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annotate rogue4/options.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 1b73a8641b37
children e52a8a7ad4c5
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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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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 void *o_opt; /* pointer to thing to set */
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31 void (*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 void put_bool(bool *b);
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40 void put_str(char *str);
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41 int get_bool(bool *bp, WINDOW *win);
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42 int get_str(char *opt, WINDOW *win);
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43
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44 OPTION optlist[] = {
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45 {"terse", "Terse output: ",
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46 (void *) &terse, put_bool, get_bool },
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47 {"flush", "Flush typeahead during battle: ",
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48 (void *) &fight_flush, put_bool, get_bool },
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49 {"jump", "Show position only at end of run: ",
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50 (void *) &jump, put_bool, get_bool },
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51 {"step", "Do inventories one line at a time: ",
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52 (void *) &slow_invent, put_bool, get_bool },
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53 {"askme", "Ask me about unidentified things: ",
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54 (void *) &askme, put_bool, get_bool },
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55 {"passgo", "Follow turnings in passageways: ",
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56 (void *) &passgo, put_bool, get_bool },
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57 {"name", "Name: ",
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58 (void *) whoami, put_str, get_str },
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59 {"fruit", "Fruit: ",
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60 (void *) fruit, put_str, get_str },
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61 {"file", "Save file: ",
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62 (void *) file_name, put_str, get_str }
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63 };
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64
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65 /*
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66 * option:
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67 * Print and then set options from the terminal
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68 */
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69 void
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70 option(void)
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71 {
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72 register OPTION *op;
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73 register int retval;
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74
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75 wclear(hw);
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76 /*
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77 * Display current values of options
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78 */
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79 for (op = optlist; op < &optlist[NUM_OPTS]; op++)
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80 {
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81 if (allowchange(op))
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82 {
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83 waddstr(hw, op->o_prompt);
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84 (*op->o_putfunc)(op->o_opt);
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85 waddch(hw, '\n');
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86 }
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87 }
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88 /*
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89 * Set values
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90 */
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91 wmove(hw, 0, 0);
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92 for (op = optlist; op < &optlist[NUM_OPTS]; op++)
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93 {
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94 if (!allowchange(op))
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