#include "global.h"
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "skills.h"
#include "spells.h"
#include "sproto.h"
#include "minheap.h"

Include dependency graph for monster.c:

Data Structures
struct	path_data

Macros
#define	MAX_EXPLORE 5000

#define	MAX_KNOWN_SPELLS 20

#define	MIN_MON_RADIUS 3

Functions
static uint16_t	estimate_distance (int16_t ax, int16_t ay, int16_t bx, int16_t by)

static const char *	get_reply_text_other (reply_type rt)

const char *	get_reply_text_own (reply_type rt)

static void	monster_apply_below (object *monster)

int	monster_can_detect_enemy (object op, object enemy, rv_vector *rv)

static int	monster_can_hit (object ob1, object ob2, rv_vector *rv)

static int	monster_can_pick (object monster, object item)

int	monster_can_see_enemy (object op, object enemy)

static int	monster_cast_spell (object head, object part, object *pl, int dir)

static void	monster_check_apply (object mon, object item)

void	monster_check_apply_all (object *monster)

void	monster_check_doors (object op, mapstruct m, int x, int y)

void	monster_check_earthwalls (object op, mapstruct m, int x, int y)

object *	monster_check_enemy (object npc, rv_vector rv)

static int	monster_check_good_armour (object who, object item)

static int	monster_check_good_weapon (object who, object item)

static void	monster_check_pickup (object *monster)

static int	monster_check_wakeup (object op, object enemy, rv_vector *rv)

static object *	monster_choose_random_spell (object *monster)

static void	monster_circ1_move (object *ob)

static void	monster_circ2_move (object *ob)

void	monster_communicate (object op, const char txt)

int	monster_compute_path (object source, object target, int default_dir)

static int	monster_dist_att (int dir, object enemy, object part, rv_vector *rv)

static int	monster_disthit_att (int dir, object ob, object enemy, object part, rv_vector rv)

void	monster_do_living (object *op)

void	monster_do_say (const mapstruct map, const char message)

static int	monster_do_talk_npc (object npc, talk_info info)

static object *	monster_find_enemy (object npc, rv_vector rv)

object *	monster_find_nearest_living_creature (object npc, object exclude)

object *	monster_find_throw_ob (object *op)

static StringBuffer *	monster_format_say (const object npc, const char message)

static int	monster_get_armour_quality (const object *item)

static int	monster_get_weapon_quality (const object *item)

static int	monster_hitrun_att (int dir, object *ob)

int	monster_move (object *op)

static int	monster_move_no_enemy (object *op)

static int	monster_move_randomly (object *op)

void	monster_npc_call_help (object *op)

void	monster_npc_say (object npc, const char cp)

static void	monster_pace2_moveh (object *ob)

static void	monster_pace2_movev (object *ob)

static void	monster_pace_moveh (object *ob)

static void	monster_pace_movev (object *ob)

static void	monster_rand_move (object *ob)

static int	monster_run_att (int dir, object ob, object enemy, object part, rv_vector rv)

static int	monster_should_cast_spell (object *spell_ob)

int	monster_stand_in_light (object *op)

static int	monster_talk_to_npc (object npc, talk_info info)

static int	monster_use_bow (object head, object part, object *pl, int dir)

static int	monster_use_range (object head, object part, object *pl, int dir)

static int	monster_use_scroll (object head, object part, object *pl, int dir)

static int	monster_use_skill (object head, object part, object *pl, int dir)

static int	monster_wait_att (int dir, object ob, object enemy, object part, rv_vector rv)

static int	monster_wait_att2 (int dir, rv_vector *rv)

int	path_measure_func (const void *ob)

Detailed Description

This deals with monster moving, attacking, using items and such. The core function is monster_move().

Definition in file monster.c.

Macro Definition Documentation

◆ MAX_EXPLORE

#define MAX_EXPLORE 5000

Maximum map size to consider when finding a path in monster_compute_path().

Definition at line 383 of file monster.c.

◆ MAX_KNOWN_SPELLS

#define MAX_KNOWN_SPELLS 20

Maximum number of spells to consider when choosing a spell for a monster.

Definition at line 1171 of file monster.c.

◆ MIN_MON_RADIUS

#define MIN_MON_RADIUS 3

Minimum monster detection radius.

Definition at line 56 of file monster.c.

Function Documentation

◆ estimate_distance()

static uint16_t estimate_distance	(	int16_t	ax,
		int16_t	ay,
		int16_t	bx,
		int16_t	by
	)

inlinestatic

Heuristic function to make the pathing follow an A* search.

(ax, ay) and (bx, by) are the cooridnates we are estinating the distance between.

Definition at line 416 of file monster.c.

References FABS, MAX, and MIN.

Referenced by monster_compute_path().

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◆ get_reply_text_other()

static const char* get_reply_text_other ( reply_type rt )

static

Return the verb for the player's dialog type seen from others (third person).

Parameters

rt	dialog type.

Returns: verb.

Definition at line 2281 of file monster.c.

References rt_question, rt_reply, and rt_say.

Referenced by monster_communicate().

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◆ get_reply_text_own()

const char* get_reply_text_own ( reply_type rt )

Return the verb for the player's dialog type.

Parameters

rt	dialog type.

Returns: verb.

Definition at line 2263 of file monster.c.

