2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2020, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure, Markus Armbruster
6 * Empire is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 * See files README, COPYING and CREDITS in the root of the source
22 * tree for related information and legal notices. It is expected
23 * that future projects/authors will amend these files as needed.
27 * fairland.c: Create a nice, new world
29 * Known contributors to this file:
32 * Markus Armbruster, 2004-2020
40 * Place the capitals on the torus in such a way so as to maximize
41 * their distances from one another. This uses the perturbation
42 * technique of calculus of variations.
44 * 2. Grow start islands ("continents")
46 * For all continents, add the first sector at the capital's location,
47 * and the second right to it. These are the capital sectors. Then
48 * add one sector to each continent in turn, obeying the minimum
49 * distance between continents, until they have the specified size.
51 * The kind of shape they grow into is determined by the "spike
52 * percentage" --- the higher the spike, the more spindly they will
53 * be. If you lower the spike, the continents will be more round.
55 * If growing fails due to lack of room, start over. If it fails too
56 * many times, give up and terminate unsuccessfully.
58 * 3. Place and grow additional islands
60 * Place and grow islands one after the other. Place the first sector
61 * randomly, pick an island size, then grow the island to that size.
63 * Growing works as for continents, except the minimum distance for
64 * additional islands applies, and growing simply stops when there is
67 * 4. Compute elevation
69 * Elevate islands one after the other.
71 * First, place the specified number of mountains randomly.
72 * Probability increases with distance to sea.
74 * Last, elevate mountains and the capitals. Pick coastal mountain
75 * elevation randomly from an interval of medium elevations reserved
76 * for them. Pick non-coastal mountain elevation randomly from an
77 * interval of high elevation reserved for them. Set capital
78 * elevation to a fixed, medium value.
80 * In between, elevate the remaining land one by one, working from
81 * mountains towards the sea, and from the elevation just below the
82 * non-coastal mountains' interval linearly down to 1, avoiding the
83 * coastal mountains' interval.
85 * This gives islands of the same size the same set of elevations,
86 * except for mountains.
88 * Elevate sea: pick a random depth from an interval that deepens with
89 * the distance to land.
93 * Sector resources are simple functions of elevation. You can alter
94 * macros OIL_MAX, IRON_MIN, GOLD_MIN, FERT_MAX, and URAN_MIN to
107 #include "prototypes.h"
112 /* The following five numbers refer to elevation under which (in the case of
113 fertility or oil) or over which (in the case of iron, gold, and uranium)
114 sectors with that elevation will contain that resource. Elevation ranges
117 /* raise FERT_MAX for more fertility */
120 /* raise OIL_MAX for more oil */
123 /* lower IRON_MIN for more iron */
126 /* lower GOLD_MIN for more gold */
129 /* lower URAN_MIN for more uranium */
132 /* do not change these 4 defines */
133 #define LANDMIN 1 /* plate altitude for normal land */
134 #define HILLMIN 34 /* plate altitude for hills */
135 #define PLATMIN 36 /* plate altitude for plateau */
136 #define HIGHMIN 98 /* plate altitude for mountains */
138 static void qprint(const char * const fmt, ...)
139 ATTRIBUTE((format (printf, 1, 2)));
142 * Program arguments and options
144 static char *program_name;
145 static int nc, sc; /* number and size of continents */
146 static int ni, is; /* number and size of islands */
147 #define DEFAULT_SPIKE 10
148 static int sp = DEFAULT_SPIKE; /* spike percentage */
149 #define DEFAULT_MOUNTAIN 0
150 static int pm = DEFAULT_MOUNTAIN; /* mountain percentage */
151 #define DEFAULT_CONTDIST 2
152 static int di = DEFAULT_CONTDIST; /* min. distance between continents */
153 #define DEFAULT_ISLDIST 1
154 static int id = DEFAULT_ISLDIST; /* ... continents and islands */
155 /* don't let the islands crash into each other.
