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