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BL_KetsjiEmbedStart.cpp

/**
 * $Id: BL_KetsjiEmbedStart.cpp,v 1.6 2004/10/16 11:41:47 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 *****
 * Blender's Ketsji startpoint
 */

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

#include <signal.h>

#ifdef WIN32
// don't show stl-warnings
#pragma warning (disable:4786)
#endif

#include "KX_BlenderGL.h"
#include "KX_BlenderCanvas.h"
#include "KX_BlenderKeyboardDevice.h"
#include "KX_BlenderMouseDevice.h"
#include "KX_BlenderRenderTools.h"
#include "KX_BlenderSystem.h"

#include "KX_KetsjiEngine.h"
#include "KX_BlenderSceneConverter.h"
#include "KX_PythonInit.h"
#include "KX_PyConstraintBinding.h"

#include "RAS_OpenGLRasterizer.h"
#include "RAS_VAOpenGLRasterizer.h"
#include "RAS_GLExtensionManager.h"

#include "NG_LoopBackNetworkDeviceInterface.h"
#include "SND_DeviceManager.h"

#include "SYS_System.h"

      /***/

#include "DNA_view3d_types.h"
#include "DNA_screen_types.h"
#include "BKE_global.h"
#include "BIF_screen.h"
#include "BIF_scrarea.h"

#include "BKE_main.h"   
#include "BLI_blenlib.h"
#include "BLO_readfile.h"
#include "DNA_scene_types.h"
      /***/

static BlendFileData *load_game_data(char *filename) {
      BlendReadError error;
      BlendFileData *bfd= BLO_read_from_file(filename, &error);
      
      if (!bfd) {
            printf("Loading %s failed: %s\n", filename, BLO_bre_as_string(error));
      }
      
      return bfd;
}

extern "C" void StartKetsjiShell(struct ScrArea *area,
                                                 char* scenename,
                                                 struct Main* maggie,
                                                 int always_use_expand_framing)
{
      int exitrequested = KX_EXIT_REQUEST_NO_REQUEST;
      Main* blenderdata = maggie;
      char* startscenename = scenename;
      char pathname[160];
      strcpy (pathname, maggie->name);
      STR_String exitstring = "";
      BlendFileData *bfd= NULL;
      
      bgl::InitExtensions(1);
      
      do
      {
            View3D *v3d= (View3D*) area->spacedata.first;
            
            // get some preferences
            SYS_SystemHandle syshandle = SYS_GetSystem();
            bool properties   = (SYS_GetCommandLineInt(syshandle, "show_properties", 0) != 0);
            bool usefixed = (SYS_GetCommandLineInt(syshandle, "fixedtime", 0) != 0);
            bool profile = (SYS_GetCommandLineInt(syshandle, "show_profile", 0) != 0);
            bool frameRate = (SYS_GetCommandLineInt(syshandle, "show_framerate", 0) != 0);
            
            // create the canvas, rasterizer and rendertools
            RAS_ICanvas* canvas = new KX_BlenderCanvas(area);
            canvas->SetMouseState(RAS_ICanvas::MOUSE_INVISIBLE);
            RAS_IRenderTools* rendertools = new KX_BlenderRenderTools();
            RAS_IRasterizer* rasterizer = NULL;
            
            // let's see if we want to use vertexarrays or not
            int usevta = SYS_GetCommandLineInt(syshandle,"vertexarrays",1);
            bool useVertexArrays = (usevta > 0);
            
            if (useVertexArrays && bgl::QueryVersion(1, 1))
                  rasterizer = new RAS_VAOpenGLRasterizer(canvas);
            else
                  rasterizer = new RAS_OpenGLRasterizer(canvas);
            
            // create the inputdevices
            KX_BlenderKeyboardDevice* keyboarddevice = new KX_BlenderKeyboardDevice();
            KX_BlenderMouseDevice* mousedevice = new KX_BlenderMouseDevice();
            
            // create a networkdevice
            NG_NetworkDeviceInterface* networkdevice = new
                  NG_LoopBackNetworkDeviceInterface();
            
            // get an audiodevice
            SND_DeviceManager::Subscribe();
            SND_IAudioDevice* audiodevice = SND_DeviceManager::Instance();
            audiodevice->UseCD();
            
