tavli: c2a2069a49ec src/board.cc

tavli

view src/board.cc @ 22:c2a2069a49ec

slot highlighting, TODO blur

author	John Tsiombikas <nuclear@member.fsf.org>
date	Tue, 07 Jul 2015 21:56:37 +0300
parents	c3fbf9616dbd
children	3e6430028d54

line source

1 #include <float.h>

2 #include "opengl.h"

3 #include "board.h"

4 #include "game.h"

5 #include "meshgen.h"

6 #include "pnoise.h"

7 #include "revol.h"

8 #include "opt.h"

11 #define HSIZE 1.0

12 #define VSIZE (2.0 * HSIZE)

13 #define BOT_THICKNESS (HSIZE * 0.01)

14 #define WALL_THICKNESS (HSIZE * 0.05)

15 #define WALL_HEIGHT (HSIZE * 0.1)

16 #define GAP (HSIZE * 0.025)

17 #define HINGE_RAD (GAP * 0.5)

18 #define HINGE_HEIGHT (VSIZE * 0.075)

19 #define PIECE_RAD (0.45 * HSIZE / 5.0)

20 #define BOARD_OFFSET (HSIZE / 2.0 + WALL_THICKNESS + HINGE_RAD * 0.25)

21 #define PIECES_PER_LAYER 5

22 #define SLOT_WIDTH (HSIZE / 5.0)

23 #define SLOT_HEIGHT (VSIZE * 0.4)

26 static const vec2_t piece_cp[] = {

27 {0, 0.25},

28 {1, 0.25}, // mid0

29 {2, 0.5},

30 {2.5, 0.5}, // mid1

31 {3, 0.5},

32 {4, 0.5}, // mid2

33 {4, 0},

34 {4, -0.5}, // mid3

35 {3, -0.5},

36 {2.5, -0.5}, // mid4

37 {0, -0.5}

38 };

39 static const BezCurve piece_curve = {

40 sizeof piece_cp / sizeof *piece_cp,

41 (vec2_t*)piece_cp,

42 0.25 * PIECE_RAD

43 };

45 #define PIECE_HEIGHT (0.25 * PIECE_RAD)

48 Piece::Piece()

49 {

50 owner = 0;

51 slot = prev_slot = -1;

52 level = 0;

53 move_start = 0;

54 }

56 void Piece::move_to(int slot, int level, bool anim)

57 {

58 int prev_slot = this->slot;

59 int prev_level = this->level;

61 this->slot = slot;

62 this->level = level;

64 if(anim) {

65 this->prev_slot = prev_slot;

66 this->prev_level = prev_level;

67 move_start = cur_time;

68 }

69 }

71 Quad::Quad()

72 {

73 }

75 Quad::Quad(const Vector3 &v0, const Vector3 &v1, const Vector3 &v2, const Vector3 &v3)

76 : tri0(v0, v1, v2), tri1(v0, v2, v3)

77 {

78 }

80 bool Quad::intersect(const Ray &ray, HitPoint *hit) const

81 {

82 return tri0.intersect(ray, hit) || tri1.intersect(ray, hit);

83 }

85 Board::Board()

86 {

87 piece_obj = 0;

88 slot_sel = -1;

89 clear();

91 for(int i=0; i<NUM_SLOTS; i++) {

92 Vector3 p = piece_pos(i, 0);

93 bool top_side = i >= NUM_SLOTS / 2;

95 float z0 = top_side ? -PIECE_RAD : PIECE_RAD;

96 float z1 = top_side ? SLOT_HEIGHT : -SLOT_HEIGHT;

98 slotbb[i] = Quad(p + Vector3(-SLOT_WIDTH / 2.0, 0, z0),

99 p + Vector3(SLOT_WIDTH / 2.0, 0, z0),

100 p + Vector3(SLOT_WIDTH / 2.0, 0, z1),

101 p + Vector3(-SLOT_WIDTH / 2.0, 0, z1));

102 }

103 }

104

105 Board::~Board()

106 {

107 destroy();

108 }

109

110 bool Board::init()

111 {

112 if(!generate_textures()) {

113 return false;

