annotate srogue/options.c @ 113:aa582a02eb5d

srogue: remove unnecessary pointer cast. Casting char* to int before a comparison doesn't alter the result, and isn't safe if sizeof(char *) != sizeof(int).
author John "Elwin" Edwards
date Thu, 27 Mar 2014 11:09:30 -0700
parents 00baf21eb047
children 458df24e973d
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1 /*
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2 * This file has all the code for the option command.
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3 *
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4 * @(#)options.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 <termios.h>
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18 #include <ctype.h>
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19 #include <string.h>
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20 #include "rogue.h"
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21 #include "rogue.ext"
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22
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23 extern struct termios terminal;
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24
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25 /*
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26 * description of an option and what to do with it
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27 */
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28 struct optstruct {
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29 char *o_name; /* option name */
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30 char *o_prompt; /* prompt for interactive entry */
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31 char *o_opt; /* pointer to thing to set */
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32 };
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33
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34 typedef struct optstruct OPTION;
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35
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36 int put_str(), get_str();
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37
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38 OPTION optlist[] = {
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39 { "name", "Name: ", whoami },
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40 { "fruit", "Fruit: ", fruit },
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41 { "file", "Save file: ", file_name }
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42 };
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43 #define NUM_OPTS (sizeof optlist / sizeof (OPTION))
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44 OPTION safeoptlist[] = {
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45 { "fruit", "Fruit: ", fruit },
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46 };
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47 #define NUM_SOPTS (sizeof safeoptlist / sizeof (OPTION))
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48
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49 /*
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50 * print and then set options from the terminal
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51 */
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52 option()
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53 {
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54 reg OPTION *op;
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55 reg int wh;
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56 OPTION *olist;
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57 int olen;
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58
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59 if (use_savedir) {
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60 olist = safeoptlist;
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61 olen = NUM_SOPTS;
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62 }
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63 else {
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64 olist = optlist;
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65 olen = NUM_OPTS;
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66 }
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67
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68 wclear(hw);
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69 touchwin(hw);
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70 /*
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71 * Display current values of options
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72 */
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73 for (op = olist; op < &olist[olen]; op++) {
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74 wh = op - olist;
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75 mvwaddstr(hw, wh, 0, op->o_prompt);
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76 mvwaddstr(hw, wh, 16, op->o_opt);
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77 }
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78 /*
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79 * Set values
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80 */
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81 wmove(hw, 0, 0);
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82 for (op = olist; op < &olist[olen]; op++) {
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83 wmove(hw, op - olist, 16);
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84 if ((wh = get_str(op->o_opt, hw))) {
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85 if (wh == QUIT)
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86 break;
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87 else if (op > olist) {
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88 wmove(hw, op - olist, 0);
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89 op -= 2;
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90 }
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91 else {
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92 putchar(7);
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93 wmove(hw, 0, 0);
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94 op -= 1;
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95 }
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96 }
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97 }
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98 /*
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99 * Switch back to original screen
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100 */
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101 dbotline(hw,spacemsg);
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102 restscr(cw);
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