References rt_question, rt_reply, and rt_say.

Referenced by convertType(), CREMessageTypeDelegate::createEditor(), and monster_communicate().

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◆ monster_apply_below()

static void monster_apply_below ( object * monster )

static

If a monster who's eager to apply things encounters something apply-able, then make him apply it.

Author: Vick's (vick@.nosp@m.bern.nosp@m..docs.nosp@m..uu..nosp@m.se)

Date: 921107

Definition at line 1936 of file monster.c.

References apply_manual(), CF_HANDLE, FLAG_IS_FLOOR, FOR_BELOW_FINISH, FOR_BELOW_PREPARE, QUERY_FLAG, Ice::tmp, TREASURE, TRIGGER, obj::will_apply, WILL_APPLY_HANDLE, and WILL_APPLY_TREASURE.

Referenced by monster_move().

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◆ monster_can_detect_enemy()

int monster_can_detect_enemy	(	object *	op,
		object *	enemy,
		rv_vector *	rv
	)

Determine if we can 'detect' the enemy. Check for walls blocking the los. Also, just because its hidden/invisible, we may be sensitive/smart enough (based on Wis & Int) to figure out where the enemy is. -b.t.

Modified by MSW to use the get_rangevector so that map tiling works properly. I also so odd code in place that checked for x distance OR y distance being within some range - that seemed wrong - both should be within the valid range. MSW 2001-08-05

Parameters

op	who should detect.
enemy	what to detect.
rv	if the function returns 1, contains the range vector towards enemy.

Returns: 0 if enemy can not be detected, 1 if it is detected

Definition at line 2522 of file monster.c.

References obj::contr, rv_vector::distance, draw_ext_info_format(), find_skill_by_number(), FLAG_SEE_IN_DARK, FLAG_STEALTH, FLAG_WIZ, get_rangevector(), pl::hidden, obj::hide, obj::invisible, is_true_undead(), obj::level, llevError, LOG(), make_visible(), disinfect::map, obj::map, MAX, MAX_BUF, MIN_MON_RADIUS, monster_can_see_enemy(), monster_stand_in_light(), MSG_TYPE_SKILL, MSG_TYPE_SKILL_FAILURE, give::name, NDI_UNIQUE, give::op, PLAYER, player_can_view(), QUERY_FLAG, query_name(), RANDOM, SK_HIDING, pl::tmp_invis, and obj::type.

Referenced by attempt_steal(), get_nearest_player(), monster_check_enemy(), and pets_get_enemy().

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◆ monster_can_hit()

static int monster_can_hit	(	object *	ob1,
		object *	ob2,
		rv_vector *	rv
	)

static

Checks if monster can hit in hand-to-hand combat. Multitile aware.

Parameters

ob1	monster trying to hit.
ob2	target to hit.
rv	vector from ob1 to ob2.

Returns: 1 if ob1 is adjacent to ob2, 0 else.

Todo:: rename to something more clear (is_adjacent?).

Definition at line 1105 of file monster.c.

References rv_vector::distance_x, rv_vector::distance_y, FLAG_CONFUSED, get_rangevector(), obj::more, guildbuy::ob1, guildbuy::ob2, QUERY_FLAG, and RANDOM.

Referenced by monster_dist_att(), monster_move(), monster_run_att(), and monster_wait_att().

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◆ monster_can_pick()

static int monster_can_pick	(	object *	monster,
		object *	item
	)

static

Check if the monster can and is interested in picking up an item.

Parameters

monster	monster to check.
item	what item to check against

Returns

0 if item can or should not be picked by monster.
1 if monster picks item.

Definition at line 1855 of file monster.c.

References obj::arch, ARROW, obj::body_info, BOW, archt::clone, FLAG_CAN_USE_SKILL, FLAG_CAST_SPELL, FLAG_IS_THROWN, FLAG_UNPAID, FLAG_USE_ARMOUR, FLAG_USE_BOW, FLAG_USE_RANGE, FLAG_USE_RING, FLAG_USE_SCROLL, FLAG_USE_SHIELD, FLAG_USE_WEAPON, FOOD, GEM, IS_ARMOR, IS_SHIELD, IS_WEAPON, MONEY, NUM_BODY_LOCATIONS, object_can_pick(), object_find_by_type_subtype(), obj::pick_up, QUERY_FLAG, RING, ROD, SCROLL, SK_THROWING, SKILL, SPELLBOOK, and WAND.

Referenced by monster_check_pickup().

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◆ monster_can_see_enemy()

int monster_can_see_enemy	(	object *	op,
		object *	enemy
	)

Assuming no walls/barriers, lets check to see if its possible to see an enemy. Note, "detection" is different from "seeing". See monster_can_detect_enemy() for more details. -b.t.

Parameters

op	who is trying to see enemy.
enemy	victim op is trying to see.

Returns: 0 if can't be seen, 1 if can be

Definition at line 2705 of file monster.c.

References mapdef::darkness, draw_ext_info(), FLAG_ALIVE, FLAG_BLIND, FLAG_SEE_IN_DARK, FLAG_SEE_INVISIBLE, FLAG_XRAYS, has_carried_lights(), HEAD, obj::hide, obj::invisible, is_true_undead(), make_visible(), makes_invisible_to(), obj::map, monster_stand_in_light(), MSG_TYPE_SKILL, MSG_TYPE_SKILL_FAILURE, NDI_UNIQUE, give::op, PLAYER, player_can_view(), QUERY_FLAG, and obj::type.

