Mercurial > hg > early-roguelike
view arogue7/save.c @ 245:e7aab31362af
Rogue V[345], Super-Rogue: Fix violet fungi/venus flytraps.
Violet fungi (renamed venus flytraps in Rogue V5) do an increasing
amount of damage each time they hit. If they miss, you still suffer
the same number of HP. This worked by keeping a counter and printing
new damage strings into monsters[5].m_stats.s_dmg, which is the
"prototype" of that particular monster.
Each individual monster has its own damage string. Apparently these
were once char *, pointing to the same string as the prototype. When
the s_dmg member was changed to be an internal char array, changing the
prototype's damage string no longer had any effect on actual monsters.
As a result, flytraps did no damage on a hit, or only one point in V5.
The mechanism for doing damage on a miss continued to work.
This has been fixed by overwriting the individual monster's damage
string instead of the prototype's. It is now no longer necessary to
reset the damage string when the flytrap is killed. The method for
resetting it when the hero teleports away had to be modified. Comments
referencing the long-unused xstr have been removed.
author | John "Elwin" Edwards |
---|---|
date | Sun, 01 May 2016 19:39:56 -0400 |
parents | f9ef86cf22b2 |
children | 3d4252fa2ed3 |
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/* * save.c - save and restore routines * * Advanced Rogue * Copyright (C) 1984, 1985, 1986 Michael Morgan, Ken Dalka and AT&T * All rights reserved. * * Based on "Rogue: Exploring the Dungeons of Doom" * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman * All rights reserved. * * See the file LICENSE.TXT for full copyright and licensing information. */ /* * save and restore routines * */ #include "curses.h" #include <ctype.h> #include <stdlib.h> #include <string.h> #include <sys/types.h> #include <sys/stat.h> #include <signal.h> #include "rogue.h" #include <fcntl.h> #include <errno.h> #include "mach_dep.h" #ifdef PC7300 #include "sys/window.h" extern struct uwdata wdata; #endif #if u370 || uts #define ENCREAD(b,n,fd) read(fd,b,n) #define ENCWRITE(b,n,fd) write(fd,b,n) #endif #ifndef ENCREAD #define ENCREAD encread #define ENCWRITE encwrite #endif bool save_file(int savefd); typedef struct stat STAT; extern char version[], encstr[]; /* extern bool _endwin; */ extern int errno; STAT sbuf; bool save_game(void) { register int savefd; register int c; char buf[LINELEN]; /* * get file name */ mpos = 0; if (file_name[0] != '\0') { if (use_savedir) msg("Save game? "); else msg("Save file (%s)? ", file_name); do { c = readchar(); if (c == ESCAPE) return(0); } while (c != 'n' && c != 'N' && c != 'y' && c != 'Y'); mpos = 0; if (c == 'y' || c == 'Y') { msg("File name: %s", file_name); goto gotfile; } } if (use_savedir) { msg(""); return FALSE; } do { msg("File name: "); mpos = 0; buf[0] = '\0'; if (get_str(buf, msgw) == QUIT) { msg(""); return FALSE; } strcpy(file_name, buf); gotfile: if ((savefd = open(file_name, O_WRONLY|O_CREAT|O_TRUNC,0666)) < 0) { msg(strerror(errno)); /* fake perror() */ if (use_savedir) return FALSE; } } while (savefd < 0); /* * write out encrpyted file (after a stat) */ if (save_file(savefd) == FALSE) { msg("Cannot create save file."); md_unlink(file_name); return(FALSE); } else return(TRUE); } /* * automatically save a file. This is used if a HUP signal is * recieved */ void auto_save(int sig) { register int savefd; register int i; for (i = 0; i < NSIG; i++) signal(i, SIG_IGN); if (file_name[0] != '\0' && pstats.s_hpt > 0 && (savefd = open(file_name, O_WRONLY|O_CREAT|O_TRUNC, 0600)) >= 0) save_file(savefd); endwin(); #ifdef PC7300 endhardwin(); #endif exit(1); } /* * write the saved game on the file */ bool save_file(int savefd) { register unsigned num_to_write, num_written; FILE *savef; int ret; wmove(cw, lines-1, 0); draw(cw); lseek(savefd, 0L, 0); fstat(savefd, &sbuf); num_to_write = strlen(version) + 1; num_written = ENCWRITE(version, num_to_write, savefd); sprintf(prbuf,"%d x %d\n", LINES, COLS); ENCWRITE(prbuf,80,savefd); savef = (FILE *) md_fdopen(savefd,"wb"); ret = rs_save_file(savef); fclose(savef); if (num_to_write == num_written && ret == 0) return(TRUE); else return(FALSE); } bool restore(char *file, char *envp[]) { register int inf; extern char **environ; char buf[LINELEN]; STAT sbuf2; int oldcol, oldline; /* Old number of columns and lines */ if (strcmp(file, "-r") == 0) file = file_name; if ((inf = open(file, 0)) < 0) { if (use_savedir && errno == ENOENT) { return TRUE; } perror(file); return FALSE; } fflush(stdout); ENCREAD(buf, strlen(version) + 1, inf); if (strcmp(buf, version) != 0) { printf("Sorry, saved game is out of date.\n"); return FALSE; } /* * Get the lines and columns from the previous game */ ENCREAD(buf, 80, inf); sscanf(buf, "%d x %d\n", &oldline, &oldcol); fstat(inf, &sbuf2); fflush(stdout); initscr(); if (COLS < oldcol || LINES < oldline) { endwin(); printf("Cannot restart the game on a smaller screen.\n"); return FALSE; } setup(); /* * Set up windows */ cw = newwin(lines, cols, 0, 0); mw = newwin(lines, cols, 0, 0); hw = newwin(lines, cols, 0, 0); msgw = newwin(4, cols, 0, 0); keypad(cw,1); keypad(msgw,1); if (rs_restore_file(inf) != 0) { printf("Cannot restore file\n"); close(inf); return(FALSE); } cols = COLS; lines = LINES; if (cols > 85) cols = 85; if (lines > 24) lines = 24; mpos = 0; msg(""); /*msg("%s: %s", file, ctime(&sbuf2.st_mtime));*/ /* * defeat multiple restarting from the same place */ if (!wizard && md_unlink_open_file(file, inf) < 0) { printf("Cannot unlink file\n"); return FALSE; } environ = envp; strcpy(file_name, file); setup(); clearok(curscr, TRUE); touchwin(cw); srand(getpid()); playit(); /*NOTREACHED*/ return(0); } #define ENCWBSIZ 1024 /* * perform an encrypted write */ int encwrite(char *start, unsigned int size, int outf) { register char *ep; register int i = 0; int num_written = 0; auto char buf[ENCWBSIZ]; ep = encstr; while (size--) { buf[i++] = *start++ ^ *ep++ ; if (*ep == '\0') ep = encstr; if (i == ENCWBSIZ || size == 0) { if (write(outf, buf, (unsigned)i) < i) return(num_written); else { num_written += i; i = 0; } } } return(num_written); } /* * perform an encrypted read */ int encread(char *start, unsigned int size, int inf) { register char *ep; register int read_size; if ((read_size = read(inf, start, size)) == -1 || read_size == 0) return read_size; ep = encstr; size = read_size; while (size--) { *start++ ^= *ep++; if (*ep == '\0') ep = encstr; } return read_size; }