96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
#include <stdlib.h>
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#include <string.h>
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#include "advent.h"
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#include "database.h"
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#include "linenoise/linenoise.h"
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/*
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* (ESR) This replaces a bunch of particularly nasty FORTRAN-derived code;
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* see the history.adoc file in the source distribution for discussion.
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*/
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#define VRSION 26 /* bump on save format change */
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/*
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* If you change the first three members, the resume function may not properly
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* reject saves from older versions. Yes, this glues us to a hardware-
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* dependent length of long. Later members can change, but bump the version
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* when you do that.
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*/
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struct save_t {
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long savetime;
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long mode; /* not used, must be present for version detection */
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long version;
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struct game_t game;
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long bird;
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long bivalve;
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};
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struct save_t save;
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int saveresume(FILE *input, bool resume)
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/* Suspend and resume */
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{
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long i, k;
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FILE *fp = NULL;
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char *name;
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if (!resume) {
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/* Suspend. Offer to save things in a file, but charging
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* some points (so can't win by using saved games to retry
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* battles or to start over after learning zzword). */
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RSPEAK(260);
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if (!YES(input,200,54,54)) return GO_CLEAROBJ;
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game.saved=game.saved+5;
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}
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else
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{
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/* Resume. Read a suspended game back from a file. */
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if (game.loc != 1 || game.abbrev[1] != 1) {
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RSPEAK(268);
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if (!YES(input,200,54,54)) return GO_CLEAROBJ;
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}
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}
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while (fp == NULL) {
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name = linenoise("\nFile name: ");
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if (name == NULL)
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return GO_TOP;
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fp = fopen(name,(resume ? READ_MODE : WRITE_MODE));
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if (fp == NULL)
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printf("Can't open file %s, try again.\n", name);
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}
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linenoiseFree(name);
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DATIME(&i,&k);
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k=i+650*k;
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if (!resume)
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{
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save.savetime = k;
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save.mode = -1;
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save.version = VRSION;
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memcpy(&save.game, &game, sizeof(struct game_t));
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save.bird = OBJSND[BIRD];
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save.bivalve = OBJTXT[OYSTER];
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IGNORE(fwrite(&save, sizeof(struct save_t), 1, fp));
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fclose(fp);
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RSPEAK(266);
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exit(0);
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} else {
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IGNORE(fread(&save, sizeof(struct save_t), 1, fp));
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fclose(fp);
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if (save.version != VRSION) {
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SETPRM(1,k/10,MOD(k,10));
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SETPRM(3,VRSION/10,MOD(VRSION,10));
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RSPEAK(269);
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} else {
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memcpy(&game, &save.game, sizeof(struct game_t));
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OBJSND[BIRD] = save.bird;
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OBJTXT[OYSTER] = save.bivalve;
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game.zzword=RNDVOC(3,game.zzword);
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}
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return GO_TOP;
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}
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}
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/* end */
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