Collision detection. We have to do 2 detections so for him walking I have a wall where is detects on the left side so to do that. You make a wall a symbol and In ActionScript, there are two methods of the DisplayObject class that provide collision detection capabilities. These are:
hitTestObject() - checks whether the bounding boxes of any objects intersect.
hitTestPoint() - checks whether a certain x-y coordinate intersects with an object
I Used hitTestObject object which is the simplest of the two.
example code
if(wall.hitTestObject(man))
This is my wall I know it doesn't look like much of a wall but it will also I have coded in a text-field. So when you Hit it will trace out hit and on the stage. I haven't figured out how to stop him going through the wall yet.