src/scene-manager.cpp

   1 /* guile-irrlicht --- GNU Guile bindings for Irrlicht Engine
   2
   3    Copyright (C) 2020 Javier Sancho <jsf@jsancho.org>
   4
   5    This file is part of guile-irrlicht.
   6
   7    guile-irrlicht is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU Lesser General Public License as
   9    published by the Free Software Foundation; either version 3 of the
  10    License, or (at your option) any later version.
  11
  12    guile-irrlicht is distributed in the hope that it will be useful, but
  13    WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    General Public License for more details.
  16
  17    You should have received a copy of the GNU Lesser General Public
  18    License along with guile-irrlicht. If not, see
  19    <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include <irrlicht/irrlicht.h>
  23 #include <libguile.h>
  24
  25 #include "animated-mesh.h"
  26 #include "animated-mesh-scene-node.h"
  27 #include "camera-scene-node.h"
  28 #include "device.h"
  29 #include "scene-manager.h"
  30 #include "scene-node.h"
  31 #include "vector3d.h"
  32 #include "wrapped.h"
  33
  34 extern "C" {
  35
  36   void
  37   init_scene_manager (void)
  38   {
  39     init_scene_manager_type ();
  40     scm_c_define_gsubr ("add-animated-mesh-scene-node!", 2, 0, 1,
  41                         (scm_t_subr)irr_scene_addAnimatedMeshSceneNode);
  42     scm_c_define_gsubr ("add-camera-scene-node!", 1, 0, 1,
  43                         (scm_t_subr)irr_scene_addCameraSceneNode);
  44     scm_c_define_gsubr ("get-mesh", 2, 0, 0, (scm_t_subr)irr_scene_getMesh);
  45     scm_c_define_gsubr ("get-scene-manager", 1, 0, 0, (scm_t_subr)irr_getSceneManager);
  46     scm_c_export ("add-animated-mesh-scene-node!", "add-camera-scene-node!",
  47                   "get-mesh", "get-scene-manager", NULL);
  48   }
  49
  50   DEFINE_WRAPPED_TYPE (irr::scene::ISceneManager*, "scene-manager",
  51                        init_scene_manager_type, scene_manager_p,
  52                        wrap_scene_manager, unwrap_scene_manager);
  53
  54   SCM
  55   irr_scene_addAnimatedMeshSceneNode (SCM wrapped_scene_manager,
  56                                       SCM mesh,
  57                                       SCM rest)
  58   {
  59     SCM parent = scm_from_bool (0);
  60     SCM id = scm_from_int32 (-1);
  61     SCM position = scm_list_3 (scm_from_double (0),
  62                                scm_from_double (0),
  63                                scm_from_double (0));
  64     SCM rotation = scm_list_3 (scm_from_double (0),
  65                                scm_from_double (0),
  66                                scm_from_double (0));
  67     SCM scale = scm_list_3 (scm_from_double (1),
  68                             scm_from_double (1),
  69                             scm_from_double (1));
  70     SCM also_add_if_mesh_pointer_zero = scm_from_bool (0);
  71
  72     scm_c_bind_keyword_arguments ("add-animated-mesh-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
  73                                   scm_from_utf8_keyword ("parent"), &parent,
  74                                   scm_from_utf8_keyword ("id"), &id,
  75                                   scm_from_utf8_keyword ("position"), &position,
  76                                   scm_from_utf8_keyword ("rotation"), &rotation,
  77                                   scm_from_utf8_keyword ("scale"), &scale,
  78                                   scm_from_utf8_keyword ("also-add-if-mesh-pointer-zero"), &also_add_if_mesh_pointer_zero,
  79                                   SCM_UNDEFINED);
  80
  81     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
  82     irr::scene::IAnimatedMeshSceneNode* node =
  83       smgr->addAnimatedMeshSceneNode (unwrap_animated_mesh (mesh),
  84                                       scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
  85                                       scm_to_int32 (id),
  86                                       scm_to_vector3df (position),
  87                                       scm_to_vector3df (rotation),
  88                                       scm_to_vector3df (scale),
  89                                       scm_to_bool (also_add_if_mesh_pointer_zero));
  90     return wrap_animated_mesh_scene_node (node);
  91   }
  92
  93   SCM
  94   irr_scene_addCameraSceneNode (SCM wrapped_scene_manager,
  95                                 SCM rest)
  96   {
  97     SCM parent = scm_from_bool (0);
  98     SCM position = scm_list_3 (scm_from_double (0),
  99                                scm_from_double (0),
 100                                scm_from_double (0));
 101     SCM lookat = scm_list_3 (scm_from_double (0),
 102                              scm_from_double (0),
 103                              scm_from_double (100));
 104     SCM id = scm_from_int32 (-1);
 105     SCM make_active = scm_from_bool (1);
 106
 107     scm_c_bind_keyword_arguments ("add-camera-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
 108                                   scm_from_utf8_keyword ("parent"), &parent,
 109                                   scm_from_utf8_keyword ("position"), &position,
 110                                   scm_from_utf8_keyword ("lookat"), &lookat,
 111                                   scm_from_utf8_keyword ("id"), &id,
 112                                   scm_from_utf8_keyword ("make-active"), &make_active,
 113                                   SCM_UNDEFINED);
 114
 115     irr::scene::ISceneManager* scene_manager = unwrap_scene_manager (wrapped_scene_manager);
 116     irr::scene::ICameraSceneNode* camera =
 117       scene_manager->addCameraSceneNode (scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 118                                          scm_to_vector3df (position),
 119                                          scm_to_vector3df (lookat),
 120                                          scm_to_int32 (id),
 121                                          scm_to_bool (make_active));
 122     return wrap_camera_scene_node (camera);
 123   }
 124
 125   SCM
 126   irr_scene_getMesh (SCM wrapped_scene_manager,
 127                      SCM filename)
 128   {
 129     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 130     irr::scene::IAnimatedMesh* mesh = smgr->getMesh(scm_to_utf8_stringn (filename, NULL));
 131     return wrap_animated_mesh (mesh);
 132   }
 133
 134   SCM
 135   irr_getSceneManager (SCM wrapped_obj)
 136   {
 137     irr::scene::ISceneManager* scene_manager;
 138     if (device_p (wrapped_obj))
 139       {
 140         scene_manager = unwrap_device (wrapped_obj)->getSceneManager ();
 141       }
 142     else
 143       {
 144         scm_error (scm_arg_type_key, NULL, "Cannot get scene manager from object: ~S",
 145                    scm_list_1 (wrapped_obj), scm_list_1 (wrapped_obj));
 146       }
 147     return wrap_scene_manager (scene_manager);
 148   }
 149
 150 }