Referenced by adj_attackroll(), attack_ob_simple(), monster_can_detect_enemy(), and pets_get_enemy().

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◆ monster_cast_spell()

static int monster_cast_spell	(	object *	head,
		object *	part,
		object *	pl,
		int	dir
	)

static

Tries to make a (part of a) monster cast a spell.

Handles sp/gr limits, and confusion.

Parameters

head	head of the monster.
part	part of the monster that we use to cast.
pl	target.
dir	direction to cast.

Returns: 1 if monster casted a spell, 0 else.

Definition at line 1226 of file monster.c.

References cast_spell(), CLEAR_FLAG, liv::dam, dirdiff(), rv_vector::direction, FLAG_CAST_SPELL, FLAG_CONFUSED, FLAG_FRIENDLY, get_randomized_dir(), get_rangevector(), liv::grace, obj::inv, llevError, llevMonster, LOG(), monster_choose_random_spell(), obj::name, object_get_owner(), path_to_player(), QUERY_FLAG, obj::range, liv::sp, SP_level_spellpoint_cost(), SPELL_GRACE, SPELL_MANA, SPELLBOOK, obj::spellitem, obj::stats, obj::type, and guild_entry::x1.

Referenced by monster_move().

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◆ monster_check_apply()

static void monster_check_apply	(	object *	mon,
		object *	item
	)

static

Called after an item is inserted in a monster. Will look if item should be applied to replace another item.

Parameters

mon	monster who picked an item.
item	what was picked up.

Note: Sept 96, fixed this so skills will be readied -b.t.

Definition at line 1694 of file monster.c.

References AP_APPLY, AP_IGNORE_CURSE, AP_NOPRINT, apply_can_apply_object(), apply_manual(), obj::arch, ARROW, BOW, CAN_APPLY_NOT_MASK, archt::clone, obj::count, FLAG_APPLIED, FLAG_CAST_SPELL, FLAG_READY_BOW, FLAG_READY_RANGE, FLAG_READY_SCROLL, FLAG_READY_SKILL, FLAG_USE_BOW, FLAG_USE_SCROLL, FOOD, IS_ARMOR, IS_SHIELD, llevDebug, llevMonster, LOG(), mon, monster_check_good_armour(), monster_check_good_weapon(), monster_should_cast_spell(), object_find_by_type_and_race(), QUERY_FLAG, RING, ROD, SCROLL, SET_FLAG, SKILL, SPELLBOOK, TREASURE, WAND, WEAPON, obj::will_apply, WILL_APPLY_FOOD, and WILL_APPLY_TREASURE.

Referenced by monster_check_apply_all(), and monster_check_pickup().

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◆ monster_check_apply_all()

void monster_check_apply_all ( object * monster )

Calls monster_check_apply() for all inventory objects.

Parameters

monster the monster to operate on

Definition at line 1959 of file monster.c.

References fix_object(), FOR_INV_FINISH, FOR_INV_PREPARE, obj::head, commongive::inv, and monster_check_apply().

Referenced by apply_auto_fix(), command_create(), fix_summon_pet(), generate_monster_arch(), generate_monster_inv(), pets_summon_object(), polymorph_living(), and START_TEST().

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◆ monster_check_doors()

void monster_check_doors	(	object *	op,
		mapstruct *	m,
		int	x,
		int	y
	)

Living creature attempts to open a door.

Parameters

op	creature to consider.
m	map to consider.
x	coordinate.
y	coordinate.

Definition at line 2223 of file monster.c.

References AT_PHYSICAL, DOOR, FOR_MAP_FINISH, FOR_MAP_PREPARE, hit_player(), m, give::op, Ice::tmp, diamondslots::x, and diamondslots::y.

Referenced by move_ob().

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◆ monster_check_earthwalls()

void monster_check_earthwalls	(	object *	op,
		mapstruct *	m,
		int	x,
		int	y
	)

Living creature attempts to hit an earthwall.

Parameters

op	creature to consider.
m	map to consider.
x	coordinate.
y	coordinate.

Definition at line 2207 of file monster.c.

References AT_PHYSICAL, EARTHWALL, FOR_MAP_FINISH, FOR_MAP_PREPARE, hit_player(), m, give::op, Ice::tmp, diamondslots::x, and diamondslots::y.

Referenced by move_ob().

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◆ monster_check_enemy()

object* monster_check_enemy	(	object *	npc,
		rv_vector *	rv
	)

Checks npc->enemy and returns that enemy if still valid, NULL otherwise. This is map tile aware. If this returns an enemy, the range vector rv should also be set to sane values.

Parameters

	npc	monster we're considering
[out]	rv	will contain vector to go to enemy if function returns not NULL.

Returns: valid enemy for npc.

Definition at line 72 of file monster.c.

References obj::enemy, FLAG_FREED, FLAG_FRIENDLY, FLAG_GENERATOR, FLAG_MONSTER, FLAG_NEUTRAL, FLAG_REMOVED, GOLEM, HI4, monster_can_detect_enemy(), npc_dialog::npc, object_get_owner(), object_set_enemy(), on_same_map(), PETMOVE, pets_should_arena_attack(), PLAYER, and QUERY_FLAG.

