/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Copyright (C) 1986-2010, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* This program is free software; you can redistribute it and/or modify
*
* ---
*
- * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
- * related information and legal notices. It is expected that any future
- * projects/authors will amend these files as needed.
+ * See files README, COPYING and CREDITS in the root of the source
+ * tree for related information and legal notices. It is expected
+ * that future projects/authors will amend these files as needed.
*
* ---
*
* fairland.c: Create a nice, new world
- *
+ *
* Known contributors to this file:
* Ken Stevens, 1995
* Steve McClure, 1998
*/
+#include <config.h>
+
/* define ORE 1 to add resources, define ORE 0 if you want to use another
program to add the resources */
static int ORE = 1;
/* lower URAN_MIN for more uranium */
#define URAN_MIN 56
-#if defined(aix) || defined(linux) || defined(solaris)
-#include <unistd.h>
-#endif /* aix or linux */
-
+#include <errno.h>
+#include <stdarg.h>
#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include "var.h"
+#include <unistd.h>
+#include "file.h"
#include "misc.h"
-#include "power.h"
#include "nat.h"
-#include "sect.h"
-#include "gamesdef.h"
-#include "file.h"
-#include "xy.h"
#include "optlist.h"
+#include "power.h"
#include "prototypes.h"
+#include "sect.h"
+#include "version.h"
+#include "xy.h"
/* do not change these 4 defines */
#define LANDMIN 1 /* plate altitude for normal land */
#define PLATMIN 36 /* plate altitude for plateau */
#define HIGHMIN 98 /* plate altitude for mountains */
-static void qprint(const char *str);
+static void qprint(const char * const fmt, ...)
+ ATTRIBUTE((format (printf, 1, 2)));
-static const char *outfile = "newcap_script";
+#define DEFAULT_OUTFILE_NAME "newcap_script"
+static const char *outfile = DEFAULT_OUTFILE_NAME;
/* mark the continents with a * so you can tell them
from the islands 1 = mark, 0 = don't mark. */
static int AIRPORT_MARKER = 0;
1 = don't merge, 0 = merge. */
static int DISTINCT_ISLANDS = 1;
-#define XSIZE ((WORLD_X) / 2) /* basically world x-y size */
-#define YSIZE (WORLD_Y)
+static char *program_name;
+
#define STABLE_CYCLE 4 /* stability required for perterbed capitals */
#define INFINITY 999 /* a number which means "BIG" */
#define new_x(newx) (((newx) + WORLD_X) % WORLD_X)
#define new_y(newy) (((newy) + WORLD_Y) % WORLD_Y)
-#if !defined(_WIN32)
-#define max(a,b) (a>b?a:b)
-#endif
#define rnd(x) (random() % (x))
-int secs; /* number of sectors grown */
-int ctot; /* total number of continents and islands grown */
-int *isecs; /* array of how large each island is */
+static int secs; /* number of sectors grown */
+static int ctot; /* total number of continents and islands grown */
+static int *isecs; /* array of how large each island is */
-int nc, sc, di, sp, pm, ni, is, id; /* the 8 arguments to this program */
-unsigned long rnd_seed; /* optional seed can be passed as an argument */
-int *capx, *capy; /* location of the nc capitals */
-int *mc, mcc; /* array and counter used for stability
