/// <summary>
/// This function is called to change the type of work gizmo. This is
/// used in the 'Update' function in response to the user pressing the
/// W,E,R,T keys to switch between different gizmo types.
/// </summary>
private void SetWorkGizmoId(GizmoId gizmoId)
{
// If the specified gizmo id is the same as the current id, there is nothing left to do
if (gizmoId == _workGizmoId)
{
return;
}
// Start with a clean slate and disable all gizmos
_objectMoveGizmo.Gizmo.SetEnabled(false);
_objectRotationGizmo.Gizmo.SetEnabled(false);
_objectScaleGizmo.Gizmo.SetEnabled(false);
_objectUniversalGizmo.Gizmo.SetEnabled(false);
// At this point all gizmos are disabled. Now we need to check the gizmo id
// and adjust the '_workGizmo' variable.
_workGizmoId = gizmoId;
if (gizmoId == GizmoId.Move)
{
_workGizmo = _objectMoveGizmo;
}
else if (gizmoId == GizmoId.Rotate)
{
_workGizmo = _objectRotationGizmo;
}
else if (gizmoId == GizmoId.Scale)
{
_workGizmo = _objectScaleGizmo;
}
else if (gizmoId == GizmoId.Universal)
{
_workGizmo = _objectUniversalGizmo;
}
// If we have any selected objects, we need to make sure the work gizmo is enabled
if (_selectedObjects.Count != 0)
{
// Make sure the work gizmo is enabled. There is no need to check if the gizmo is already
// enabled. The 'SetEnabled' call will simply be ignored if that is the case.
_workGizmo.Gizmo.SetEnabled(true);
// The last step we need to perform is to make sure that the work gizmo is positioned
// and rotated correctly. This is because the gizmos (as will become more clear in
// later tutorials) have 2 properties such as transform space and transform pivot and
// when the selected objects change, these 2 properties will dictate how the gizmo should
// be positioned and rotated. In order to ensure that the correct position and rotation
// are used, we need to call 'RefreshPositionAndRotation'.
_workGizmo.RefreshPositionAndRotation();
}
}
/// <summary>
/// Called from the 'Update' function whenever the '_selectedObjects' list
/// changes. It is responsible for updating the gizmos accordingly.
/// </summary>
private void OnSelectionChanged()
{
// If we have any selected objects, we need to make sure the work gizmo is enabled
if (_selectedObjects.Count != 0)
{
// Make sure the work gizmo is enabled. There is no need to check if the gizmo is already
// enabled. The 'SetEnabled' call will simply be ignored if that is the case.
_workGizmo.Gizmo.SetEnabled(true);
// When working with transform spaces, the gizmos need to know about the pivot object. This piece
// of information is necessary when the transform space is set to local because in that case the
// gizmo will have its rotation synchronized with the target objects rotation. But because there
// is more than one target object, we need to tell the gizmo which object to use. This is the role
// if the pivot object in this case.
_workGizmo.SetTargetPivotObject(_selectedObjects[_selectedObjects.Count - 1]);
// The last step we need to perform is to make sure that the work gizmo is positioned
// and rotated correctly. This is because the gizmos (as will become more clear in
// later tutorials) have 2 properties such as transform space and transform pivot and
// when the selected objects change, these 2 properties will dictate how the gizmo should
// be positioned and rotated. In order to ensure that the correct position and rotation
// are used, we need to call 'RefreshPositionAndRotation'.
_workGizmo.RefreshPositionAndRotation();
}
else
{
// The target object is null. In this case, we don't want any gizmos to be visible
// in the scene, so we disable all of them.
_objectMoveGizmo.Gizmo.SetEnabled(false);
_objectRotationGizmo.Gizmo.SetEnabled(false);
_objectScaleGizmo.Gizmo.SetEnabled(false);
_objectUniversalGizmo.Gizmo.SetEnabled(false);
}
}
/// <summary>
/// Called from the 'Update' function whenever the '_selectedObjects' list
/// changes. It is responsible for updating the gizmos.
/// </summary>
private void OnSelectionChanged()
{
// If we have any selected objects, we need to make sure the work gizmo is enabled
if (_selectedObjects.Count != 0)
{
SetHighlights(_selectedObjects);
// Make sure the work gizmo is enabled. There is no need to check if the gizmo is already
// enabled. The 'SetEnabled' call will simply be ignored if that is the case.
_workGizmo.Gizmo.SetEnabled(true);
// Last object that is selected will be used as the pivot object
_workGizmo.SetTargetPivotObject(_selectedObjects[_selectedObjects.Count - 1]);
// In order to ensure that the correct position and rotation
// are used, we need to call 'RefreshPositionAndRotation'.
_workGizmo.RefreshPositionAndRotation();
}
else
{
// The target object is null. In this case, we don't want any gizmos to be visible
// in the scene, so we disable all of them.
_objectMoveGizmo.Gizmo.SetEnabled(false);
_objectRotationGizmo.Gizmo.SetEnabled(false);
_objectScaleGizmo.Gizmo.SetEnabled(false);
_objectUniversalGizmo.Gizmo.SetEnabled(false);
}
}
void SetWorkGizmoId(GizmoId gizmoId)
{
if (gizmoId == _workGizmoId)
{
return;
}
_objectMoveGizmo.Gizmo.SetEnabled(false);
_objectRotateionGizmo.Gizmo.SetEnabled(false);
_objectScaleGizmo.Gizmo.SetEnabled(false);
_objectUniversalGizmo.Gizmo.SetEnabled(false);
_workGizmoId = gizmoId;
if (gizmoId == GizmoId.move)
{
_workGizmo = _objectMoveGizmo;
}
else if (gizmoId == GizmoId.Rotate)
{
_workGizmo = _objectRotateionGizmo;
}
else if (gizmoId == GizmoId.Scale)
{
_workGizmo = _objectScaleGizmo;
}
else if (gizmoId == GizmoId.Universal)
{
_workGizmo = _objectUniversalGizmo;
}
if (_selectObjects.Count != 0)
{
_workGizmo.Gizmo.SetEnabled(true);
_workGizmo.RefreshPositionAndRotation();
}
}