Referenced by monster_find_enemy(), and pets_get_enemy().

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◆ monster_check_good_armour()

static int monster_check_good_armour	(	object *	who,
		object *	item
	)

static

Checks if using armor 'item' would be better for 'who'. This is a very simplistic check - also checking things like speed and ac are also relevant.

Parameters

who	creature considering to apply item.
item	item to check.

Returns: 1 if item is a better object, 0 else.

Definition at line 1659 of file monster.c.

References monster_get_armour_quality(), NROFATTACKS, object_find_by_type_applied(), obj::resist, and autojail::who.

Referenced by monster_check_apply().

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◆ monster_check_good_weapon()

static int monster_check_good_weapon	(	object *	who,
		object *	item
	)

static

Checks if using weapon 'item' would be better for 'who'. This is a very simplistic check - also checking things like speed and ac are also relevant.

Parameters

who	creature considering to apply item.
item	item to check.

Returns: 1 if item is a better object, 0 else.

Definition at line 1612 of file monster.c.

References monster_get_weapon_quality(), object_find_by_type_applied(), and autojail::who.

Referenced by monster_check_apply().

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◆ monster_check_pickup()

static void monster_check_pickup ( object * monster )

static

Checks for items that monster can pick up.

Vick's (vick(at)bern.docs.uu.se) fix 921030 for the sweeper blob. Each time the blob passes over some treasure, it will grab it a.s.a.p.

Eneq((at)csd.uu.se): This can now be defined in the archetypes, added code to handle this.

This function was seen be continueing looping at one point (tmp->below became a recursive loop. It may be better to call monster_check_apply after we pick everything up, since that function may call others which affect stacking on this space.

Parameters

monster monster that can pick up items.

Definition at line 1811 of file monster.c.

References obj::carrying, FOR_BELOW_FINISH, FOR_BELOW_PREPARE, get_weight_limit(), MAX, MIN, monster_can_pick(), monster_check_apply(), obj::more, object_insert_in_ob(), object_split(), obj::stats, liv::Str, THROWN_OBJ, Ice::tmp, nlohmann::detail::void(), and obj::weight.

Referenced by monster_move().

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◆ monster_check_wakeup()

static int monster_check_wakeup	(	object *	op,
		object *	enemy,
		rv_vector *	rv
	)

static

Sees if this monster should wake up. Currently, this is only called from monster_move(), and if enemy is set, then so should be rv.

Parameters

	op	monster to check.
	enemy	enemy that can cause to wake up.
[out]	rv	vector pointing to enemy.

Returns: 1 if the monster should wake up, 0 otherwise.

Note: will return 0 if enemy is NULL.

Definition at line 304 of file monster.c.

References CLEAR_FLAG, rv_vector::distance, FLAG_BLIND, FLAG_SEE_IN_DARK, FLAG_SEE_INVISIBLE, FLAG_SLEEP, FLAG_STEALTH, obj::invisible, MAX, MIN_MON_RADIUS, monster_stand_in_light(), give::op, and QUERY_FLAG.

Referenced by monster_move().

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◆ monster_choose_random_spell()

static object* monster_choose_random_spell ( object * monster )

static

Selects a spell to cast for a monster.

Returns a randomly selected spell. This logic is still less than ideal. This code also only seems to deal with wizard spells, as the check is against sp, and not grace. can monsters know cleric spells?

Parameters

monster monster trying to cast a spell.

Returns: spell to cast, NULL if none suitable found.

Note: Will only consider the first MAX_KNOWN_SPELLS spells found.

Definition at line 1188 of file monster.c.

References FOR_INV_FINISH, FOR_INV_PREPARE, MAX_KNOWN_SPELLS, monster_should_cast_spell(), RANDOM, SPELL, SPELLBOOK, and Ice::tmp.

Referenced by monster_cast_spell().

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◆ monster_circ1_move()

static void monster_circ1_move ( object * ob )

static

Move the monster in a specified movement pattern.

Parameters

ob monster.

Definition at line 2105 of file monster.c.

References move_object(), guildjoin::ob, RANDOM, and nlohmann::detail::void().

Referenced by monster_move_no_enemy().

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◆ monster_circ2_move()

static void monster_circ2_move ( object * ob )

static

Move the monster in a specified movement pattern.

Parameters

ob monster.

Definition at line 2118 of file monster.c.

References move_object(), guildjoin::ob, RANDOM, and nlohmann::detail::void().

Referenced by monster_move_no_enemy().

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◆ monster_communicate()

void monster_communicate	(	object *	op,
		const char *	txt
	)

This function looks for an object or creature that is listening to said text.

The process is such:

first, build up information on NPCs reacting to what is said, replies
second, figure what the player will be displayed as said
third, have the player actually talk
fourth, the NPCs talk too
fifth: show the player available replies

There is a rare event that the orig_map is used for - basically, if a player says the magic word that gets him teleported off the map, it can result in the new map putting the object count too high, which forces the swap out of some other map. In some cases, the map the player was just on now gets swapped out - thus, the object on that map are no longer in memory. So check to see if the players map changes, and if so, don't process any further. If it does change, most likely we don't care about the results of further conversation. Also, depending on the value of i, the conversation would continue on the new map, which probably isn't what is really wanted either.