+static int nc, sc, di, sp, pm, ni, is, id; /* the 8 args to this program */
+static unsigned long rnd_seed; /* optional seed argument */
+static int *capx, *capy; /* location of the nc capitals */
+static int *mc, mcc; /* array and counter used for stability
check when perturbing */
-int spike; /* are we spiking? */
-int mind; /* the final distance between capitals that
+static int spike; /* are we spiking? */
+static int mind; /* the final distance between capitals that
we achieved */
-int dirx[] = { -2, -1, 1, 2, 1, -1 }; /* gyujnb */
-int diry[] = { 0, -1, -1, 0, 1, 1 };
-
-int **own; /* owner of the sector. -1 means water */
-int **elev; /* elevation of the sectors */
-int **sectx, **secty; /* the sectors for each continent */
-int **sectc; /* which sectors are on the coast? */
-int *vector; /* used for measuring distances */
-int *weight; /* used for placing mountains */
-int *dsea, *dmoun; /* the dist to the ocean and mountain */
-int the_file; /* the file we write everything to */
-struct sctstr **sects;
-struct sctstr *sectsbuf;
-int fl_status; /* is anything wrong? */
-#define STATUS_NO_ROOM (1) /* there was no room to grow */
+static int dirx[] = { -2, -1, 1, 2, 1, -1 }; /* gyujnb */
+static int diry[] = { 0, -1, -1, 0, 1, 1 };
+
+static int **own; /* owner of the sector. -1 means water */
+static int **elev; /* elevation of the sectors */
+static int **sectx, **secty; /* the sectors for each continent */
+static int **sectc; /* which sectors are on the coast? */
+static int *vector; /* used for measuring distances */
+static int *weight; /* used for placing mountains */
+static int *dsea, *dmoun; /* the dist to the ocean and mountain */
+static int fl_status; /* is anything wrong? */
+#define STATUS_NO_ROOM 1 /* there was no room to grow */
#define NUMTRIES 10 /* keep trying to grow this many times */
-const char *numletter =
+static const char *numletter =
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+static void help(char *);
+static void usage(void);
static void parse_args(int argc, char *argv[]);
static int allocate_memory(void);
static void init(void);
static void grow_continents(void);
static void create_elevations(void);
static void write_sects(void);
-static int write_file(void);
static void output(void);
static int write_newcap_script(void);
static int stable(void);
static void elevate_land(void);
static void elevate_sea(void);
-static void translate_continents(void);
static int map_symbol(int x, int y);
-static void fl_sct_init(coord x, coord y, s_char *ptr);
+static void set_coastal_flags(void);
static void print_vars(void);
static void fl_move(int);
main(int argc, char *argv[])
{
int opt;
- extern int optind;
- extern char *optarg;
char *config_file = NULL;
- char tbuf[512];
int i = 0;
+ program_name = argv[0];
rnd_seed = time(NULL);
-#if !defined(_WIN32)
- rnd_seed += getpid();
- while ((opt = getopt(argc, argv, "ae:ioqs:R:")) != EOF) {
+ while ((opt = getopt(argc, argv, "ae:hioqR:s:v")) != EOF) {
switch (opt) {
case 'a':
AIRPORT_MARKER = 1;
break;
- case 'i':
- DISTINCT_ISLANDS = 0;
- break;
case 'e':
config_file = optarg;
break;
+ case 'i':
+ DISTINCT_ISLANDS = 0;
+ break;
case 'o':
ORE = 0;
break;
case 'q':
quiet = 1;
