On Sep 12, 2012, at 5:09 AM, iQue <[email protected]> wrote:
>
> this gives a weird result where 90% of the time the "stick" will set its
> position to 0,0 when I try to use it.
>
Yup, I made a huge mistake there. Here's revised code;
Point imageCenter = new Point(25, 25);
Point touchPos = new Point(5, 5);
int dx = touchPos.x - imageCenter.x;
int dy = touchPos.y - imageCenter.y;
float distance = FloatMath.sqrt(dx * dx + dy * dy);
final float radius = 25.0f;
if (distance > radius) {
touchPos.x = imageCenter.x + (int)(dx * radius / distance);
touchPos.y = imageCenter.y + (int)(dy * radius / distance);
}
Don't know what I was thinking about earlier...
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