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annotate srogue/command.c @ 81:0e212d46b68f

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rogue4: don't put savefile metadata into the savefile. The save_file() function in save.c stored the savefile's device number, inode number, creation time, and modification time in the file. The restore() function read them back, and apparently used to compare them to protect against cheaters. Unfortunately, the types and sizes of these numbers differ from system to system, which ruins the Roguelike Restoration Project's fine portability work. So they have been removed from the savefile. This BREAKS SAVEFILE COMPATIBILITY, but old files can be converted by excising the chunk starting at offset 0x22 with length sizeof(ino_t) + sizeof(dev_t) + 2 * sizeof(time_t). That's 0x14 on i686 and 0x20 on x86_64, at least with current versions of Linux and glibc.
author John "Elwin" Edwards
date Mon, 05 Aug 2013 20:49:41 -0700
parents 47aeaccbb953
children 1e88eb1942a5
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1 /*
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2 * Read and execute the user commands
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3 *
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4 * @(#)command.c 9.0 (rdk) 7/17/84
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5 *
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6 * Super-Rogue
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7 * Copyright (C) 1984 Robert D. Kindelberger
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8 * All rights reserved.
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9 *
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10 * Based on "Rogue: Exploring the Dungeons of Doom"
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11 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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12 * All rights reserved.
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13 *
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14 * See the file LICENSE.TXT for full copyright and licensing information.
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15 */
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16
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17 #include <ctype.h>
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18 #include <signal.h>
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19 #include <stdlib.h>
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20 #include <string.h>
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21 #include <limits.h>
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22 #include "rogue.h"
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23 #include "rogue.ext"
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24 #ifdef __DJGPP__
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25 #include <process.h>
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26 #else
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27 #include <unistd.h>
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28 #endif
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29
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30 /*
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31 * command:
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32 * Process the user commands
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33 */
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34 command()
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35 {
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36 reg char ch;
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37 reg int ntimes = 1; /* Number of player moves */
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38 static char countch, direction, newcount = FALSE;
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39
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40 if (pl_on(ISHASTE))
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41 ntimes++;
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42 /*
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43 * Let the daemons start up
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44 */
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45 while (ntimes-- > 0) {
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46 do_daemons(BEFORE);
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47 look(TRUE);
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48 if (!running)
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49 door_stop = FALSE;
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50 lastscore = purse;
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51 wmove(cw, hero.y, hero.x);
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52 if (!(running || count))
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53 draw(cw); /* Draw screen */
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54 take = 0;
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55 after = TRUE;
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56 /*
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57 * Read command or continue run
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58 */
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59 if (wizard)
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60 waswizard = TRUE;
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61 if (player.t_nocmd <= 0) {
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62 player.t_nocmd = 0;
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63 if (running)
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64 ch = runch;
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65 else if (count)
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66 ch = countch;
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67 else {
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68 ch = readchar();
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69 if (mpos != 0 && !running) /* Erase message if its there */
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70 msg("");
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71 }
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72 }
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73 else
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74 ch = '.';
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75 if (player.t_nocmd > 0) {
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76 if (--player.t_nocmd <= 0)
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77 msg("You can move again.");
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78 }
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79 else {
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80 /*
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81 * check for prefixes
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82 */
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83 if (isdigit(ch)) {
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84 count = 0;
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85 newcount = TRUE;
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86 while (isdigit(ch)) {
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87 count = count * 10 + (ch - '0');
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88 ch = readchar();
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89 }
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90 countch = ch;
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91 /*
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92 * turn off count for commands which don't make sense
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93 * to repeat
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94 */
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95 switch (ch) {
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96 case 'h': case 'j': case 'k': case 'l':
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97 case 'y': case 'u': case 'b': case 'n':
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98 case 'H': case 'J': case 'K': case 'L':
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99 case 'Y': case 'U': case 'B': case 'N':
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100 case 'q': case 'r': case 's': case 'f':
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101 case 't': case 'C': case 'I': case '.':
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102 case 'z': case 'p':
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103 break;
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104 default:
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