break;
- case 's':
- outfile = optarg;
- break;
case 'R':
rnd_seed = strtoul(optarg, NULL, 10);
break;
+ case 's':
+ outfile = optarg;
+ break;
+ case 'h':
+ usage();
+ exit(0);
+ case 'v':
+ printf("%s\n\n%s", version, legal);
+ exit(0);
+ default:
+ help(NULL);
+ exit(1);
}
}
-#endif
+ parse_args(argc - optind, argv + optind);
+
srandom(rnd_seed);
- if (config_file == NULL) {
- sprintf(tbuf, "%s/econfig", datadir);
- config_file = tbuf;
- }
- emp_config(config_file);
+ empfile_init();
+ if (emp_config(config_file) < 0)
+ exit(1);
+ empfile_fixup();
-#if !defined(_WIN32)
- parse_args(argc - optind, argv + optind);
-#else
- parse_args(argc - 1, argv + 1);
-#endif
if (allocate_memory() == -1)
exit(-1);
print_vars();
do {
init();
- if (!quiet && i)
- printf("\ntry #%d (out of %d)...", i + 1, NUMTRIES);
+ if (i)
+ qprint("\ntry #%d (out of %d)...", i + 1, NUMTRIES);
qprint("\n\n #*# ...fairland rips open a rift in the datumplane... #*#\n\n");
- if (!quiet)
- printf("seed is %lu\n", rnd_seed);
+ qprint("seed is %lu\n", rnd_seed);
qprint("placing capitals...\n");
if (!drift())
qprint("fairland: unstable drift -- try increasisg DRIFT_MAX\n");
qprint("designating sectors...\n");
if (ORE)
qprint("adding resources...\n");
+ write_newcap_script();
+
+ if (chdir(gamedir)) {
+ fprintf(stderr, "Can't chdir to %s (%s)\n", gamedir, strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+ if (!ef_open(EF_SECTOR, EFF_MEM | EFF_NOTIME, WORLD_SZ())) {
+ perror("ef_open");
+ exit(1);
+ }
write_sects();
qprint("writing to sectors file...\n");
- if (write_file() == -1)
+ if (!ef_close(EF_SECTOR))
exit(-1);
+
output();
- write_newcap_script();
- if (!ORE && !quiet)
- printf("\t*** Resources have not been added ***\n");
+ qprint("\n\nA script for adding all the countries can be found in \"%s\".\n",
+ outfile);
+ if (!ORE)
+ qprint("\t*** Resources have not been added ***\n");
exit(0);
}
PARSE COMMAND LINE ARGUMENTS
****************************************************************************/
+static void
+help(char *complaint)
+{
+ if (complaint)
+ fprintf(stderr, "%s: %s\n", program_name, complaint);
+ fprintf(stderr, "Try -h for help.\n");
+}
+
+static void
+usage(void)
+{
+ printf("Usage: %s [OPTION]... NC SC [NI] [IS] [SP] [PM] [DI] [ID]\n"
+ " -a airport marker for continents\n"
+ " -e CONFIG-FILE configuration file\n"
+ " (default %s)\n"
+ " -h display this help and exit\n"
+ " -i islands may merge\n"
+ " -o don't set resources\n"
+ " -q quiet\n"
+ " -R SEED seed for random number generator\n"
+ " -s SCRIPT name of script to create (default %s)\n"
+ " NC number of continents\n"
+ " SC continent size\n"
+ " NI number of islands (default NC)\n"
+ " IS average island size (default SC/2)\n"
+ " SP spike percentage: 0 = round, 100 = snake (default %d)\n"
+ " PM percentage of land that is mountain (default %d)\n"
+ " DI minimum distance between continents (default %d)\n"
+ " ID minimum distance from islands to continents (default %d)\n",
+ program_name, dflt_econfig, DEFAULT_OUTFILE_NAME,
+ DEFAULT_SPIKE, DEFAULT_MOUNTAIN, DEFAULT_CONTDIST, DEFAULT_ISLDIST);
+}
+
static void
parse_args(int argc, char *argv[])
{
- if (argc < 2 || argc > 8) {
