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 "mesh.h"
  30 #include "mesh-scene-node.h"
  31 #include "scene-manager.h"
  32 #include "scene-node.h"
  33 #include "vector3d.h"
  34 #include "wrapped.h"
  35
  36 extern "C" {
  37
  38   void
  39   init_scene_manager (void)
  40   {
  41     init_scene_manager_type ();
  42     scm_c_define_gsubr ("add-animated-mesh-scene-node!", 2, 0, 1,
  43                         (scm_t_subr)irr_scene_addAnimatedMeshSceneNode);
  44     scm_c_define_gsubr ("add-camera-scene-node!", 1, 0, 1,
  45                         (scm_t_subr)irr_scene_addCameraSceneNode);
  46     scm_c_define_gsubr ("add-octree-scene-node!", 2, 0, 1,
  47                         (scm_t_subr)irr_scene_addOctreeSceneNode);
  48     scm_c_define_gsubr ("get-mesh", 2, 0, 0, (scm_t_subr)irr_scene_getMesh);
  49     scm_c_define_gsubr ("get-scene-manager", 1, 0, 0, (scm_t_subr)irr_getSceneManager);
  50     scm_c_export ("add-animated-mesh-scene-node!", "add-camera-scene-node!",
  51                   "add-octree-scene-node!", "get-mesh", "get-scene-manager", NULL);
  52   }
  53
  54   DEFINE_WRAPPED_TYPE (irr::scene::ISceneManager*, "scene-manager",
  55                        init_scene_manager_type, scene_manager_p,
  56                        wrap_scene_manager, unwrap_scene_manager);
  57
  58   SCM
  59   irr_scene_addAnimatedMeshSceneNode (SCM wrapped_scene_manager,
  60                                       SCM mesh,
  61                                       SCM rest)
  62   {
  63     SCM parent = scm_from_bool (0);
  64     SCM id = scm_from_int32 (-1);
  65     SCM position = scm_list_3 (scm_from_double (0),
  66                                scm_from_double (0),
  67                                scm_from_double (0));
  68     SCM rotation = scm_list_3 (scm_from_double (0),
  69                                scm_from_double (0),
  70                                scm_from_double (0));
  71     SCM scale = scm_list_3 (scm_from_double (1),
  72                             scm_from_double (1),
  73                             scm_from_double (1));
  74     SCM also_add_if_mesh_pointer_zero = scm_from_bool (0);
  75
  76     scm_c_bind_keyword_arguments ("add-animated-mesh-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
  77                                   scm_from_utf8_keyword ("parent"), &parent,
  78                                   scm_from_utf8_keyword ("id"), &id,
  79                                   scm_from_utf8_keyword ("position"), &position,
  80                                   scm_from_utf8_keyword ("rotation"), &rotation,
  81                                   scm_from_utf8_keyword ("scale"), &scale,
  82                                   scm_from_utf8_keyword ("also-add-if-mesh-pointer-zero"), &also_add_if_mesh_pointer_zero,
  83                                   SCM_UNDEFINED);
  84
  85     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
  86     irr::scene::IAnimatedMeshSceneNode* node =
  87       smgr->addAnimatedMeshSceneNode (unwrap_animated_mesh (mesh),
  88                                       scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
  89                                       scm_to_int32 (id),
  90                                       scm_to_vector3df (position),
  91                                       scm_to_vector3df (rotation),
  92                                       scm_to_vector3df (scale),
  93                                       scm_to_bool (also_add_if_mesh_pointer_zero));
  94     return wrap_animated_mesh_scene_node (node);
  95   }
  96
  97   SCM
  98   irr_scene_addCameraSceneNode (SCM wrapped_scene_manager,
  99                                 SCM rest)
 100   {
 101     SCM parent = scm_from_bool (0);
 102     SCM position = scm_list_3 (scm_from_double (0),
 103                                scm_from_double (0),
 104                                scm_from_double (0));
 105     SCM lookat = scm_list_3 (scm_from_double (0),
 106                              scm_from_double (0),
 107                              scm_from_double (100));
 108     SCM id = scm_from_int32 (-1);
