137 lines
2.8 KiB
C
137 lines
2.8 KiB
C
/** Adventure translated from Fortran to "C"
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and ported to Minix by:
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Robert R. Hall
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San Diego, Calif 92115
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hall@crash.cts.com
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*/
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/** program ADVENT.C *
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* "advent.c" allocates GLOBAL storage space by *
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* #defining EXTERN before #including "advdec.h". */
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#include <string.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <time.h>
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#include <stdio.h>
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#include <errno.h>
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#include "advent.h" /* #define preprocessor equates */
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#include "advdec.h"
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#ifndef TEXTDIR
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#define TEXTDIR ""
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#endif
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char textdir[] = TEXTDIR; /* directory where text files
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live. */
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_PROTOTYPE(int main, (int, char **));
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_PROTOTYPE(static void opentxt, (void));
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_PROTOTYPE(static void file_error, (char *));
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int main(argc, argv)
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int argc;
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char **argv;
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{
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opentxt();
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initialize();
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rspeak(325);
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if (argc == 2)
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restore(argv[1]);
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else {
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g.hinted[3] = yes(65, 1, 0);
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g.limit = (g.hinted[3] ? 800 : 550);
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}
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gaveup = FALSE;
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srand((unsigned) time(NULL)); /* seed random */
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while (!gaveup)
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turn();
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fclose(fd1);
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fclose(fd2);
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fclose(fd3);
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fclose(fd4);
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return (EXIT_SUCCESS); /* exit = ok */
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} /* main */
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/*
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Open advent?.txt files
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*/
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static void opentxt()
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{
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static char filename[sizeof(textdir) + 16];
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static FILE **fp[] = {0, &fd1, &fd2, &fd3, &fd4};
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int i;
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for (i = 1; i <= 4; i++) {
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sprintf(filename, "%sadvent%d.dat", textdir, i);
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*fp[i] = fopen(filename, "r");
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if (!*fp[i])
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file_error(filename);
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}
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}
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/*
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save adventure game
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*/
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void saveadv(username)
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char *username;
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{
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int cnt;
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FILE *savefd;
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savefd = fopen(username, "wb");
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if (savefd == NULL) {
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perror(username);
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return;
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}
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cnt = fwrite((void *) &g, 1, sizeof(struct playinfo), savefd);
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if (cnt != sizeof(struct playinfo)) {
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fprintf(stderr, "wrote %d of %u bytes\n",
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cnt, (unsigned) sizeof(struct playinfo));
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if (ferror(savefd)) {
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fprintf(stderr, "errno is: 0x%.4x\n", errno);
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perror(username);
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}
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}
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if (fclose(savefd) == -1) {
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perror(username);
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}
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printf("Saved in %s.\n", username);
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return;
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}
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/*
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restore saved game handler
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*/
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void restore(username)
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char *username;
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{
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int cnt;
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FILE *restfd;
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restfd = fopen(username, "rb");
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if (restfd == NULL)
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file_error(username);
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cnt = fread((void *) &g, 1, sizeof(struct playinfo), restfd);
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if (cnt != sizeof(struct playinfo)) {
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fprintf(stderr, "read %d bytes, expected %u\n",
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cnt, (unsigned) sizeof(struct playinfo));
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if (ferror(restfd)) {
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fprintf(stderr, "errno is: 0x%.4x\n", errno);
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perror(username);
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}
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}
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if (fclose(restfd) == -1) {
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perror(username);
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}
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printf("Restored from %s.\n", username);
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return;
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}
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static void file_error(filename)
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char *filename;
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{
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perror(filename);
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exit(EXIT_FAILURE);
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}
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