Constraining drag and drop more effectively!

programming flash
1

Hi,

I’ve got a movie clip that the user can pick up and move around the screen using drag and drop via actionscript. I’m trying to constrain the movie clip though - I want to limit where the movie clip can move to.

No problem, I thought - yet I’m now stuck. I want to contrain the movieClip around the top of a circle - i.e. not in a normal rectangle, but rather an oval.

I’m currently using a function to check where the mouse is, and if in a certain location, it changes the top boundary. However, there surely has to be an easier way? Any ideas?

function testarea() {
	
				if (_root._xmouse>=224 && _root._xmouse<230) {
					topBoundary = 275;
				}
				if (_root._xmouse>=169 && _root._xmouse<224) {
					topBoundary = 273;
				}
				if (_root._xmouse>=135 && _root._xmouse<169) {
					topBoundary = 270;
				}
				if (_root._xmouse>=100 && _root._xmouse<135) {
					topBoundary = 266;
				}
				if (_root._xmouse>=80 && _root._xmouse<100) {
					topBoundary = 262;
				}
				if (_root._xmouse>=70 && _root._xmouse<80) {
					topBoundary = 258;
				}
				if (_root._xmouse>=60 && _root._xmouse<70) {
					topBoundary = 256;
				}
				if (_root._xmouse>=50 && _root._xmouse<60) {
					topBoundary = 252;
				}
				if (_root._xmouse>=40 && _root._xmouse<50) {
					topBoundary = 250;
				}
				if (_root._xmouse>=30 && _root._xmouse<40) {
					topBoundary = 248;
				}
				if (_root._xmouse>=20 && _root._xmouse<30) {
					topBoundary = 244;
				}
				if (_root._xmouse>=230 && _root._xmouse<326) {
					topBoundary = 275;
				}
				if (_root._xmouse>=326 && _root._xmouse<381) {
					topBoundary = 273;
				}
				if (_root._xmouse>=381 && _root._xmouse<415) {
					topBoundary = 270;
				}
				if (_root._xmouse>=415 && _root._xmouse<450) {
					topBoundary = 266;
				}
				if (_root._xmouse>=450 && _root._xmouse<470) {
					topBoundary = 262;
				}
				if (_root._xmouse>=470 && _root._xmouse<480) {
					topBoundary = 258;
				}
				if (_root._xmouse>=480 && _root._xmouse<490) {
					topBoundary = 256;
				}
				if (_root._xmouse>=490 && _root._xmouse<500) {
					topBoundary = 252;
				}
				if (_root._xmouse>=500 && _root._xmouse<510) {
					topBoundary = 250;
				}
				if (_root._xmouse>=510 && _root._xmouse<520) {
					topBoundary = 248;
				}
				if (_root._xmouse>=520 && _root._xmouse<530) {
					topBoundary = 244;
				}
	}
}

Any help most welcome :thumb2: