| … | |
… | |
| 34 | this->h = h; |
34 | this->h = h; |
| 35 | |
35 | |
| 36 | // we store the layout in a single contiguous memory layout |
36 | // we store the layout in a single contiguous memory layout |
| 37 | // first part consists of pointers to each column, followed |
37 | // first part consists of pointers to each column, followed |
| 38 | // by the actual columns (not rows!) |
38 | // by the actual columns (not rows!) |
| 39 | int size = (sizeof (cell *) + sizeof (cell) * h) * w; |
39 | size = (sizeof (cell *) + sizeof (cell) * h) * w; |
| 40 | |
|
|
| 41 | data = (cell **)salloc<char> (size); |
40 | data = (cell **)salloc<char> (size); |
| 42 | |
41 | |
| 43 | cell *p = (cell *)(data + w); |
42 | cell *p = (cell *)(data + w); |
| 44 | |
43 | |
| 45 | for (int x = w; x--; ) |
44 | for (int x = 0; x < w; ++x) |
| 46 | data [x] = p + x * h; |
45 | data [x] = p + x * h; |
| 47 | } |
46 | } |
| 48 | |
47 | |
| 49 | layout::layout (int w, int h) |
48 | layout::layout (int w, int h) |
| 50 | { |
49 | { |
| … | |
… | |
| 56 | alloc (copy.w, copy.h); |
55 | alloc (copy.w, copy.h); |
| 57 | |
56 | |
| 58 | memcpy (data [0], copy.data [0], sizeof (cell) * h * w); |
57 | memcpy (data [0], copy.data [0], sizeof (cell) * h * w); |
| 59 | } |
58 | } |
| 60 | |
59 | |
|
|
60 | layout::layout (layout &orig, int x1, int y1, int x2, int y2) |
|
|
61 | { |
|
|
62 | w = x2 - x1; |
|
|
63 | h = y2 - y1; |
|
|
64 | |
|
|
65 | // we only allocate space for the pointers |
|
|
66 | size = sizeof (cell *) * w; |
|
|
67 | data = (cell **)salloc<char> (size); |
|
|
68 | |
|
|
69 | // and now we point back into the original layout |
|
|
70 | for (int x = 0; x < w; ++x) |
|
|
71 | data [x] = orig.data [x + x1] + y1; |
|
|
72 | } |
|
|
73 | |
| 61 | layout::~layout () |
74 | layout::~layout () |
| 62 | { |
75 | { |
| 63 | int size = (sizeof (cell *) + sizeof (cell) * h) * w; |
|
|
| 64 | |
|
|
| 65 | sfree ((char *)data, size); |
76 | sfree ((char *)data, size); |
| 66 | } |
77 | } |
| 67 | |
78 | |
| 68 | void |
79 | void |
| 69 | layout::fill (char fill) |
80 | layout::fill (char fill) |
| 70 | { |
81 | { |
| 71 | memset (data [0], fill, w * h); |
82 | //memset (data [0], fill, w * h); // only when contiguous :/ |
|
|
83 | fill_rect (0, 0, w, h, fill); |
| 72 | } |
84 | } |
| 73 | |
85 | |
| 74 | void |
86 | void |
| 75 | layout::rect (int x1, int y1, int x2, int y2, char fill) |
87 | layout::rect (int x1, int y1, int x2, int y2, char fill) |
| 76 | { |
88 | { |
| … | |
… | |
| 209 | if (x < dist.w - 1 && !dist [x + 1][y]) push_flood_fill (dist, seeds, x + 1, y); |
221 | if (x < dist.w - 1 && !dist [x + 1][y]) push_flood_fill (dist, seeds, x + 1, y); |
| 210 | } |
222 | } |
| 211 | } |
223 | } |
| 212 | |
224 | |
| 213 | static inline void |
225 | static inline void |
| 214 | make_tunnel (layout &dist, pointlist &seeds, int x, int y, U8 d) |
226 | make_tunnel (layout &dist, pointlist &seeds, int x, int y, U8 d, int perturb) |
