public virtual void DoSnap()
{
if (!InputHandler.IsKeyPushedDown(System.Windows.Forms.Keys.ShiftKey) || connectedLines.Count == 0 || !(connectedLines[0] is FootholdLine))
{
return;
}
FootholdAnchor closestAnchor = null;
double closestAngle = double.MaxValue;
bool xClosest = true;
foreach (FootholdLine line in connectedLines)
{
FootholdAnchor otherAnchor = (FootholdAnchor)(line.FirstDot == this ? line.SecondDot : line.FirstDot);
double xAngle = Math.Abs(Math.Atan((double)(Y - otherAnchor.Y) / (double)(X - otherAnchor.X)));
double yAngle = Math.Abs(Math.Atan((double)(X - otherAnchor.X) / (double)(Y - otherAnchor.Y)));
double minAngle;
bool xSmaller = false;
if (xAngle < yAngle)
{
xSmaller = true; minAngle = xAngle;
}
else
{
xSmaller = false; minAngle = yAngle;
}
if (minAngle < closestAngle)
{
xClosest = xSmaller; closestAnchor = otherAnchor; closestAngle = minAngle;
}
}
if (closestAnchor != null)
{
if (xClosest)
{
Y = closestAnchor.Y;
}
else
{
X = closestAnchor.X;
}
}
}