- puts("fairland syntax:\n");
- puts("fairland [-e config] [-aiqo] [-s script] [-R seed] <nc> <sc> [<ni>] [<is>] [<sp>] [<pm>] [<di>] [<id>]");
- puts("-q = quiet, -o = no ore produced");
- puts("-a = Airport marker for continents, -i = islands not distinct");
- puts("-R = seed to use for random, -e = read config file");
- printf("-s = name of script (default %s)\n",
- outfile);
- puts("nc = number of continents [MANDATORY]");
- puts("sc = continent size [MANDATORY]");
- puts("ni = number of islands (default = nc)");
- puts("is = average size of islands (default = sc/2)");
- printf("sp = spike percentage: 0 = round, 100 = snake (default = %d)\n",
- DEFAULT_SPIKE);
- printf("pm = the percentage of land that is mountain (default = %d)\n",
- DEFAULT_MOUNTAIN);
- printf("di = the minimum distance between continents (default = %d)\n",
- DEFAULT_CONTDIST);
- printf("id = minimum distance from islands to continents (default = %d)\n",
- DEFAULT_ISLDIST);
+ if (argc < 2) {
+ help("missing arguments");
+ exit(1);
+ }
+ if (argc > 8) {
+ help("too many arguments");
exit(1);
}
nc = atoi(argv[0]);
{
int i;
-#if !defined(_WIN32)
- the_file =
- open(empfile[EF_SECTOR].file, O_RDWR | O_CREAT | O_TRUNC, 0660);
-#else
- the_file =
- open(empfile[EF_SECTOR].file,
- O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0660);
-#endif
- if (the_file < 0) {
- perror(empfile[EF_SECTOR].file);
- return -1;
- }
- sectsbuf =
- (struct sctstr *)calloc((YSIZE * XSIZE), sizeof(struct sctstr));
- sects = (struct sctstr **)calloc(YSIZE, sizeof(struct sctstr *));
- for (i = 0; i < YSIZE; i++)
- sects[i] = §sbuf[XSIZE * i];
- capx = (int *)calloc(nc, sizeof(int));
- capy = (int *)calloc(nc, sizeof(int));
- vector = (int *)calloc(WORLD_X + WORLD_Y, sizeof(int));
- mc = (int *)calloc(STABLE_CYCLE, sizeof(int));
- own = (int **)calloc(WORLD_X, sizeof(int *));
- elev = (int **)calloc(WORLD_X, sizeof(int *));
+ capx = calloc(nc, sizeof(int));
+ capy = calloc(nc, sizeof(int));
+ vector = calloc(WORLD_X + WORLD_Y, sizeof(int));
+ mc = calloc(STABLE_CYCLE, sizeof(int));
+ own = calloc(WORLD_X, sizeof(int *));
+ elev = calloc(WORLD_X, sizeof(int *));
for (i = 0; i < WORLD_X; ++i) {
- own[i] = (int *)calloc(WORLD_Y, sizeof(int));
- elev[i] = (int *)calloc(WORLD_Y, sizeof(int));
+ own[i] = calloc(WORLD_Y, sizeof(int));
+ elev[i] = calloc(WORLD_Y, sizeof(int));
}
- sectx = (int **)calloc(nc + ni, sizeof(int *));
- secty = (int **)calloc(nc + ni, sizeof(int *));
- sectc = (int **)calloc(nc + ni, sizeof(int *));
- isecs = (int *)calloc(nc + ni, sizeof(int));
- weight = (int *)calloc(max(sc, is * 2), sizeof(int));
- dsea = (int *)calloc(max(sc, is * 2), sizeof(int));
- dmoun = (int *)calloc(max(sc, is * 2), sizeof(int));
+ sectx = calloc(nc + ni, sizeof(int *));
+ secty = calloc(nc + ni, sizeof(int *));
+ sectc = calloc(nc + ni, sizeof(int *));
+ isecs = calloc(nc + ni, sizeof(int));
+ weight = calloc(MAX(sc, is * 2), sizeof(int));
+ dsea = calloc(MAX(sc, is * 2), sizeof(int));
+ dmoun = calloc(MAX(sc, is * 2), sizeof(int));
for (i = 0; i < nc; ++i) {
- sectx[i] = (int *)calloc(sc, sizeof(int));
- secty[i] = (int *)calloc(sc, sizeof(int));
