/// <summary>
/// On DrawGizmos, we draw lines to show the path the object will follow
/// </summary>
protected virtual void OnDrawGizmos()
{
#if UNITY_EDITOR
if (PathElements == null)
{
return;
}
if (PathElements.Count == 0)
{
return;
}
// if we haven't stored the object's original position yet, we do it
if (_originalTransformPositionStatus == false)
{
_originalTransformPosition = transform.position;
_originalTransformPositionStatus = true;
}
// if we're not in runtime mode and the transform has changed, we update our position
if (transform.hasChanged && _active == false)
{
_originalTransformPosition = transform.position;
}
// for each point in the path
for (int i = 0; i < PathElements.Count; i++)
{
// we draw a green point
MMDebug.DrawGizmoPoint(_originalTransformPosition + PathElements[i].PathElementPosition, 0.2f, Color.green);
// we draw a line towards the next point in the path
if ((i + 1) < PathElements.Count)
{
Gizmos.color = Color.white;
Gizmos.DrawLine(_originalTransformPosition + PathElements[i].PathElementPosition, _originalTransformPosition + PathElements[i + 1].PathElementPosition);
}
// we draw a line from the first to the last point if we're looping
if ((i == PathElements.Count - 1) && (CycleOption == CycleOptions.Loop))
{
Gizmos.color = Color.white;
Gizmos.DrawLine(_originalTransformPosition + PathElements[0].PathElementPosition, _originalTransformPosition + PathElements[i].PathElementPosition);
}
}
// if the game is playing, we add a blue point to the destination, and a red point to the last visited point
if (Application.isPlaying)
{
if (_currentPoint != null)
{
MMDebug.DrawGizmoPoint(_originalTransformPosition + _currentPoint.Current, 0.2f, Color.blue);
MMDebug.DrawGizmoPoint(_originalTransformPosition + _previousPoint, 0.2f, Color.red);
}
}
#endif
}
/// <summary>
/// On DrawGizmosSelected, we draw a yellow point at the position of our center of mass
/// </summary>
protected virtual void OnDrawGizmosSelected()
{
_gizmoCenter = this.transform.TransformPoint(CenterOfMassOffset);
MMDebug.DrawGizmoPoint(_gizmoCenter, GizmoPointSize, Color.yellow);
}
/// <summary>
/// Draws a position gizmo
/// </summary>
/// <param name="mmGizmo"></param>
private static void DrawPositionGizmo(MMGizmo mmGizmo)
{
switch (mmGizmo.PositionMode)
{
case MMGizmo.PositionModes.Point:
MMDebug.DrawGizmoPoint(ComputeGizmoPosition(mmGizmo, mmGizmo._vector3Zero), mmGizmo.GizmoColor, mmGizmo.PositionSize);
break;
case MMGizmo.PositionModes.Cube:
Gizmos.DrawCube(ComputeGizmoPosition(mmGizmo, mmGizmo._vector3Zero), Vector3.one * mmGizmo.PositionSize);
break;
case MMGizmo.PositionModes.Sphere:
Gizmos.DrawSphere(ComputeGizmoPosition(mmGizmo, mmGizmo._vector3Zero), mmGizmo.PositionSize);
break;
case MMGizmo.PositionModes.WireCube:
Gizmos.DrawWireCube(ComputeGizmoPosition(mmGizmo, mmGizmo._vector3Zero), Vector3.one * mmGizmo.PositionSize);
break;
case MMGizmo.PositionModes.WireSphere:
Gizmos.DrawWireSphere(ComputeGizmoPosition(mmGizmo, mmGizmo._vector3Zero), mmGizmo.PositionSize);
break;
case MMGizmo.PositionModes.Texture:
if (mmGizmo._positionTextureNotNull)
{
Handles.BeginGUI();
mmGizmo._worldToGUIPosition = HandleUtility.WorldToGUIPoint(ComputeGizmoPosition(mmGizmo, mmGizmo.transform.position, false));
mmGizmo._textureRect = new Rect(mmGizmo._worldToGUIPosition.x - mmGizmo.TextureSize.x / 2f, mmGizmo._worldToGUIPosition.y - mmGizmo.TextureSize.y / 2f, mmGizmo.TextureSize.x, mmGizmo.TextureSize.y);
GUI.Label(mmGizmo._textureRect, mmGizmo.PositionTexture);
Handles.EndGUI();
}
break;
case MMGizmo.PositionModes.Arrows:
Handles.color = Handles.xAxisColor;
Handles.ArrowHandleCap(0, ComputeGizmoPosition(mmGizmo, mmGizmo.transform.position, false),
Quaternion.LookRotation(mmGizmo.transform.right, mmGizmo.transform.up), mmGizmo.PositionSize, EventType.Repaint);
Handles.color = Handles.yAxisColor;
Handles.ArrowHandleCap(0, ComputeGizmoPosition(mmGizmo, mmGizmo.transform.position, false),
Quaternion.LookRotation(mmGizmo.transform.up, mmGizmo.transform.up), mmGizmo.PositionSize, EventType.Repaint);
Handles.color = Handles.zAxisColor;
Handles.ArrowHandleCap(0, ComputeGizmoPosition(mmGizmo, mmGizmo.transform.position, false),
Quaternion.LookRotation(mmGizmo.transform.forward, mmGizmo.transform.up), mmGizmo.PositionSize, EventType.Repaint);
break;
case MMGizmo.PositionModes.RightArrow:
Handles.color = mmGizmo.GizmoColor;
Handles.ArrowHandleCap(0, ComputeGizmoPosition(mmGizmo, mmGizmo.transform.position, false),
Quaternion.LookRotation(mmGizmo.transform.right, mmGizmo.transform.up), mmGizmo.PositionSize, EventType.Repaint);
break;
case MMGizmo.PositionModes.UpArrow:
Handles.color = mmGizmo.GizmoColor;
Handles.ArrowHandleCap(0, ComputeGizmoPosition(mmGizmo, mmGizmo.transform.position, false),
Quaternion.LookRotation(mmGizmo.transform.up, mmGizmo.transform.up), mmGizmo.PositionSize, EventType.Repaint);
break;
case MMGizmo.PositionModes.ForwardArrow:
Handles.color = mmGizmo.GizmoColor;
Handles.ArrowHandleCap(0, ComputeGizmoPosition(mmGizmo, mmGizmo.transform.position, false),
Quaternion.LookRotation(mmGizmo.transform.forward, mmGizmo.transform.up), mmGizmo.PositionSize, EventType.Repaint);
break;
}
}
