I have a tilemap 20*15 and have created a house with two rooms
it looks something like this:

---------------------
| | |
|room1| r |
| | o |
|--- ---- o |
| m |
| 2 |
|--------------------


I've created a simple AI that makes i Circle move from til X to tile Y
very easily. But I have some problems making them move so that they avoide the wall. Can anybody help me? please?

In advance, thank you very much