156 1 = don't merge, 0 = merge. */
157 static int DISTINCT_ISLANDS = 1;
159 #define DEFAULT_OUTFILE_NAME "newcap_script"
160 static const char *outfile = DEFAULT_OUTFILE_NAME;
162 #define STABLE_CYCLE 4 /* stability required for perterbed capitals */
163 #define INFINITY 999 /* a number which means "BIG" */
165 /* these defines prevent infinite loops:
168 #define COAST_SEARCH_MAX 200 /* how many times do we look for a coast sector
169 when growing continents and islands */
170 #define DRIFT_BEFORE_CHECK ((WORLD_X + WORLD_Y)/2)
171 #define DRIFT_MAX ((WORLD_X + WORLD_Y)*2)
172 #define MOUNTAIN_SEARCH_MAX 1000 /* how long do we try to place mountains */
177 #define new_x(newx) (((newx) + WORLD_X) % WORLD_X)
178 #define new_y(newy) (((newy) + WORLD_Y) % WORLD_Y)
180 static int secs; /* number of sectors grown */
181 static int ctot; /* total number of continents and islands grown */
182 static int *isecs; /* array of how large each island is */
184 static int *capx, *capy; /* location of the nc capitals */
185 static int *mc, mcc; /* array and counter used for stability
186 check when perturbing */
187 static int spike; /* are we spiking? */
188 static int mind; /* the final distance between capitals that
190 static int dirx[] = { -2, -1, 1, 2, 1, -1 }; /* gyujnb */
191 static int diry[] = { 0, -1, -1, 0, 1, 1 };
193 static int **own; /* owner of the sector. -1 means water */
194 static int **elev; /* elevation of the sectors */
195 static int **sectx, **secty; /* the sectors for each continent */
196 static int **sectc; /* which sectors are on the coast? */
197 static int *vector; /* used for measuring distances */
198 static int *weight; /* used for placing mountains */
199 static int *dsea, *dmoun; /* the dist to the ocean and mountain */
200 static int fl_status; /* is anything wrong? */
201 #define STATUS_NO_ROOM 1 /* there was no room to grow */
202 #define NUMTRIES 10 /* keep trying to grow this many times */
204 static const char *numletter =
205 "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
207 static void help(char *);
208 static void usage(void);
209 static void parse_args(int argc, char *argv[]);
210 static void allocate_memory(void);
211 static void init(void);
212 static int drift(void);
213 static void grow_continents(void);
214 static void create_elevations(void);
215 static void write_sects(void);
216 static void output(void);
217 static int write_newcap_script(void);
218 static int stable(void);
219 static void elevate_land(void);
220 static void elevate_sea(void);
221 static int map_symbol(int x, int y);
222 static void set_coastal_flags(void);
224 static void print_vars(void);
225 static void fl_move(int);
226 static void grow_islands(void);
228 /* Debugging aids: */
229 void print_own_map(void);
230 void print_elev_map(void);
232 /****************************************************************************
234 ****************************************************************************/
237 main(int argc, char *argv[])
240 char *config_file = NULL;
242 unsigned rnd_seed = 0;
245 program_name = argv[0];
247 while ((opt = getopt(argc, argv, "e:hiqR:s:v")) != EOF) {
250 config_file = optarg;
253 DISTINCT_ISLANDS = 0;
259 rnd_seed = strtoul(optarg, NULL, 10);
269 printf("%s\n\n%s", version, legal);
278 rnd_seed = pick_seed();
281 if (emp_config(config_file) < 0)
285 parse_args(argc - optind, argv + optind);
290 qprint("\n #*# ...fairland rips open a rift in the datumplane... #*#\n\n");
291 qprint("seed is %u\n", rnd_seed);
295 qprint("\ntry #%d (out of %d)...\n", i + 1, NUMTRIES);
296 qprint("placing capitals...\n");
298 qprint("unstable drift\n");
299 qprint("growing continents...\n");
301 } while (fl_status && ++i < NUMTRIES);
303 fprintf(stderr, "%s: world not large enough to hold continents\n",
307 qprint("growing islands:");
309 qprint("\nelevating land...\n");
312 qprint("writing to sectors file...\n");
313 if (!write_newcap_script())
315 if (chdir(gamedir)) {
316 fprintf(stderr, "%s: can't chdir to %s (%s)\n",
317 program_name, gamedir, strerror(errno));
320 if (!ef_open(EF_SECTOR, EFF_MEM | EFF_NOTIME))
323 if (!ef_close(EF_SECTOR))
327 qprint("\n\nA script for adding all the countries can be found in \"%s\".\n",
