- amount of food (regenerates 0-255) (display as tile)
- if no food is nearby some ants die
- if food is nearby ants spawn and food is collected
+ - food spreads to a nearby tile if food reaches 255
- food tiles cannot be occupied, only collected from
- flags
- special tile type: e.g. hive
[ ] actions can only be performed when the player controls an adjacent tile
display error if action is not possible
[ ] select actions from a menu when clicking on a tile
+[ ] allow withdrawing from a tile