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annotate srogue/command.c @ 110:5f51f7d9805f

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arogue5: fix some save/restore-related crashes. The save/restore code took the pointer intended as an argument for the doctor() daemon and wrote it to the savefile as an int. I don't know why it took so long to fail horribly. The problem has been avoided by replacing the value with &player when restoring. That seems to be the only argument ever actually used. The code also writes only four bytes for an unsigned long; if sizeof(long) == 8, it casts to unsigned int first. It failed to do the cast when reading back, with the result that four bytes were read and the other half of the number was effectively uninitialized. It apparently works now, but the save/restore code ought still to be regarded as decidedly unfortunate.
author John "Elwin" Edwards
date Mon, 06 Jan 2014 15:57:17 -0500
parents 1e88eb1942a5
children 458df24e973d
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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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