337 puts("Creating a planet with:\n");
338 printf("%d continents\n", nc);
339 printf("continent size: %d\n", sc);
340 printf("number of islands: %d\n", ni);
341 printf("average size of islands: %d\n", is);
342 printf("spike: %d%%\n", sp);
343 printf("%d%% of land is mountain (each continent will have %d mountains)\n",
344 pm, (pm * sc) / 100);
345 printf("minimum distance between continents: %d\n", di);
346 printf("minimum distance from islands to continents: %d\n", id);
347 printf("World dimensions: %dx%d\n", WORLD_X, WORLD_Y);
351 help(char *complaint)
354 fprintf(stderr, "%s: %s\n", program_name, complaint);
355 fprintf(stderr, "Try -h for help.\n");
361 printf("Usage: %s [OPTION]... NC SC [NI] [IS] [SP] [PM] [DI] [ID]\n"
362 " -e CONFIG-FILE configuration file\n"
364 " -i islands may merge\n"
366 " -R SEED seed for random number generator\n"
367 " -s SCRIPT name of script to create (default %s)\n"
368 " -h display this help and exit\n"
369 " -v display version information and exit\n"
370 " NC number of continents\n"
371 " SC continent size\n"
372 " NI number of islands (default NC)\n"
373 " IS average island size (default SC/2)\n"
374 " SP spike percentage: 0 = round, 100 = snake (default %d)\n"
375 " PM percentage of land that is mountain (default %d)\n"
376 " DI minimum distance between continents (default %d)\n"
377 " ID minimum distance from islands to continents (default %d)\n",
378 program_name, dflt_econfig, DEFAULT_OUTFILE_NAME,
379 DEFAULT_SPIKE, DEFAULT_MOUNTAIN, DEFAULT_CONTDIST, DEFAULT_ISLDIST);
383 parse_args(int argc, char *argv[])
385 int dist_max = mapdist(0, 0, WORLD_X / 2, WORLD_Y / 2);
388 help("missing arguments");
392 help("too many arguments");
397 fprintf(stderr, "%s: number of continents must be > 0\n",
404 fprintf(stderr, "%s: size of continents must be > 1\n",
415 fprintf(stderr, "%s: number of islands must be >= 0\n",
423 fprintf(stderr, "%s: size of islands must be > 0\n",
430 if (sp < 0 || sp > 100) {
432 "%s: spike percentage must be between 0 and 100\n",
439 if (pm < 0 || pm > 100) {
441 "%s: mountain percentage must be between 0 and 100\n",
449 fprintf(stderr, "%s: distance between continents must be >= 0\n",
454 fprintf(stderr, "%s: distance between continents too large\n",
463 "%s: distance from islands to continents must be >= 0\n",
469 "%s: distance from islands to continents too large\n",
475 /****************************************************************************
476 VARIABLE INITIALIZATION
477 ****************************************************************************/
480 allocate_memory(void)
484 capx = calloc(nc, sizeof(int));
485 capy = calloc(nc, sizeof(int));
486 vector = calloc(WORLD_X + WORLD_Y, sizeof(int));
487 mc = calloc(STABLE_CYCLE, sizeof(int));
488 own = calloc(WORLD_X, sizeof(int *));
489 elev = calloc(WORLD_X, sizeof(int *));
490 for (i = 0; i < WORLD_X; ++i) {
491 own[i] = calloc(WORLD_Y, sizeof(int));
492 elev[i] = calloc(WORLD_Y, sizeof(int));
494 sectx = calloc(nc + ni, sizeof(int *));
495 secty = calloc(nc + ni, sizeof(int *));
496 sectc = calloc(nc + ni, sizeof(int *));
497 isecs = calloc(nc + ni, sizeof(int));
498 weight = calloc(MAX(sc, is * 2), sizeof(int));
499 dsea = calloc(MAX(sc, is * 2), sizeof(int));
500 dmoun = calloc(MAX(sc, is * 2), sizeof(int));
501 for (i = 0; i < nc; ++i) {
502 sectx[i] = calloc(sc, sizeof(int));
503 secty[i] = calloc(sc, sizeof(int));
504 sectc[i] = calloc(sc, sizeof(int));
506 for (i = nc; i < nc + ni; ++i) {
507 sectx[i] = calloc(is * 2, sizeof(int));
508 secty[i] = calloc(is * 2, sizeof(int));
509 sectc[i] = calloc(is * 2, sizeof(int));
517 int i, j, xx = 0, yy = 0;
522 for (i = 0; i < WORLD_X; ++i) {
523 for (j = 0; j < WORLD_Y; ++j) {
525 elev[i][j] = -INFINITY;
529 for (i = 0; i < nc; ++i) {
535 "%s: world not big enough for all the continents\n",
544 for (i = 0; i < STABLE_CYCLE; ++i)
548 /****************************************************************************
549 DRIFT THE CAPITALS UNTIL THEY ARE AS FAR AWAY FROM EACH OTHER AS POSSIBLE
550 ****************************************************************************/
552 /* How isolated is capital j?