            // create a ketsji/blendersystem (only needed for timing and stuff)
            KX_BlenderSystem* kxsystem = new KX_BlenderSystem();
            
            // create the ketsjiengine
            KX_KetsjiEngine* ketsjiengine = new KX_KetsjiEngine(kxsystem);
            
            // set the devices
            ketsjiengine->SetKeyboardDevice(keyboarddevice);
            ketsjiengine->SetMouseDevice(mousedevice);
            ketsjiengine->SetNetworkDevice(networkdevice);
            ketsjiengine->SetCanvas(canvas);
            ketsjiengine->SetRenderTools(rendertools);
            ketsjiengine->SetRasterizer(rasterizer);
            ketsjiengine->SetNetworkDevice(networkdevice);
            ketsjiengine->SetAudioDevice(audiodevice);
            ketsjiengine->SetUseFixedTime(usefixed);
            ketsjiengine->SetTimingDisplay(frameRate, profile, properties);
            
            // some blender stuff
            MT_CmMatrix4x4 projmat;
            MT_CmMatrix4x4 viewmat;
            int i;
            
            for (i = 0; i < 16; i++)
            {
                  float *viewmat_linear= (float*) v3d->viewmat;
                  viewmat.setElem(i, viewmat_linear[i]);
            }
            for (i = 0; i < 16; i++)
            {
                  float *projmat_linear = (float*) area->winmat;
                  projmat.setElem(i, projmat_linear[i]);
            }
            
            float camzoom = (1.41421 + (v3d->camzoom / 50.0));
            camzoom *= camzoom;
            camzoom = 4.0 / camzoom;
            
            ketsjiengine->SetDrawType(v3d->drawtype);
            ketsjiengine->SetCameraZoom(camzoom);
            
            // if we got an exitcode 3 (KX_EXIT_REQUEST_START_OTHER_GAME) load a different file
            if (exitrequested == KX_EXIT_REQUEST_START_OTHER_GAME || exitrequested == KX_EXIT_REQUEST_RESTART_GAME)
            {
                  exitrequested = KX_EXIT_REQUEST_NO_REQUEST;
                  if (bfd) BLO_blendfiledata_free(bfd);
                  
                  char basedpath[160];
                  // base the actuator filename with respect
                  // to the original file working directory
                  if (exitstring != "")
                        strcpy(basedpath, exitstring.Ptr());

                  BLI_convertstringcode(basedpath, pathname, 0);
                  bfd = load_game_data(basedpath);
                  
                  // if it wasn't loaded, try it forced relative
                  if (!bfd)
                  {
                        // just add "//" in front of it
                        char temppath[162];
                        strcpy(temppath, "//");
                        strcat(temppath, basedpath);
                        
                        BLI_convertstringcode(temppath, pathname, 0);
                        bfd = load_game_data(temppath);
                  }
                  
                  // if we got a loaded blendfile, proceed
                  if (bfd)
                  {
                        blenderdata = bfd->main;
                        startscenename = bfd->curscene->id.name + 2;
                  }
                  // else forget it, we can't find it
                  else
                  {
                        exitrequested = KX_EXIT_REQUEST_QUIT_GAME;
                  }
            }
            
            Scene *blscene = NULL;
            if (!bfd)
            {
                  blscene = (Scene*) maggie->scene.first;
                  for (Scene *sce= (Scene*) maggie->scene.first; sce; sce= (Scene*) sce->id.next)
                  {
                        if (startscenename == (sce->id.name+2))
                        {
                              blscene = sce;
                              break;
                        }
                  }
            } else {
                  blscene = bfd->curscene;
            }

            // Quad buffered needs a special window.
            if (blscene->r.stereomode != RAS_IRasterizer::RAS_STEREO_QUADBUFFERED)
                  rasterizer->SetStereoMode((RAS_IRasterizer::StereoMode) blscene->r.stereomode);
            
            if (exitrequested != KX_EXIT_REQUEST_QUIT_GAME)
            {
                  if (v3d->persp != 2)
                  {
                        ketsjiengine->EnableCameraOverride(startscenename);
                        ketsjiengine->SetCameraOverrideUseOrtho((v3d->persp == 0));
                        ketsjiengine->SetCameraOverrideProjectionMatrix(projmat);
                        ketsjiengine->SetCameraOverrideViewMatrix(viewmat);
                  }
                  
