Pacman

• The game area has a specific size. Going through one side of the area makes the player appear on the
  opposite side. All cells that are not walls may be walked through and contain “pacgums”.
• In the middle of the map is a small 5-cell-wide and 4-cell-high area that contains ghosts.
• Ghosts can get out of their box 10 seconds after the game starts.
• Pacman starts the game right under the ghosts.
• Some special, larger “pacgums” let Pacman eat ghosts. This effect lasts 10 seconds. During this period,
  ghosts become blue and flee Pacman instead of hunting him. Their movement speed is slower during
  this time. There are only 4 “pacgums” of this kind on the map.
• When Pacman eats a ghost, only its eyes remain. These eyes quickly go back to the ghost box, where
  the ghost is healed after a short period of time.
• The player wins when Pacman eats all the “pacgums”. A new map is loaded after that, or the current
  one is reloaded and movement is accelerated.
• On screen, Pacman and ghosts must not move cell by cell, but sm

Start by reviewing the repository structure and existing game architecture, then use the Pacman requirements in this issue as the checklist. Done means the map, movement, ghosts, power-ups, scoring, win flow, and visual movement behavior described here are implemented and working together.