@Sarge the numbers have a logic! even if it is not super clear :D
-2 to 0 = no plant so when the cow moves there it receives no "food"
1 to 2 = young plant, the cow will receive 1 food point
3 = full grown plant, the cow will receive 2 food points
4 = old plant, the cow will receive 1 food point, could probably change it to 0 to make the game a bit harder
also when a plant dies (after 4) it will become compost making the next plant to grow faster
I have to find a way to communicate this in a visual way, suggestion? :)