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 "box3d.h"
  28 #include "camera-scene-node.h"
  29 #include "device.h"
  30 #include "keymap.h"
  31 #include "material.h"
  32 #include "mesh.h"
  33 #include "mesh-scene-node.h"
  34 #include "scene-manager.h"
  35 #include "scene-node.h"
  36 #include "scene-node-animator.h"
  37 #include "vector3d.h"
  38 #include "wrapped.h"
  39
  40 extern "C" {
  41
  42   void
  43   init_scene_manager (void)
  44   {
  45     init_scene_manager_type ();
  46     scm_c_define_gsubr ("add-animated-mesh-scene-node!", 2, 0, 1,
  47                         (scm_t_subr)irr_scene_addAnimatedMeshSceneNode);
  48     scm_c_define_gsubr ("add-camera-scene-node!", 1, 0, 1,
  49                         (scm_t_subr)irr_scene_addCameraSceneNode);
  50     scm_c_define_gsubr ("add-camera-scene-node-fps!", 1, 0, 1,
  51                         (scm_t_subr)irr_scene_addCameraSceneNodeFPS);
  52     scm_c_define_gsubr ("add-cube-scene-node!", 1, 0, 1,
  53                         (scm_t_subr)irr_scene_addCubeSceneNode);
  54     scm_c_define_gsubr ("add-custom-scene-node!", 5, 0, 1,
  55                         (scm_t_subr)irr_scene_addCustomSceneNode);
  56     scm_c_define_gsubr ("add-octree-scene-node!", 2, 0, 1,
  57                         (scm_t_subr)irr_scene_addOctreeSceneNode);
  58     scm_c_define_gsubr ("add-sphere-scene-node!", 1, 0, 1,
  59                         (scm_t_subr)irr_scene_addSphereSceneNode);
  60     scm_c_define_gsubr ("create-rotation-animator", 2, 0, 0,
  61                         (scm_t_subr)irr_scene_createRotationAnimator);
  62     scm_c_define_gsubr ("get-mesh", 2, 0, 0, (scm_t_subr)irr_scene_getMesh);
  63     scm_c_define_gsubr ("get-root-scene-node", 1, 0, 0, (scm_t_subr)irr_scene_getRootSceneNode);
  64     scm_c_define_gsubr ("get-scene-manager", 1, 0, 0, (scm_t_subr)irr_getSceneManager);
  65     scm_c_export ("add-animated-mesh-scene-node!", "add-camera-scene-node!",
  66                   "add-camera-scene-node-fps!", "add-custom-scene-node!", "add-cube-scene-node!",
  67                   "add-octree-scene-node!", "add-sphere-scene-node!", "create-rotation-animator",
  68                   "get-mesh", "get-root-scene-node", "get-scene-manager", NULL);
  69   }
  70
  71   DEFINE_WRAPPED_TYPE (irr::scene::ISceneManager*, "scene-manager",
  72                        init_scene_manager_type, scene_manager_p,
  73                        wrap_scene_manager, unwrap_scene_manager);
  74
  75   SCM
  76   irr_scene_addAnimatedMeshSceneNode (SCM wrapped_scene_manager,
  77                                       SCM mesh,
  78                                       SCM rest)
  79   {
  80     SCM parent = scm_from_bool (0);
  81     SCM id = scm_from_int32 (-1);
  82     SCM position = scm_list_3 (scm_from_double (0),
  83                                scm_from_double (0),
  84                                scm_from_double (0));
  85     SCM rotation = scm_list_3 (scm_from_double (0),
  86                                scm_from_double (0),
  87                                scm_from_double (0));
  88     SCM scale = scm_list_3 (scm_from_double (1),
  89                             scm_from_double (1),
  90                             scm_from_double (1));
  91     SCM also_add_if_mesh_pointer_zero = scm_from_bool (0);
  92
  93     scm_c_bind_keyword_arguments ("add-animated-mesh-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
  94                                   scm_from_utf8_keyword ("parent"), &parent,
  95                                   scm_from_utf8_keyword ("id"), &id,
  96                                   scm_from_utf8_keyword ("position"), &position,
  97                                   scm_from_utf8_keyword ("rotation"), &rotation,
  98                                   scm_from_utf8_keyword ("scale"), &scale,
  99                                   scm_from_utf8_keyword ("also-add-if-mesh-pointer-zero"), &also_add_if_mesh_pointer_zero,
 100                                   SCM_UNDEFINED);
 101
 102     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 103     irr::scene::IAnimatedMeshSceneNode* node =
 104       smgr->addAnimatedMeshSceneNode (unwrap_animated_mesh (mesh),
