public override IHoverData GetHoverData(MapGraphics graphics)
{
var radius = Size / graphics.MapViewScaleValue;
var cursorPos = graphics.mapCursorPosition;
var closestDist = float.PositiveInfinity;
if (!graphics.IsMouseDown(0))
{
hoverData.currentPositionAngle = null;
foreach (var a in positionAngleProvider())
{
if (graphics.view.mode == MapView.ViewMode.TopDown)
{
if ((new Vector3((float)a.X, cursorPos.Y, (float)a.Z) - cursorPos).LengthSquared < radius * radius)
{
hoverData.currentPositionAngle = a;
break;
}
}
else if (graphics.view.mode == MapView.ViewMode.Orthogonal)
{
var projectedPos = Vector3.TransformPosition(a.position, graphics.ViewMatrix);
projectedPos.X = (1 + projectedPos.X) * graphics.glControl.Width / 2;
projectedPos.Y = (1 - projectedPos.Y) * graphics.glControl.Height / 2;
if ((projectedPos.Xy - graphics.mousePosition2D).LengthSquared < (Size * Size))
{
hoverData.currentPositionAngle = a;
break;
}
}
else if (graphics.view.mode == MapView.ViewMode.ThreeDimensional)
{
var rad = Size * Get3DIconScale(graphics, (float)a.X, (float)a.Y, (float)a.Z);
var lineEnd = graphics.cursorOnMap ? graphics.mapCursorPosition
: graphics.view.position + Vector3.Normalize(graphics.mapCursorPosition - graphics.view.position) * 10000;
if ((ProjectOnLineSegment(a.position, graphics.view.position, lineEnd) - a.position).Length < rad)
{
var newDist = (a.position - graphics.view.position).LengthSquared;
if (closestDist > newDist)
{
hoverData.currentPositionAngle = a;
closestDist = newDist;
}
}
}
}
}
return(hoverData.currentPositionAngle != null ? hoverData : null);
}