| … | |
… | |
| 221 | 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); |
| 222 | } |
222 | } |
| 223 | } |
223 | } |
| 224 | |
224 | |
| 225 | static inline void |
225 | static inline void |
| 226 | 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) |
| 227 | { |
227 | { |
| 228 | for (;;) |
228 | for (;;) |
| 229 | { |
229 | { |
| 230 | point neigh[4]; |
230 | point neigh[4]; |
| 231 | int ncnt = 0; |
231 | int ncnt = 0; |
| 232 | |
232 | |
|
|
233 | d += perturb > 1; |
|
|
234 | |
| 233 | 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); |
| 234 | 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); |
| 235 | 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); |
| 236 | 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); |
| 237 | |
239 | |
| 238 | if (!ncnt) |
240 | if (!ncnt) |
| 239 | return; |
241 | return; |
| 240 | |
242 | |
| 241 | point &p = neigh [rmg_rndm (ncnt)]; |
243 | point p = neigh [perturb ? rmg_rndm (ncnt) : 0]; |
| 242 | |
244 | |
| 243 | seeds.push (p); |
245 | seeds.push (p); |
| 244 | |
246 | |
| 245 | x = p.x; |
247 | x = p.x; |
| 246 | y = p.y; |
248 | y = p.y; |
| … | |
… | |
| 264 | } |
266 | } |
| 265 | |
267 | |
| 266 | // isolation remover, works on a "distance" map |
268 | // isolation remover, works on a "distance" map |
| 267 | // the map must be initialised with 0 == rooms, 255 = walls |
269 | // the map must be initialised with 0 == rooms, 255 = walls |
| 268 | static void noinline |
270 | static void noinline |
| 269 | isolation_remover (layout &dist) |
271 | isolation_remover (layout &dist, unsigned int perturb = 2) |
| 270 | { |
272 | { |
| 271 | // dist contains |
273 | // dist contains |
| 272 | // 0 == invisited rooms |
274 | // 0 == invisited rooms |
| 273 | // 1 == visited rooms |
275 | // 1 == visited rooms |
| 274 | // 2+ shortest distance to random near room |
276 | // 2+ shortest distance to random near room |
| 275 | |
277 | |
|
|
278 | clamp_it (perturb, 0, 2); |
|
|
279 | |
| 276 | // phase 1, find seed |
280 | // phase 1, find seed |
| 277 | int cnt = 0; |
281 | int cnt = 0; |
| 278 | int x, y; |
282 | int x, y; |
| 279 | |
283 | |
| 280 | for (int i = 0; i < dist.w; ++i) |
284 | for (int i = 0; i < dist.w; ++i) |
| … | |
… | |
| 311 | |
315 | |
| 312 | if (!dist [x][y]) |
316 | if (!dist [x][y]) |
| 313 | { |
317 | { |
| 314 | // found new isolated area, make tunnel |
318 | // found new isolated area, make tunnel |
| 315 | push_flood_fill (dist, seeds, x, y); |
319 | push_flood_fill (dist, seeds, x, y); |
| 316 | make_tunnel (dist, seeds, x, y, 255); |
320 | make_tunnel (dist, seeds, x, y, 254, perturb); |
| 317 | } |
321 | } |
| 318 | else |
322 | else |
| 319 | { |
323 | { |
| 320 | // nothing here, continue to expand |
324 | // nothing here, continue to expand |
| 321 | U8 d = U8 (dist [x][y]) + 1; |
325 | U8 d = U8 (dist [x][y]) + 1; |
| … | |
… | |
| 327 | } |
331 | } |
| 328 | } |
332 | } |
| 329 | } |
333 | } |
| 330 | |
334 | |
| 331 | void |
335 | void |
| 332 | layout::isolation_remover () |
336 | layout::isolation_remover (int perturb) |
| 333 | { |
337 | { |
| 334 | layout dist (w - 2, h - 2); // map without border |
338 | layout dist (w - 2, h - 2); // map without border |
| 335 | |
339 | |
| 336 | for (int x = 1; x < w - 1; ++x) |