114 }

115 if(!generate()) {

116 return false;

117 }

118

119 return true;

120 }

121

122 void Board::destroy()

123 {

124 for(size_t i=0; i<obj.size(); i++) {

125 delete obj[i];

126 }

127 obj.clear();

128

129 delete piece_obj;

130 piece_obj = 0;

131 }

132

133 void Board::clear()

134 {

135 memset(hist, 0, sizeof hist);

136

137 for(int i=0; i<MAX_PIECES; i++) {

138 pieces[i].owner = i < PLAYER_PIECES ? MINE : OTHER;

139 move_piece(i, -1, false);

140 }

141 }

142

143 void Board::setup()

144 {

145 static const int initial[] = { 0, 0, 0, 0, 5, 0, 3, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 2 };

146

147 clear();

148

149 int id = 0;

150 for(int i=0; i<NUM_SLOTS; i++) {

151 for(int j=0; j<initial[i]; j++) {

152 move_piece(id, i, false);

153 move_piece(PLAYER_PIECES + id, NUM_SLOTS - i - 1, false);

154 ++id;

155 }

156 }

157 }

158

159 int Board::slot_pieces(int slot) const

160 {

161 return hist[slot + 1];

162 }

163

164 bool Board::move_piece(int id, int slot, bool anim)

165 {

166 // TODO do validity checking first

167 int prev_slot = pieces[id].slot;

168

169 pieces[id].move_to(slot, slot_pieces(slot), anim);

170 --hist[prev_slot + 1];

171 ++hist[slot + 1];

172 return true;

173 }

174

175 Vector3 Board::piece_pos(int slot, int level) const

176 {

177 int top_side = slot / 10;

178 int sidx = (top_side ? (19 - slot) : slot) % 5;

179 int left_side = (top_side ? (19 - slot) : slot) / 5;

180

181 Vector3 pos;

182

183 if(left_side) {

184 pos.x = -(sidx * HSIZE / 5.0 + BOARD_OFFSET - HSIZE / 2.0) - PIECE_RAD;

185 } else {

186 pos.x = (4 - sidx) * HSIZE / 5.0 + BOARD_OFFSET - HSIZE / 2.0 + PIECE_RAD;

187 }

188

189 int layer = level / PIECES_PER_LAYER;

190 int layer_level = level % PIECES_PER_LAYER;

191

192 pos.y = (layer + 0.5) * PIECE_HEIGHT;

193

194 pos.z = (-VSIZE * 0.5 + PIECE_RAD + PIECE_RAD * 2.0 * layer_level);

195 if(!top_side) {

196 pos.z = -pos.z;

197 }

198

199 return pos;

200 }

201

202 int Board::slot_hit(const Ray &ray) const

203 {

204 for(int i=0; i<NUM_SLOTS; i++) {

205 if(slotbb[i].intersect(ray)) {

206 return i;

207 }

208 }

209 return -1;

210 }

211

212 void Board::select_slot(int idx)

213 {

214 slot_sel = idx < 0 || idx >= NUM_SLOTS ? -1 : idx;

215 }

216

217 int Board::get_selected_slot() const

218 {

219 return slot_sel;

220 }

221

222 void Board::draw() const

223 {

224 bool use_shadows = opt.shadows && sdr_shadow;

225 unsigned int board_sdr = use_shadows ? sdr_shadow : sdr_phong;

226 unsigned int piece_sdr = use_shadows ? sdr_shadow_notex : sdr_phong_notex;

227

228 for(size_t i=0; i<obj.size(); i++) {

229 if(wireframe) {

230 obj[i]->draw_wire();

231 obj[i]->draw_normals(0.075);

232 } else {

233 obj[i]->set_shader(board_sdr);

234 obj[i]->draw();

235 }

236 }

237

238 for(int i=0; i<MAX_PIECES; i++) {

239 Vector3 pos = piece_pos(pieces[i].slot, pieces[i].level);

240 piece_obj->xform().set_translation(pos);

241 piece_obj->mtl.diffuse = opt.piece_color[pieces[i].owner];

242 piece_obj->set_shader(piece_sdr);

243 piece_obj->draw();

