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annotate rogue4/move.c @ 96:9fb343307b6b

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Fix some 'test' failures when running 'make install'. When shell variables are unexpectedly empty, 'test' gets the wrong number of arguments and becomes unhappy. Logical AND should not be done with 'test EXPR1 -a EXPR2' in such cases, because 'test' logic does not short-circuit. Replace with 'test EXPR1 && test EXPR2'. Shell logic does short-circuit, and if the first test invocation fails, the second will never occur, and will never encounter missing arguments.
author John "Elwin" Edwards
date Tue, 27 Aug 2013 22:54:28 -0700
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