340 | for (int x = 1; x < w - 1; ++x) |
| 337 | for (int y = 1; y < h - 1; ++y) |
341 | for (int y = 1; y < h - 1; ++y) |
| 338 | dist [x - 1][y - 1] = data [x][y] == '#' ? U8 (255) : 0; |
342 | dist [x - 1][y - 1] = data [x][y] == '#' ? U8 (255) : 0; |
| 339 | |
343 | |
| 340 | ::isolation_remover (dist); |
344 | ::isolation_remover (dist, perturb); |
| 341 | |
345 | |
| 342 | // now copy the tunnels over |
346 | // now copy the tunnels over |
| 343 | for (int x = 1; x < w - 1; ++x) |
347 | for (int x = 1; x < w - 1; ++x) |
| 344 | for (int y = 1; y < h - 1; ++y) |
348 | for (int y = 1; y < h - 1; ++y) |
| 345 | if (data [x][y] == '#' && dist [x - 1][y - 1] == 1) |
349 | if (data [x][y] == '#' && dist [x - 1][y - 1] == 1) |
| … | |
… | |
| 353 | /* puts doors at appropriate locations in a maze. */ |
357 | /* puts doors at appropriate locations in a maze. */ |
| 354 | void |
358 | void |
| 355 | layout::doorify () |
359 | layout::doorify () |
| 356 | { |
360 | { |
| 357 | int ndoors = w * h / 60; /* reasonable number of doors. */ |
361 | int ndoors = w * h / 60; /* reasonable number of doors. */ |
| 358 | int doorlocs = 0; /* # of available doorlocations */ |
|
|
| 359 | |
362 | |
| 360 | uint16 *doorlist_x = salloc<uint16> (w * h); |
363 | fixed_stack<point> doorloc (w * h); |
| 361 | uint16 *doorlist_y = salloc<uint16> (w * h); |
|
|
| 362 | |
364 | |
| 363 | /* make a list of possible door locations */ |
365 | /* make a list of possible door locations */ |
| 364 | for (int i = 1; i < w - 1; i++) |
366 | for (int i = 1; i < w - 1; i++) |
| 365 | for (int j = 1; j < h - 1; j++) |
367 | for (int j = 1; j < h - 1; j++) |
| 366 | { |
368 | { |
| 367 | int sindex = surround_flag (*this, i, j); |
369 | int sindex = surround_flag (*this, i, j); |
| 368 | |
370 | |
| 369 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
371 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
| 370 | { |
372 | doorloc.push (point (i, j)); |
| 371 | doorlist_x [doorlocs] = i; |
|
|
| 372 | doorlist_y [doorlocs] = j; |
|
|
| 373 | doorlocs++; |
|
|
| 374 | } |
|
|
| 375 | } |
373 | } |
| 376 | |
374 | |
| 377 | while (ndoors > 0 && doorlocs > 0) |
375 | while (ndoors && doorloc.size) |
| 378 | { |
376 | { |
| 379 | int di = rmg_rndm (doorlocs); |
377 | point p = doorloc.remove (rmg_rndm (doorloc.size)); |
| 380 | int i = doorlist_x [di]; |
378 | |
| 381 | int j = doorlist_y [di]; |
|
|
| 382 | int sindex = surround_flag (*this, i, j); |
379 | int sindex = surround_flag (*this, p.x, p.y); |
| 383 | |
380 | |
| 384 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
381 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
| 385 | { |
382 | { |
| 386 | data [i][j] = 'D'; |
383 | data [p.x][p.y] = 'D'; |
| 387 | ndoors--; |
384 | --ndoors; |
| 388 | } |
385 | } |
| 389 | |
|
|
| 390 | /* reduce the size of the list */ |
|
|
| 391 | doorlocs--; |
|
|
| 392 | doorlist_x[di] = doorlist_x [doorlocs]; |
|
|
| 393 | doorlist_y[di] = doorlist_y [doorlocs]; |
|
|
| 394 | } |
386 | } |
| 395 | |
|
|
| 396 | sfree (doorlist_x, w * h); |
|
|
| 397 | sfree (doorlist_y, w * h); |
|
|
| 398 | } |
387 | } |
| 399 | |
388 | |
| 400 | /* takes a map and makes it symmetric: adjusts Xsize and |
389 | /* takes a map and makes it symmetric: adjusts Xsize and |
| 401 | * Ysize to produce a symmetric map. |
