A flag variable is a variable used to keep track of something that has two states, for example a door, which can only be open or closed. Because it only keeps track of two states, it can have only two values, either 0 or 1. In the case of the door, it is 0 if it is open, and 1 if it is closed.

Specific flag variables

• Jump Flag - whether or not a character can jump.
• State Variable - a more advanced version of the flag variable.

Related Pages

• State Variable
• Variable