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annotate rogue4/move.c @ 162:600873555ec0

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Don't swap signal handlers in md_shellescape(). md_shellescape() sets SIGINT and SIGQUIT to be ignored, storing the previous handlers, and restores them after the shell exits. But it mixed up the two handlers. Since the signals were usually handled by the same function, this fix doesn't have much effect, but anything that makes signal code less confusing is a good thing.
author John "Elwin" Edwards
date Mon, 08 Jun 2015 10:01:25 -0400
parents 9535a08ddc39
children 1b73a8641b37
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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12
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1 /*
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2 * Hero movement commands
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3 *
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4 * @(#)move.c 4.24 (Berkeley) 5/12/82
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5 *
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6 * Rogue: Exploring the Dungeons of Doom
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7 * Copyright (C) 1980, 1981, 1982 Michael Toy, Ken Arnold and Glenn Wichman
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8 * All rights reserved.
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9 *
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10 * See the file LICENSE.TXT for full copyright and licensing information.
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11 */
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12
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13 #include <curses.h>
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14 #include <ctype.h>
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15 #include "rogue.h"
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16
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17 /*
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18 * Used to hold the new hero position
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19 */
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20
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21 coord nh;
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22
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23 /*
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24 * do_run:
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25 * Start the hero running
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26 */
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27 do_run(ch)
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28 char ch;
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29 {
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30 running = TRUE;
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31 after = FALSE;
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32 runch = ch;
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33 }
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34
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35 /*
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36 * do_move:
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37 * Check to see that a move is legal. If it is handle the
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38 * consequences (fighting, picking up, etc.)
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39 */
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40 do_move(dy, dx)
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41 int dy, dx;
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42 {
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43 register char ch, fl;
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44
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45 firstmove = FALSE;
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46 if (no_move)
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47 {
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48 no_move--;
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49 msg("you are still stuck in the bear trap");
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50 return;
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51 }
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52 /*
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53 * Do a confused move (maybe)
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54 */
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55 if (on(player, ISHUH) && rnd(5) != 0)
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56 {
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57 nh = *rndmove(&player);
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58 if (ce(nh, hero))
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59 {
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60 after = FALSE;
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61 running = FALSE;
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62 return;
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63 }
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64 }
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65 else
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66 {
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67 over:
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68 nh.y = hero.y + dy;
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69 nh.x = hero.x + dx;
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70 }
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71
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72 /*
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73 * Check if he tried to move off the screen or make an illegal
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74 * diagonal move, and stop him if he did.
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75 */
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76 if (nh.x < 0 || nh.x > COLS-1 || nh.y < 1 || nh.y > LINES - 2)
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77 goto hit_bound;
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78 if (!diag_ok(&hero, &nh))
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79 {
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80 after = FALSE;
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81 running = FALSE;
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82 return;
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83 }
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84 if (running && ce(hero, nh))
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85 after = running = FALSE;
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86 fl = flat(nh.y, nh.x);
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87 ch = winat(nh.y, nh.x);
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88 if (!(fl & F_REAL) && ch == FLOOR)
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89 {
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90 chat(nh.y, nh.x) = ch = TRAP;
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91 flat(nh.y, nh.x) |= F_REAL;
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92 }
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93 else
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94 if (on(player, ISHELD) && ch != 'F')
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95 {
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96 msg("you are being held");
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97 return;
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98 }
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99 switch (ch)
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100 {
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101 case ' ':
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102 case '|':
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103 case '-':
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104 hit_bound:
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105 if (passgo && running && (proom->r_flags & ISGONE)
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106 && !on(player, ISBLIND))
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diff