// ------------------------------------------------------------------------------------------------
/// <summary>
/// Called most of the time the sim is running to highlight whatever is under the mouse currently.
/// If it's part of set, then highlight is updated on selected set. I.e. if we have mouse-dragged
/// to select a bunch of stuff, subsequently doing a mouse-over one of them will highlight all of them
/// </summary>
/// <returns></returns>
public void UpdateHilight(UN_Camera cam)
// ------------------------------------------------------------------------------------------------
{
//SM_ISelectable obj = CheckForObjectUnderMouse(cam);
//if (obj == null)
//{
// UnHilightAll();
//}
//else if (obj.IsHilighted == false) // the object wasn't hilighted before
//{
// UnHilightAll(); // clear out old set
// // if this object is a member of a set, then hilight all of them
// if (obj.IsSelected && _selected.Count > 1)
// {
// foreach (var v in _selected)
// {
// SetHilighted(v);
// }
// }
// else
// {
// SetHilighted(obj);
// }
//}
// otherwise we were already hilighted and have nothing to do.
}
// -----------------------------------------------------------------------------------------
public bool FindTerrainPointUnderMouse(UN_Camera cam, ref Vector3 where)
// -----------------------------------------------------------------------------------------
{
if (Dbg.Assert(cam != null))
{
return(false);
}
Ray ray = cam.ScreenPointToRay(Input.mousePosition);
RaycastHit hitInfo;
if (!Physics.Raycast(ray, out hitInfo, 300, _terrainLayerMask))
{
return(false);
}
where = hitInfo.point;
return(true);
}
// ------------------------------------------------------------------------------------------------
/// <summary>
/// Simply returns the 'best' ISelectable under the mouse
/// </summary>
/// <returns></returns>
protected SM_ISelectable CheckForObjectUnderMouse(UN_Camera cam)
// ------------------------------------------------------------------------------------------------
{
if (Dbg.Assert(cam != null))
{
return(null);
}
Ray ray = cam.ScreenPointToRay(Input.mousePosition);
RaycastHit[] hits = Physics.RaycastAll(ray);
if (hits == null)
{
return(null);
}
int bestNdx = -1;
float bestDst = float.MaxValue;
SM_ISelectable bestSelect = null;
for (int i = 0; i < hits.Length; i++)
{
if (hits[i].distance < bestDst)
{
if (CheckParentsForSelectable(hits[i].transform, ref bestSelect))
{
bestNdx = i;
}
}
}
if (bestNdx < 0)
{
return(null);
}
return(bestSelect);
}
// -----------------------------------------------------------------------------------------
/// <summary>
/// should be called when we're curious if the mouse is selecting something else
/// </summary>
/// <param name="mode"></param>
public bool SelectSingleUnderMouse(UN_Camera camera)
// -----------------------------------------------------------------------------------------
{
return(SetSelected(CheckForObjectUnderMouse(camera)));
}