| 215 | { |
227 | { |
| 216 | for (;;) |
228 | for (;;) |
| 217 | { |
229 | { |
| 218 | point neigh[4]; |
230 | point neigh[4]; |
| 219 | int ncnt = 0; |
231 | int ncnt = 0; |
| 220 | |
232 | |
|
|
233 | d += perturb > 1; |
|
|
234 | |
| 221 | if (x > 0 && U8 (dist [x - 1][y]) <= d && dist [x - 1][y] > 1) neigh [ncnt++] = point (x - 1, y); |
235 | if (x > 0 && U8 (dist [x - 1][y]) < d && dist [x - 1][y] > 1) neigh [ncnt++] = point (x - 1, y); |
| 222 | if (x < dist.w - 1 && U8 (dist [x + 1][y]) <= d && dist [x + 1][y] > 1) neigh [ncnt++] = point (x + 1, y); |
236 | if (x < dist.w - 1 && U8 (dist [x + 1][y]) < d && dist [x + 1][y] > 1) neigh [ncnt++] = point (x + 1, y); |
| 223 | if (y > 0 && U8 (dist [x][y - 1]) <= d && dist [x][y - 1] > 1) neigh [ncnt++] = point (x, y - 1); |
237 | if (y > 0 && U8 (dist [x][y - 1]) < d && dist [x][y - 1] > 1) neigh [ncnt++] = point (x, y - 1); |
| 224 | if (y < dist.h - 1 && U8 (dist [x][y + 1]) <= d && dist [x][y + 1] > 1) neigh [ncnt++] = point (x, y + 1); |
238 | if (y < dist.h - 1 && U8 (dist [x][y + 1]) < d && dist [x][y + 1] > 1) neigh [ncnt++] = point (x, y + 1); |
| 225 | |
239 | |
| 226 | if (!ncnt) |
240 | if (!ncnt) |
| 227 | return; |
241 | return; |
| 228 | |
242 | |
| 229 | point &p = neigh [rmg_rndm (ncnt)]; |
243 | point p = neigh [perturb ? rmg_rndm (ncnt) : 0]; |
| 230 | |
244 | |
| 231 | seeds.push (p); |
245 | seeds.push (p); |
| 232 | |
246 | |
| 233 | x = p.x; |
247 | x = p.x; |
| 234 | y = p.y; |
248 | y = p.y; |
| … | |
… | |
| 252 | } |
266 | } |
| 253 | |
267 | |
| 254 | // isolation remover, works on a "distance" map |
268 | // isolation remover, works on a "distance" map |
| 255 | // the map must be initialised with 0 == rooms, 255 = walls |
269 | // the map must be initialised with 0 == rooms, 255 = walls |
| 256 | static void noinline |
270 | static void noinline |
| 257 | isolation_remover (layout &dist) |
271 | isolation_remover (layout &dist, unsigned int perturb = 2) |
| 258 | { |
272 | { |
| 259 | // dist contains |
273 | // dist contains |
| 260 | // 0 == invisited rooms |
274 | // 0 == invisited rooms |
| 261 | // 1 == visited rooms |
275 | // 1 == visited rooms |
| 262 | // 2+ shortest distance to random near room |
276 | // 2+ shortest distance to random near room |
| 263 | |
277 | |
|
|
278 | clamp_it (perturb, 0, 2); |
|
|
279 | |
| 264 | // phase 1, find seed |
280 | // phase 1, find seed |
| 265 | int cnt = 0; |
281 | int cnt = 0; |
| 266 | int x, y; |
282 | int x, y; |
| 267 | |
283 | |
| 268 | for (int i = 0; i < dist.w; ++i) |
284 | for (int i = 0; i < dist.w; ++i) |
| … | |
… | |
| 299 | |
315 | |
| 300 | if (!dist [x][y]) |
316 | if (!dist [x][y]) |
| 301 | { |
317 | { |
| 302 | // found new isolated area, make tunnel |
318 | // found new isolated area, make tunnel |
| 303 | push_flood_fill (dist, seeds, x, y); |
319 | push_flood_fill (dist, seeds, x, y); |
| 304 | make_tunnel (dist, seeds, x, y, 255); |
