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annotate rogue4/move.c @ 306:057c5114e244

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Super-Rogue: fix some out-of-range constants. Constants K_ARROW etc., for causes of death other than monsters, are in the 240-255 range. They were often passed to functions taking char, which is usually signed, making the values out of range. The function declarations have been changed to unsigned char, which is also the type used by the scoreboard code.
author John "Elwin" Edwards
date Sat, 17 Apr 2021 15:41:12 -0400
parents 1b73a8641b37
children
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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 void turnref(void);
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18 char be_trapped(coord *tc);
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19
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20 /*
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21 * Used to hold the new hero position
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22 */
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23
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24 coord nh;
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25
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26 /*
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27 * do_run:
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28 * Start the hero running
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29 */
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30 void
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31 do_run(char ch)
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32 {
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33 running = TRUE;
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34 after = FALSE;
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35 runch = ch;
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36 }
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37
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38 /*
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39 * do_move:
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40 * Check to see that a move is legal. If it is handle the
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41 * consequences (fighting, picking up, etc.)
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42 */
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43 void
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44 do_move(int dy, int dx)
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45 {
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46 register char ch, fl;
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47
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48 firstmove = FALSE;
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49 if (no_move)
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50 {
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51 no_move--;
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52 msg("you are still stuck in the bear trap");
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53 return;
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54 }
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55 /*
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56 * Do a confused move (maybe)
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57 */
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58 if (on(player, ISHUH) && rnd(5) != 0)
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59 {
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60 nh = *rndmove(&player);
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61 if (ce(nh, hero))
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62 {
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63 after = FALSE;
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64 running = FALSE;
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65 return;
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66 }
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67 }
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68 else
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69 {
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70 over:
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71 nh.y = hero.y + dy;
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72 nh.x = hero.x + dx;
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73 }
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74
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75 /*
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76 * Check if he tried to move off the screen or make an illegal
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77 * diagonal move, and stop him if he did.
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78 */
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79 if (nh.x < 0 || nh.x > COLS-1 || nh.y < 1 || nh.y > LINES - 2)
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80 goto hit_bound;
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81 if (!diag_ok(&hero, &nh))
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82 {
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83 after = FALSE;
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84 running = FALSE;
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85 return;
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86 }
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87 if (running && ce(hero, nh))
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88 after = running = FALSE;
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89 fl = flat(nh.y, nh.x);
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90 ch = winat(nh.y, nh.x);
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91 if (!(fl & F_REAL) && ch == FLOOR)
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92 {
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93 chat(nh.y, nh.x) = ch = TRAP;
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94 flat(nh.y, nh.x) |= F_REAL;
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95 }
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96 else
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97 if (on(player, ISHELD) && ch != 'F')
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98 {
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99 msg("you are being held");
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100 return;
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101 }
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102 switch (ch)
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103 {
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104 case ' ':
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105