/// <summary>
/// Code to run in the legacy (Immediate Mode) GUI layer (Called by
/// MonoBehaviour every UI refresh). This code handles displaying vertices,
/// and checking when they are clicked.
/// </summary>
private void OnGUI()
{
foreach (ISelectable point in selMesh.GetAllPoints())
{
float widgetSize = 10;
Vector3 vertScreenPos = Camera.main.WorldToScreenPoint(point.Pos);
float distToMouse = Vector2.SqrMagnitude(vertScreenPos - Input.mousePosition);
vertScreenPos.y = Screen.height - vertScreenPos.y;
vertScreenPos -= new Vector3(1, 1, 0) * widgetSize / 2;
float mouseDistThreshold = selectionMode == 0 ? 1000 : 3000;
if (vertScreenPos.z > 0)
{
if (renderAllPoints ||
point.Selected ||
(distToMouse < mouseDistThreshold && PointIsVisible(point)))
{
GUIStyle guiVertStyle = point.Selected ? guiVertSel : guiVertUnsel;
GUI.Label(new Rect(vertScreenPos.x, vertScreenPos.y, widgetSize, widgetSize), "", guiVertStyle);
if (distToMouse < 64 && Input.GetMouseButtonDown(0) && GUIreadyForClick)
{
GUIreadyForClick = false;
OnPointClicked(point, Input.GetKey(KeyCode.LeftShift));
}
}
}
}
if (!Input.GetMouseButtonDown(0))
{
GUIreadyForClick = true;
}
bool PointIsVisible(ISelectable point)
{
Vector3 camPos = Camera.main.transform.position;
float distanceThreshold = 0.95f;
//RaycastHit hit;
bool didHit = Physics.Raycast(camPos, point.Pos - camPos, out RaycastHit hit);
if (hit.distance / Vector3.Distance(camPos, point.Pos) > distanceThreshold || !didHit)
{
return(true);
}
else
{
return(false);
}
}
}