dungeon_crawler: 45172d087ebe prototype/src/main.cc

dungeon_crawler

view prototype/src/main.cc @ 69:45172d087ebe

fixed some windows compatibility crap fixed a terrible stack overrun in psys (TODO: remember to fix in libpsys too)

author	John Tsiombikas <nuclear@member.fsf.org>
date	Sun, 07 Oct 2012 03:42:44 +0200
parents	7f52d6310317
children	a27528035e20

line source

1 #include <stdio.h>

2 #include <stdlib.h>

3 #include <assert.h>

4 #include "opengl.h"

5 #include "psys/psys.h"

6 #include "level.h"

7 #include "texture.h"

8 #include "camera.h"

9 #include "datapath.h"

10 #include "tileset.h"

11 #include "renderer.h"

12 #include "renderer_deferred.h"

13 #include "renderer_multipass.h"

14 #include "cmdcon.h"

15 #include "cfg.h"

16 #include "timer.h"

17 #include "audio/audio.h"

18 #include "audio/source.h"

19 #include "audio/ovstream.h"

21 bool init(int xsz, int ysz);

22 void cleanup();

23 void idle();

24 void disp();

25 void draw();

26 void view_matrix(int eye);

27 void proj_matrix(int eye);

28 void update(unsigned long msec);

29 void reshape(int x, int y);

30 void keyb(unsigned char key, int x, int y);

31 void key_release(unsigned char key, int x, int y);

32 void keyb_con(unsigned char key, int x, int y);

33 void mouse(int bn, int state, int x, int y);

34 void motion(int x, int y);

35 unsigned int load_psys_tex(const char *fname, void *cls);

37 static TileSet *tileset;

38 static Level *level;

40 static FpsCamera cam;

41 static bool keystate[256];

43 static float stereo_focus_dist = 0.25;

44 static float stereo_eye_sep = stereo_focus_dist / 30.0;

46 static bool show_con;

48 static AudioSource *move_sound;

49 static OggVorbisStream *music;

51 int main(int argc, char **argv)

52 {

53 glutInit(&argc, argv);

55 if(!cfg.parse_args(argc, argv)) {

56 return 1;

57 }

59 glutInitWindowSize(cfg.width, cfg.height);

60 glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE | (cfg.stereo ? GLUT_STEREO : 0));

61 glutCreateWindow("dungeon crawler prototype");

63 glutIdleFunc(idle);

64 glutDisplayFunc(disp);

65 glutReshapeFunc(reshape);

66 glutKeyboardFunc(keyb);

67 glutKeyboardUpFunc(key_release);

68 glutMouseFunc(mouse);

69 glutMotionFunc(motion);

71 glewInit();

73 if(!init(cfg.width, cfg.height)) {

74 return 1;

75 }

76 atexit(cleanup);

78 glutMainLoop();

79 }

81 bool init(int xsz, int ysz)

82 {

83 // backup light for the forward crappy renderer

84 glEnable(GL_LIGHTING);

85 glEnable(GL_LIGHT0);

87 float ldir[] = {0, 0, -0.5, 1};

88 glLightfv(GL_LIGHT0, GL_POSITION, ldir);

89 float lcol[] = {1, 1, 1, 1};

90 glLightfv(GL_LIGHT0, GL_DIFFUSE, lcol);

91 glLightfv(GL_LIGHT0, GL_SPECULAR, lcol);

93 glEnable(GL_DEPTH_TEST);

94 glEnable(GL_CULL_FACE);

95 glEnable(GL_MULTISAMPLE);

97 add_data_path(".");

98 add_data_path("data");

99 add_data_path("data/audio");

100 add_data_path("sdr");

101

102 if(cfg.sound && !init_audio()) {

103 fprintf(stderr, "failed to initialize audio, continuing silently\n");

104 cfg.sound = false;

105 }

106 if(cfg.sound) {

107 move_sound = new AudioSource;

108 move_sound->set_volume(0.4);

109

110 music = new OggVorbisStream;

111 if(music->open(datafile_path("bgtrack.ogg").c_str())) {

112 music->set_volume(0.6);

113 music->play(PlayMode::loop);

114 } else {

115 delete music;

116 music = 0;

117 }

118 }

119

120 switch(cfg.rend) {

121 case Config::Renderer::mrt:

122 rend = new DeferredRenderer;

123 if(!rend->init(xsz, ysz)) {

124 fprintf(stderr, "failed to initialize deferred mrt renderer\n");

125 delete rend;

126 return false;

127 }

128 break;

129

130 case Config::Renderer::multipass:

131 rend = new MultipassRenderer;

132 if(!rend->init(xsz, ysz)) {

133 fprintf(stderr, "failed to initialize multipass deferred renderer\n");

