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annotate rogue5/state.c @ 102:1906d183f1f5

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srogue: add install and uninstall targets to Makefile
author John "Elwin" Edwards
date Mon, 02 Sep 2013 15:47:37 -0700
parents 09db0cf536af
children 7f8f43943b1f
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1 /*
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2 state.c - Portable Rogue Save State Code
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3
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4 Copyright (C) 1999, 2000, 2005 Nicholas J. Kisseberth
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5 All rights reserved.
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6
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7 Redistribution and use in source and binary forms, with or without
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8 modification, are permitted provided that the following conditions
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9 are met:
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10 1. Redistributions of source code must retain the above copyright
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11 notice, this list of conditions and the following disclaimer.
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12 2. Redistributions in binary form must reproduce the above copyright
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13 notice, this list of conditions and the following disclaimer in the
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14 documentation and/or other materials provided with the distribution.
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15 3. Neither the name(s) of the author(s) nor the names of other contributors
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16 may be used to endorse or promote products derived from this software
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17 without specific prior written permission.
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18
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19 THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTORS ``AS IS'' AND
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20 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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21 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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22 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTORS BE LIABLE
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23 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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24 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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25 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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26 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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27 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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28 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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29 SUCH DAMAGE.
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30 */
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31
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32 #include <stdlib.h>
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33 #include <string.h>
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34 #include <curses.h>
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35 #include <errno.h>
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36 #include "rogue.h"
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37
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38 /************************************************************************/
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39 /* Save State Code */
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40 /************************************************************************/
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41
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42 #define RSID_STATS 0xABCD0001
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43 #define RSID_THING 0xABCD0002
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44 #define RSID_THING_NULL 0xDEAD0002
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45 #define RSID_OBJECT 0xABCD0003
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46 #define RSID_MAGICITEMS 0xABCD0004
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47 #define RSID_KNOWS 0xABCD0005
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48 #define RSID_GUESSES 0xABCD0006
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49 #define RSID_OBJECTLIST 0xABCD0007
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50 #define RSID_BAGOBJECT 0xABCD0008
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51 #define RSID_MONSTERLIST 0xABCD0009
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52 #define RSID_MONSTERSTATS 0xABCD000A
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53 #define RSID_MONSTERS 0xABCD000B
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54 #define RSID_TRAP 0xABCD000C
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55 #define RSID_WINDOW 0xABCD000D
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56 #define RSID_DAEMONS 0xABCD000E
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57 #define RSID_IWEAPS 0xABCD000F
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58 #define RSID_IARMOR 0xABCD0010
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59 #define RSID_SPELLS 0xABCD0011
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60 #define RSID_ILIST 0xABCD0012
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61 #define RSID_HLIST 0xABCD0013
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62 #define RSID_DEATHTYPE 0xABCD0014
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63 #define RSID_CTYPES 0XABCD0015
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64 #define RSID_COORDLIST 0XABCD0016
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65 #define RSID_ROOMS 0XABCD0017
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66
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67 #define READSTAT (format_error || read_error )
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68 #define WRITESTAT (write_error)
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69
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70 static int read_error = FALSE;
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71 static int write_error = FALSE;
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72 static int format_error = FALSE;
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73 static int endian = 0x01020304;
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74 #define big_endian ( *((char *)&endian) == 0x01 )
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75
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76 void
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77 rs_write(FILE *savef, const void *ptr, size_t size)
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78 {
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79 encwrite(ptr, size, savef);
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80 }
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81
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82 void
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83 rs_read(FILE *savef, void *ptr, size_t size)
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84 {
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85 encread(ptr, size, savef);
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86 }
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87
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88 void
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89 rs_write_int(FILE *savef, int c)
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90 {
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91 char bytes[4];
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92 char *buf = (char *) &c;
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93
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94 if (big_endian)
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95 {
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96 bytes[3] = buf[0];
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97 bytes[2] = buf[1];
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98 bytes[1] = buf[2];
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99 bytes[0] = buf[3];
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100 buf = bytes;
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101 }
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102
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103 rs_write(savef, buf, 4);
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104 }
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105
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106 void