320 | make_tunnel (dist, seeds, x, y, 254, perturb); |
| 305 | } |
321 | } |
| 306 | else |
322 | else |
| 307 | { |
323 | { |
| 308 | // nothing here, continue to expand |
324 | // nothing here, continue to expand |
| 309 | U8 d = U8 (dist [x][y]) + 1; |
325 | U8 d = U8 (dist [x][y]) + 1; |
| … | |
… | |
| 315 | } |
331 | } |
| 316 | } |
332 | } |
| 317 | } |
333 | } |
| 318 | |
334 | |
| 319 | void |
335 | void |
| 320 | layout::isolation_remover () |
336 | layout::isolation_remover (int perturb) |
| 321 | { |
337 | { |
| 322 | layout dist (w - 2, h - 2); // map without border |
338 | layout dist (w - 2, h - 2); // map without border |
| 323 | |
339 | |
| 324 | for (int x = 1; x < w - 1; ++x) |
340 | for (int x = 1; x < w - 1; ++x) |
| 325 | for (int y = 1; y < h - 1; ++y) |
341 | for (int y = 1; y < h - 1; ++y) |
| 326 | dist [x - 1][y - 1] = data [x][y] == '#' ? U8 (255) : 0; |
342 | dist [x - 1][y - 1] = data [x][y] == '#' ? U8 (255) : 0; |
| 327 | |
343 | |
| 328 | ::isolation_remover (dist); |
344 | ::isolation_remover (dist, perturb); |
| 329 | |
345 | |
| 330 | // now copy the tunnels over |
346 | // now copy the tunnels over |
| 331 | for (int x = 1; x < w - 1; ++x) |
347 | for (int x = 1; x < w - 1; ++x) |
| 332 | for (int y = 1; y < h - 1; ++y) |
348 | for (int y = 1; y < h - 1; ++y) |
| 333 | if (data [x][y] == '#' && dist [x - 1][y - 1] == 1) |
349 | if (data [x][y] == '#' && dist [x - 1][y - 1] == 1) |
| 334 | data [x][y] = 0; |
350 | data [x][y] = 0; |
| 335 | } |
351 | } |
| 336 | |
352 | |
| 337 | ///////////////////////////////////////////////////////////////////////////// |
353 | ///////////////////////////////////////////////////////////////////////////// |
| 338 | |
354 | |
| 339 | // inspired mostly by http://www.jimrandomh.org/misc/caves.txt |
|
|
| 340 | void |
|
|
| 341 | layout::gen_cave (int subtype) |
|
|
| 342 | { |
|
|
| 343 | switch (subtype) |
|
|
| 344 | { |
|
|
| 345 | // a rough cave |
|
|
| 346 | case 0: |
|
|
| 347 | fill_rand (rmg_rndm (85, 97)); |
|
|
| 348 | break; |
|
|
| 349 | |
|
|
| 350 | // corridors |
|
|
| 351 | case 1: |
|
|
| 352 | fill_rand (rmg_rndm (5, 40)); |
|
|
| 353 | erode_1_2 (5, 2, 10); |
|
|
| 354 | erode_1_2 (5, -1, 10); |
|
|
| 355 | erode_1_2 (5, 2, 1); |
|
|
| 356 | break; |
|
|
| 357 | |
|
|
| 358 | // somewhat open, roundish |
|
|
| 359 | case 2: |
|
|
| 360 | fill_rand (45); |
|
|
| 361 | erode_1_2 (5, 0, 5); |
|
|
| 362 | erode_1_2 (5, 1, 1); |
|
|
| 363 | break; |
|
|
| 364 | |
|
|
| 365 | // wide open, some room-like structures |
|
|
| 366 | case 3: |
|
|
| 367 | fill_rand (45); |
|
|
| 368 | erode_1_2 (5, 2, 4); |
|
|
| 369 | erode_1_2 (5, -1, 3); |
|
|
| 370 | break; |
|
|
| 371 | } |
|
|
| 372 | |
|
|
| 373 | border (); |
|
|
| 374 | isolation_remover (); |
|
|
| 375 | } |
|
|
| 376 | |
|
|
| 377 | ///////////////////////////////////////////////////////////////////////////// |
|
|
| 378 | |
|
|
| 379 | //+GPL |
355 | //+GPL |
