private static void _EditRoad_Create_DrawNextPathPreview(RoadRoot root, Event e, int controlID)
{
RoadCreateOperation op = root.currentOperation as RoadCreateOperation;
if (op == null)
{
return;
}
Ray r = HandleUtility.GUIPointToWorldRay(e.mousePosition);
RaycastHit hit;
if (Physics.Raycast(r, out hit))
{
Waypoint from = op.lastWaypoint;
Vector3 curPos = hit.point;
Vector3 tangent = Vector3.Lerp(from.transform.position, curPos, 0.5f);
Handles.DrawBezier(from.transform.position, // start pos
curPos, // end pos
tangent, // start tangent
tangent, // end tangent
Color.magenta, // color
null, // Texture
3.0f); // width
}
}
public Operation BeginCreateRoadOperation(Vector3 position)
{
RoadCreateOperation r = new RoadCreateOperation(this);
r.Begin(position);
currentOperation = r;
return(r);
}
/// <summary>
/// HACK: force invoke Repaint Event in SceneView.
/// OnSceneGUI() will not be redrawn unless Repaint Event is kicked,
/// so moving last waypoint by zero to force make repaint happen.
/// </summary>
private static void _EditRoad_Create_ForceInvokeRepaint(RoadRoot root)
{
RoadCreateOperation op = root.currentOperation as RoadCreateOperation;
if (op != null)
{
op.lastWaypoint.transform.Translate(new Vector3(0, 0, 0));
}
}
private static void _EditRoad_Create(RoadRoot root, Event e, int controlID)
{
switch (e.GetTypeForControl(controlID))
{
case EventType.mouseMove:
// to draw preview line in scene, invoke repaint event when mouse is moved.
_EditRoad_Create_ForceInvokeRepaint(root);
break;
case EventType.Repaint:
_EditRoad_Create_DrawNextPathPreview(root, e, controlID);
break;
case EventType.MouseDown:
GUIUtility.hotControl = controlID;
if (e.clickCount == 2)
{
RoadCreateOperation op = root.currentOperation as RoadCreateOperation;
if (op != null)
{
Selection.activeGameObject = op.End();
}
}
Event.current.Use();
break;
case EventType.MouseUp:
GUIUtility.hotControl = 0;
Ray ray = HandleUtility.GUIPointToWorldRay(e.mousePosition);
RaycastHit hit;
if (Physics.Raycast(ray, out hit))
{
RoadCreateOperation op = root.currentOperation as RoadCreateOperation;
if (op == null)
{
root.BeginCreateRoadOperation(hit.point);
}
else
{
op.Continue(hit.point);
}
}
Event.current.Use();
break;
}
}