                  // create a scene converter, create and convert the startingscene
                  KX_ISceneConverter* sceneconverter = new KX_BlenderSceneConverter(blenderdata, ketsjiengine);
                  ketsjiengine->SetSceneConverter(sceneconverter);
                  
                  if (always_use_expand_framing)
                        sceneconverter->SetAlwaysUseExpandFraming(true);
                  
                  
                  KX_Scene* startscene = new KX_Scene(keyboarddevice,
                        mousedevice,
                        networkdevice,
                        audiodevice,
                        startscenename);
                  
                  // some python things
                  PyObject* dictionaryobject = initGamePythonScripting("Ketsji", psl_Lowest);
                  ketsjiengine->SetPythonDictionary(dictionaryobject);
                  initRasterizer(rasterizer, canvas);
                  initGameLogic(startscene);
                  initGameKeys();
                  initPythonConstraintBinding();

                  
                  if (sceneconverter)
                  {
                        // convert and add scene
                        sceneconverter->ConvertScene(
                              startscenename,
                              startscene,
                              dictionaryobject,
                              keyboarddevice,
                              rendertools,
                              canvas);
                        ketsjiengine->AddScene(startscene);
                        
                        // init the rasterizer
                        rasterizer->Init();
                        
                        // start the engine
                        ketsjiengine->StartEngine();
                        
                        // the mainloop
                        while (!exitrequested)
                        {
                              // first check if we want to exit
                              exitrequested = ketsjiengine->GetExitCode();
                              
                              // kick the engine
                              ketsjiengine->NextFrame();
                              
                              // render the frame
                              ketsjiengine->Render();
                              
                              // test for the ESC key
                              while (qtest())
                              {
                                    short val; 
                                    unsigned short event = extern_qread(&val);
                                    
                                    if (keyboarddevice->ConvertBlenderEvent(event,val))
                                          exitrequested = KX_EXIT_REQUEST_BLENDER_ESC;
                                    
                                          /* Coordinate conversion... where
                                          * should this really be?
                                    */
                                    if (event==MOUSEX) {
                                          val = val - scrarea_get_win_x(area);
                                    } else if (event==MOUSEY) {
                                          val = scrarea_get_win_height(area) - (val - scrarea_get_win_y(area)) - 1;
                                    }
                                    
                                    mousedevice->ConvertBlenderEvent(event,val);
                              }
                        }
                        exitstring = ketsjiengine->GetExitString();
                        
                        // when exiting the mainloop
                        exitGamePythonScripting();
                        ketsjiengine->StopEngine();
                        networkdevice->Disconnect();
                  }

                  if (sceneconverter)
                  {
                        delete sceneconverter;
                        sceneconverter = NULL;
                  }
            }
            // set the cursor back to normal
            canvas->SetMouseState(RAS_ICanvas::MOUSE_NORMAL);
            
            // clean up some stuff
            audiodevice->StopCD();
            SND_DeviceManager::Unsubscribe();
            
            if (ketsjiengine)
            {
                  delete ketsjiengine;
                  ketsjiengine = NULL;
            }
            if (kxsystem)
            {
                  delete kxsystem;
                  kxsystem = NULL;
            }
            if (networkdevice)
            {
                  delete networkdevice;
                  networkdevice = NULL;
            }
            if (keyboarddevice)
            {
                  delete keyboarddevice;
                  keyboarddevice = NULL;
            }
            if (mousedevice)
            {
                  delete mousedevice;
                  mousedevice = NULL;
            }
            if (rasterizer)
            {
                  delete rasterizer;
                  rasterizer = NULL;
            }
            if (rendertools)
            {
                  delete rendertools;
                  rendertools = NULL;
            }
            if (canvas)
            {
                  delete canvas;
                  canvas = NULL;
            }
      } while (exitrequested == KX_EXIT_REQUEST_RESTART_GAME || exitrequested == KX_EXIT_REQUEST_START_OTHER_GAME);

      if (bfd) BLO_blendfiledata_free(bfd);
}

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