Robot Remote Control
The world for this exercise is similar to the First Encounter world in Chapters 2-4. In this world, however, we want to allow the user to control the robot using some sort of remote control. One possibility is to use the Two Button switch (Controls) to simulate a robot control system. When the user clicks the green button on the switch, the robot should move forward, with two of its legs providing a walking motion. When the user clicks the red button on the switch, the robot should move backward, with two different legs walking in the opposite direction. Use the world level function ask the user for a number to allow the user to determine how many meters the robot moves forward or backward.
