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KX_SceneActuator.cpp

/**
* Set scene/camera stuff
*
* $Id: KX_SceneActuator.cpp,v 1.10 2004/10/16 11:41:48 kester Exp $
*
 * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version. The Blender
 * Foundation also sells licenses for use in proprietary software under
 * the Blender License.  See http://www.blender.org/BL/ for information
 * about this.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL/BL DUAL LICENSE BLOCK *****
*/

#include "SCA_IActuator.h"
#include "KX_SceneActuator.h"
#include <iostream>
#include "KX_Scene.h"
#include "KX_Camera.h"
#include "KX_KetsjiEngine.h"

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

/* ------------------------------------------------------------------------- */
/* Native functions                                                          */
/* ------------------------------------------------------------------------- */

KX_SceneActuator::KX_SceneActuator(SCA_IObject *gameobj, 
                                                   int mode,
                                                   KX_Scene *scene,
                                                   KX_KetsjiEngine* ketsjiEngine,
                                                   const STR_String& nextSceneName,
                                                   KX_Camera* camera,
                                                   PyTypeObject* T)
                                                   : SCA_IActuator(gameobj, T)
{
      m_mode = mode;
      m_scene  = scene;
      m_KetsjiEngine=ketsjiEngine;
      m_camera = camera;
      m_nextSceneName = nextSceneName;
} /* End of constructor */



KX_SceneActuator::~KX_SceneActuator()
{ 
      // there's nothing to be done here, really....
} /* end of destructor */



CValue* KX_SceneActuator::GetReplica()
{
      KX_SceneActuator* replica = new KX_SceneActuator(*this);
      replica->ProcessReplica();
      // this will copy properties and so on...
      CValue::AddDataToReplica(replica);
      
      return replica;
}



bool KX_SceneActuator::Update()
{
      bool result = false;    
      bool bNegativeEvent = IsNegativeEvent();
      RemoveAllEvents();

      if (bNegativeEvent)
            return false; // do nothing on negative events

      switch (m_mode)
      {
      case KX_SCENE_RESTART:
            {
                  m_KetsjiEngine->ReplaceScene(m_scene->GetName(),m_scene->GetName());
                  break;
            }
      case KX_SCENE_SET_CAMERA:
            if (m_camera)
            {
                  m_scene->SetActiveCamera(m_camera);
            }
            break;
      default:
            break;
      }
      
      if (!m_nextSceneName.Length())
            return false;
      
      switch (m_mode)
      {
      case KX_SCENE_SET_SCENE:
            {
                  m_KetsjiEngine->ReplaceScene(m_scene->GetName(),m_nextSceneName);
                  break;
            }
      case KX_SCENE_ADD_FRONT_SCENE:
            {
                  bool overlay=true;
                  m_KetsjiEngine->ConvertAndAddScene(m_nextSceneName,overlay);
                  break;
            }
      case KX_SCENE_ADD_BACK_SCENE:
            {
                  bool overlay=false;
                  m_KetsjiEngine->ConvertAndAddScene(m_nextSceneName,overlay);
                  break;
            }
      case KX_SCENE_REMOVE_SCENE:
            {
                  m_KetsjiEngine->RemoveScene(m_nextSceneName);
                  break;
            }
      case KX_SCENE_SUSPEND:
            {
                  m_KetsjiEngine->SuspendScene(m_nextSceneName);
                  break;
            }
      case KX_SCENE_RESUME:
            {
                  m_KetsjiEngine->ResumeScene(m_nextSceneName);
                  break;
            }
      default:
            ; /* do nothing? this is an internal error !!! */
      }
      
      return false;
}



/*  returns a camera if the name is valid */
KX_Camera* KX_SceneActuator::FindCamera(char *camName)
{
      KX_SceneList* sl = m_KetsjiEngine->CurrentScenes();
      STR_String name = STR_String(camName);
      KX_SceneList::iterator it = sl->begin();
      KX_Camera* cam = NULL;

      while ((it != sl->end()) && (!cam))
      {
            cam = (*it)->FindCamera(name);
            it++;
      }

      return cam;
}



KX_Scene* KX_SceneActuator::FindScene(char * sceneName)
{
      return m_KetsjiEngine->FindScene(sceneName);
}




/* ------------------------------------------------------------------------- */
/* Python functions                                                          */
/* ------------------------------------------------------------------------- */

/* Integration hooks ------------------------------------------------------- */
PyTypeObject KX_SceneActuator::Type = {
      PyObject_HEAD_INIT(&PyType_Type)
            0,
            "KX_SceneActuator",
            sizeof(KX_SceneActuator),
            0,
            PyDestructor,
            0,
            __getattr,
            __setattr,
            0, //&MyPyCompare,
            __repr,
            0, //&cvalue_as_number,
            0,
            0,
            0,
            0
};