| 380 | |
356 | |
| 381 | /* puts doors at appropriate locations in a maze. */ |
357 | /* puts doors at appropriate locations in a maze. */ |
| 382 | void |
358 | void |
| 383 | layout::doorify () |
359 | layout::doorify () |
| 384 | { |
360 | { |
| 385 | int ndoors = w * h / 60; /* reasonable number of doors. */ |
361 | int ndoors = w * h / 60; /* reasonable number of doors. */ |
| 386 | int doorlocs = 0; /* # of available doorlocations */ |
|
|
| 387 | |
362 | |
| 388 | uint16 *doorlist_x = salloc<uint16> (w * h); |
363 | fixed_stack<point> doorloc (w * h); |
| 389 | uint16 *doorlist_y = salloc<uint16> (w * h); |
|
|
| 390 | |
364 | |
| 391 | /* make a list of possible door locations */ |
365 | /* make a list of possible door locations */ |
| 392 | for (int i = 1; i < w - 1; i++) |
366 | for (int i = 1; i < w - 1; i++) |
| 393 | for (int j = 1; j < h - 1; j++) |
367 | for (int j = 1; j < h - 1; j++) |
| 394 | { |
368 | { |
| 395 | int sindex = surround_flag (*this, i, j); |
369 | int sindex = surround_flag (*this, i, j); |
| 396 | |
370 | |
| 397 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
371 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
| 398 | { |
372 | doorloc.push (point (i, j)); |
| 399 | doorlist_x [doorlocs] = i; |
|
|
| 400 | doorlist_y [doorlocs] = j; |
|
|
| 401 | doorlocs++; |
|
|
| 402 | } |
|
|
| 403 | } |
373 | } |
| 404 | |
374 | |
| 405 | while (ndoors > 0 && doorlocs > 0) |
375 | while (ndoors && doorloc.size) |
| 406 | { |
376 | { |
| 407 | int di = rmg_rndm (doorlocs); |
377 | point p = doorloc.remove (rmg_rndm (doorloc.size)); |
| 408 | int i = doorlist_x [di]; |
378 | |
| 409 | int j = doorlist_y [di]; |
|
|
| 410 | int sindex = surround_flag (*this, i, j); |
379 | int sindex = surround_flag (*this, p.x, p.y); |
| 411 | |
380 | |
| 412 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
381 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
| 413 | { |
382 | { |
| 414 | data [i][j] = 'D'; |
383 | data [p.x][p.y] = 'D'; |
| 415 | ndoors--; |
384 | --ndoors; |
| 416 | } |
385 | } |
| 417 | |
|
|
| 418 | /* reduce the size of the list */ |
|
|
| 419 | doorlocs--; |
|
|
| 420 | doorlist_x[di] = doorlist_x [doorlocs]; |
|
|
| 421 | doorlist_y[di] = doorlist_y [doorlocs]; |
|
|
| 422 | } |
386 | } |
| 423 | |
|
|
| 424 | sfree (doorlist_x, w * h); |
|
|
| 425 | sfree (doorlist_y, w * h); |
|
|
| 426 | } |
387 | } |
| 427 | |
388 | |
| 428 | /* takes a map and makes it symmetric: adjusts Xsize and |
389 | /* takes a map and makes it symmetric: adjusts Xsize and |
| 429 | * Ysize to produce a symmetric map. |
390 | * Ysize to produce a symmetric map. |
| 430 | */ |
391 | */ |
| … | |
… | |
| 799 | else |
760 | else |
| 800 | make_wall (*this, dx, dy, 1); |
761 | make_wall (*this, dx, dy, 1); |
| 801 | } |
762 | } |
| 802 | } |
763 | } |
| 803 | |
764 | |
|
|
765 | //-GPL |
|
|
766 | |
| 804 | ///////////////////////////////////////////////////////////////////////////// |