244 }

245

246 /*static const float pal[][3] = {

247 {1, 0, 0},

248 {0, 1, 0},

249 {0, 0, 1},

250 {1, 1, 0},

251 {0, 1, 1},

252 {1, 0, 1}

253 };*/

254 int idx = slot_sel % NUM_SLOTS;

255 if(idx >= 0) {

256 glUseProgram(0);

257

258 glPushAttrib(GL_ENABLE_BIT);

259 glDisable(GL_LIGHTING);

260 glDisable(GL_CULL_FACE);

261 glEnable(GL_DEPTH_TEST);

262 glEnable(GL_TEXTURE_2D);

263 glBindTexture(GL_TEXTURE_2D, img_highlight.texture());

264 glEnable(GL_BLEND);

265 glBlendFunc(GL_SRC_ALPHA, GL_ONE);

266

267 glDepthMask(0);

268

269 glBegin(GL_TRIANGLES);

270 //glColor3fv(pal[idx % (sizeof pal / sizeof *pal)]);

271 glColor4f(1, 1, 1, 0.4);

272 glTexCoord2f(0, 0);

273 glVertex3f(slotbb[idx].tri0.v[0].x, slotbb[idx].tri0.v[0].y, slotbb[idx].tri0.v[0].z);

274 glTexCoord2f(1, 0);

275 glVertex3f(slotbb[idx].tri0.v[1].x, slotbb[idx].tri0.v[1].y, slotbb[idx].tri0.v[1].z);

276 glTexCoord2f(1, 1);

277 glVertex3f(slotbb[idx].tri0.v[2].x, slotbb[idx].tri0.v[2].y, slotbb[idx].tri0.v[2].z);

278 glTexCoord2f(0, 0);

279 glVertex3f(slotbb[idx].tri1.v[0].x, slotbb[idx].tri1.v[0].y, slotbb[idx].tri1.v[0].z);

280 glTexCoord2f(1, 1);

281 glVertex3f(slotbb[idx].tri1.v[1].x, slotbb[idx].tri1.v[1].y, slotbb[idx].tri1.v[1].z);

282 glTexCoord2f(0, 1);

283 glVertex3f(slotbb[idx].tri1.v[2].x, slotbb[idx].tri1.v[2].y, slotbb[idx].tri1.v[2].z);

284 glEnd();

285

286 glDepthMask(1);

287

288 glPopAttrib();

289 }

290 // TODO slot highlighting

291 }

292

293

294 bool Board::generate()

295 {

296 static const float board_spec = 0.4;

297

298 Mesh tmp;

299 Matrix4x4 xform;

300

301 obj.clear();

302

303 for(int i=0; i<2; i++) {

304 int sign = i * 2 - 1;

305

306 // generate bottom

307 Mesh *bottom = new Mesh;

308 gen_box(bottom, HSIZE, BOT_THICKNESS, HSIZE * 2.0);

309 xform.set_translation(Vector3(0, -BOT_THICKNESS / 2.0, 0));

310 bottom->apply_xform(xform);

311

312 Object *obottom = new Object;

313 obottom->set_mesh(bottom);

314 obottom->xform().set_translation(Vector3(sign * BOARD_OFFSET, 0, 0));

315 obottom->set_texture(img_field.texture());

316 obottom->mtl.specular = Vector3(board_spec, board_spec, board_spec);

317 obj.push_back(obottom);

318

319

320 // generate the 4 sides

321 Mesh *sides = new Mesh;

322 gen_box(sides, WALL_THICKNESS, WALL_HEIGHT, VSIZE + WALL_THICKNESS * 2);

323 xform.set_translation(Vector3(-(HSIZE + WALL_THICKNESS) / 2.0,

324 WALL_HEIGHT / 2.0 - BOT_THICKNESS, 0));

325 sides->apply_xform(xform);

326

327 gen_box(&tmp, WALL_THICKNESS, WALL_HEIGHT, VSIZE + WALL_THICKNESS * 2);

328 xform.set_translation(Vector3((HSIZE + WALL_THICKNESS) / 2.0,

329 WALL_HEIGHT / 2.0 - BOT_THICKNESS, 0));

330 tmp.apply_xform(xform);