 105                                       scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 106                                       scm_to_int32 (id),
 107                                       scm_to_vector3df (position),
 108                                       scm_to_vector3df (rotation),
 109                                       scm_to_vector3df (scale),
 110                                       scm_to_bool (also_add_if_mesh_pointer_zero));
 111     return wrap_animated_mesh_scene_node (node);
 112   }
 113
 114   SCM
 115   irr_scene_addCameraSceneNode (SCM wrapped_scene_manager,
 116                                 SCM rest)
 117   {
 118     SCM parent = scm_from_bool (0);
 119     SCM position = scm_list_3 (scm_from_double (0),
 120                                scm_from_double (0),
 121                                scm_from_double (0));
 122     SCM lookat = scm_list_3 (scm_from_double (0),
 123                              scm_from_double (0),
 124                              scm_from_double (100));
 125     SCM id = scm_from_int32 (-1);
 126     SCM make_active = scm_from_bool (1);
 127
 128     scm_c_bind_keyword_arguments ("add-camera-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
 129                                   scm_from_utf8_keyword ("parent"), &parent,
 130                                   scm_from_utf8_keyword ("position"), &position,
 131                                   scm_from_utf8_keyword ("lookat"), &lookat,
 132                                   scm_from_utf8_keyword ("id"), &id,
 133                                   scm_from_utf8_keyword ("make-active"), &make_active,
 134                                   SCM_UNDEFINED);
 135
 136     irr::scene::ISceneManager* scene_manager = unwrap_scene_manager (wrapped_scene_manager);
 137     irr::scene::ICameraSceneNode* camera =
 138       scene_manager->addCameraSceneNode (scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 139                                          scm_to_vector3df (position),
 140                                          scm_to_vector3df (lookat),
 141                                          scm_to_int32 (id),
 142                                          scm_to_bool (make_active));
 143     return wrap_camera_scene_node (camera);
 144   }
 145
 146   SCM
 147   irr_scene_addCameraSceneNodeFPS (SCM wrapped_scene_manager,
 148                                    SCM rest)
 149   {
 150     SCM parent = scm_from_bool (0);
 151     SCM rotate_speed = scm_from_double (100);
 152     SCM move_speed = scm_from_double (0.5);
 153     SCM id = scm_from_int32 (-1);
 154     SCM key_map_array = scm_from_bool (0);
 155     SCM key_map_size = scm_from_int32 (0);
 156     SCM no_vertical_movement = scm_from_bool (0);
 157     SCM jump_speed = scm_from_double (0);
 158     SCM invert_mouse = scm_from_bool (0);
 159     SCM make_active = scm_from_bool (1);
 160
 161     scm_c_bind_keyword_arguments ("add-camera-scene-node-fps!", rest, (scm_t_keyword_arguments_flags)0,
 162                                   scm_from_utf8_keyword ("parent"), &parent,
 163                                   scm_from_utf8_keyword ("rotate-speed"), &rotate_speed,
 164                                   scm_from_utf8_keyword ("move-speed"), &move_speed,
 165                                   scm_from_utf8_keyword ("id"), &id,
 166                                   scm_from_utf8_keyword ("key-map-array"), &key_map_array,
 167                                   scm_from_utf8_keyword ("key-map-size"), &key_map_size,
 168                                   scm_from_utf8_keyword ("no-vertical-movement"), &no_vertical_movement,
 169                                   scm_from_utf8_keyword ("jump-speed"), &jump_speed,
 170                                   scm_from_utf8_keyword ("invert-mouse"), &invert_mouse,
 171                                   scm_from_utf8_keyword ("make-active"), &make_active,
 172                                   SCM_UNDEFINED);
 173
 174     irr::scene::ISceneManager* scene_manager = unwrap_scene_manager (wrapped_scene_manager);
 175     irr::scene::ICameraSceneNode* camera =
 176       scene_manager->addCameraSceneNodeFPS (scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 177                                             scm_to_double (rotate_speed),
