coins = {}

function spawnCoin(x, y)
  local coin = {}
  coin.x = x
  coin.y = y

  coin.grid = anim8.newGrid(41, 42, 123, 126)
  coin.animation = anim8.newAnimation(coin.grid('1-3', 1, '1-3', 2, '1-2', 3), 0.1)

  table.insert(coins, coin)
end