134 delete rend;

135 return false;

136 }

137 break;

138

139 case Config::Renderer::fwd:

140 rend = new FwdRenderer;

141 if(!rend->init(xsz, ysz)) {

142 fprintf(stderr, "failed to initialize forward renderer\n");

143 delete rend;

144 return false;

145 }

146 break;

147

148 default:

149 // try each in turn falling back to progressively worse renderers

150 rend = new DeferredRenderer;

151 if(!rend->init(xsz, ysz)) {

152 printf("falling back to multipass renderer...\n");

153

154 delete rend;

155 rend = new MultipassRenderer();

156 if(!rend->init(xsz, ysz)) {

157 printf("falling back to crappy renderer...\n");

158

159 rend = new FwdRenderer();

160 if(!rend->init(xsz, ysz)) {

161 fprintf(stderr, "failed to create renderer\n");

162 return false;

163 }

164 }

165 }

166 }

167

168 if(!init_cmdcon()) {

169 return false;

170 }

171

172 psys_texture_loader(load_psys_tex, 0, 0);

173

174 // load a tileset

175 tileset = new TileSet;

176 printf("loading tileset: %s\n", cfg.tileset_file);

177 if(!tileset->load(datafile_path(cfg.tileset_file).c_str())) {

178 return false;

179 }

180 set_active_tileset(tileset);

181

182 level = new Level;

183 printf("loading level: %s\n", cfg.level_file);

184 if(!level->load(datafile_path(cfg.level_file).c_str())) {

185 return false;

186 }

187

188 cam.input_move(0, 0.5, 0);

189

190 return true;

191 }

192

193 void cleanup()

194 {

195 delete level;

196 delete tileset;

197 delete rend;

198

199 cleanup_cmdcon();

200

201 if(cfg.sound) {

202 delete music;

203 delete move_sound;

204 destroy_audio();

205 }

206 }

207

208 void idle()

209 {

210 glutPostRedisplay();

211 }

212

213 void disp()

214 {

215 update(get_time_msec());

216

217 if(cfg.stereo) {

218 glDrawBuffer(GL_BACK_LEFT);

219

220 glMatrixMode(GL_PROJECTION);

221 glLoadIdentity();

222 proj_matrix(-1);

223 glMatrixMode(GL_MODELVIEW);

224 glLoadIdentity();

225 view_matrix(-1);

226

227 draw();

228

229 glDrawBuffer(GL_BACK_RIGHT);

230

231 glMatrixMode(GL_PROJECTION);

232 glLoadIdentity();

233 proj_matrix(1);

234 glMatrixMode(GL_MODELVIEW);

235 glLoadIdentity();

236 view_matrix(1);

237

238 draw();

239 } else {

240 glMatrixMode(GL_PROJECTION);

241 glLoadIdentity();

242 proj_matrix(0);

243 glMatrixMode(GL_MODELVIEW);

244 glLoadIdentity();

245 view_matrix(0);

246

247 draw();

248 }

249

250 glutSwapBuffers();

251 assert(glGetError() == GL_NO_ERROR);

252 }

253

254 void draw()

255 {

256 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

257

258 rend->render(level);

259

260 if(show_con) {

261 draw_cmdcon();

262 }

263 }

264

265 void view_matrix(int eye)

266 {

267 float offs = stereo_eye_sep * eye * 0.5;

268 glTranslatef(-offs, 0, 0);

269 cam.use_inverse();

270 }

271

272 void proj_matrix(int eye)

273 {

274 static const float fov = M_PI / 4.0;

275 static const float near_clip = 0.1;

276 static const float far_clip = 100.0;

277

278 float top = near_clip * tan(fov * 0.5);

279 float right = top * (float)cfg.width / (float)cfg.height;

280

281 float frust_shift = -(float)eye * (stereo_eye_sep * 0.5 * near_clip / stereo_focus_dist);

282 glFrustum(-right + frust_shift, right + frust_shift, -top, top, near_clip, far_clip);

283 }

284

285

286 void update(unsigned long msec)

287 {

288 static unsigned long last_upd;

289

290 if(last_upd == 0) {

291 last_upd = msec;

292 }

293 float dt = (float)(msec - last_upd) / 1000.0;

294

295 float offs = 2.0 * dt;

296 float dx = 0, dy = 0;

297

298 // handle key input

299 bool did_move = false;

300 if(keystate['w'] || keystate['W']) {

301 dy -= offs;

302 did_move = true;

303 }

304 if(keystate['s'] || keystate['S']) {

305 dy += offs;

306 did_move = true;

307 }

308 if(keystate['d'] || keystate['D']) {

309 dx += offs;

310 did_move = true;

311 }

312 if(keystate['a'] || keystate['A']) {

313 dx -= offs;