331 sides->append(tmp);

332 tmp.clear();

333

334 gen_box(&tmp, HSIZE, WALL_HEIGHT, WALL_THICKNESS);

335 xform.set_translation(Vector3(0, WALL_HEIGHT / 2.0 - BOT_THICKNESS,

336 (VSIZE + WALL_THICKNESS) / 2.0));

337 tmp.apply_xform(xform);

338 sides->append(tmp);

339 tmp.clear();

340

341 gen_box(&tmp, HSIZE, WALL_HEIGHT, WALL_THICKNESS);

342 xform.set_translation(Vector3(0, WALL_HEIGHT / 2.0 - BOT_THICKNESS,

343 -(VSIZE + WALL_THICKNESS) / 2.0));

344 tmp.apply_xform(xform);

345 sides->append(tmp);

346 tmp.clear();

347

348 // generate texture coordinates

349 sides->texcoord_gen_box();

350

351 Object *osides = new Object;

352 osides->set_mesh(sides);

353 osides->xform() = obottom->xform();

354 osides->set_texture(img_wood.texture());

355 osides->tex_xform().set_scaling(Vector3(2, 2, 2));

356 osides->tex_xform().rotate(-Vector3(1, 0, 0.5), M_PI / 4.0);

357 osides->mtl.specular = Vector3(board_spec, board_spec, board_spec);

358 obj.push_back(osides);

359

360 }

361

362

363 // generate the hinges

364 Mesh *hinges = new Mesh;

365 for(int i=0; i<2; i++) {

366 float sign = i * 2 - 1;

367

368 // barrel

369 gen_cylinder(&tmp, HINGE_RAD, HINGE_HEIGHT, 8, 1, 1);

370 xform.reset_identity();

371 xform.translate(Vector3(0, WALL_HEIGHT - HINGE_RAD * 0.5, sign * VSIZE / 4.0));

372 xform.rotate(Vector3(-M_PI / 2.0, 0, 0));

373 tmp.apply_xform(xform);

374 hinges->append(tmp);

375

376 // flange

377 gen_plane(&tmp, HINGE_HEIGHT * 0.6, HINGE_HEIGHT * 0.8);

378 tmp.apply_xform(xform);

379

380 Matrix4x4 tex_xform;

381 tex_xform.set_rotation(Vector3(0, 0, M_PI / 2.0));

382 tmp.texcoord_apply_xform(tex_xform);

383 hinges->append(tmp);

384

385 // studs

386 for(int j=0; j<4; j++) {

387 Vector3 pos;

388

389 pos.x = (float)((j & 1) * 2 - 1) * HINGE_HEIGHT * 0.2;

390 pos.y = (float)((j & 2) - 1) * HINGE_HEIGHT * 0.3;

391

392 Matrix4x4 stud_xform = xform;

393 stud_xform.translate(pos);

394

395 Matrix4x4 squash;

396 squash.set_scaling(Vector3(1, 1, 0.5));

397

398 gen_sphere(&tmp, HINGE_RAD * 0.5, 8, 4);

399 tmp.apply_xform(stud_xform * squash);

400 hinges->append(tmp);

401 }

402 }

403

404 Object *ohinges = new Object;

405 ohinges->set_mesh(hinges);

406 ohinges->set_texture(img_hinge.texture());

407 obj.push_back(ohinges);

408

409 // debug object

410 /*

411 Mesh *dbgmesh = new Mesh;

412 gen_box(dbgmesh, 0.5, 0.5, 0.5);

413 xform.set_translation(Vector3(0, 0.4, 0));

414 xform.set_scaling(Vector3(1, 1, 1));

415 dbgmesh->apply_xform(xform);

416 Object *dbgobj = new Object;

417 dbgobj->set_mesh(dbgmesh);

418 dbgobj->set_texture(img_hinge.texture());

419 //dbgobj->tex_xform().set_scaling(Vector3(3, 3, 3));

420 obj.push_back(dbgobj);

421 */

422

423 Mesh *piece = new Mesh;

424 gen_revol(piece, 18, 17, bezier_revol, bezier_revol_normal, (void*)&piece_curve);