- sectc[i] = (int *)calloc(sc, sizeof(int));
+ sectx[i] = calloc(sc, sizeof(int));
+ secty[i] = calloc(sc, sizeof(int));
+ sectc[i] = calloc(sc, sizeof(int));
}
for (i = nc; i < nc + ni; ++i) {
- sectx[i] = (int *)calloc(is * 2, sizeof(int));
- secty[i] = (int *)calloc(is * 2, sizeof(int));
- sectc[i] = (int *)calloc(is * 2, sizeof(int));
+ sectx[i] = calloc(is * 2, sizeof(int));
+ secty[i] = calloc(is * 2, sizeof(int));
+ sectc[i] = calloc(is * 2, sizeof(int));
}
return 0;
}
}
- for (i = 0; i < nc; ++i, xx += 2) {
+ for (i = 0; i < nc; ++i) {
if (xx >= WORLD_X) {
++yy;
xx = yy % 2;
}
capx[i] = xx;
capy[i] = yy;
+ xx += 2;
}
for (i = 0; i < STABLE_CYCLE; ++i)
mc[i] = i;
} while (!done && coast_search < COAST_SEARCH_MAX &&
(secs == 1 || x != sx || y != sy));
if (!done && c < nc) {
- if (!quiet)
- printf("fairland: error -- continent %c had no room to grow!\n",
- numletter[c % 62]);
+ qprint("fairland: error -- continent %c had no room to grow!\n",
+ numletter[c % 62]);
fl_status |= STATUS_NO_ROOM;
}
return done;
grow_one_sector(c);
}
}
- if (fl_status && !quiet)
- printf("Only managed to grow %d out of %d sectors.\n", secs, sc);
+ for (c = 0; c < nc; ++c)
+ find_coast(c);
+
+ if (fl_status)
+ qprint("Only managed to grow %d out of %d sectors.\n", secs, sc);
ctot = nc;
}
for (*yp = sy; *xp != sx || *yp != sy; *xp += 2) {
if (*xp >= WORLD_X) {
*yp = new_y(*yp + 1);
- *xp = (*yp) % 2;
+ *xp = *yp % 2;
if (*xp == sx && *yp == sy)
break;
}
secs = 0;
if (!place_island(c, &x, &y))
return;
- isiz = 1 + rnd(2 * is - 1);
+ isiz = 1 + rnd(is) + rnd(is);
do {
++secs;
find_coast(c);
} while (secs < isiz && grow_one_sector(c));
- if (quiet == 0)
- printf(" %d(%d)", c - nc + 1, secs);
+ find_coast(c);
+ qprint(" %d(%d)", c - nc + 1, secs);
isecs[c] = secs;
- ctot = c;
+ ctot++;
}
}
if (e < LANDMIN)
fert = LANDMIN - e + 40;
else if (e < FERT_MAX)
- fert = (140 * (FERT_MAX - e)) / (FERT_MAX - LANDMIN);
- if (fert > 120)
- fert = 120;
+ fert = (120 * (FERT_MAX - e)) / (FERT_MAX - LANDMIN);
+ if (fert > 100)
+ fert = 100;
return fert;
}
static void
write_sects(void)
{
- register struct sctstr *sct;
+ struct sctstr *sct;
int c, x, y, total;
- /* sct = §s[0][0]; */
- sct = sectsbuf;
- for (y = 0; y < YSIZE; y++) {
- for (x = 0; x < XSIZE; x++, sct++) {
- fl_sct_init(x * 2 + (y & 01), y, (s_char *)sct);
- total = elev[sct->sct_x][y];
+ for (y = 0; y < WORLD_Y; y++) {
+ for (x = y % 2; x < WORLD_X; x += 2) {
+ sct = getsectp(x, y);
+ total = elev[x][y];
if (total < LANDMIN) {
sct->sct_type = SCT_WATER;
} else if (total < HILLMIN)
sct->sct_type = SCT_MOUNT;
sct->sct_elev = total;
sct->sct_newtype = sct->sct_type;
+ sct->sct_dterr = own[sct->sct_x][y] + 1;
if (ORE)
add_resources(sct);
}
}
if (AIRPORT_MARKER)
for (c = 0; c < nc; ++c) {
- sects[capy[c]][capx[c] / 2 + capy[c] % 2].sct_type = SCT_AIRPT;
- sects[capy[c]][capx[c] / 2 + capy[c] % 2].sct_newtype = SCT_AIRPT;
+ sct = getsectp(capx[c], capy[c]);
+ sct->sct_type = SCT_AIRPT;
+ sct->sct_newtype = SCT_AIRPT;
}
-}
-
-/****************************************************************************
- WRITE ALL THIS STUFF TO THE FILE
-****************************************************************************/
