Early Roguelike Collection: arogue5/chase.c annotate

annotate arogue5/chase.c @ 309:11aeff9acc07

Advanced Rogue 7: ignore file locations in the save file when restoring. The variables file_name, score_file, and home are no longer overwritten with the values stored in the save file. Those values could be inaccurate if the files have been moved or configuration has changed.

author	John "Elwin" Edwards
date	Sun, 02 May 2021 21:54:11 -0400
parents	e52a8a7ad4c5
children

rev	line source
63 0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	1 /*
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	2 * Code for one object to chase another
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	3 *
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	4 * Advanced Rogue
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	5 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	6 * All rights reserved.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	7 *
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	8 * Based on "Rogue: Exploring the Dungeons of Doom"
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	10 * All rights reserved.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	11 *
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	12 * See the file LICENSE.TXT for full copyright and licensing information.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	13 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	14
218 56e748983fa8 Advanced Rogue 5: convert to ANSI function declarations. John "Elwin" Edwards parents: 63 diff changeset	15 #include <stdlib.h>
63 0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	16 #include <ctype.h>
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	17 #include <limits.h>
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	18 #include "curses.h"
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	19 #include "rogue.h"
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	20 #define MAXINT INT_MAX
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	21 #define MININT INT_MIN
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	22
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	23 coord ch_ret; /* Where chasing takes you */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	24
218 56e748983fa8 Advanced Rogue 5: convert to ANSI function declarations. John "Elwin" Edwards parents: 63 diff changeset	25 struct linked_list get_hurl(struct thing tp);
56e748983fa8 Advanced Rogue 5: convert to ANSI function declarations. John "Elwin" Edwards parents: 63 diff changeset	26 bool straight_shot(int ery, int erx, int eey, int eex, coord *shooting);
63 0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	27
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	28
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	29 /*
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	30 * Canblink checks if the monster can teleport (blink). If so, it will
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	31 * try to blink the monster next to the player.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	32 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	33
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	34 bool
218 56e748983fa8 Advanced Rogue 5: convert to ANSI function declarations. John "Elwin" Edwards parents: 63 diff changeset	35 can_blink(struct thing *tp)
63 0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	36 {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	37 register int y, x, index=9;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	38 coord tryp; /* To hold the coordinates for use in diag_ok */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	39 bool spots[9], found_one=FALSE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	40
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	41 /*
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	42 * First, can the monster even blink? And if so, there is only a 50%
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	43 * chance that it will do so. And it won't blink if it is running or
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	44 * held.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	45 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	46 if (off(tp, CANBLINK) \|\| (on(tp, ISHELD)) \|\|
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	47 on(*tp, ISFLEE) \|\|
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	48 (on(tp, ISSLOW) && off(tp, ISHASTE) && !(tp->t_turn)) \|\|
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	49 tp->t_no_move \|\|
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	50 (rnd(12) < 6)) return(FALSE);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	51
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	52
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	53 /* Initialize the spots as illegal */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	54 do {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	55 spots[--index] = FALSE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	56 } while (index > 0);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	57
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	58 /* Find a suitable spot next to the player */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	59 for (y=hero.y-1; y<hero.y+2; y++)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	60 for (x=hero.x-1; x<hero.x+2; x++, index++) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	61 /* Make sure x coordinate is in range and that we are
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	62 * not at the player's position
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	63 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	64 if (x<0 \|\| x >= COLS \|\| index == 4) continue;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	65
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	66 /* Is it OK to move there? */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	67 if (step_ok(y, x, NOMONST, tp) &&
304 e52a8a7ad4c5 Fix many compiler warnings. John "Elwin" Edwards parents: 218 diff changeset	68 (!isatrap(CCHAR( mvwinch(cw, y, x) )) \|\|
63 0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	69 rnd(10) >= tp->t_stats.s_intel \|\|
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	70 on(*tp, ISFLY))) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	71 /* OK, we can go here. But don't go there if
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	72 * monster can't get at player from there
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	73 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	74 tryp.y = y;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	75 tryp.x = x;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	76 if (diag_ok(&tryp, &hero, tp)) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	77 spots[index] = TRUE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	78 found_one = TRUE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	79 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	80 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	81 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	82
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	83 /* If we found one, go to it */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	84 if (found_one) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	85 char rch; /* What's really where the creatures moves to */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	86
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	87 /* Find a legal spot */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	88 while (spots[index=rnd(9)] == FALSE) continue;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	89
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	90 /* Get the coordinates */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	91 y = hero.y + (index/3) - 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	92 x = hero.x + (index % 3) - 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	93
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	94 /* Move the monster from the old space */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	95 mvwaddch(cw, tp->t_pos.y, tp->t_pos.x, tp->t_oldch);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	96
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	97 /* Move it to the new space */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	98 tp->t_oldch = CCHAR( mvwinch(cw, y, x) );
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	99
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	100 /* Display the creature if our hero can see it */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	101 if (cansee(y, x) &&
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	102 off(*tp, ISINWALL) &&
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset

Mercurial > hg > early-roguelike

annotate arogue5/chase.c @ 309:11aeff9acc07