 178                                             scm_to_double (move_speed),
 179                                             scm_to_int32 (id),
 180                                             scm_is_false (key_map_array) ? 0 : unwrap_keymap (key_map_array),
 181                                             scm_to_int32 (key_map_size),
 182                                             scm_to_bool (no_vertical_movement),
 183                                             scm_to_double (jump_speed),
 184                                             scm_to_bool (invert_mouse),
 185                                             scm_to_bool (make_active));
 186     return wrap_camera_scene_node (camera);
 187   }
 188
 189   SCM
 190   irr_scene_addCubeSceneNode (SCM wrapped_scene_manager,
 191                               SCM rest)
 192   {
 193     SCM size = scm_from_double (10);
 194     SCM parent = scm_from_bool (0);
 195     SCM id = scm_from_int32 (-1);
 196     SCM position = scm_list_3 (scm_from_double (0),
 197                                scm_from_double (0),
 198                                scm_from_double (0));
 199     SCM rotation = scm_list_3 (scm_from_double (0),
 200                                scm_from_double (0),
 201                                scm_from_double (0));
 202     SCM scale = scm_list_3 (scm_from_double (1),
 203                             scm_from_double (1),
 204                             scm_from_double (1));
 205
 206     scm_c_bind_keyword_arguments ("add-cube-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
 207                                   scm_from_utf8_keyword ("size"), &size,
 208                                   scm_from_utf8_keyword ("parent"), &parent,
 209                                   scm_from_utf8_keyword ("id"), &id,
 210                                   scm_from_utf8_keyword ("position"), &position,
 211                                   scm_from_utf8_keyword ("rotation"), &rotation,
 212                                   scm_from_utf8_keyword ("scale"), &scale,
 213                                   SCM_UNDEFINED);
 214
 215     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 216     irr::scene::IMeshSceneNode* node =
 217       smgr->addCubeSceneNode (scm_to_double (size),
 218                               scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 219                               scm_to_int32 (id),
 220                               scm_to_vector3df (position),
 221                               scm_to_vector3df (rotation),
 222                               scm_to_vector3df (scale));
 223     return wrap_mesh_scene_node (node);
 224   }
 225
 226   SCM
 227   irr_scene_addCustomSceneNode (SCM wrapped_scene_manager,
 228                                 SCM proc_render,
 229                                 SCM proc_get_bounding_box,
 230                                 SCM proc_get_material_count,
 231                                 SCM proc_get_material,
 232                                 SCM rest)
 233   {
 234     irr::scene::ISceneManager* scene_manager = unwrap_scene_manager (wrapped_scene_manager);
 235
 236     SCM parent = wrap_scene_node (scene_manager->getRootSceneNode ());
 237     SCM id = scm_from_int32 (-1);
 238     SCM position = scm_list_3 (scm_from_double (0),
 239                                scm_from_double (0),
 240                                scm_from_double (0));
 241     SCM rotation = scm_list_3 (scm_from_double (0),
 242                                scm_from_double (0),
 243                                scm_from_double (0));
 244     SCM scale = scm_list_3 (scm_from_double (1),
 245                             scm_from_double (1),
 246                             scm_from_double (1));
 247
 248     scm_c_bind_keyword_arguments ("add-custom-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
 249                                   scm_from_utf8_keyword ("parent"), &parent,
 250                                   scm_from_utf8_keyword ("id"), &id,
 251                                   scm_from_utf8_keyword ("position"), &position,
 252                                   scm_from_utf8_keyword ("rotation"), &rotation,
