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KX_SCA_AddObjectActuator.cpp

//
// Add an object when this actuator is triggered
//
// $Id: KX_SCA_AddObjectActuator.cpp,v 1.9 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 *****
// Previously existed as:

// \source\gameengine\GameLogic\SCA_AddObjectActuator.cpp

// Please look here for revision history.


#include "KX_SCA_AddObjectActuator.h"
#include "SCA_IScene.h"
#include "KX_GameObject.h"
#include "KX_IPhysicsController.h"

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

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

KX_SCA_AddObjectActuator::KX_SCA_AddObjectActuator(SCA_IObject *gameobj,
                                                                           CValue* original,
                                                                           int time,
                                                                           SCA_IScene* scene,
                                                                           const MT_Vector3& linvel,
                                                                           bool local,
                                                                           PyTypeObject* T)
      : 
      SCA_IActuator(gameobj, T),
      m_OriginalObject(original),
      m_scene(scene),
      m_linear_velocity(linvel),
      m_localFlag(local)
{
      m_lastCreatedObject = NULL;
      m_timeProp = time;
} 



KX_SCA_AddObjectActuator::~KX_SCA_AddObjectActuator()
{ 
      if (m_lastCreatedObject)
            m_lastCreatedObject->Release();
} 



bool KX_SCA_AddObjectActuator::Update()
{
      bool result = false;    
      bool bNegativeEvent = IsNegativeEvent();
      RemoveAllEvents();
      
      if (bNegativeEvent) return false; // do nothing on negative events
      if (m_OriginalObject)
      {
            // Add an identical object, with properties inherited from the original object      
            // Now it needs to be added to the current scene.
            SCA_IObject* replica = m_scene->AddReplicaObject(m_OriginalObject,GetParent(),m_timeProp );
            KX_GameObject * game_obj = static_cast<KX_GameObject *>(replica);
            game_obj->setLinearVelocity(m_linear_velocity,m_localFlag);
            game_obj->ResolveCombinedVelocities(m_linear_velocity, MT_Vector3(0., 0., 0.), m_localFlag, false);

            // keep a copy of the last object, to allow python scripters to change it
            if (m_lastCreatedObject)
                  m_lastCreatedObject->Release();
            
            m_lastCreatedObject = replica;
            m_lastCreatedObject->AddRef();
      }

      return false;
}



SCA_IObject* KX_SCA_AddObjectActuator::GetLastCreatedObject() const 
{
      return m_lastCreatedObject;
}



CValue* KX_SCA_AddObjectActuator::GetReplica() 
{
      KX_SCA_AddObjectActuator* replica = new KX_SCA_AddObjectActuator(*this);

      if (replica == NULL)
            return NULL;

      // this will copy properties and so on...
      replica->ProcessReplica();
      replica->m_lastCreatedObject=NULL;
      CValue::AddDataToReplica(replica);

      return replica;
}



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

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

PyParentObject KX_SCA_AddObjectActuator::Parents[] = {
      &SCA_IActuator::Type,
      &SCA_ILogicBrick::Type,
      &CValue::Type,
      NULL
};
PyMethodDef KX_SCA_AddObjectActuator::Methods[] = {
  {"setObject", (PyCFunction) KX_SCA_AddObjectActuator::sPySetObject, METH_VARARGS, SetObject_doc},
  {"setTime", (PyCFunction) KX_SCA_AddObjectActuator::sPySetTime, METH_VARARGS, SetTime_doc},
  {"getObject", (PyCFunction) KX_SCA_AddObjectActuator::sPyGetObject, METH_VARARGS, GetObject_doc},
  {"getTime", (PyCFunction) KX_SCA_AddObjectActuator::sPyGetTime, METH_VARARGS, GetTime_doc},
  {"getLinearVelocity", (PyCFunction) KX_SCA_AddObjectActuator::sPyGetLinearVelocity, METH_VARARGS, GetLinearVelocity_doc},
  {"setLinearVelocity", (PyCFunction) KX_SCA_AddObjectActuator::sPySetLinearVelocity, METH_VARARGS, SetLinearVelocity_doc},
  {"getLastCreatedObject", (PyCFunction) KX_SCA_AddObjectActuator::sPyGetLastCreatedObject, METH_VARARGS,"getLastCreatedObject() : get the object handle to the last created object\n"},
  {NULL,NULL} //Sentinel
};


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

/* 1. setObject */
char KX_SCA_AddObjectActuator::SetObject_doc[] = 
"setObject(name)\n"
"\t- name: string\n"
"\tSets the object that will be added. There has to be an object\n"
"\tof this name. If not, this function does nothing.\n";



