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annotate urogue/move.c @ 281:4a3f4729257c

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Merge the urogue and bugfix branches.
author John "Elwin" Edwards
date Fri, 15 Sep 2017 21:16:28 -0400
parents c495a4f288c6
children e52a8a7ad4c5
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1 /*
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2 move.c - Hero movement commands
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3
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4 UltraRogue: The Ultimate Adventure in the Dungeons of Doom
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5 Copyright (C) 1985, 1986, 1992, 1993, 1995 Herb Chong
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6 All rights reserved.
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7
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8 Based on "Advanced Rogue"
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9 Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka
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10 All rights reserved.
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11
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12 Based on "Rogue: Exploring the Dungeons of Doom"
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13 Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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14 All rights reserved.
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15
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16 See the file LICENSE.TXT for full copyright and licensing information.
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17 */
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18
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19 #include <stdlib.h>
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20 #include <ctype.h>
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21 #include "rogue.h"
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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(char 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 if (doorstop && !on(player, ISBLIND))
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36 {
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37 door_stop = TRUE;
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38 firstmove = TRUE;
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39 }
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40 }
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41
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42 /*
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43 step_ok()
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44 returns true if it is ok for type to step on ch flgptr will be
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45 NULL if we don't know what the monster is yet!
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46 */
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47
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48 int
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49 step_ok(int y, int x, int can_on_monst, struct thing *flgptr)
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50 {
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51 struct linked_list *item;
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52 char ch;
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53
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54 /* What is here? Don't check monster window if MONSTOK is set */
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55
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56 if (can_on_monst == MONSTOK)
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57 ch = CCHAR( mvinch(y, x) );
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58 else
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59 ch = winat(y, x);
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60
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61 switch (ch)
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62 {
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63 case ' ':
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64 case '|':
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65 case '-':
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66 case SECRETDOOR:
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67 if (flgptr && on(*flgptr, CANINWALL))
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68 return(TRUE);
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69
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70 return(FALSE);
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71
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72 case SCROLL:
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73 /*
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74 * If it is a scroll, it might be a scare monster scroll so
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75 * we need to look it up to see what type it is.
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76 */
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77
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78 if (flgptr && flgptr->t_ctype == C_MONSTER)
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79 {
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80 item = find_obj(y, x);
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81
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82 if (item != NULL && (OBJPTR(item))->o_type == SCROLL
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83 && (OBJPTR(item))->o_which == S_SCARE
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84 && rnd(flgptr->t_stats.s_intel) < 12)
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85 return(FALSE); /* All but smart ones are scared */
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86 }
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87 return(TRUE);
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88
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89 default:
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90 return(!isalpha(ch));
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91 }
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92 }
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93
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94 /*
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