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annotate arogue5/weapons.c @ 63:0ed67132cf10

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Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
author elwin
date Thu, 09 Aug 2012 22:58:48 +0000
parents
children c49f7927b0fa
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63
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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17 #include "rogue.h"
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18
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19
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20
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21 /*
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22 * do the actual motion on the screen done by an object traveling
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23 * across the room
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24 */
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25 do_motion(obj, ydelta, xdelta, tp)
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26 register struct object *obj;
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27 register int ydelta, xdelta;
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28 register struct thing *tp;
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29 {
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30
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31 /*
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32 * Come fly with us ...
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33 */
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34 obj->o_pos = tp->t_pos;
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35 for (; ;) {
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36 register int ch;
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37 /*
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38 * Erase the old one
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39 */
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40 if (!ce(obj->o_pos, tp->t_pos) &&
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41 cansee(unc(obj->o_pos)) &&
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42 mvwinch(cw, obj->o_pos.y, obj->o_pos.x) != ' ') {
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43 mvwaddch(cw, obj->o_pos.y, obj->o_pos.x, show(obj->o_pos.y, obj->o_pos.x));
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44 }
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45 /*
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46 * Get the new position
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47 */
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48 obj->o_pos.y += ydelta;
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49 obj->o_pos.x += xdelta;
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50 if (shoot_ok(ch = winat(obj->o_pos.y, obj->o_pos.x)) && ch != DOOR && !ce(obj->o_pos, hero)) {
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51 /*
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52 * It hasn't hit anything yet, so display it
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53 * If it alright.
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54 */
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55 if (cansee(unc(obj->o_pos)) &&
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56 mvwinch(cw, obj->o_pos.y, obj->o_pos.x) != ' ') {
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57 mvwaddch(cw, obj->o_pos.y, obj->o_pos.x, obj->o_type);
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58 draw(cw);
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59 }
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60 continue;
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61 }
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62 break;
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63 }
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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 * fall:
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69 * Drop an item someplace around here.
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70 */
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71
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72 fall(item, pr)
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73 register struct linked_list *item;
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74 bool pr;
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75 {
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76 register struct object *obj;
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77 register struct room *rp;
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78 register int i;
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79 coord *fpos = NULL;
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80
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81 obj = OBJPTR(item);
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82 /*
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83 * try to drop the item, look up to 3 squares away for now
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84 */
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85 for (i=1; i<4; i++) {
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86 if ((fpos = fallpos(&obj->o_pos, FALSE, i)) != NULL)
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87 break;
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88 }
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89
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90 if (fpos != NULL) {
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91 mvaddch(fpos->y, fpos->x, obj->o_type);
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92 obj->o_pos = *fpos;
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93 if ((rp = roomin(&hero)) != NULL &&
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94 lit_room(rp)) {
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95 light(&hero);
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96 mvwaddch(cw, hero.y, hero.x, PLAYER);
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97 }
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98 attach(lvl_obj, item);
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99 return;
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100 }
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101
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102
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