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annotate srogue/move.c @ 226:b922f66acf4d

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Super-Rogue: begin fixing restore failures on Windows. Start to solve the problem by calling md_init() to set _fmode. Now reading a savefile only triggers an error handler and causes an abort instead of a crash.
author John "Elwin" Edwards
date Thu, 03 Mar 2016 21:30:38 -0500
parents 94a0d9dd5ce1
children e52a8a7ad4c5
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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 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 <string.h>
36
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18 #include <ctype.h>
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19 #include "rogue.h"
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20 #include "rogue.ext"
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21
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22 /*
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23 * Used to hold the new hero position
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24 */
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25
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26 struct coord nh;
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27
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28 /*
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29 * do_run:
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30 * Start the hero running
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31 */
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32
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33 void
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34 do_run(char ch)
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35 {
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36 running = TRUE;
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37 after = FALSE;
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38 runch = ch;
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39 }
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40
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41 /*
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42 * do_move:
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43 * Check to see that a move is legal. If it is handle the
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44 * consequences (fighting, picking up, etc.)
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45 */
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46
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47 void
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48 do_move(int dy, int dx)
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49 {
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50 reg int ch;
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51 reg struct room *rp;
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52
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53 firstmove = FALSE;
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54 curprice = -1;
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55 inpool = FALSE;
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56
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57 if (player.t_nomove > 0) {
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58 player.t_nomove -= 1;
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59 msg("You are still stuck in the bear trap.");
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60 return;
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61 }
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62 /*
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63 * Do a confused move (maybe)
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64 */
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65 if ((rnd(100) < 80 && pl_on(ISHUH)) ||
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66 (iswearing(R_DELUS) && rnd(100) < 25))
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67 nh = *rndmove(&player);
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68 else {
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69 nh.y = hero.y + dy;
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70 nh.x = hero.x + dx;
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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
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74 * an illegal diagonal move, and stop him if he did.
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75 */
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76 if (!cordok(nh.y, nh.x) ||
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77 (pl_off(ISETHER) && !diag_ok(&hero, &nh))) {
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78 after = running = FALSE;
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79 return;
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80 }
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81 if (running) {
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82 ch = winat(nh.y, nh.x);
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83 if (dead_end(ch)) {
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84 reg int gox, goy, apsg, whichway;
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85
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86 gox = goy = apsg = 0;
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87 if (dy == 0) {
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88 ch = show(hero.y+1,hero.x);
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89 if (ch == PASSAGE) {
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90 apsg += 1;
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91 goy = 1;
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92 }
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93 ch = show(hero.y-1,hero.x);
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94 if (ch == PASSAGE) {
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95 apsg += 1;
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96 goy = -1;
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97 }
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98 }
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99 else if (dx == 0) {
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100 ch = show(hero.y,hero.x+1);
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101 if (ch == PASSAGE) {
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102 gox = 1;
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103 apsg += 1;
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104 }
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105 ch = show(hero.y,hero.x-1);
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