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annotate arogue7/command.c @ 132:66b0263af424

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arogue7: prevent segfaults when backstabbing while empty-handed. The calculation of the backstabbing multiplier checked the current weapon's properties without making sure the current weapon pointer was not NULL.
author John "Elwin" Edwards
date Tue, 12 May 2015 18:57:30 -0400
parents 1a64fd0bfea6
children 0c775afe0072
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adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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1 /*
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2 * command.c - Read and execute the user commands
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3 *
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4 * Advanced Rogue
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5 * Copyright (C) 1984, 1985, 1986 Michael Morgan, Ken Dalka and AT&T
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6 * All rights reserved.
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7 *
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8 * Based on "Rogue: Exploring the Dungeons of Doom"
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9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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10 * All rights reserved.
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11 *
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12 * See the file LICENSE.TXT for full copyright and licensing information.
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13 */
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14
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15 /*
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16 * Read and execute the user commands
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17 *
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18 */
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19
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20 #include "curses.h"
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21 #include <ctype.h>
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22 #include <string.h>
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23 #include <stdlib.h>
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24 #include <signal.h>
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25 #include "mach_dep.h"
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26 #include "rogue.h"
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27 #ifdef PC7300
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28 #include "sys/window.h"
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29 extern struct uwdata wdata;
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30 #endif
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31
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32 /*
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33 * command:
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34 * Process the user commands
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35 */
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36
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37 command()
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38 {
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39 unsigned char ch;
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40 struct linked_list *item;
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41 unsigned char countch, direction, newcount = FALSE;
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42 int segment = 1;
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43 int monst_limit, monst_current;
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44
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45 monst_limit = monst_current = 1;
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46 while (playing) {
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47 /*
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48 * Let the daemons start up, but only do them once a round
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49 * (round = 10 segments).
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50 */
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51 if (segment >= 10) {
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52 do_daemons(BEFORE);
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53 do_fuses(BEFORE);
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54 }
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55
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56 after = TRUE;
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57 do {
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58 /* One more tick of the clock. */
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59 if (segment >= 10 && after && (++turns % DAYLENGTH) == 0) {
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60 daytime ^= TRUE;
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61 if (levtype == OUTSIDE) {
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62 if (daytime) msg("The sun rises above the horizon");
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63 else msg("The sun sinks below the horizon");
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64 }
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65 light(&hero);
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66 }
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67
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68 /*
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69 * Don't bother with these updates unless the player's going
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70 * to do something.
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71 */
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72 if (player.t_action == A_NIL && player.t_no_move <= 1) {
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73 look(after, FALSE);
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74 lastscore = purse;
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75 wmove(cw, hero.y, hero.x);
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76 if (!((running || count) && jump)) {
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77 status(FALSE);
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78 }
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79 }
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80
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81 /* Draw the screen */
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82 if (!((running || count) && jump)) {
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83 wmove(cw, hero.y, hero.x);
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84 draw(cw);
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85 }
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86
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87 after = TRUE;
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88
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89 /*
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90 * Read command or continue run
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91 */
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