// Mouse moves
public override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (panning)
{
return; //mxd. Skip all this jass while panning
}
if (curControlHandle != -1)
{
ControlHandle handle = controlHandles[curControlHandle];
handle.Position = (snaptogrid ? General.Map.Grid.SnappedToGrid(mousemappos) : mousemappos);
if (form.MirrorMode)
{
Vector2D pos = handle.RelativePosition;
//handle angle
float angle = (float)Math.Atan2(-pos.y, -pos.x) + Angle2D.PIHALF;
//angle of line, connecting handles ControlledPoints
float dirAngle = -(float)Math.Atan2(handle.Pair.ControlledPoint.y - handle.ControlledPoint.y, handle.Pair.ControlledPoint.x - handle.ControlledPoint.x);
float length = (float)Math.Sqrt(Math.Pow(Math.Abs(pos.x), 2.0) + Math.Pow(Math.Abs(pos.y), 2.0));
float mirroredAngle = angle + dirAngle * 2.0f;
handle.Pair.RelativePosition = new Vector2D((float)Math.Sin(mirroredAngle) * length, (float)Math.Cos(mirroredAngle) * length);
}
else if (form.CopyMode)
{
handle.Pair.RelativePosition = handle.RelativePosition;
}
Update();
}
}
//this checks if initial data is valid
private bool Setup(List <Line> lines)
{
if (!SetupPointGroups(lines))
{
return(false);
}
//setup control handles
Vector2D center1 = CurveTools.GetPointOnLine(pointGroup1[0], pointGroup1[segmentsCount - 1], 0.5f);
Vector2D center2 = CurveTools.GetPointOnLine(pointGroup2[0], pointGroup2[segmentsCount - 1], 0.5f);
Vector2D loc1 = GetHandleLocation(pointGroup1[0], pointGroup1[segmentsCount - 1], center2);
Vector2D loc2 = GetHandleLocation(pointGroup2[0], pointGroup2[segmentsCount - 1], center1);
ControlHandle ch1 = new ControlHandle {
ControlledPoint = pointGroup1[0], RelativePosition = loc1
};
ControlHandle ch2 = new ControlHandle {
ControlledPoint = pointGroup2[0], RelativePosition = loc2
};
ControlHandle ch3 = new ControlHandle {
ControlledPoint = pointGroup1[segmentsCount - 1], RelativePosition = loc1
};
ControlHandle ch4 = new ControlHandle {
ControlledPoint = pointGroup2[segmentsCount - 1], RelativePosition = loc2
};
ch1.Pair = ch3;
ch2.Pair = ch4;
ch3.Pair = ch1;
ch4.Pair = ch2;
controlHandles = new[] { ch1, ch2, ch3, ch4 };
//setup relative segments lengths
relLenGroup1 = GetRelativeLengths(pointGroup1);
relLenGroup2 = GetRelativeLengths(pointGroup2);
return(true);
}