In the examples, you have kept the maps to a small area on the screen and at a low resolution, such as 800 × 600. In your own war games, you may want to have a really large battlefield. In this chapter, you will be looking at the size of the playing area, implementing a mini-map for larger games and when and why you implement Fog of War.
Fog of War is a term used in many war games to describe the visibility of the battlefield. Rather than allowing the player to see all enemy units or the whole map, introducing Fog of War means the player can only see a certain distance around each unit.