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