555 iso(int j, int newx, int newy)
557 int i, md, d = WORLD_X + WORLD_Y;
559 for (i = 0; i < nc; ++i) {
562 md = mapdist(capx[i], capy[i], newx, newy);
570 /* Drift all the capitals
577 for (turns = 0; turns < DRIFT_MAX; ++turns) {
578 if (turns > DRIFT_BEFORE_CHECK && (mind = stable()))
580 for (i = 0; i < nc; ++i)
586 /* Check to see if we have stabilized--can we stop drifting the capitals?
592 int i, isod, d = 0, stab = 1;
594 for (i = 0; i < nc; ++i) {
595 isod = iso(i, capx[i], capy[i]);
599 for (i = 0; i < STABLE_CYCLE; ++i)
603 mcc = (mcc + 1) % STABLE_CYCLE;
607 /* This routine does the actual drifting
613 int i, n, newx, newy;
615 for (i = roll0(6), n = 0; n < 6; i = (i + 1) % 6, ++n) {
616 newx = new_x(capx[j] + dirx[i]);
617 newy = new_y(capy[j] + diry[i]);
618 if (iso(j, newx, newy) >= iso(j, capx[j], capy[j])) {
626 /****************************************************************************
628 ****************************************************************************/
630 /* Look for a coastal sector of continent c
638 for (i = 0; i < secs; ++i) {
640 for (j = 0; j < 6; ++j)
641 if (own[new_x(sectx[c][i] + dirx[j])][new_y(secty[c][i] + diry[j])] == -1)
646 /* Used for measuring distances
658 for (i = 1; i < n && vector[i] == vector[i - 1]; ++i) ;
661 return i > 1 || vector[0] > 0;
664 /* Test to see if we're allowed to grow there: the arguments di and id
667 try_to_grow(int c, int newx, int newy, int d)
671 for (i = 1; i <= d; ++i) {
672 for (j = 0; j < i; ++j)
677 for (j = 0; j < i; ++j) {
678 px = new_x(px + dirx[vector[j]]);
679 py = new_y(py + diry[vector[j]]);
681 if (own[px][py] != -1 &&
683 (DISTINCT_ISLANDS || own[px][py] < nc))
685 } while (next_vector(i));
687 sectx[c][secs] = newx;
688 secty[c][secs] = newy;
693 /* Move along the coast in a clockwise direction.
