Get point in rotating mc (AS2)

[souled]

How do I get the point inside a rotating movie clip from a point outside of it? Let me show you:

Here I have a movie clip, square, and a point inside it, point.
SWF
The code is:

function onMouseDown()
{
	square.point._x = _xmouse - square._x;
	square.point._y = _ymouse - square._y;
}

And that is all well and good. But when the square rotates:
SWF
Code:

function onMouseDown()
{
	square.point._x = _xmouse - square._x;
	square.point._y = _ymouse - square._y;
}
function onEnterFrame()
{
	square._rotation++;
}

You see the problem. How would I deal with this?

[LeechmasterB]

Check wikipedia on "polar coordinates"

[knugen]

It can be done manually with some trig, or with the help of localToGlobal() :)

[K-Guare]

At 11/4/09 05:44 PM, knugen wrote: It can be done manually with some trig, or with the help of localToGlobal() :)

Yep yep, local to global does it for you.
As you can see, k-guare slowly prepared a dandy little example while
knugen went and answered the question. :)

This code uses the same instance names as in yours, so
it's pretty much copy/pasteable. Not that I endorse that, though.

onEnterFrame = function() {
	square._rotation++;
}
onMouseDown = function() {
	var globalPoint:Object = {x:_xmouse, y:_ymouse};
	square.globalToLocal(globalPoint);
	square.point._x = globalPoint.x;
	square.point._y = globalPoint.y;
}

Sorry it took me so long,
localToGlobal in AS2 is a lot different than in AS3, had to figure it out. :/

[souled]

Oh wow, thanks, didn't know about that.

[liaaaam]

At 11/4/09 06:12 PM, K-Guare wrote: Sorry it took me so long,
localToGlobal in AS2 is a lot different than in AS3, had to figure it out. :/

The only difference is that localToGlobal in AS3 returns a Point rather than altering the given Point, right? :P