390 | * Ysize to produce a symmetric map. |
| 402 | */ |
391 | */ |
| … | |
… | |
| 771 | else |
760 | else |
| 772 | make_wall (*this, dx, dy, 1); |
761 | make_wall (*this, dx, dy, 1); |
| 773 | } |
762 | } |
| 774 | } |
763 | } |
| 775 | |
764 | |
|
|
765 | //-GPL |
|
|
766 | |
| 776 | ///////////////////////////////////////////////////////////////////////////// |
767 | ///////////////////////////////////////////////////////////////////////////// |
| 777 | |
768 | |
| 778 | // inspired mostly by http://www.jimrandomh.org/misc/caves.txt |
769 | // inspired mostly by http://www.jimrandomh.org/misc/caves.txt |
| 779 | void |
770 | void |
| 780 | layout::gen_cave (int subtype) |
771 | layout::gen_cave (int subtype) |
| … | |
… | |
| 792 | erode_1_2 (5, 2, 10); |
783 | erode_1_2 (5, 2, 10); |
| 793 | erode_1_2 (5, -1, 10); |
784 | erode_1_2 (5, -1, 10); |
| 794 | erode_1_2 (5, 2, 1); |
785 | erode_1_2 (5, 2, 1); |
| 795 | break; |
786 | break; |
| 796 | |
787 | |
| 797 | // somewhat open, roundish |
788 | // somewhat open, some room-like structures |
| 798 | case 2: |
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: |
| 799 | fill_rand (45); |
797 | fill_rand (45); |
| 800 | erode_1_2 (5, 0, 5); |
798 | erode_1_2 (5, 0, 5); |
| 801 | erode_1_2 (5, 1, 1); |
799 | erode_1_2 (5, 1, 1); |
| 802 | break; |
800 | break; |
| 803 | |
|
|
| 804 | // wide open, some room-like structures |
|
|
| 805 | case 3: |
|
|
| 806 | fill_rand (45); |
|
|
| 807 | erode_1_2 (5, 2, 4); |
|
|
| 808 | erode_1_2 (5, -1, 3); |
|
|
| 809 | break; |
|
|
| 810 | } |
801 | } |
| 811 | |
802 | |
| 812 | border (); |
803 | border (); |
| 813 | isolation_remover (); |
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); |
| 814 | } |
829 | } |
| 815 | |
830 | |
| 816 | static void |
831 | static void |
| 817 | gen_mixed_ (layout &maze, random_map_params *RP, int dir) |
832 | gen_mixed_ (layout &maze, random_map_params *RP) |
| 818 | { |
833 | { |
|
|
834 | int dir; |
|
|
835 | |
| 819 | if (maze.w < 20 && maze.h < 20 && !rmg_rndm (3)) |
836 | if (maze.w < 20 && maze.h < 20 && !rmg_rndm (3)) |
| 820 | dir = 2; // stop recursion randomly |
837 | dir = 2; // stop recursion randomly |
|
|
838 | else |
|
|
839 | dir = maze.w > maze.h; |
| 821 | |
840 | |
| 822 | if (dir == 0 && maze.w > 16) |
841 | if (dir == 0 && maze.w > 16) |
| 823 | { |
842 | { |
| 824 | int m = rmg_rndm (8, maze.w - 8); |
843 | int m = rmg_rndm (8, maze.w - 8); |
| 825 | |
844 | |
| 826 | layout m1 (maze, 0, 0, m , maze.h); gen_mixed_ (m1, RP, !dir); |
845 | layout m1 (maze, 0, 0, m , maze.h); gen_mixed_ (m1, RP); |
| 827 | layout m2 (maze, m, 0, maze.w, maze.h); gen_mixed_ (m2, RP, !dir); |
846 | layout m2 (maze, m, 0, maze.w, maze.h); gen_mixed_ (m2, RP); |
| 828 | } |
847 | } |
| 829 | else if (dir == 1 && maze.h > 16) |
848 | else if (dir == 1 && maze.h > 16) |
| 830 | { |
849 | { |
| 831 | int m = rmg_rndm (8, maze.h - 8); |
850 | int m = rmg_rndm (8, maze.h - 8); |
| 832 | |
851 | |
| 833 | layout m1 (maze, 0, 0, maze.w, m ); gen_mixed_ (m1, RP, !dir); |
852 | layout m1 (maze, 0, 0, maze.w, m ); gen_mixed_ (m1, RP); |
| 834 | layout m2 (maze, 0, m, maze.w, maze.h); gen_mixed_ (m2, RP, !dir); |
853 | layout m2 (maze, 0, m, maze.w, maze.h); gen_mixed_ (m2, RP); |
| 835 | } |
854 | } |
| 836 | else |
