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annotate rogue4/options.c @ 120:d6b7c3fb37ea

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srogue: add and use more md_* portable functions. Privileges and memory usage checks are now more portable.
author John "Elwin" Edwards
date Fri, 02 May 2014 15:06:23 -0700
parents e7dc81b41168
children 1b73a8641b37
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1 /*
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2 * This file has all the code for the option command. I would rather
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3 * this command were not necessary, but it is the only way to keep the
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4 * wolves off of my back.
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5 *
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6 * @(#)options.c 4.12 (Berkeley) 3/2/82
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7 *
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8 * Rogue: Exploring the Dungeons of Doom
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9 * Copyright (C) 1980, 1981, 1982 Michael Toy, Ken Arnold and Glenn Wichman
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10 * All rights reserved.
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11 *
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12 * See the file LICENSE.TXT for full copyright and licensing information.
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13 */
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14
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15 #include <curses.h>
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16 #include <ctype.h>
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17 #include <string.h>
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18 #include "rogue.h"
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19
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20 #define EQSTR(a, b, c) (strncmp(a, b, c) == 0)
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21
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22 #define NUM_OPTS (sizeof optlist / sizeof (OPTION))
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23
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24 /*
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25 * description of an option and what to do with it
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26 */
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27 struct optstruct {
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28 char *o_name; /* option name */
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29 char *o_prompt; /* prompt for interactive entry */
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30 int *o_opt; /* pointer to thing to set */
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31 int (*o_putfunc)(); /* function to print value */
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32 int (*o_getfunc)(); /* function to get value interactively */
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33 };
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34
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35 typedef struct optstruct OPTION;
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36
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37 int allowchange(OPTION *opt);
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38
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39 int put_bool(), get_bool(), put_str(), get_str();
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40
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41 OPTION optlist[] = {
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42 {"terse", "Terse output: ",
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43 (int *) &terse, put_bool, get_bool },
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44 {"flush", "Flush typeahead during battle: ",
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45 (int *) &fight_flush, put_bool, get_bool },
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46 {"jump", "Show position only at end of run: ",
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47 (int *) &jump, put_bool, get_bool },
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48 {"step", "Do inventories one line at a time: ",
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49 (int *) &slow_invent, put_bool, get_bool },
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50 {"askme", "Ask me about unidentified things: ",
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51 (int *) &askme, put_bool, get_bool },
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52 {"passgo", "Follow turnings in passageways: ",
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53 (int *) &passgo, put_bool, get_bool },
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54 {"name", "Name: ",
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55 (int *) whoami, put_str, get_str },
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56 {"fruit", "Fruit: ",
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57 (int *) fruit, put_str, get_str },
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58 {"file", "Save file: ",
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59 (int *) file_name, put_str, get_str }
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60 };
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61
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62 /*
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63 * option:
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64 * Print and then set options from the terminal
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65 */
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66 option()
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67 {
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68 register OPTION *op;
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69 register int retval;
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70
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71 wclear(hw);
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72 /*
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73 * Display current values of options
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74 */
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75 for (op = optlist; op < &optlist[NUM_OPTS]; op++)
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76 {
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77 if (allowchange(op))
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78 {
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79 waddstr(hw, op->o_prompt);
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80 (*op->o_putfunc)(op->o_opt);
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81 waddch(hw, '\n');
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82 }
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83 }
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84 /*
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85 * Set values
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86 */
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87 wmove(hw, 0, 0);
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88 for (op = optlist; op < &optlist[NUM_OPTS]; op++)
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89 {
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90 if (!allowchange(op))
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91 continue;
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92 waddstr(hw, op->o_prompt);
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93 if ((retval = (*op->o_getfunc)(op->o_opt, hw)))
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94 {
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95 if (retval == QUIT)
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96 break;
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97 #if 0 /* disable MINUS */
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98 else if (op > optlist) { /* MINUS */
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99 wmove(hw, (op - optlist) - 1, 0);
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100 op -= 2;
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101 }
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