767 | ///////////////////////////////////////////////////////////////////////////// |
|
|
768 | |
|
|
769 | // inspired mostly by http://www.jimrandomh.org/misc/caves.txt |
|
|
770 | void |
|
|
771 | layout::gen_cave (int subtype) |
|
|
772 | { |
|
|
773 | switch (subtype) |
|
|
774 | { |
|
|
775 | // a rough cave |
|
|
776 | case 0: |
|
|
777 | fill_rand (rmg_rndm (85, 97)); |
|
|
778 | break; |
|
|
779 | |
|
|
780 | // corridors |
|
|
781 | case 1: |
|
|
782 | fill_rand (rmg_rndm (5, 40)); |
|
|
783 | erode_1_2 (5, 2, 10); |
|
|
784 | erode_1_2 (5, -1, 10); |
|
|
785 | erode_1_2 (5, 2, 1); |
|
|
786 | break; |
|
|
787 | |
|
|
788 | // somewhat open, some room-like structures |
|
|
789 | case 2: |
|
|
790 | fill_rand (45); |
|
|
791 | erode_1_2 (5, 2, 4); |
|
|
792 | erode_1_2 (5, -1, 3); |
|
|
793 | break; |
|
|
794 | |
|
|
795 | // wide open, roundish |
|
|
796 | case 3: |
|
|
797 | fill_rand (45); |
|
|
798 | erode_1_2 (5, 0, 5); |
|
|
799 | erode_1_2 (5, 1, 1); |
|
|
800 | break; |
|
|
801 | } |
|
|
802 | |
|
|
803 | border (); |
|
|
804 | isolation_remover (1); |
|
|
805 | } |
|
|
806 | |
|
|
807 | void |
|
|
808 | layout::gen_castle () |
|
|
809 | { |
|
|
810 | fill ('#'); |
|
|
811 | |
|
|
812 | for (int n = w * h / 30 + 1; n--; ) |
|
|
813 | { |
|
|
814 | int rw = rmg_rndm (6, 10); |
|
|
815 | int rh = rmg_rndm (6, 10); |
|
|
816 | |
|
|
817 | if (rw > w || rh > h) |
|
|
818 | continue; |
|
|
819 | |
|
|
820 | int rx = rmg_rndm (0, w - rw); |
|
|
821 | int ry = rmg_rndm (0, h - rh); |
|
|
822 | |
|
|
823 | rect (rx, ry, rx + rw, ry + rh, '#'); |
|
|
824 | fill_rect (rx + 1, ry + 1, rx + rw - 1, ry + rh - 1, 0); |
|
|
825 | } |
|
|
826 | |
|
|
827 | border (); |
|
|
828 | isolation_remover (0); |
|
|
829 | } |
|
|
830 | |
|
|
831 | static void |
|
|
832 | gen_mixed_ (layout &maze, random_map_params *RP) |
|
|
833 | { |
|
|
834 | int dir; |
|
|
835 | |
|
|
836 | if (maze.w < 20 && maze.h < 20 && !rmg_rndm (3)) |
|
|
837 | dir = 2; // stop recursion randomly |
|
|
838 | else |
|
|
839 | dir = maze.w > maze.h; |
|
|
840 | |
|
|
841 | if (dir == 0 && maze.w > 16) |
|
|
842 | { |
|
|
843 | int m = rmg_rndm (8, maze.w - 8); |
|
|
844 | |
|
|
845 | layout m1 (maze, 0, 0, m , maze.h); gen_mixed_ (m1, RP); |
|
|
846 | layout m2 (maze, m, 0, maze.w, maze.h); gen_mixed_ (m2, RP); |
|
|
847 | } |
|
|
848 | else if (dir == 1 && maze.h > 16) |
|
|
849 | { |
|
|
850 | int m = rmg_rndm (8, maze.h - 8); |
|
|
851 | |
|
|
852 | layout m1 (maze, 0, 0, maze.w, m ); gen_mixed_ (m1, RP); |
|
|
853 | layout m2 (maze, 0, m, maze.w, maze.h); gen_mixed_ (m2, RP); |
|
|
854 | } |
|
|
855 | else |
|
|
856 | { |
|
|
857 | RP->map_layout_style = rmg_rndm (NROFLAYOUTS - 2) + 1; |
|
|
858 | |
|
|
859 | if (RP->map_layout_style == LAYOUT_MULTIPLE) |
|
|
860 | ++RP->map_layout_style; |
|
|
861 | |
|
|
862 | maze.generate (RP); |
|
|
863 | } |
|
|
864 | } |
|
|
865 | |
|
|
866 | // recursive subdivision with random sublayouts |