425

426 Object *opiece = new Object;

427 opiece->set_mesh(piece);

428 opiece->mtl.diffuse = Vector3(0.6, 0.6, 0.6);

429 opiece->mtl.specular = Vector3(0.8, 0.8, 0.8);

430 opiece->xform().set_translation(Vector3(0, 0.2, 0));

431 //obj.push_back(opiece);

432

433 piece_obj = opiece;

434

435 // meshgen stats

436 printf("Generated board:\n %u meshes\n", (unsigned int)obj.size());

437 unsigned int polycount = 0;

438 for(size_t i=0; i<obj.size(); i++) {

439 const Mesh *m = obj[i]->get_mesh();

440 polycount += m->get_poly_count();

441 }

442 printf(" %u polygons\n", polycount);

443

444 return true;

445 }

446

447 static float wood(float x, float y)

448 {

449 float u = x;

450 float v = y;

451 x += 1.0;

452 x *= 10.0;

453 y *= 20.0;

454

455 float len = sqrt(x * x + y * y) + turbulence2(u * 6.0, v * 12.0, 2) * 1.2 +

456 turbulence2(u * 0.5, v, 2) * 15.0;

457 float val = fmod(len, 1.0);

458

459 //val = val * 0.5 + 0.5;

460 return val < 0.0 ? 0.0 : (val > 1.0 ? 1.0 : val);

461 }

462

463 static float wood_tile(float x, float y)

464 {

465 float u = x;

466 float v = y;

467 x *= 10.0;

468 y *= 10.0;

469

470 float val = x + pnoise2(u * 6.0, v, 6, 1) * 3.0 +

471 pturbulence2(u * 4, v * 2, 4, 2, 2) * 1.5 + pturbulence2(u * 8, v * 8, 8, 8, 2) * 0.5;

472

473 val = fmod(val, 1.0);

474 return val < 0.0 ? 0.0 : (val > 1.0 ? 1.0 : val);

475 }

476

477 static bool spike(float x, float y)

478 {

479 x = fmod(x * 5.0, 1.0);

480 return y < (x < 0.5 ? 2.0 * x : 2.0 - 2.0 * x);

481 }

482

483 static bool circle(float x, float y, float rad)

484 {

485 x = fmod(x * 5.0, 1.0) - 0.5;

486 y = (y - 0.65) * 5.0;

487 float len = sqrt(x * x + y * y);

488 return len < rad;

489 }

490

491 static bool diamond(float x, float y)

492 {

493 return y >= (1.0 - (x < 0.5 ? 2.0 * x : 2.0 - 2.0 * x)) * 0.3333333 + 0.88;

494 }

495

496 static bool center_circle(float x, float y, float rad)

497 {

498 x = x - 0.5;

499 y = 1.0 - y;

500 return sqrt(x * x + y * y) < rad;

501 }

502

503 static bool field_pattern(float x, float y)

504 {

505 y = y < 0.5 ? y * 2.0 : 2.0 - y * 2.0;

506 bool inside = false;

507

508 inside |= (spike(x, y + 0.33333) && !spike(x, y + 0.4)) ||

509 (spike(x, y + 0.5) && !spike(x, y + 0.68));

510 inside |= (circle(x, y, 0.12) && !circle(x, y, 0.1)) || circle(x, y, 0.06);

511 inside |= (diamond(x, y) && !diamond(x, y - 0.015)) ||

512 (diamond(x, y - 0.023) && !diamond(x, y - 0.028));

513 inside |= center_circle(x, y, 0.03);

514

515 return inside;

516 }

517

518 bool Board::generate_textures()

519 {

520 // ---- board field texture ----

521 static const Vector3 wcol1 = Vector3(0.6, 0.4, 0.2);

522 static const Vector3 wcol2 = Vector3(0.53, 0.32, 0.1);

523 static const Vector3 wcol3 = Vector3(0.38, 0.25, 0.08);

524

525 img_field.create(1024, 1024);

526 unsigned char *pptr = img_field.pixels;

527 for(int i=0; i<img_field.height; i++) {

528 float v = (float)i / (float)img_field.height;

