Maze: Wall follower problem - Help needed

Hi I am trying to write a maze solver for Passive objects 1x1x1. The robot solver is decided to move only forward, rotating 90 degrees (or any other) to left or right to represent direction.
I have decided to do it using wall following but here's my problem. Since the only way I could figure out how to make my robot move along the wall was to use llMoveToTarget which only moves forward, I can't get it to sense either with collision functions either with sensing functions which way to turn to follow the wall accurately.

I am stuck and need desperate help. If anyone has any suggestions or need more information on anything please feel free anytime.

Thanks



The robot has been implemented using an API script to map the maze to grid. Thanks for any help

the IBM sim had a robot script that did this ill see if i can find the LM
found it, IBM Labyrinth

To make your robot turn try llLookAt, llRotLookAt().