// ----------------------------------------------------------------------
public static bool IsPositionOnRectEdge(Vector2 pos, Rect r, iCS_EdgeEnum edge)
{
float maxDistance = iCS_EditorConfig.PortDiameter;
float distance = 2f * maxDistance;
float leftX = r.xMin;
float rightX = r.xMax;
float topY = r.yMin;
float bottomY = r.yMax;
switch (edge)
{
case iCS_EdgeEnum.Top:
distance = Math3D.DistanceFromHorizontalLineSegment(pos, leftX, rightX, topY);
break;
case iCS_EdgeEnum.Bottom:
distance = Math3D.DistanceFromHorizontalLineSegment(pos, leftX, rightX, bottomY);
break;
case iCS_EdgeEnum.Left:
distance = Math3D.DistanceFromVerticalLineSegment(pos, topY, bottomY, leftX);
break;
case iCS_EdgeEnum.Right:
distance = Math3D.DistanceFromVerticalLineSegment(pos, topY, bottomY, rightX);
break;
}
return(distance <= maxDistance);
}
// ----------------------------------------------------------------------
// Returns true if the distance to parent is less then twice the port size.
public bool IsNearParentEdge(iCS_EditorObject port, iCS_EdgeEnum edge = iCS_EdgeEnum.None)
{
var parent = port.ParentNode;
var pos = port.GlobalPosition;
return(parent.IsPositionOnEdge(pos, (edge != iCS_EdgeEnum.None ? edge : port.Edge)));
}
// ----------------------------------------------------------------------
public bool IsPortOnRectEdge(Rect r, iCS_EdgeEnum edge)
{
return(IsPositionOnRectEdge(GlobalPosition, r, edge));
}
// ----------------------------------------------------------------------
public bool IsPortOnNodeEdge(iCS_EditorObject node, iCS_EdgeEnum edge)
{
return(IsPortOnRectEdge(node.GlobalRect, edge));
}
// ----------------------------------------------------------------------
// Updates the port edge information from the port type.
public void UpdatePortEdge(Vector2 localPosition)
{
Edge = GetClosestEdge(localPosition);
}
// ----------------------------------------------------------------------
// Return true if the position is on the edge of the node.
public bool IsPositionOnEdge(Vector2 position, iCS_EdgeEnum edge)
{
return(IsPositionOnRectEdge(position, GlobalRect, edge));
}