Rotation Problem

[tumms]

Alright, sooo I created a 'shotgun'. Its positioned at the bottom middle of the screen. I want it to rotate so that it follows the mouse.

onClipEvent (enterFrame) {
	var dy = _y-(_root._ymouse*-1);
	//Adjacent Triangle distance
	var dx;
	//Declares opposite distance
	var angle;
	//angle from Adj to hyp.
	if (_root._xmouse<_x) {
		dx = _x-_root._xmouse;
		angle = tan(dx/dy);
		_rotation = angle+90;
	} else {
		dx = _root._xmouse-_x;
		angle = tan(dx/dy);
		_rotation = 90-angle;
	}
}

What did I do wrong?

[Genesis F5]

Hi, Tumms. Welcome to the forums.

Try this code instead:

onClipEvent (enterFrame) {
	mox = _root._xmouse;
	moy = _root._ymouse;
	_rotation = Math.atan2(moy - _y,mox - _x) * 180 / Math.PI + 90
}

Unless you need to use the mouse position coordinates again, just take the variables out and put _root._xmouse and _root._ymouse directly into the equation. I just did it that way for readability.

[tumms]

Works perfectly, thanks! Whats the difference between Math.tan, Math.atan, and Math.atan2?

One more thing, I'm trying to have bullet holes, but it only keeps one bullet hole when I click. When I click it keeps the black dot but when I click somewhere else the black dot moves, it doesnt duplicate. So..what'd I do wrong with this code? (Thankyou for all your help)

onClipEvent (mouseDown) {
	_root.bull._x = _root._xmouse;
	_root.bull._y = _root._ymouse;
	var amount = 10;
	var i;
	while (amount>0) {
		duplicateMovieClip(_root.bull, "mc"+i, i);
		amount--;
		i++;
	}
}

[Aldarn]

The depth (i) is being reset each time you click so its overwriting the other.

P.S. Angle code doesn't work for me in Flash 8.