Rotation of mc by dragging

[dionysus74075]

OK, I have a wheel with specific values I want users to be able to see when they rotate the wheel to a certain point... the problem is that right now when you go to press and drag the wheel (which is a mc called mcMain) it jumps to a certain point then you can drag normally and it works fine... ideas? I think I need to take a different approach.


mcMain.onPress = function() {
scrolling = true;
}
mcMain.onRelease = mcMain.onReleaseOutside=function () {
scrolling = false;
}
ab = _root.createEmptyMovieClip("temp", 1)
ab.onEnterFrame = function() {
if (scrolling) {
var dx = _xmouse-mcMain._x;
var dy = _ymouse-mcMain._y;
var rad = Math.atan2(dy, dx);
if (rad<0) {
rad += Math.PI*2;
}
angle = (rad*180)/Math.PI;
mcMain._rotation = angle;

}
}

 

[dionysus74075]

OK, I have a mc called (as you can see below) mcMain... it's a wheel that I want to turn and it contains specific values that I want a user to be able to scroll to.
The problem I'm having is that when you press the wheel it jumps to a certain point on the wheel rather than just beginning to drag from wherever I press... it then drags normally as you rotate it CW, CCW, 360, etc. Ideas?


mcMain.onPress=function(){
pressing=true
}
mcMain.onRelease=mcMain.onReleaseOutside=function(){
pressing=false
}
_root.onEnterFrame=function(){
if(pressing){
rad=Math.atan2((_ymouse-mcMain._y),(_xmouse-mcMain._x));
degrees=Math.round(rad*180/math.PI);
mcMain._rotation= degrees+90
}
}

 

[benny2168]

hey
ok i tried out your code and i see what you mean

heres the fix:

1)double click to enter your mcMain movie clip

2)you should see a little + somewhere, which tells your where the movie clip origin is for its axis

3)make sure the center of your wheel graphic is aligned with the center of this +

(use the align panel for this)

 

[dionysus74075]

no... the origin isn't the problem... it actually rotates the circle to another location then begins to drag... it does rotate/drag on it's origin just fine. I want it to begin drag from the location where I press and not move until I actually drag. In other words, I want to be able to press on the circle anywhere and it won't move until I begin to drag. As it is now, there is only one location on the circle where that happens and I want it to just start drag from anywhere on the circle... well, except the center I guess...