Early Roguelike Collection: arogue7/weapons.c annotate

annotate arogue7/weapons.c @ 175:10c273a62228

srogue: remove md_droppriv() and md_resetpriv(). These partial privilege-dropping functions are no longer needed.

author	John "Elwin" Edwards
date	Sat, 01 Aug 2015 16:31:03 -0400
parents	b786053d2f37
children	f9ef86cf22b2

rev	line source
125 adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	1 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	2 * weapons.c - Functions for dealing with problems brought about by weapons
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	3 *
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	4 * Advanced Rogue
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	5 * Copyright (C) 1984, 1985, 1986 Michael Morgan, Ken Dalka and AT&T
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	6 * All rights reserved.
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	7 *
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	8 * Based on "Rogue: Exploring the Dungeons of Doom"
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	10 * All rights reserved.
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	11 *
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	12 * See the file LICENSE.TXT for full copyright and licensing information.
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	13 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	14
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	15 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	16 * Functions for dealing with problems brought about by weapons
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	17 *
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	18 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	19
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	20 #include "curses.h"
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	21 #include <ctype.h>
126 b786053d2f37 arogue7: add missing header includes. John "Elwin" Edwards parents: 125 diff changeset	22 #include <string.h>
125 adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	23 #include "rogue.h"
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	24
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	25 boomerang(ydelta, xdelta, item, tp)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	26 int ydelta, xdelta;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	27 register struct linked_list *item;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	28 register struct thing *tp;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	29 {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	30 register struct object *obj;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	31 struct thing midpoint;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	32 coord oldpos;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	33
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	34 obj = OBJPTR(item);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	35 oldpos = obj->o_pos;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	36
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	37 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	38 * make it appear to fly at the target
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	39 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	40 do_motion(obj, ydelta, xdelta, tp);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	41 hit_monster(unc(obj->o_pos), obj, tp);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	42
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	43 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	44 * Now let's make it fly back to the wielder. We need to
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	45 * use midpoint to fool do_motion into thinking the action
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	46 * starts there. Do_motion only looks at the t_pos field.
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	47 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	48 midpoint.t_pos = obj->o_pos; /* Simulate a new start position */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	49 do_motion(obj, -ydelta, -xdelta, &midpoint);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	50
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	51 obj->o_pos = oldpos;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	52 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	53
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	54 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	55 * do the actual motion on the screen done by an object traveling
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	56 * across the room. Note that we should not look at any field in
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	57 * tp other than t_pos unless we change boomerang().
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	58 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	59 do_motion(obj, ydelta, xdelta, tp)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	60 register struct object *obj;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	61 register int ydelta, xdelta;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	62 register struct thing *tp;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	63 {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	64
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	65 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	66 * Come fly with us ...
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	67 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	68 obj->o_pos = tp->t_pos;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	69 for (; ;) {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	70 register int ch;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	71 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	72 * Erase the old one
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	73 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	74 if (!ce(obj->o_pos, tp->t_pos) &&
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	75 cansee(unc(obj->o_pos)) &&
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	76 mvwinch(cw, obj->o_pos.y, obj->o_pos.x) != ' ') {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	77 mvwaddch(cw, obj->o_pos.y, obj->o_pos.x, show(obj->o_pos.y, obj->o_pos.x));
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	78 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	79 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	80 * Get the new position
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	81 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	82 obj->o_pos.y += ydelta;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	83 obj->o_pos.x += xdelta;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	84 if (shoot_ok(ch = winat(obj->o_pos.y, obj->o_pos.x)) && ch != DOOR && !ce(obj->o_pos, hero)) {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	85 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	86 * It hasn't hit anything yet, so display it
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	87 * If it alright.
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	88 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	89 if (cansee(unc(obj->o_pos)) &&
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	90 mvwinch(cw, obj->o_pos.y, obj->o_pos.x) != ' ') {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	91 mvwaddch(cw, obj->o_pos.y, obj->o_pos.x, obj->o_type);

Mercurial > hg > early-roguelike

annotate arogue7/weapons.c @ 175:10c273a62228