PyObject* KX_SCA_AddObjectActuator::PySetObject(PyObject* self,
                                                                        PyObject* args,
                                                                        PyObject* kwds)
{    
      PyObject* gameobj;
      if (PyArg_ParseTuple(args, "O!", &KX_GameObject::Type, &gameobj))
      {
            m_OriginalObject = (CValue*)gameobj;
            Py_Return;
      }
      PyErr_Clear();
      
      char* objectname;
      if (PyArg_ParseTuple(args, "s", &objectname))
      {
            m_OriginalObject= (CValue*)SCA_ILogicBrick::m_sCurrentLogicManager->GetGameObjectByName(STR_String(objectname));;
            
            Py_Return;
      }
      
      return NULL;
}



/* 2. setTime */
char KX_SCA_AddObjectActuator::SetTime_doc[] = 
"setTime(duration)\n"
"\t- duration: integer\n"
"\tSets the lifetime of the object that will be added, in frames. \n"
"\tIf the duration is negative, it is set to 0.\n";


PyObject* KX_SCA_AddObjectActuator::PySetTime(PyObject* self,
                                                                    PyObject* args,
                                                                    PyObject* kwds)
{
      int deltatime;
      
      if (!PyArg_ParseTuple(args, "i", &deltatime))
            return NULL;
      
      m_timeProp = deltatime;
      if (m_timeProp < 0) m_timeProp = 0;
      
      Py_Return;
}



/* 3. getTime */
char KX_SCA_AddObjectActuator::GetTime_doc[] = 
"GetTime()\n"
"\tReturns the lifetime of the object that will be added.\n";


PyObject* KX_SCA_AddObjectActuator::PyGetTime(PyObject* self,
                                                                    PyObject* args,
                                                                    PyObject* kwds)
{
      return PyInt_FromLong(m_timeProp);
}


/* 4. getObject */
char KX_SCA_AddObjectActuator::GetObject_doc[] = 
"getObject()\n"
"\tReturns the name of the object that will be added.\n";


      
PyObject* KX_SCA_AddObjectActuator::PyGetObject(PyObject* self,
                                                                        PyObject* args,
                                                                        PyObject* kwds)
{
      if (!m_OriginalObject)
            Py_Return;

      return PyString_FromString(m_OriginalObject->GetName());
}



/* 5. getLinearVelocity */
char KX_SCA_AddObjectActuator::GetLinearVelocity_doc[] = 
"GetLinearVelocity()\n"
"\tReturns the linear velocity that will be assigned to \n"
"\tthe created object.\n";



PyObject* KX_SCA_AddObjectActuator::PyGetLinearVelocity(PyObject* self,
                                                                                    PyObject* args,
                                                                                    PyObject* kwds)
{
      PyObject *retVal = PyList_New(3);

      PyList_SetItem(retVal, 0, PyFloat_FromDouble(m_linear_velocity[0]));
      PyList_SetItem(retVal, 1, PyFloat_FromDouble(m_linear_velocity[1]));
      PyList_SetItem(retVal, 2, PyFloat_FromDouble(m_linear_velocity[2]));
      
      return retVal;
}



/* 6. setLinearVelocity                                                 */
char KX_SCA_AddObjectActuator::SetLinearVelocity_doc[] = 
"setLinearVelocity(vx, vy, vz)\n"
"\t- vx: float\n"
"\t- vy: float\n"
"\t- vz: float\n"
"\tAssign this velocity to the created object. \n";


PyObject* KX_SCA_AddObjectActuator::PySetLinearVelocity(PyObject* self,
                                                                                    PyObject* args,
                                                                                    PyObject* kwds)
{
      
      float vecArg[3];
      if (!PyArg_ParseTuple(args, "fff", &vecArg[0], &vecArg[1], &vecArg[2]))
            return NULL;

      m_linear_velocity.setValue(vecArg);
      Py_Return;
}



/* 7. GetLastCreatedObject                                                */
char KX_SCA_AddObjectActuator::GetLastCreatedObject_doc[] = 
"getLastCreatedObject()\n"
"\tReturn the last created object. \n";


PyObject* KX_SCA_AddObjectActuator::PyGetLastCreatedObject(PyObject* self,
                                                                                       PyObject* args,
                                                                                       PyObject* kwds)
{
      SCA_IObject* result = this->GetLastCreatedObject();
      if (result)
      {
            result->AddRef();
            return result;
      }
      // don't return NULL to python anymore, it gives trouble in the scripts
      Py_Return;
}

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