 253                                   scm_from_utf8_keyword ("scale"), &scale,
 254                                   SCM_UNDEFINED);
 255
 256     class CustomSceneNode : public irr::scene::ISceneNode
 257     {
 258       SCM scm_render;
 259       SCM scm_get_bounding_box;
 260       SCM scm_get_material_count;
 261       SCM scm_get_material;
 262
 263     public:
 264       CustomSceneNode (irr::scene::ISceneNode* parent,
 265                        irr::scene::ISceneManager* smgr,
 266                        irr::s32 id,
 267                        const irr::core::vector3df& position,
 268                        const irr::core::vector3df& rotation,
 269                        const irr::core::vector3df& scale,
 270                        SCM render,
 271                        SCM get_bounding_box,
 272                        SCM get_material_count,
 273                        SCM get_material)
 274         : irr::scene::ISceneNode (parent, smgr, id, position, rotation, scale)
 275       {
 276         scm_render = render;
 277         scm_get_bounding_box = get_bounding_box;
 278         scm_get_material_count = get_material_count;
 279         scm_get_material = get_material;
 280       }
 281
 282       virtual void OnRegisterSceneNode ()
 283       {
 284         if (IsVisible)
 285           {
 286             SceneManager->registerNodeForRendering (this);
 287           }
 288         ISceneNode::OnRegisterSceneNode ();
 289       }
 290
 291       virtual void render ()
 292       {
 293         scm_call_0 (scm_render);
 294       }
 295
 296       virtual const irr::core::aabbox3d<irr::f32>& getBoundingBox () const
 297       {
 298         SCM box = scm_call_0 (scm_get_bounding_box);
 299         return *(unwrap_box3d (box));
 300       }
 301
 302       virtual irr::u32 getMaterialCount () const
 303       {
 304         return scm_to_uint32 (scm_call_0 (scm_get_material_count));
 305       }
 306
 307       virtual irr::video::SMaterial& getMaterial (irr::u32 i)
 308       {
 309         SCM material = scm_call_1 (scm_get_material, scm_from_uint32 (i));
 310         return *(unwrap_material (material));
 311       }
 312     };
 313
 314     CustomSceneNode* node =
 315       new CustomSceneNode (unwrap_scene_node (parent),
 316                            scene_manager,
 317                            scm_to_int32 (id),
 318                            scm_to_vector3df (position),
 319                            scm_to_vector3df (rotation),
 320                            scm_to_vector3df (scale),
 321                            proc_render,
 322                            proc_get_bounding_box,
 323                            proc_get_material_count,
 324                            proc_get_material);
 325     return wrap_scene_node (node);
 326   }
 327
 328   SCM
 329   irr_scene_addOctreeSceneNode (SCM wrapped_scene_manager,
 330                                 SCM wrapped_mesh,
 331                                 SCM rest)
 332   {
 333     SCM parent = scm_from_bool (0);
 334     SCM id = scm_from_int32 (-1);
 335     SCM minimal_polys_per_node = scm_from_int32 (256);
 336     SCM also_add_if_mesh_pointer_zero = scm_from_bool (0);
 337
 338     scm_c_bind_keyword_arguments ("add-octree-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
 339                                   scm_from_utf8_keyword ("parent"), &parent,
 340                                   scm_from_utf8_keyword ("id"), &id,
 341                                   scm_from_utf8_keyword ("minimal-polys-per-node"), &minimal_polys_per_node,
 342                                   scm_from_utf8_keyword ("also-add-if-mesh-pointer-zero"), &also_add_if_mesh_pointer_zero,
 343                                   SCM_UNDEFINED);
 344
 345     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 346     irr::scene::IMeshSceneNode* node;
 347     if (animated_mesh_p (wrapped_mesh))
 348       {
 349         node = smgr->addOctreeSceneNode (unwrap_animated_mesh (wrapped_mesh),
 350                                          scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 351                                          scm_to_int32 (id),
 352                                          scm_to_int32 (minimal_polys_per_node),