Parameters

op	who is saying something.
txt	what is said.

Definition at line 2319 of file monster.c.

References draw_ext_info(), draw_ext_info_format(), ext_info_map_except(), FOR_MAP_FINISH, FOR_MAP_PREPARE, free_string(), freearr_x, freearr_y, get_map_flags(), get_reply_text_other(), get_reply_text_own(), llevDebug, LOG(), MAX_BUF, talk_info::message, talk_info::message_type, monster_do_say(), monster_talk_to_npc(), MSG_TYPE_COMMUNICATION, MSG_TYPE_COMMUNICATION_SAY, NDI_WHITE, npc_dialog::npc, talk_info::npc_msg_count, talk_info::npc_msgs, give::op, P_OUT_OF_MAP, talk_info::replies, talk_info::replies_count, talk_info::replies_words, SIZEOFFREE2, talk_info::text, talk_info::who, diamondslots::x, and diamondslots::y.

Referenced by command_say().

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◆ monster_compute_path()

int monster_compute_path	(	object *	source,
		object *	target,
		int	default_dir
	)

Computes a path from source to target. Takes into account walls, other living things, and such. Only works if both items are on same map.

Computes the path from target to source, so that the last direction is the one we need.

Parameters

source	what wants to move.
target	target to go to.
default_dir	general direction from source to target.

Returns: direction to go into. Will be default_dir if no path found.

Todo:: cache path, smart adjustment and such things to not compute all the time ; try directions randomly.

Also, do a quick check to make sure our source monster is not completely sandwiched Do this before we malloc our distance array since we can check this without needing that array.

Does not do multitile right: I keep seeing two-tile monsters that can only go south not do so because of this code. So skip multitile monsters. – 2018-05-28

It is worth noting that the variables used here are also used later – their info here is irrelevant there, and vice versa. Daniel Hawkins 2018-02-12

Definition at line 438 of file monster.c.

References absdir(), obj::attack_movement, replace::current, path_data::distance, estimate_distance(), fatal(), FOR_OB_AND_ABOVE_FINISH, FOR_OB_AND_ABOVE_PREPARE, freearr_x, freearr_y, GET_MAP_OB, mapdef::height, path_data::heuristic_dist, liv::Int, obj::map, MAX_EXPLORE, minheap_init_static(), minheap_insert(), minheap_remove(), obj::more, obj::move_type, MOVE_WALK, path_data::movement_penalty, ob_blocked(), OUT_OF_MEMORY, OUT_OF_REAL_MAP, path_measure_func(), RANDOM, RUSH, obj::stats, Ice::tmp, mapdef::width, liv::Wis, diamondslots::x, obj::x, path_data::x, diamondslots::y, obj::y, and path_data::y.

Referenced by monster_move(), and move_to().

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◆ monster_dist_att()

static int monster_dist_att	(	int	dir,
		object *	enemy,
		object *	part,
		rv_vector *	rv
	)

static

Return the direction the monster should move or look to attack an enemy.

Parameters

dir	direction the monster is currently facing.
enemy	target of the monster.
part	monster's part we're considering.
rv	vector to enemy.

Returns: direction to go into.

Definition at line 1999 of file monster.c.

References absdir(), rv_vector::distance, and monster_can_hit().

Referenced by monster_disthit_att(), and monster_move().

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◆ monster_disthit_att()

static int monster_disthit_att	(	int	dir,
		object *	ob,
		object *	enemy,
		object *	part,
		rv_vector *	rv
	)

static

Return the next direction the monster should move for a specific movement type.

Parameters

dir	direction the monster is currently facing.
ob	unused.
enemy	target of the monster.
part	monster's part we're considering.
rv	vector to enemy.

Returns: direction to go into.

Definition at line 2076 of file monster.c.

References absdir(), monster_dist_att(), and guildjoin::ob.

Referenced by monster_move().

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◆ monster_do_living()

void monster_do_living ( object * op )

For a monster, regenerate hp and sp, potentially clear scared status.

Parameters

op	monster. Must have FLAG_MONSTER set.

Definition at line 688 of file monster.c.

References CLEAR_FLAG, FABS, FLAG_MONSTER, FLAG_RUN_AWAY, FLAG_SCARED, make_face_from_files::int, MIN, give::op, QUERY_FLAG, and RANDOM.

Referenced by CRECombatSimulator::fight(), monster_move(), and monsterFight().

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◆ monster_do_say()

void monster_do_say	(	const mapstruct *	map,
		const char *	message
	)

Output a NPC message on a map.

Parameters

map	where to talk to.
message	what to say.

Definition at line 2237 of file monster.c.

References ext_info_map(), disinfect::map, diamondslots::message, MSG_TYPE_DIALOG, MSG_TYPE_DIALOG_NPC, NDI_NAVY, and NDI_UNIQUE.

Referenced by monster_communicate(), and monster_npc_say().

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◆ monster_do_talk_npc()

static int monster_do_talk_npc	(	object *	npc,
		talk_info *	info
	)

static

Checks the messages of a NPC for a matching text. Will not call plugin events. Called by monster_talk_to_npc().

Parameters

npc	object that gets a chance to reply.
info	message information.

