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annotate srogue/io.c @ 84:a0d4caead33b

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rogue4: don't delete the savefile if the terminal is too small. Let the user resize the terminal and try again.
author John "Elwin" Edwards
date Thu, 08 Aug 2013 14:30:12 -0700
parents 3aa87373c908
children 8757a0593e6e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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>
60
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19 #include <string.h>
36
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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 /*
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24 * msg:
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25 * Display a message at the top of the screen.
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26 */
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27 static char msgbuf[BUFSIZ];
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28 static int newpos = 0;
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29
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30 msg(char *fmt, ...)
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31 {
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32 va_list ap;
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33 /*
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34 * if the string is "", just clear the line
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35 */
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36 if (*fmt == '\0') {
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37 wmove(cw, 0, 0);
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38 wclrtoeol(cw);
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39 mpos = 0;
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40 return;
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41 }
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42 /*
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43 * otherwise add to the message and flush it out
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44 */
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45 va_start(ap, fmt);
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46 doadd(fmt, ap);
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47 va_end(ap);
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48 endmsg();
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49 }
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50
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51 /*
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52 * addmsg:
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53 * Add things to the current message
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54 */
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55 addmsg(char *fmt, ...)
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56 {
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57 va_list ap;
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58
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59 va_start(ap, fmt);
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60 doadd(fmt, ap);
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61 va_end(ap);
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62 }
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63
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64 /*
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65 * endmsg:
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66 * Display a new msg, giving him a chance to see the
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67 * previous one if it is up there with the --More--
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68 */
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69 endmsg()
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70 {
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71 strcpy(huh, msgbuf);
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72 if (mpos > 0) {
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73 wmove(cw, 0, mpos);
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74 waddstr(cw, morestr);
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75 draw(cw);
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76 wait_for(cw, ' ');
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77 }
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78 mvwaddstr(cw, 0, 0, msgbuf);
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79 wclrtoeol(cw);
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80 mpos = newpos;
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81 newpos = 0;
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82 draw(cw);
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83 }
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84
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85 /*
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86 * doadd:
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87 * Perform a printf into a buffer
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88 */
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89 doadd(char *fmt, va_list ap)
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90 {
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91 vsprintf(&msgbuf[newpos], fmt, ap);
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92 newpos = strlen(msgbuf);
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93 }
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94
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95 /*
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96 * step_ok:
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97 * Returns TRUE if it is ok to step on ch
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98 */
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99 step_ok(ch)
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100 unsigned char ch;
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101 {
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102 if (dead_end(ch))
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103 return FALSE;
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104 else if (ch >= 32 && ch <= 127 && !isalpha(ch))
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105 return TRUE;
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106 return FALSE;
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107 }
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108
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