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annotate srogue/io.c @ 255:69ffcb6b90da

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Merge the bugfix branch, which had missed an update.
author John "Elwin" Edwards
date Fri, 10 Feb 2017 09:06:50 -0500
parents 94a0d9dd5ce1
children 70aa5808c782
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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 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 <stdarg.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 void doadd(char *fmt, va_list ap);
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24
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25 /*
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26 * msg:
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27 * Display a message at the top of the screen.
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28 */
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29 static char msgbuf[BUFSIZ];
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30 static int newpos = 0;
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31
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32 void
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33 msg(char *fmt, ...)
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34 {
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35 va_list ap;
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36 /*
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37 * if the string is "", just clear the line
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38 */
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39 if (*fmt == '\0') {
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40 wmove(cw, 0, 0);
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41 wclrtoeol(cw);
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42 mpos = 0;
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43 return;
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44 }
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45 /*
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46 * otherwise add to the message and flush it out
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47 */
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48 va_start(ap, fmt);
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49 doadd(fmt, ap);
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50 va_end(ap);
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51 endmsg();
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52 }
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53
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54 /*
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55 * addmsg:
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56 * Add things to the current message
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57 */
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58 void
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59 addmsg(char *fmt, ...)
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60 {
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61 va_list ap;
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62
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63 va_start(ap, fmt);
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64 doadd(fmt, ap);
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65 va_end(ap);
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66 }
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67
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68 /*
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69 * endmsg:
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70 * Display a new msg, giving him a chance to see the
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71 * previous one if it is up there with the --More--
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72 */
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73 void
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74 endmsg(void)
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75 {
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76 strcpy(huh, msgbuf);
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77 if (mpos > 0) {
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78 wmove(cw, 0, mpos);
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79 waddstr(cw, morestr);
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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 /*
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91 * doadd:
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92 * Perform a printf into a buffer
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93 */
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94 void
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95 doadd(char *fmt, va_list ap)
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96 {
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97 vsprintf(&msgbuf[newpos], fmt, ap);
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98 newpos = strlen(msgbuf);
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99 }
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100
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101 /*
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102 * step_ok:
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103 * Returns TRUE if it is ok to step on ch
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104 */
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105 bool
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