PyParentObject KX_SceneActuator::Parents[] =
{
      &KX_SceneActuator::Type,
            &SCA_IActuator::Type,
            &SCA_ILogicBrick::Type,
            &CValue::Type,
            NULL
};



PyMethodDef KX_SceneActuator::Methods[] =
{
      {"setUseRestart", (PyCFunction) KX_SceneActuator::sPySetUseRestart, METH_VARARGS, SetUseRestart_doc},
      {"setScene",      (PyCFunction) KX_SceneActuator::sPySetScene, METH_VARARGS, SetScene_doc},
      {"setCamera",     (PyCFunction) KX_SceneActuator::sPySetCamera, METH_VARARGS, SetCamera_doc},
      {"getUseRestart", (PyCFunction) KX_SceneActuator::sPyGetUseRestart, METH_VARARGS, GetUseRestart_doc},
      {"getScene",      (PyCFunction) KX_SceneActuator::sPyGetScene, METH_VARARGS, GetScene_doc},
      {"getCamera",     (PyCFunction) KX_SceneActuator::sPyGetCamera, METH_VARARGS, GetCamera_doc},
      {NULL,NULL} //Sentinel
};



PyObject* KX_SceneActuator::_getattr(const STR_String& attr)
{
      _getattr_up(SCA_IActuator);
}



/* 2. setUseRestart--------------------------------------------------------- */
char KX_SceneActuator::SetUseRestart_doc[] = 
"setUseRestart(flag)\n"
"\t- flag: 0 or 1.\n"
"\tSet flag to 1 to restart the scene.\n" ;
PyObject* KX_SceneActuator::PySetUseRestart(PyObject* self, 
                                                                  PyObject* args, 
                                                                  PyObject* kwds)
{
      int boolArg;
      
      if (!PyArg_ParseTuple(args, "i", &boolArg))
      {
            return NULL;
      }
      
      m_restart = boolArg != 0;
      
      Py_Return;
}



/* 3. getUseRestart:                                                         */
char KX_SceneActuator::GetUseRestart_doc[] = 
"getUseRestart()\n"
"\tReturn whether the scene will be restarted.\n" ;
PyObject* KX_SceneActuator::PyGetUseRestart(PyObject* self, 
                                                                  PyObject* args, 
                                                                  PyObject* kwds)
{
      return PyInt_FromLong(!(m_restart == 0));
}



/* 4. set scene------------------------------------------------------------- */
char KX_SceneActuator::SetScene_doc[] = 
"setScene(scene)\n"
"\t- scene: string\n"
"\tSet the name of scene the actuator will switch to.\n" ;
PyObject* KX_SceneActuator::PySetScene(PyObject* self, 
                                                         PyObject* args, 
                                                         PyObject* kwds)
{
      /* one argument: a scene, ignore the rest */
      char *scene_name;

      if(!PyArg_ParseTuple(args, "s", &scene_name))
      {
            return NULL;
      }

      /* Scene switch is done by name. */
      m_nextSceneName = scene_name;

      Py_Return;
}



/* 5. getScene:                                                              */
char KX_SceneActuator::GetScene_doc[] = 
"getScene()\n"
"\tReturn the name of the scene the actuator wants to switch to.\n" ;
PyObject* KX_SceneActuator::PyGetScene(PyObject* self, 
                                                         PyObject* args, 
                                                         PyObject* kwds)
{
      return PyString_FromString(m_nextSceneName);
}



/* 6. set camera------------------------------------------------------------ */
char KX_SceneActuator::SetCamera_doc[] = 
"setCamera(camera)\n"
"\t- camera: string\n"
"\tSet the camera to switch to.\n" ;
PyObject* KX_SceneActuator::PySetCamera(PyObject* self, 
                                                            PyObject* args, 
                                                            PyObject* kwds)
{
      PyObject *cam;
      if (PyArg_ParseTuple(args, "O!", &KX_Camera::Type, &cam))
      {
            m_camera = (KX_Camera*) cam;
            Py_Return;
      }
      PyErr_Clear();

      /* one argument: a scene, ignore the rest */
      char *camName;
      if(!PyArg_ParseTuple(args, "s", &camName))
      {
            return NULL;
      }

      KX_Camera *camOb = FindCamera(camName);
      if (camOb) m_camera = camOb;

      Py_Return;
}



/* 7. getCamera:                                                             */
char KX_SceneActuator::GetCamera_doc[] = 
"getCamera()\n"
"\tReturn the name of the camera to switch to.\n" ;
PyObject* KX_SceneActuator::PyGetCamera(PyObject* self, 
                                                            PyObject* args, 
                                                            PyObject* kwds)
{
      return PyString_FromString(m_camera->GetName());
}
/* eof */

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