855 | else |
| 837 | { |
856 | { |
| 838 | RP->map_layout_style = rmg_rndm (NROFLAYOUTS - 2) + 1; |
857 | RP->map_layout_style = rmg_rndm (NROFLAYOUTS - 2) + 1; |
| 839 | |
858 | |
| … | |
… | |
| 847 | // recursive subdivision with random sublayouts |
866 | // recursive subdivision with random sublayouts |
| 848 | static void |
867 | static void |
| 849 | gen_mixed (layout &maze, random_map_params *RP) |
868 | gen_mixed (layout &maze, random_map_params *RP) |
| 850 | { |
869 | { |
| 851 | random_map_params &rp = *new random_map_params (RP); |
870 | random_map_params &rp = *new random_map_params (RP); |
| 852 | gen_mixed_ (maze, &rp, rmg_rndm (2)); |
871 | gen_mixed_ (maze, &rp); |
| 853 | delete &rp; |
872 | delete &rp; |
| 854 | |
873 | |
| 855 | maze.border (); |
874 | maze.border (); |
| 856 | maze.isolation_remover (); |
875 | maze.isolation_remover (0); |
| 857 | } |
876 | } |
|
|
877 | |
|
|
878 | //+GPL |
| 858 | |
879 | |
| 859 | /* function selects the maze function and gives it whatever |
880 | /* function selects the maze function and gives it whatever |
| 860 | arguments it needs. */ |
881 | arguments it needs. */ |
| 861 | void |
882 | void |
| 862 | layout::generate (random_map_params *RP) |
883 | layout::generate (random_map_params *RP) |
| … | |
… | |
| 922 | if (rmg_rndm (2)) |
943 | if (rmg_rndm (2)) |
| 923 | doorify (); |
944 | doorify (); |
| 924 | |
945 | |
| 925 | break; |
946 | break; |
| 926 | |
947 | |
|
|
948 | case LAYOUT_CASTLE: |
|
|
949 | gen_castle (); |
|
|
950 | |
|
|
951 | if (rmg_rndm (2)) |
|
|
952 | doorify (); |
|
|
953 | |
|
|
954 | break; |
|
|
955 | |
| 927 | case LAYOUT_MULTIPLE: |
956 | case LAYOUT_MULTIPLE: |
| 928 | gen_mixed (*this, RP); |
957 | gen_mixed (*this, RP); |
| 929 | break; |
958 | break; |
| 930 | |
959 | |
| 931 | default: |
960 | default: |
| … | |
… | |
| 934 | } |
963 | } |
| 935 | |
964 | |
| 936 | //-GPL |
965 | //-GPL |
| 937 | |
966 | |
| 938 | #if 0 |
967 | #if 0 |
|
|
968 | static void |
|
|
969 | gen_village (layout &maze) |
|
|
970 | { |
|
|
971 | maze.clear (); |
|
|
972 | maze.border (); |
|
|
973 | |
|
|
974 | for (int n = maze.w * maze.h / 200 + 1; n--; ) |
|
|
975 | { |
|
|
976 | int rw = rmg_rndm (6, 10); |
|
|
977 | int rh = rmg_rndm (6, 10); |
|
|
978 | |
|
|
979 | int rx = rmg_rndm (2, maze.w - rw - 2); |
|
|
980 | int ry = rmg_rndm (2, maze.h - rh - 2); |
|
|
981 | |
|
|
982 | maze.rect (rx, ry, rx + rw, ry + rh, '#'); |
|
|
983 | } |
|
|
984 | |
|
|
985 | maze.border (); |
|
|
986 | maze.isolation_remover (2); |
|
|
987 | } |
|
|
988 | |
| 939 | static struct demo |
989 | static struct demo |
| 940 | { |
990 | { |
| 941 | demo () |
991 | demo () |
| 942 | { |
992 | { |
| 943 | rmg_rndm.seed (time (0)); |
993 | rmg_rndm.seed (time (0)); |
| 944 | |
994 | |
| 945 | for(int i=1;i<100;i++) |
995 | for(int i=1;i<100;i++) |
| 946 | { |
996 | { |
| 947 | layout maze (40, 25); |
997 | layout maze (40, 30); |
| 948 | maze.fill_rand (85); |
998 | gen_village (maze); |
| 949 | maze.border (); |
999 | maze.doorify (); |
| 950 | maze.isolation_remover (); |
|
|
| 951 | maze.print (); |
1000 | maze.print (); |
|
|
1001 | exit(0); |
| 952 | } |
1002 | } |
| 953 | |
1003 | |
| 954 | exit (1); |
1004 | exit (1); |
| 955 | } |
1005 | } |
| 956 | } demo; |
1006 | } demo; |