Returns: 1 if npc talked, 0 else.

Definition at line 2393 of file monster.c.

References add_string(), ext_info_map(), get_dialog_message(), MAGIC_EAR, MAX_NPC, MAX_REPLIES, talk_info::message, diamondslots::message, talk_info::message_type, monster_format_say(), MSG_TYPE_DIALOG, MSG_TYPE_DIALOG_MAGIC_EAR, NDI_DELAYED, NDI_NAVY, NDI_UNIQUE, npc_dialog::npc, talk_info::npc_msg_count, talk_info::npc_msgs, object_set_value(), talk_info::replies, talk_info::replies_count, talk_info::replies_words, say::reply, stringbuffer_finish_shared(), talk_info::text, use_trigger(), and autojail::value.

Referenced by monster_talk_to_npc().

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◆ monster_find_enemy()

static object* monster_find_enemy	(	object *	npc,
		rv_vector *	rv
	)

static

Tries to find an enmy for npc. We pass the range vector since our caller will find the information useful. Currently, only monster_move() calls this function. Fix function so that we always make calls to get_rangevector if we have a valid target - function as not doing so in many cases.

Parameters

	npc	monster we're considering.
[out]	rv	vector that will contain how to reach the target. Must not be NULL.

Returns: enemy npc wants to attack, or NULL if nont found.

Definition at line 217 of file monster.c.

References CLEAR_FLAG, obj::count, FLAG_BERSERK, FLAG_FRIENDLY, FLAG_NEUTRAL, FLAG_SLEEP, FLAG_UNAGGRESSIVE, get_nearest_player(), get_rangevector(), HI4, monster_check_enemy(), monster_find_nearest_living_creature(), npc_dialog::npc, object_set_enemy(), on_same_map(), PETMOVE, pets_get_enemy(), PLAYER, QUERY_FLAG, Ice::tmp, and obj::type.

Referenced by monster_move().

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◆ monster_find_nearest_living_creature()

object* monster_find_nearest_living_creature	(	object *	npc,
		object *	exclude
	)

Returns the nearest living creature (monster or generator). Modified to deal with tiled maps properly. Also fixed logic so that monsters in the lower directions were more likely to be skipped - instead of just skipping the 'start' number of direction, revisit them after looking at all the other spaces.

Note that being this may skip some number of spaces, it will not necessarily find the nearest living creature - it basically chooses one from within a 3 space radius, and since it skips the first few directions, it could very well choose something 3 spaces away even though something directly north is closer.

This function is map tile aware.

Parameters

npc	monster to consider
exclude	don't attack this object, for instance the npc's owner

Returns: living creature, or NULL if none found.

Definition at line 155 of file monster.c.

References can_see_monsterP(), FLAG_GENERATOR, FLAG_MONSTER, FOR_MAP_FINISH, FOR_MAP_PREPARE, freearr_x, freearr_y, get_map_flags(), get_search_arr(), llevDebug, LOG(), m, npc_dialog::npc, P_IS_ALIVE, P_OUT_OF_MAP, PLAYER, QUERY_FLAG, SIZEOFFREE, and Ice::tmp.

Referenced by monster_find_enemy(), and pets_get_enemy().

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◆ monster_find_throw_ob()

object* monster_find_throw_ob ( object * op )

Find an item for the monster to throw. Modeled on find_throw_ob(). This is probably overly simplistic as it is now - We want monsters to throw things like chairs and other pieces of furniture, even if they are not good throwable objects. Probably better to have the monster throw a throwable object first, then throw any non equipped weapon.

Parameters

op	monster to find an item to throw for.

Returns: item, NULL if none suitable.

Definition at line 2483 of file monster.c.

References FLAG_APPLIED, FLAG_IS_THROWN, FOR_INV_FINISH, FOR_INV_PREPARE, llevDebug, LOG(), MAX_BUF, give::op, QUERY_FLAG, query_name(), and Ice::tmp.

Referenced by skill_throw().

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◆ monster_format_say()

static StringBuffer* monster_format_say	(	const object *	npc,
		const char *	message
	)

static

Format an NPC message.

Parameters

npc	who is talking.
message	what is being said.

Returns: new StringBuffer containing the text.

Definition at line 2248 of file monster.c.

References buf, MAX_BUF, diamondslots::message, give::name, npc_dialog::npc, query_name(), stringbuffer_append_printf(), and stringbuffer_new().

Referenced by monster_do_talk_npc(), and monster_npc_say().

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◆ monster_get_armour_quality()

static int monster_get_armour_quality ( const object * item )

static

Returns the "quality" value of an armour of a monster. Higher quality values are considered better.

Parameters

item	the item to check

Returns: the quality value

Definition at line 1638 of file monster.c.

References ATNR_PHYSICAL.

Referenced by monster_check_good_armour().

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◆ monster_get_weapon_quality()

static int monster_get_weapon_quality ( const object * item )

static

Returns the "quality" value of a weapon of a monster. Higher quality values are considered better.

Parameters

item	the item to check

Returns: the quality value

Definition at line 1586 of file monster.c.

References get_attr_value(), and NUM_STATS.

Referenced by monster_check_good_weapon().

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◆ monster_hitrun_att()

static int monster_hitrun_att	(	int	dir,
		object *	ob
	)

static

Return the next direction the monster should move for a specific movement type.

