* `heading` the heading the robot must be facing at the end
* `heading` the heading the robot must be facing at the end
* `maximum-speed` the maximum speed that the robot need to drive
* `maximum-speed` the maximum speed that the robot need to drive
* `explore` drives the robot to random location near the current location of the robot, according to the following parameters:
* `explore` drives the robot to random location **near the current location** of the robot, according to the following parameters:
* `radius` the radius around the start location used to generate new location. The start location is the position of the robot when the explore starts.
* `radius` the radius around the start location used to generate new location. The start location is the position of the robot **when the explore starts**.