Mercurial > hg > early-roguelike
view xrogue/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 | f54901b9c39b |
children | d3968e9cb98d |
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/* save.c - save and restore routines XRogue: Expeditions into the Dungeons of Doom Copyright (C) 1991 Robert Pietkivitch All rights reserved. Based on "Advanced Rogue" Copyright (C) 1984, 1985 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. */ #include <curses.h> #include <ctype.h> #include <string.h> #include <stdlib.h> #include <sys/types.h> #include <signal.h> #include <fcntl.h> #include <errno.h> #include "rogue.h" #include "mach_dep.h" extern char version[]; extern unsigned char encstr[]; extern int big_endian; bool rs_write_int(FILE *savef, int c); bool rs_read_int(int inf, int *i); bool rs_save_file(FILE *savef); bool rs_restore_file(int inf); int md_unlink(char *file); bool save_file(FILE *savef); bool save_game(void) { register FILE *savef; 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 = wgetch(cw); if (c == ESC) 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; } } else goto gotfile; /* must save to file restored from */ 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 ((savef = fopen(file_name, "wb")) == NULL) { msg(strerror(errno)); if (use_savedir) return FALSE; } } while (savef == NULL); msg(""); /* * write out encrpyted file */ if (save_file(savef) == FALSE) { fclose(savef); msg("Cannot create save file."); md_unlink(file_name); return(FALSE); } fclose(savef); return(TRUE); } /* * automatically save a file. This is used if a HUP signal is recieved */ void auto_save(int sig) { register FILE *savef = NULL; register int i; NOOP(sig); for (i = 0; i < NSIG; i++) signal(i, SIG_IGN); if (file_name[0] != '\0' && pstats.s_hpt > 0 && ((savef = fopen(file_name, "wb")) != NULL)) save_file(savef); fclose(savef); exit_game(EXIT_ENDWIN); } /* * write the saved game on the file */ bool save_file(FILE *savef) { int slines = LINES; int scols = COLS; bool ret = FALSE; int endian = 0x01020304; big_endian = ( *((char *)&endian) == 0x01 ); wmove(cw, LINES-1, 0); draw(cw); encwrite(version,strlen(version)+1,savef); rs_write_int(savef,slines); rs_write_int(savef,scols); ret = rs_save_file(savef); return(ret); } bool restore(char *file, char *envp[]) { register int inf; extern char **environ; char buf[LINELEN]; int endian = 0x01020304; big_endian = ( *((char *)&endian) == 0x01 ); if (strcmp(file, "-r") == 0) file = file_name; if ((inf = open(file, O_RDONLY)) < 0) { if (use_savedir && errno == ENOENT) { /* No game in progress, so one will be started. */ 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; } fflush(stdout); rs_read_int(inf,&lines); rs_read_int(inf,&cols); initscr(); if (lines > LINES) { endwin(); printf("Sorry, original game was played on a screen with %d lines.\n",lines); printf("Current screen only has %d lines. Unable to restore game\n",LINES); return(FALSE); } if (cols > COLS) { endwin(); printf("Sorry, original game was played on a screen with %d columns.\n",cols); printf("Current screen only has %d columns. Unable to restore game\n",COLS); return(FALSE); } typeahead(-1); setup(); 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, TRUE); keypad(hw, TRUE); if (rs_restore_file(inf) == FALSE) { endwin(); printf("Cannot restore file\n"); close(inf); return(FALSE); } close(inf); if (!wizard) md_unlink(file); mpos = 0; environ = envp; strcpy(file_name, file); clearok(curscr, TRUE); touchwin(cw); wrefresh(cw); msg("Welcome back! --More-- "); wait_for(' '); msg(""); playit(); /*NOTREACHED*/ return FALSE; } #define ENCWBSIZ 1024 /* * perform an encrypted write */ long encwrite(char *start, unsigned long size, FILE *outf) { register unsigned char *ep; register int i = 0; unsigned long num_written = 0; char buf[ENCWBSIZ]; int ret; ep = encstr; while (size--) { buf[i++] = *start++ ^ *ep++; if (*ep == '\0') ep = encstr; if (i == ENCWBSIZ || size == 0) { ret = (unsigned int) fwrite(buf, 1, i, outf); if (ret > 0) num_written += ret; if (ret < i) return(num_written); i = 0; } } return(num_written); } #define ENCRBSIZ 32768 /* * perform an encrypted read */ long encread(char *start, unsigned long size, int inf) { register unsigned char *ep; register int rd_siz; register unsigned long total_read; total_read = 0; while (total_read < size) { rd_siz = ENCRBSIZ; rd_siz = ((size-total_read) > ENCRBSIZ) ? ENCRBSIZ : (size-total_read); rd_siz = read(inf,&start[total_read],rd_siz); if(rd_siz==-1 || rd_siz==0) break; total_read += rd_siz; } ep = encstr; size = total_read; while (size--) { *start++ ^= *ep++; if (*ep == '\0') ep = encstr; } return total_read; }