697 next_coast(int c, int x, int y, int *xp, int *yp)
699 int i, nx, ny, wat = 0;
707 for (i = 0; i < 12; ++i) {
708 nx = new_x(x + dirx[i % 6]);
709 ny = new_y(y + diry[i % 6]);
710 if (own[nx][ny] == -1)
712 if (wat && own[nx][ny] == c) {
720 /* Choose a sector to grow from
732 i = starti = (spike && sectc[c][secs - 1]) ? secs - 1 : roll0(secs);
737 } while (i != starti);
744 /* Grow continent c by 1 sector
748 grow_one_sector(int c)
750 int done, coast_search, try1, x, y, newx, newy, i, n, sx, sy;
752 spike = roll0(100) < sp;
753 if ((try1 = new_try(c)) == -1)
755 x = sx = sectx[c][try1];
756 y = sy = secty[c][try1];
761 for (i = roll0(6), n = 0; n < 12 && !done; i = (i + 1) % 6, ++n) {
762 newx = new_x(x + dirx[i]);
763 newy = new_y(y + diry[i]);
764 if (own[newx][newy] == -1 &&
766 (own[new_x(x+dirx[(i+5)%6])][new_y(y+diry[(i+5)%6])] == -1 &&
767 own[new_x(x+dirx[(i+1)%6])][new_y(y+diry[(i+1)%6])] == -1)))
768 if (try_to_grow(c, newx, newy, c < nc ? di : id))
772 for (i = roll0(6), n = 0; n < 6 && !done; i = (i + 1) % 6, ++n) {
773 newx = new_x(x + dirx[i]);
774 newy = new_y(y + diry[i]);
775 if (own[newx][newy] == -1)
776 if (try_to_grow(c, newx, newy, c < nc ? di : id))
779 next_coast(c, x, y, &x, &y);
781 } while (!done && coast_search < COAST_SEARCH_MAX &&
782 (secs == 1 || x != sx || y != sy));
784 fl_status |= STATUS_NO_ROOM;
788 /* Grow all the continents
791 grow_continents(void)
795 for (c = 0; c < nc; ++c) {
796 sectx[c][0] = capx[c];
797 secty[c][0] = capy[c];
798 own[sectx[c][0]][secty[c][0]] = c;
799 sectx[c][1] = new_x(capx[c] + 2);
800 secty[c][1] = capy[c];
801 own[sectx[c][1]][secty[c][1]] = c;
804 for (secs = 2; secs < sc && !fl_status; ++secs) {
805 for (c = 0; c < nc; ++c) {
810 for (c = 0; c < nc; ++c)
814 qprint("Only managed to grow %d out of %d sectors.\n", secs, sc);
818 /****************************************************************************
820 ****************************************************************************/
822 /* Choose a place to start growing an island from
825 place_island(int c, int *xp, int *yp)
828 int ssy = roll0(WORLD_Y);
829 int ssx = new_x(roll0(WORLD_X / 2) * 2 + ssy % 2);
831 if (ssx > WORLD_X - 2)
832 ssx = new_x(ssx + 2);
833 for (d = di + id; d >= id; --d) {
837 for (*yp = sy; *xp != sx || *yp != sy; *xp += 2) {
838 if (*xp >= WORLD_X) {
839 *yp = new_y(*yp + 1);
841 if (*xp == sx && *yp == sy)
844 if (own[*xp][*yp] == -1 && try_to_grow(c, *xp, *yp, d))
851 /* Grow all the islands
859 for (c = nc; c < nc + ni; ++c) {
861 if (!place_island(c, &x, &y))
863 isiz = roll(is) + roll0(is);
867 } while (secs < isiz && grow_one_sector(c));
869 qprint(" %d(%d)", c - nc + 1, secs);
875 /****************************************************************************
877 ****************************************************************************/
879 create_elevations(void)
885 /* Generic function for finding the distance to the closest sea, land, or
889 distance_to_what(int x, int y, int flag)
893 for (d = 1; d < 5; ++d) {
894 for (j = 0; j < d; ++j)
899 for (j = 0; j < d; ++j) {
900 px = new_x(px + dirx[vector[j]]);
901 py = new_y(py + diry[vector[j]]);
904 case 0: /* distance to sea */
905 if (own[px][py] == -1)
908 case 1: /* distance to land */
909 if (own[px][py] != -1)
912 case 2: /* distance to mountain */
913 if (elev[px][py] == INFINITY)
917 } while (next_vector(d));
922 #define ELEV elev[sectx[c][i]][secty[c][i]]
923 #define distance_to_sea() (sectc[c][i]?1:distance_to_what(sectx[c][i], secty[c][i], 0))
924 #define distance_to_mountain() distance_to_what(sectx[c][i], secty[c][i], 2)
926 /* Decide where the mountains go
931 int i, mountain_search, k, c, total, ns, nm, highest, where, h, newk,
934 for (c = 0; c < ctot; ++c) {
936 ns = (c < nc) ? sc : isecs[c];
937 nm = (pm * ns) / 100;
939 /* Place the mountains */
941 for (i = 0; i < ns; ++i) {
942 dsea[i] = distance_to_sea();
943 weight[i] = (total += (dsea[i] * dsea[i]));
946 for (k = nm, mountain_search = 0;
947 k && mountain_search < MOUNTAIN_SEARCH_MAX;
950 for (i = 0; i < ns; ++i)
951 if (r < weight[i] && ELEV == -INFINITY &&
953 ((!(capx[c] == sectx[c][i] &&
954 capy[c] == secty[c][i])) &&
955 (!(new_x(capx[c] + 2) == sectx[c][i] &&
956 capy[c] == secty[c][i]))))) {
963 /* Elevate land that is not mountain and not capital */
965 for (i = 0; i < ns; ++i)
966 dmoun[i] = distance_to_mountain();
967 dk = (ns - nm - ((c < nc) ? 3 : 1) > 0) ?
