local player = players[name]
player.rockImages = {}
for x = 1, puzzle.w do
  player.rockImages[x] = {}
  for y = 1, puzzle.h do
    local pieceX = (x - 1) * puzzle.pieceW + puzzle.x
    local pieceY = (y - 1) * puzzle.pieceH + puzzle.y
    player.rockImages = tfm.exec.addImage(...)
  end
end