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annotate rogue3/move.c @ 229:50b89f165a34

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Use uniform return types for functions related to options. Functions for printing options now return void. Functions for setting options now return int. Argument types still vary, though converting all the option pointers to void* would be possible.
author John "Elwin" Edwards
date Sun, 06 Mar 2016 14:45:18 -0500
parents d9e44e18eeec
children
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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 3.26 (Berkeley) 6/15/81
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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 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
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28 void
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29 do_run(int ch)
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30 {
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31 running = TRUE;
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32 after = FALSE;
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33 runch = ch;
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34 }
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35
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36 /*
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37 * do_move:
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38 * Check to see that a move is legal. If it is handle the
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39 * consequences (fighting, picking up, etc.)
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40 */
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41
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42 void
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43 do_move(int dy, int dx)
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44 {
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45 int ch;
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46
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47 firstmove = FALSE;
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48 if (no_move)
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49 {
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50 no_move--;
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51 msg("You are still stuck in the bear trap");
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52 return;
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53 }
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54 /*
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55 * Do a confused move (maybe)
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56 */
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57 if (rnd(100) < 80 && on(player, ISHUH))
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58 nh = *rndmove(&player);
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59 else
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60 {
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61 nh.y = hero.y + dy;
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62 nh.x = hero.x + dx;
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63 }
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64
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65 /*
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66 * Check if he tried to move off the screen or make an illegal
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67 * diagonal move, and stop him if he did.
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68 */
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69 if (nh.x < 0 || nh.x > COLS-1 || nh.y < 0 || nh.y > LINES - 1
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70 || !diag_ok(&hero, &nh))
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71 {
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72 after = FALSE;
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73 running = FALSE;
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74 return;
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75 }
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76 if (running && ce(hero, nh))
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77 after = running = FALSE;
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78 ch = winat(nh.y, nh.x);
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79 if (on(player, ISHELD) && ch != 'F')
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80 {
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81 msg("You are being held");
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82 return;
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83 }
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84 switch(ch)
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85 {
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86 case ' ':
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87 case '|':
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88 case '-':
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89 case SECRETDOOR:
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90 after = running = FALSE;
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91 return;
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92 case TRAP:
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93 ch = be_trapped(&nh);
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94 if (ch == TRAPDOOR || ch == TELTRAP)
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95 return;
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96 goto move_stuff;
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97 case GOLD:
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98 case POTION:
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99 case SCROLL:
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100 case FOOD:
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101 case WEAPON:
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102 case ARMOR:
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103 case RING:
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104 case AMULET:
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105 case STICK:
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106 running = FALSE;
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107 take = ch;
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