|
|
867 | static void |
|
|
868 | gen_mixed (layout &maze, random_map_params *RP) |
|
|
869 | { |
|
|
870 | random_map_params &rp = *new random_map_params (RP); |
|
|
871 | gen_mixed_ (maze, &rp); |
|
|
872 | delete &rp; |
|
|
873 | |
|
|
874 | maze.border (); |
|
|
875 | maze.isolation_remover (0); |
|
|
876 | } |
|
|
877 | |
|
|
878 | //+GPL |
| 805 | |
879 | |
| 806 | /* function selects the maze function and gives it whatever |
880 | /* function selects the maze function and gives it whatever |
| 807 | arguments it needs. */ |
881 | arguments it needs. */ |
| 808 | void |
882 | void |
| 809 | layout::generate (random_map_params *RP) |
883 | layout::generate (random_map_params *RP) |
| … | |
… | |
| 869 | if (rmg_rndm (2)) |
943 | if (rmg_rndm (2)) |
| 870 | doorify (); |
944 | doorify (); |
| 871 | |
945 | |
| 872 | break; |
946 | break; |
| 873 | |
947 | |
|
|
948 | case LAYOUT_CASTLE: |
|
|
949 | gen_castle (); |
|
|
950 | |
|
|
951 | if (rmg_rndm (2)) |
|
|
952 | doorify (); |
|
|
953 | |
|
|
954 | break; |
|
|
955 | |
|
|
956 | case LAYOUT_MULTIPLE: |
|
|
957 | gen_mixed (*this, RP); |
|
|
958 | break; |
|
|
959 | |
| 874 | default: |
960 | default: |
| 875 | abort (); |
961 | abort (); |
| 876 | } |
962 | } |
|
|
963 | } |
| 877 | |
964 | |
| 878 | /* rotate the maze randomly */ |
965 | //-GPL |
| 879 | rotate (rmg_rndm (4)); |
|
|
| 880 | |
|
|
| 881 | symmetrize (RP->symmetry_used); |
|
|
| 882 | |
966 | |
| 883 | #if 0 |
967 | #if 0 |
| 884 | print ();//D |
968 | static void |
| 885 | #endif |
969 | gen_village (layout &maze) |
|
|
970 | { |
|
|
971 | maze.clear (); |
|
|
972 | maze.border (); |
| 886 | |
973 | |
| 887 | if (RP->expand2x) |
974 | for (int n = maze.w * maze.h / 200 + 1; n--; ) |
| 888 | expand2x (); |
975 | { |
| 889 | } |
976 | int rw = rmg_rndm (6, 10); |
|
|
977 | int rh = rmg_rndm (6, 10); |
| 890 | |
978 | |
| 891 | //-GPL |
979 | int rx = rmg_rndm (2, maze.w - rw - 2); |
|
|
980 | int ry = rmg_rndm (2, maze.h - rh - 2); |
| 892 | |
981 | |
| 893 | #if 0 |
982 | maze.rect (rx, ry, rx + rw, ry + rh, '#'); |
|
|
983 | } |
|
|
984 | |
|
|
985 | maze.border (); |
|
|
986 | maze.isolation_remover (2); |
|
|
987 | } |
|
|
988 | |
| 894 | static struct demo |
989 | static struct demo |
| 895 | { |
990 | { |
| 896 | demo () |
991 | demo () |
| 897 | { |
992 | { |
| 898 | rmg_rndm.seed (time (0)); |
993 | rmg_rndm.seed (time (0)); |
| 899 | |
994 | |
| 900 | for(int i=1;i<100;i++) |
995 | for(int i=1;i<100;i++) |
| 901 | { |
996 | { |
| 902 | layout maze (40, 25); |
997 | layout maze (40, 30); |
| 903 | maze.fill_rand (85); |
998 | gen_village (maze); |
| 904 | maze.border (); |
999 | maze.doorify (); |
| 905 | maze.isolation_remover (); |
|
|
| 906 | maze.print (); |
1000 | maze.print (); |
|
|
1001 | exit(0); |
| 907 | } |
1002 | } |
| 908 | |
1003 | |
| 909 | exit (1); |
1004 | exit (1); |
| 910 | } |
1005 | } |
| 911 | } demo; |
1006 | } demo; |