968 (100 * (HIGHMIN - LANDMIN)) / (ns - nm - ((c < nc) ? 3 : 1)) :
970 for (k = 100 * (HIGHMIN - 1);; k -= dk) {
973 for (i = 0; i < ns; ++i) {
974 if (ELEV != INFINITY &&
975 (c >= nc || ((!(capx[c] == sectx[c][i] &&
976 capy[c] == secty[c][i])) &&
977 (!(new_x(capx[c] + 2) == sectx[c][i] &&
978 capy[c] == secty[c][i]))))) {
979 h = 3 * (5 - dmoun[i]) + dsea[i];
989 if (newk >= HILLMIN && newk < PLATMIN)
993 elev[sectx[c][where]][secty[c][where]] = newk;
994 dsea[where] = -INFINITY;
995 dmoun[where] = INFINITY;
998 /* Elevate the mountains and capitals */
1000 for (i = 0; i < ns; ++i) {
1001 if (ELEV == INFINITY) {
1003 ELEV = HILLMIN + roll0(PLATMIN - HILLMIN);
1005 ELEV = HIGHMIN + roll0((256 - HIGHMIN) / 2) +
1006 roll0((256 - HIGHMIN) / 2);
1007 } else if (c < nc &&
1008 (((capx[c] == sectx[c][i] && capy[c] == secty[c][i])) ||
1009 ((new_x(capx[c] + 2) == sectx[c][i] &&
1010 capy[c] == secty[c][i]))))
1016 #define distance_to_land() distance_to_what(x, y, 1)
1023 for (y = 0; y < WORLD_Y; ++y) {
1024 for (x = y % 2; x < WORLD_X; x += 2) {
1025 if (elev[x][y] == -INFINITY)
1026 elev[x][y] = -roll(distance_to_land() * 20 + 27);
1031 /****************************************************************************
1033 ****************************************************************************/
1040 fert = LANDMIN - e + 40;
1041 else if (e < FERT_MAX)
1042 fert = (120 * (FERT_MAX - e)) / (FERT_MAX - LANDMIN);
1053 oil = (LANDMIN - e) * 2 + roll0(2);
1054 else if (e <= OIL_MAX)
1055 oil = (120 * (OIL_MAX - e + 1)) / (OIL_MAX - LANDMIN + 1);
1065 if (e >= IRON_MIN && e < HIGHMIN)
1066 iron = (120 * (e - IRON_MIN + 1)) / (HIGHMIN - IRON_MIN);
1076 if (e >= GOLD_MIN) {
1078 gold = (80 * (e - GOLD_MIN + 1)) / (HIGHMIN - GOLD_MIN);
1080 gold = 100 - 20 * HIGHMIN / e;
1091 if (e >= URAN_MIN && e < HIGHMIN)
1092 uran = (120 * (e - URAN_MIN + 1)) / (HIGHMIN - URAN_MIN);
1099 add_resources(struct sctstr *sct)
1101 sct->sct_fertil = set_fert(sct->sct_elev);
1102 sct->sct_oil = set_oil(sct->sct_elev);
1103 sct->sct_min = set_iron(sct->sct_elev);
1104 sct->sct_gmin = set_gold(sct->sct_elev);
1105 sct->sct_uran = set_uran(sct->sct_elev);
1108 /****************************************************************************
1109 DESIGNATE THE SECTORS
1110 ****************************************************************************/
1118 for (y = 0; y < WORLD_Y; y++) {
1119 for (x = y % 2; x < WORLD_X; x += 2) {
1120 sct = getsectp(x, y);
1122 if (total < LANDMIN) {
1123 sct->sct_type = SCT_WATER;
1124 } else if (total < HILLMIN)
1125 sct->sct_type = SCT_RURAL;
1126 else if (total < PLATMIN)
1127 sct->sct_type = SCT_MOUNT;
1128 else if (total < HIGHMIN)
1129 sct->sct_type = SCT_RURAL;
1131 sct->sct_type = SCT_MOUNT;
1132 sct->sct_elev = total;
1133 sct->sct_newtype = sct->sct_type;
1134 sct->sct_dterr = own[sct->sct_x][y] + 1;
1138 set_coastal_flags();
1141 /****************************************************************************
1142 PRINT A PICTURE OF THE MAP TO YOUR SCREEN
1143 ****************************************************************************/
1150 for (sy = -WORLD_Y / 2; sy < WORLD_Y / 2; sy++) {
1155 for (sx = -WORLD_X / 2 + y % 2; sx < WORLD_X / 2; sx += 2) {
1157 if (own[x][y] == -1)
1160 printf("%c ", map_symbol(x, y));
1168 map_symbol(int x, int y)
1172 for (c = 0; c < nc; ++c)
1173 if ((x == capx[c] && y == capy[c])
1174 || (x == new_x(capx[c] + 2) && y == capy[c]))
1175 return numletter[own[x][y] % 62];
1176 if ((elev[x][y] >= HILLMIN && elev[x][y] < PLATMIN)
1177 || elev[x][y] >= HIGHMIN)
1179 return own[x][y] >= nc ? '%' : '#';
1183 * Print a map to help visualize own[][].
