CODE
set_drive_direction(direction)
Description
Can be called from a Drive Cubelet to change the direction of rotation.
Parameters
direction Can be either 'FORWARD' or 'BACKWARD'
Compatibility
Drive Blocks
Example
    void setup()
    {
        set_drive_direction(BACKWARD);
    }
    void loop()
    {
        think();
        act();
    }
    void think()
    {
        calculate_block_value();
    }
    void act()
    {
        set_drive(block_value);
    }