-static int
-write_file(void)
-{
- int n;
-
- /* if ((n = write(the_file, sects, sizeof(sects))) < 0) { */
- if ((n = write(the_file, sectsbuf, YSIZE * XSIZE * sizeof(struct sctstr))) < 0) {
- perror(empfile[EF_SECTOR].file);
- return -1;
- }
- if (n != (int)(YSIZE * XSIZE * sizeof(struct sctstr))) {
- printf("%s:partial write\n", empfile[EF_SECTOR].file);
- return -1;
- }
- close(the_file);
- return 0;
+ set_coastal_flags();
}
/****************************************************************************
output(void)
{
int i, j;
- if (opt_BLITZ)
- translate_continents();
if (quiet == 0) {
for (i = 0; i < WORLD_Y; ++i) {
puts("");
printf("\n\nEach continent is marked by a \"*\" on the map (to distinguish them from\nthe islands). You can redesignate these airfields to wilderness sectors\none at a time, each time you add a new country to the game.\n");
}
-/* Reorder the continents from top left to bottom right */
-static void
-translate_continents(void)
-{
- int i, j, n = 0, k, gotit, c;
- int *trans, *trans_cont, *oldcapx, *oldcapy;
-
- trans = (int *)calloc(nc, sizeof(int));
- trans_cont = (int *)calloc(nc, sizeof(int));
- oldcapx = (int *)calloc(nc, sizeof(int));
- oldcapy = (int *)calloc(nc, sizeof(int));
-
- for (i = 0; i < WORLD_Y; ++i) {
- for (j = i % 2; j < WORLD_X; j += 2) {
- if (own[j][i] > -1 && own[j][i] < nc) {
- gotit = 0;
- for (k = 0; k < n; ++k) {
- if (trans[k] == own[j][i])
- gotit = 1;
- }
- if (!gotit) {
- if (n > nc) {
- printf("fairland: BUG in translate continents! mail stevens@math.utoronto.ca\n");
- exit(2);
- }
- trans[n] = own[j][i];
- trans_cont[own[j][i]] = n;
- ++n;
- }
- }
- }
- }
- for (i = 0; i < WORLD_Y; ++i) {
- for (j = i % 2; j < WORLD_X; j += 2) {
- if (own[j][i] > -1 && own[j][i] < nc) {
- own[j][i] = trans_cont[own[j][i]];
- }
- }
- }
- for (c = 0; c < nc; ++c) {
- oldcapx[c] = capx[c];
- oldcapy[c] = capy[c];
- }
- for (c = 0; c < nc; ++c) {
- capx[c] = oldcapx[trans[c]];
- capy[c] = oldcapy[trans[c]];
- }
-}
-
static int
map_symbol(int x, int y)
{
fprintf(script, "newcap %d %d,%d\n", c + 1, capx[c], capy[c]);
}
fprintf(script, "add %d visitor visitor v i\n", c + 1);
- ++c;
fclose(script);
- if (quiet == 0)
- printf("\n\nA script for adding all the countries can be found in \"%s\".\n",
- outfile);
return 0;
}
static void
-qprint(const char *str)
+qprint(const char * const fmt, ...)
{
- if (quiet == 0)
- fputs(str, stdout);
+ va_list ap;
+
+ if (!quiet) {
+ va_start(ap, fmt);
+ vfprintf(stdout, fmt, ap);
+ va_end(ap);
+ }
}
static void
-fl_sct_init(coord x, coord y, s_char *ptr)
+set_coastal_flags(void)
{
- struct sctstr *sp = (struct sctstr *)ptr;
-
- sp->ef_type = EF_SECTOR;
- sp->sct_x = x;
- sp->sct_y = y;
- sp->sct_dist_x = x;
- sp->sct_dist_y = y;
- sp->sct_road = 0;
- sp->sct_rail = 0;
- sp->sct_defense = 0;
+ int i, j;
+ struct sctstr *sp;
+
+ qprint("setting coastal flags...\n");
+ for (i = 0; i < nc; ++i) {
+ for (j = 0; j < sc; j++) {
+ sp = getsectp(sectx[i][j], secty[i][j]);
+ sp->sct_coastal = sectc[i][j];
+ }
+ }
+ for (i = nc; i < nc + ni; ++i) {
+ for (j = 0; j < isecs[i]; j++) {
+ sp = getsectp(sectx[i][j], secty[i][j]);
+ sp->sct_coastal = sectc[i][j];
+ }
+ }
}