 109     SCM make_active = scm_from_bool (1);
 110
 111     scm_c_bind_keyword_arguments ("add-camera-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
 112                                   scm_from_utf8_keyword ("parent"), &parent,
 113                                   scm_from_utf8_keyword ("position"), &position,
 114                                   scm_from_utf8_keyword ("lookat"), &lookat,
 115                                   scm_from_utf8_keyword ("id"), &id,
 116                                   scm_from_utf8_keyword ("make-active"), &make_active,
 117                                   SCM_UNDEFINED);
 118
 119     irr::scene::ISceneManager* scene_manager = unwrap_scene_manager (wrapped_scene_manager);
 120     irr::scene::ICameraSceneNode* camera =
 121       scene_manager->addCameraSceneNode (scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 122                                          scm_to_vector3df (position),
 123                                          scm_to_vector3df (lookat),
 124                                          scm_to_int32 (id),
 125                                          scm_to_bool (make_active));
 126     return wrap_camera_scene_node (camera);
 127   }
 128
 129   SCM
 130   irr_scene_addOctreeSceneNode (SCM wrapped_scene_manager,
 131                                 SCM wrapped_mesh,
 132                                 SCM rest)
 133   {
 134     SCM parent = scm_from_bool (0);
 135     SCM id = scm_from_int32 (-1);
 136     SCM minimal_polys_per_node = scm_from_int32 (256);
 137     SCM also_add_if_mesh_pointer_zero = scm_from_bool (0);
 138
 139     scm_c_bind_keyword_arguments ("add-octree-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
 140                                   scm_from_utf8_keyword ("parent"), &parent,
 141                                   scm_from_utf8_keyword ("id"), &id,
 142                                   scm_from_utf8_keyword ("minimal-polys-per-node"), &minimal_polys_per_node,
 143                                   scm_from_utf8_keyword ("also-add-if-mesh-pointer-zero"), &also_add_if_mesh_pointer_zero,
 144                                   SCM_UNDEFINED);
 145
 146     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 147     irr::scene::IMeshSceneNode* node;
 148     if (animated_mesh_p (wrapped_mesh))
 149       {
 150         node = smgr->addOctreeSceneNode (unwrap_animated_mesh (wrapped_mesh),
 151                                          scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 152                                          scm_to_int32 (id),
 153                                          scm_to_int32 (minimal_polys_per_node),
 154                                          scm_to_bool (also_add_if_mesh_pointer_zero));
 155       }
 156     else
 157       {
 158         node = smgr->addOctreeSceneNode (unwrap_mesh (wrapped_mesh),
 159                                          scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 160                                          scm_to_int32 (id),
 161                                          scm_to_int32 (minimal_polys_per_node),
 162                                          scm_to_bool (also_add_if_mesh_pointer_zero));
 163       }
 164     return wrap_mesh_scene_node (node);
 165   }
 166
 167   SCM
 168   irr_scene_getMesh (SCM wrapped_scene_manager,
 169                      SCM filename)
 170   {
 171     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 172     irr::scene::IAnimatedMesh* mesh = smgr->getMesh(scm_to_utf8_stringn (filename, NULL));
 173     return wrap_animated_mesh (mesh);
 174   }
 175
 176   SCM
 177   irr_getSceneManager (SCM wrapped_obj)
 178   {
 179     irr::scene::ISceneManager* scene_manager;
 180     if (device_p (wrapped_obj))
 181       {
 182         scene_manager = unwrap_device (wrapped_obj)->getSceneManager ();
 183       }
 184     else
 185       {
 186         scm_error (scm_arg_type_key, NULL, "Cannot get scene manager from object: ~S",
 187                    scm_list_1 (wrapped_obj), scm_list_1 (wrapped_obj));
 188       }
 189     return wrap_scene_manager (scene_manager);
 190   }
 191
 192 }