529

530 for(int j=0; j<img_field.width; j++) {

531 float u = (float)j / (float)img_field.width;

532

533 // pattern mask

534 bool inside = field_pattern(u, v);

535

536 float wood_val = wood(u, v);

537 Vector3 wood_color = lerp(wcol1, wcol2, wood_val) * 0.9;

538 if(inside) {

539 wood_color = lerp(wcol1, wcol2, 1.0 - wood_val) * 2.0;

540 }

541

542 int r = (int)(wood_color.x * 255.0);

543 int g = (int)(wood_color.y * 255.0);

544 int b = (int)(wood_color.z * 255.0);

545

546 pptr[0] = r > 255 ? 255 : r;

547 pptr[1] = g > 255 ? 255 : g;

548 pptr[2] = b > 255 ? 255 : b;

549 pptr[3] = 255;

550 pptr += 4;

551 }

552 }

553 img_field.texture();

554

555

556 // ---- slot highlighting texture ----

557 img_highlight.create(128, 256);

558 pptr = img_highlight.pixels;

559 for(int i=0; i<img_highlight.height; i++) {

560 float v = (float)i / (float)img_highlight.height;

561 for(int j=0; j<img_highlight.width; j++) {

562 float u = (float)j / (float)img_highlight.width;

563

564 bool inside = field_pattern(u / 5.0, v * 0.445);

565

566 pptr[0] = 255;

567 pptr[1] = 255;

568 pptr[2] = 255;

569 pptr[3] = inside ? 255 : 0;

570 pptr += 4;

571 }

572 }

573 img_highlight.texture();

574

575

576 // ---- generic wood texture ----

577 img_wood.create(256, 256);

578 pptr = img_wood.pixels;

579 for(int i=0; i<img_wood.height; i++) {

580 float v = (float)i / (float)img_wood.height;

581 for(int j=0; j<img_wood.width; j++) {

582 float u = (float)j / (float)img_wood.width;

583

584 float wood_val = wood_tile(u, v);

585 Vector3 wood_color = lerp(wcol2, wcol3, wood_val) * 0.7;

586

587 int r = (int)(wood_color.x * 255.0);

588 int g = (int)(wood_color.y * 255.0);

589 int b = (int)(wood_color.z * 255.0);

590

591 pptr[0] = r > 255 ? 255 : r;

592 pptr[1] = g > 255 ? 255 : g;

593 pptr[2] = b > 255 ? 255 : b;

594 pptr[3] = 255;

595 pptr += 4;

596 }

597 }

598 img_wood.texture();

599

600 // ---- metal hinge diffuse texture ----

601 Vector3 rusty_col1 = Vector3(0.43, 0.46, 0.52);

602 Vector3 rusty_col2 = Vector3(0.52, 0.47, 0.43);

603

604 img_hinge.create(128, 128);

605 pptr = img_hinge.pixels;

606 for(int i=0; i<img_hinge.height; i++) {

607 float v = (float)i / (float)img_hinge.height;

608 for(int j=0; j<img_hinge.width; j++) {

609 float u = (float)j / (float)img_hinge.width;

610

611 // rust pattern

612 float w1 = fbm2(u * 4.0, v * 4.0, 3) * 0.5 + 0.5;

613 //float w2 = fbm2(u * 8.0, v * 8.0, 1) * 0.5 + 0.5;

614 Vector3 col = lerp(rusty_col1, rusty_col2 * 0.5, w1);

615

616 // center hinge split

617 if(fabs(v - 0.5) < 0.01) {

618 col *= 0.5;

619 }

620

621 int r = (int)(col.x * 255.0);

622 int g = (int)(col.y * 255.0);

623 int b = (int)(col.z * 255.0);

624

625 pptr[0] = r > 255 ? 255 : (r < 0 ? 0 : r);

626 pptr[1] = g > 255 ? 255 : (g < 0 ? 0 : g);

627 pptr[2] = b > 255 ? 255 : (b < 0 ? 0 : b);

628 pptr[3] = 255;

629

630 pptr += 4;

631 }

632 }

633 img_hinge.texture();

634

635 return true;

636 }