 353                                          scm_to_bool (also_add_if_mesh_pointer_zero));
 354       }
 355     else
 356       {
 357         node = smgr->addOctreeSceneNode (unwrap_mesh (wrapped_mesh),
 358                                          scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 359                                          scm_to_int32 (id),
 360                                          scm_to_int32 (minimal_polys_per_node),
 361                                          scm_to_bool (also_add_if_mesh_pointer_zero));
 362       }
 363     return wrap_mesh_scene_node (node);
 364   }
 365
 366   SCM
 367   irr_scene_addSphereSceneNode (SCM wrapped_scene_manager,
 368                                 SCM rest)
 369   {
 370     SCM radius = scm_from_double (5.0);
 371     SCM poly_count = scm_from_int32 (16);
 372     SCM parent = scm_from_bool (0);
 373     SCM id = scm_from_int32 (-1);
 374     SCM position = scm_list_3 (scm_from_double (0),
 375                                scm_from_double (0),
 376                                scm_from_double (0));
 377     SCM rotation = scm_list_3 (scm_from_double (0),
 378                                scm_from_double (0),
 379                                scm_from_double (0));
 380     SCM scale = scm_list_3 (scm_from_double (1),
 381                             scm_from_double (1),
 382                             scm_from_double (1));
 383
 384     scm_c_bind_keyword_arguments ("add-sphere-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
 385                                   scm_from_utf8_keyword ("radius"), &radius,
 386                                   scm_from_utf8_keyword ("poly-count"), &poly_count,
 387                                   scm_from_utf8_keyword ("parent"), &parent,
 388                                   scm_from_utf8_keyword ("id"), &id,
 389                                   scm_from_utf8_keyword ("position"), &position,
 390                                   scm_from_utf8_keyword ("rotation"), &rotation,
 391                                   scm_from_utf8_keyword ("scale"), &scale,
 392                                   SCM_UNDEFINED);
 393
 394     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 395     irr::scene::IMeshSceneNode* node =
 396       smgr->addSphereSceneNode (scm_to_double (radius),
 397                                 scm_to_int32 (poly_count),
 398                                 scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 399                                 scm_to_int32 (id),
 400                                 scm_to_vector3df (position),
 401                                 scm_to_vector3df (rotation),
 402                                 scm_to_vector3df (scale));
 403     return wrap_mesh_scene_node (node);
 404   }
 405
 406   SCM
 407   irr_scene_createRotationAnimator (SCM wrapped_scene_manager,
 408                                     SCM rotation_speed)
 409   {
 410     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 411     irr::scene::ISceneNodeAnimator* anim =
 412       smgr->createRotationAnimator (scm_to_vector3df (rotation_speed));
 413     return wrap_scene_node_animator (anim);
 414   }
 415
 416   SCM
 417   irr_scene_getMesh (SCM wrapped_scene_manager,
 418                      SCM filename)
 419   {
 420     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 421     irr::scene::IAnimatedMesh* mesh = smgr->getMesh(scm_to_utf8_stringn (filename, NULL));
 422     return wrap_animated_mesh (mesh);
 423   }
 424
 425   SCM
 426   irr_scene_getRootSceneNode (SCM wrapped_scene_manager)
 427   {
 428     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 429     return wrap_scene_node (smgr->getRootSceneNode ());
 430   }
 431
 432   SCM
 433   irr_getSceneManager (SCM wrapped_obj)
 434   {
 435     irr::scene::ISceneManager* scene_manager;
 436     if (device_p (wrapped_obj))
 437       {
 438         scene_manager = unwrap_device (wrapped_obj)->getSceneManager ();
 439       }
 440     else
 441       {
 442         scm_error (scm_arg_type_key, NULL, "Cannot get scene manager from object: ~S",
 443                    scm_list_1 (wrapped_obj), scm_list_1 (wrapped_obj));
 444       }
 445     return wrap_scene_manager (scene_manager);
 446   }
 447
 448 }