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