314 did_move = true;

315 }

316

317 cam.input_move(dx, 0, dy);

318

319 tileset->update_tiles(msec);

320

321 level->set_player_position(cam.get_position());

322 level->update(msec, dt);

323

324 if(cfg.sound) {

325 // set the listener matrix

326 set_audio_listener(cam.matrix());

327

328 // play the walking sound if we're walking

329 int cellx, celly;

330 level->get_cell_coords_at(cam.get_position(), &cellx, &celly);

331

332 const AudioSample *move_sample;

333 if(did_move && (move_sample = level->get_sample(cellx, celly, TILE_SAMPLE_WALK))) {

334 if(move_sample != move_sound->get_sample()) {

335 move_sound->stop();

336 move_sound->set_sample(move_sample);

337 move_sound->play();

338 }

339 } else {

340 if(move_sound->get_sample()) {

341 move_sound->stop();

342 move_sound->set_sample(0);

343 }

344 }

345 }

346

347 last_upd = msec;

348 }

349

350 void reshape(int x, int y)

351 {

352 glViewport(0, 0, x, y);

353 cfg.width = x;

354 cfg.height = y;

355

356 rend->resize(x, y);

357 }

358

359 static bool stereo_shift_pressed;

360

361 void keyb(unsigned char key, int x, int y)

362 {

363 switch(key) {

364 case 27:

365 exit(0);

366

367 case '`':

368 show_con = true;

369 glutKeyboardFunc(keyb_con);

370 glutKeyboardUpFunc(0);

371 glutPostRedisplay();

372 break;

373

374 case 'z':

375 stereo_shift_pressed = true;

376 break;

377

378 case 'p':

379 {

380 Vector3 pos = cam.get_position();

381 int cell_x, cell_y;

382 level->get_cell_coords_at(pos, &cell_x, &cell_y);

383 printf("Current position: [%.2f %.2f %.2f] cell: [%d %d]\n", pos.x, pos.y, pos.z,

384 cell_x, cell_y);

385 }

386 break;

387

388 case 'P':

389 {

390 Vector3 pos = cam.get_position();

391 int cell_x, cell_y;

392 level->get_cell_coords_at(pos, &cell_x, &cell_y);

393 AudioSample *sample = level->get_sample(cell_x, cell_y, TILE_SAMPLE_WALK);

394 printf("walk sample: %p\n", (void*)sample);

395 }

396 break;

397

398

399 case '\n':

400 case '\r':

401 {

402 static bool fullscr;

403 if(glutGetModifiers() & GLUT_ACTIVE_ALT) {

404 fullscr = !fullscr;

405 if(fullscr) {

406 glutFullScreen();

407 } else {

408 glutPositionWindow(20, 20);

409 }

410 }

411 }

412 break;

413

414 default:

415 break;

416 }

417

418 keystate[key] = true;

419 }

420

421 void key_release(unsigned char key, int x, int y)

422 {

423 switch(key) {

424 case 'z':

425 stereo_shift_pressed = false;

426 break;

427

428 default:

429 break;

430 }

431

432 keystate[key] = false;

433 }

434

435 void keyb_con(unsigned char key, int x, int y)

436 {

437 if(key == '`' || key == 27) {

438 show_con = false;

439 glutKeyboardFunc(keyb);

440 glutKeyboardUpFunc(key_release);

441 glutPostRedisplay();

442 } else {

443 cmdcon_keypress(key);

444 }

445 }

446

447 static int prev_x, prev_y;

448 static bool bnstate[32];

449

450 void mouse(int bn, int state, int x, int y)

451 {

452 prev_x = x;

453 prev_y = y;

454 bnstate[bn - GLUT_LEFT_BUTTON] = state == GLUT_DOWN;

455 }

456

457 void motion(int x, int y)

458 {

459 int dx = x - prev_x;

460 int dy = y - prev_y;

461 prev_x = x;

462 prev_y = y;

463

464 if(stereo_shift_pressed) {

465 if(dy != 0) {

466 stereo_focus_dist += dy * 0.01;

467 stereo_eye_sep = stereo_focus_dist / 30.0;

468 printf("foc: %f, sep: %f\n", stereo_focus_dist, stereo_eye_sep);

469 glutPostRedisplay();

470 }

471 return;

472 }

473

474 if(bnstate[0]) {

475 cam.input_rotate(dy * 0.0075, dx * 0.0075, 0);

476 glutPostRedisplay();

477 }

478 if(bnstate[2]) {

479 cam.input_zoom(dy * 0.1);

480 glutPostRedisplay();

481 }

482 }

483

484 unsigned int load_psys_tex(const char *fname, void *cls)

485 {

486 TextureSet *texset = tileset->get_textures();

487 return texset->get(fname);

488 }