Parameters

dir	direction the monster is currently facing.
ob	unused.

Returns: direction to go into.

Definition at line 2033 of file monster.c.

References absdir(), and guildjoin::ob.

Referenced by monster_move().

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◆ monster_move()

int monster_move ( object * op )

Main monster processing routine.

Will regenerate spell points, hit points. Moves the monster, handle attack, item applying, pickup, ...

Parameters

op	monster to process.

Returns: 1 if the object has been freed, otherwise 0.

Definition at line 823 of file monster.c.

References absdir(), add_refcount(), ALLRUN, animate_object(), obj::attacked_by, obj::attacked_by_count, CLEAR_FLAG, rv_vector::direction, DISTATT, DISTHIT, do_hidden_move(), FABS, obj::face, FLAG_BLIND, FLAG_CAST_SPELL, FLAG_CONFUSED, FLAG_FREED, FLAG_FRIENDLY, FLAG_NO_ATTACK, FLAG_ONLY_ATTACK, FLAG_PARALYZED, FLAG_READY_BOW, FLAG_READY_RANGE, FLAG_READY_SCROLL, FLAG_READY_SKILL, FLAG_REMOVED, FLAG_RUN_AWAY, FLAG_SCARED, FLAG_SEE_IN_DARK, FLAG_SEE_INVISIBLE, FLAG_SLEEP, FLAG_STAND_STILL, free_string(), get_nearest_player(), get_randomized_dir(), get_rangevector(), HI4, HITRUN, llevDebug, llevMonster, LO4, LOG(), m, obj::map, MIN_ACTIVE_SPEED, monster_apply_below(), monster_can_hit(), monster_cast_spell(), monster_check_pickup(), monster_check_wakeup(), monster_compute_path(), monster_dist_att(), monster_disthit_att(), monster_do_living(), monster_find_enemy(), monster_hitrun_att(), monster_move_no_enemy(), monster_move_randomly(), monster_run_att(), monster_use_bow(), monster_use_range(), monster_use_scroll(), monster_use_skill(), monster_wait_att(), monster_wait_att2(), move_object(), obj::name, object_free_drop_inventory(), object_get_owner(), object_remove(), object_set_enemy(), on_same_map(), give::op, rv_vector::part, mapdef::path, PETMOVE, pets_follow_owner(), QUERY_FLAG, RANDOM, remove_friendly_object(), RUNATT, RUSH, skill_attack(), obj::stats, WAIT2, WAITATT, liv::wc, obj::x, and obj::y.

Referenced by process_object().

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◆ monster_move_no_enemy()

static int monster_move_no_enemy ( object * op )

static

Makes a monster without any enemy move.

Parameters

op	monster, must have FLAG_MONSTER set.

Returns: 1 if monster was removed, 0 else.

Definition at line 751 of file monster.c.

References CIRCLE1, CIRCLE2, FLAG_MONSTER, FLAG_ONLY_ATTACK, FLAG_RANDOM_MOVE, FLAG_STAND_STILL, HI4, monster_circ1_move(), monster_circ2_move(), monster_move_randomly(), monster_pace2_moveh(), monster_pace2_movev(), monster_pace_moveh(), monster_pace_movev(), monster_rand_move(), object_free_drop_inventory(), object_remove(), give::op, PACEH, PACEH2, PACEV, PACEV2, PETMOVE, pets_move(), QUERY_FLAG, RANDO, and RANDO2.

Referenced by monster_move().

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◆ monster_move_randomly()

static int monster_move_randomly ( object * op )

static

Handles random object movement. If the monster was talked to lately, then don't move and reduce wait time.

Parameters

op	object to move.

Returns: 1 if moved or should wait (talked to), 0 else.

Definition at line 350 of file monster.c.

References FLAG_UNAGGRESSIVE, move_object(), object_get_value(), object_set_value(), give::op, QUERY_FLAG, RANDOM, sstring, and autojail::value.

Referenced by monster_move(), and monster_move_no_enemy().

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◆ monster_npc_call_help()

void monster_npc_call_help ( object * op )

A monster calls for help against its enemy.

Parameters

op	monster calling for help.

Definition at line 1972 of file monster.c.

References FLAG_ALIVE, FLAG_UNAGGRESSIVE, FOR_MAP_FINISH, FOR_MAP_PREPARE, get_map_flags(), m, npc_dialog::npc, object_set_enemy(), give::op, P_IS_ALIVE, P_OUT_OF_MAP, QUERY_FLAG, diamondslots::x, and diamondslots::y.

Referenced by alchemy_failure_effect(), attack_ob_simple(), attempt_steal(), and hit_player().

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◆ monster_npc_say()

void monster_npc_say	(	object *	npc,
		const char *	cp
	)

Simple function to have some NPC say something.

Parameters

npc	who should say something.
cp	what is being said.

Definition at line 2438 of file monster.c.

References buf, diamondslots::message, monster_do_say(), monster_format_say(), npc_dialog::npc, and stringbuffer_finish().

Referenced by cfapi_object_say().

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◆ monster_pace2_moveh()

static void monster_pace2_moveh ( object * ob )

static

Move the monster in a specified movement pattern.

Parameters

ob monster.

