Screen movement

[ashmills]

okay ... I have a game i'm trying to make a rough engine for ... and I'd like some screen motion ... let me explain

I have a viewable area of 550 x 400 but would like the actual stat be about 1650 x 1200. So basically a 3x3 square of 550 x 400. Now I would liek the screen to move with my hero unless it is on the edge ...

|_a_|_b_|_c_|
|_d_|_e_|_f_|
|_g_|_h_|_i_|

Okay lets say that is the set up ... I'm in "e" if i walk towards "d" the viewable area move to the left untl all of "d" is viable and then my hero just moves towards the wall withouth the screen moving.

I hope I explained this right. Any help is appreciated...

oh yeah this is what I got so far http://fable.abuseadam.com/town.html. Signs and items can be looked at with SPACE by the by.

My hero moves with this code from Ed Mack(?) inthe hittest topic:

onClipEvent(load){
	s = 10;
	r = 5;
	b = this.getBounds(this);

	function move(x,y){
		if(!_root.hit.hitTest(_x+x+b.xmin+1, _y+y+b.ymin+1, true)){
			if(!_root.hit.hitTest(_x+x+b.xmax-1, _y+y+b.ymin+1, true)){
				if(!_root.hit.hitTest(_x+x+b.xmin+1, _y+y+b.ymax-1, true)){
					if(!_root.hit.hitTest(_x+x+b.xmax-1, _y+y+b.ymax-1, true)){
						_x += x;
						_y += y;
					}
				}
			}
		}
	}
}

onClipEvent(enterFrame){
	if(Key.isDown(Key.UP)){
		move(0,-s);
	}
	if(Key.isDown(Key.UP) && Key.isDown(Key.CONTROL)){
		move(0,-r);
	}
	if(Key.isDown(Key.DOWN)){
		move(0,s);
	}
	if(Key.isDown(Key.DOWN) && Key.isDown(Key.CONTROL)){
		move(0,r);
	}
	if(Key.isDown(Key.LEFT)){
		move(-s,0);
	}
	if(Key.isDown(Key.LEFT) && Key.isDown(Key.CONTROL)){
		move(-r,0);
	}
	if(Key.isDown(Key.RIGHT)){
		move(s,0);
	}
	if(Key.isDown(Key.RIGHT) && Key.isDown(Key.CONTROL)){
		move(r,0);
	}
}