  0b1010010110100101,
  0b1110010110100101,
  0b1110010110110101,
  0b1111010110110101,
  0b1111010111110101,
  0b1111110111110101,
  0b1111110111110111,
  0b1111111111110111,
  0b1111111111111111
}