1184 * This is for debugging.
1191 for (sy = -WORLD_Y / 2; sy < WORLD_Y / 2; sy++) {
1194 for (sx = -WORLD_X / 2; sx < WORLD_X / 2; sx++) {
1198 else if (own[x][y] == -1)
1201 putchar(numletter[own[x][y] % 62]);
1208 * Print a map to help visualize elev[][].
1209 * This is for debugging. It expects the terminal to understand
1210 * 24-bit color escape sequences \e[48;2;$red;$green;$blue;m.
1213 print_elev_map(void)
1215 int sx, sy, x, y, sat;
1217 for (sy = -WORLD_Y / 2; sy < WORLD_Y / 2; sy++) {
1220 for (sx = -WORLD_X / 2; sx < WORLD_X / 2; sx++) {
1224 else if (!elev[x][y])
1226 else if (elev[x][y] < 0) {
1227 sat = 256 + elev[x][y] * 2;
1228 printf("\033[48;2;%d;%d;%dm \033[0m", sat, sat, 255);
1229 } else if (elev[x][y] < HIGHMIN / 2) {
1230 sat = (HIGHMIN / 2 - elev[x][y]) * 4;
1231 printf("\033[48;2;%d;%d;%dm \033[0m", sat, 255, sat);
1232 } else if (elev[x][y] < HIGHMIN) {
1233 sat = 128 + (HIGHMIN - elev[x][y]) * 2;
1234 printf("\033[48;2;%d;%d;%dm \033[0m", sat, sat / 2, sat / 4);
1236 sat = 128 + (elev[x][y] - HIGHMIN) * 4 / 5;
1237 printf("\033[48;2;%d;%d;%dm^\033[0m", sat, sat, sat);
1244 /***************************************************************************
1245 WRITE A SCRIPT FOR PLACING CAPITALS
1246 ****************************************************************************/
1248 write_newcap_script(void)
1251 FILE *script = fopen(outfile, "w");
1254 fprintf(stderr, "%s: unable to write to %s (%s)\n",
1255 program_name, outfile, strerror(errno));
1259 for (c = 0; c < nc; ++c) {
1260 fprintf(script, "add %d %d %d p\n", c + 1, c + 1, c + 1);
1261 fprintf(script, "newcap %d %d,%d\n", c + 1, capx[c], capy[c]);
1263 fprintf(script, "add %d visitor visitor v\n", c + 1);
1269 qprint(const char *const fmt, ...)
1275 vfprintf(stdout, fmt, ap);
1281 set_coastal_flags(void)
1286 for (i = 0; i < nc; ++i) {
1287 for (j = 0; j < sc; j++) {
1288 sp = getsectp(sectx[i][j], secty[i][j]);
1289 sp->sct_coastal = sectc[i][j];
1292 for (i = nc; i < nc + ni; ++i) {
1293 for (j = 0; j < isecs[i]; j++) {
1294 sp = getsectp(sectx[i][j], secty[i][j]);
1295 sp->sct_coastal = sectc[i][j];