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annotate rogue3/io.c @ 43:24e6beb9e7aa

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author elwin
date Tue, 07 Dec 2010 16:46:07 +0000
parents 527e2150eaf0
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
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1 /*
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2 * Various input/output functions
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3 *
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4 * @(#)io.c 3.10 (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 <stdlib.h>
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14 #include "curses.h"
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15 #include <ctype.h>
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16 #include <stdarg.h>
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17 #include <string.h>
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18 #include "machdep.h"
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19 #include "rogue.h"
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20
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21 /*
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22 * msg:
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23 * Display a message at the top of the screen.
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24 */
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25
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26 static char msgbuf[BUFSIZ];
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27 static int newpos = 0;
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28
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29 /*VARARGS1*/
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30 void
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31 msg(char *fmt, ...)
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32 {
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33 va_list ap;
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34 /*
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35 * if the string is "", just clear the line
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36 */
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37 if (*fmt == '\0')
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38 {
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39 wmove(cw, 0, 0);
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40 wclrtoeol(cw);
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41 mpos = 0;
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42 return;
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43 }
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44 /*
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45 * otherwise add to the message and flush it out
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46 */
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47 va_start(ap, fmt);
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48 doadd(fmt, ap);
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49 va_end(ap);
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50 endmsg();
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51 }
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52
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53 /*
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54 * add things to the current message
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55 */
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56 void
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57 addmsg(char *fmt, ...)
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58 {
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59 va_list ap;
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60
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61 va_start(ap, fmt);
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62 doadd(fmt, ap);
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63 va_end(ap);
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64 }
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65
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66 /*
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67 * Display a new msg (giving him a chance to see the previous one if it
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68 * is up there with the --More--)
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69 */
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70 void
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71 endmsg()
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72 {
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73 strncpy(huh, msgbuf, 80);
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74 huh[79] = 0;
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75
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76 if (mpos)
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77 {
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78 wmove(cw, 0, mpos);
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79 waddstr(cw, "--More--");
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80 draw(cw);
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81 wait_for(cw,' ');
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82 }
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83 mvwaddstr(cw, 0, 0, msgbuf);
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84 wclrtoeol(cw);
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85 mpos = newpos;
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86 newpos = 0;
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87 draw(cw);
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88 }
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89
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90 void
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91 doadd(char *fmt, va_list ap)
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92 {
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93 vsprintf(&msgbuf[newpos], fmt, ap);
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94 newpos = (int) strlen(msgbuf);
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95 }
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96
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97 /*
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98 * step_ok:
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99 * returns true if it is ok to step on ch
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100 */
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101
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102 int
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103 step_ok(int ch)
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104 {
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105 switch (ch)
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106 {
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107 case ' ':
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108 case '|':
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109 case '-':
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