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annotate arogue5/weapons.c @ 81:0e212d46b68f

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rogue4: don't put savefile metadata into the savefile. The save_file() function in save.c stored the savefile's device number, inode number, creation time, and modification time in the file. The restore() function read them back, and apparently used to compare them to protect against cheaters. Unfortunately, the types and sizes of these numbers differ from system to system, which ruins the Roguelike Restoration Project's fine portability work. So they have been removed from the savefile. This BREAKS SAVEFILE COMPATIBILITY, but old files can be converted by excising the chunk starting at offset 0x22 with length sizeof(ino_t) + sizeof(dev_t) + 2 * sizeof(time_t). That's 0x14 on i686 and 0x20 on x86_64, at least with current versions of Linux and glibc.
author John "Elwin" Edwards
date Mon, 05 Aug 2013 20:49:41 -0700
parents c49f7927b0fa
children 56e748983fa8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
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1 /*
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2 * Functions for dealing with problems brought about by weapons
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3 *
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4 * Advanced Rogue
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5 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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6 * All rights reserved.
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7 *
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8 * Based on "Rogue: Exploring the Dungeons of Doom"
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9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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10 * All rights reserved.
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11 *
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12 * See the file LICENSE.TXT for full copyright and licensing information.
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13 */
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14
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15 #include "curses.h"
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16 #include <ctype.h>
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c49f7927b0fa arogue5: add missing header files.
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17 #include <string.h>
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18 #include "rogue.h"
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19
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20
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21
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22 /*
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23 * do the actual motion on the screen done by an object traveling
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24 * across the room
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25 */
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26 do_motion(obj, ydelta, xdelta, tp)
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27 register struct object *obj;
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28 register int ydelta, xdelta;
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29 register struct thing *tp;
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30 {
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31
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32 /*
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33 * Come fly with us ...
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34 */
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35 obj->o_pos = tp->t_pos;
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36 for (; ;) {
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37 register int ch;
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38 /*
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39 * Erase the old one
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40 */
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41 if (!ce(obj->o_pos, tp->t_pos) &&
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42 cansee(unc(obj->o_pos)) &&
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43 mvwinch(cw, obj->o_pos.y, obj->o_pos.x) != ' ') {
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44 mvwaddch(cw, obj->o_pos.y, obj->o_pos.x, show(obj->o_pos.y, obj->o_pos.x));
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45 }
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46 /*
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47 * Get the new position
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48 */
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49 obj->o_pos.y += ydelta;
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50 obj->o_pos.x += xdelta;
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51 if (shoot_ok(ch = winat(obj->o_pos.y, obj->o_pos.x)) && ch != DOOR && !ce(obj->o_pos, hero)) {
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52 /*
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53 * It hasn't hit anything yet, so display it
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54 * If it alright.
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55 */
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56 if (cansee(unc(obj->o_pos)) &&
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57 mvwinch(cw, obj->o_pos.y, obj->o_pos.x) != ' ') {
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58 mvwaddch(cw, obj->o_pos.y, obj->o_pos.x, obj->o_type);
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59 draw(cw);
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60 }
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61 continue;
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62 }
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63 break;
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64 }
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65 }
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66
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67
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68 /*
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69 * fall:
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70 * Drop an item someplace around here.
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71 */
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72
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73 fall(item, pr)
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74 register struct linked_list *item;
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75 bool pr;
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76 {
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77 register struct object *obj;
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78 register struct room *rp;
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79 register int i;
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80 coord *fpos = NULL;
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81
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82 obj = OBJPTR(item);
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83 /*
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84 * try to drop the item, look up to 3 squares away for now
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85 */
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86 for (i=1; i<4; i++) {
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87 if ((fpos = fallpos(&obj->o_pos, FALSE, i)) != NULL)
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88 break;
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89 }
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90
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91 if (fpos != NULL) {
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92 mvaddch(fpos->y, fpos->x, obj->o_type);
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93 obj->o_pos = *fpos;
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94 if ((rp = roomin(&hero)) != NULL &&
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95 lit_room(rp)) {
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96 light(&hero);
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97 mvwaddch(cw, hero.y, hero.x, PLAYER);
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98 }
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99 attach(lvl_obj, item);
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100 return;
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101 }
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102
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103
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104 if (pr) {