Definition at line 2172 of file monster.c.

References move_object(), guildjoin::ob, and nlohmann::detail::void().

Referenced by monster_move_no_enemy().

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◆ monster_pace2_movev()

static void monster_pace2_movev ( object * ob )

static

Move the monster in a specified movement pattern.

Parameters

ob monster.

Definition at line 2157 of file monster.c.

References move_object(), guildjoin::ob, and nlohmann::detail::void().

Referenced by monster_move_no_enemy().

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◆ monster_pace_moveh()

static void monster_pace_moveh ( object * ob )

static

Move the monster in a specified movement pattern.

Parameters

ob monster.

Definition at line 2144 of file monster.c.

References move_object(), guildjoin::ob, and nlohmann::detail::void().

Referenced by monster_move_no_enemy().

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◆ monster_pace_movev()

static void monster_pace_movev ( object * ob )

static

Move the monster in a specified movement pattern.

Parameters

ob monster.

Definition at line 2131 of file monster.c.

References move_object(), guildjoin::ob, and nlohmann::detail::void().

Referenced by monster_move_no_enemy().

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◆ monster_rand_move()

static void monster_rand_move ( object * ob )

static

Move the monster in a specified movement pattern.

Parameters

ob monster.

Definition at line 2187 of file monster.c.

References move_object(), guildjoin::ob, and RANDOM.

Referenced by monster_move_no_enemy().

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◆ monster_run_att()

static int monster_run_att	(	int	dir,
		object *	ob,
		object *	enemy,
		object *	part,
		rv_vector *	rv
	)

static

Return the next direction the monster should move for a specific movement type.

Parameters

dir	direction the monster is currently facing.
ob	unused.
enemy	target of the monster.
part	monster's part we're considering.
rv	vector to enemy.

Returns: direction to go into.

Definition at line 2018 of file monster.c.

References absdir(), monster_can_hit(), and guildjoin::ob.

Referenced by monster_move().

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◆ monster_should_cast_spell()

static int monster_should_cast_spell ( object * spell_ob )

static

Checks if a monster should cast a spell.

Note that this function does not check to see if the monster can in fact cast the spell (sp dependencies and what not.) That is because this function is also sued to see if the monster should use spell items (rod/horn/wand/scroll).

Note that there are certainly other offensive spells that could be included, but I decided to leave out the spells that may kill more monsters than players (eg, disease).

This could be a lot smarter - if there are few monsters around, then disease might not be as bad. Likewise, if the monster is damaged, the right type of healing spell could be useful.

Parameters

spell_ob spell considered.

Returns: 1 is monster should cast spell sp, 0 else.

Todo:: improve logic, take enemy into consideration.

Definition at line 1148 of file monster.c.

References SP_BOLT, SP_BOMB, SP_BULLET, SP_CONE, SP_EXPLOSION, SP_INVISIBLE, SP_MAGIC_MISSILE, SP_MAGIC_WALL, SP_MOVING_BALL, SP_SMITE, SP_SUMMON_GOLEM, SP_SUMMON_MONSTER, SP_SWARM, and obj::subtype.

Referenced by monster_check_apply(), monster_choose_random_spell(), and monster_use_scroll().

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◆ monster_stand_in_light()

int monster_stand_in_light ( object * op )

Determine if op stands in a lighted square. This is not a very intellegent algorithm. For one thing, we ignore los here, SO it is possible for a bright light to illuminate a player on the other side of a wall (!).

Parameters

op	who to check.

Returns: 1 if op is in lighe, 0 else.

Definition at line 2662 of file monster.c.

References get_map_flags(), GET_MAP_LIGHT, isqrt(), m, MAX_LIGHT_RADII, give::op, P_OUT_OF_MAP, diamondslots::x, guild_entry::x1, diamondslots::y, and guild_entry::y1.

Referenced by adj_attackroll(), monster_can_detect_enemy(), monster_can_see_enemy(), and monster_check_wakeup().

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◆ monster_talk_to_npc()

static int monster_talk_to_npc	(	object *	npc,
		talk_info *	info
	)

static

Give an object the chance to handle something being said. Plugin hooks will be called, including in the NPC's inventory.

Parameters

npc	object to try to talk to. Can be an NPC or a MAGIC_EAR.
info	message information.

Returns: 0 if text was handled by a plugin or not handled, 1 if handled internally by the server.

Definition at line 2455 of file monster.c.

References events_execute_object_say(), FOR_INV_FINISH, FOR_INV_PREPARE, monster_do_talk_npc(), npc_dialog::npc, and talk_info::who.

Referenced by monster_communicate().

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◆ monster_use_bow()

static int monster_use_bow	(	object *	head,
		object *	part,
		object *	pl,
		int	dir
	)

static

Tries to make a (part of a) monster fire a bow.

Handles confusion effect.

Parameters

head	head of the monster.
part	part of the monster that we use to cast.
pl	target.
dir	direction to cast.

Returns: 1 if monster fired something, 0 else.

Definition at line 1529 of file monster.c.

References rv_vector::direction, rv_vector::distance, rv_vector::distance_x, rv_vector::distance_y, fire_bow(), FLAG_CONFUSED, FLAG_FRIENDLY, freearr_x, freearr_y, get_map_from_coord(), GET_MAP_MOVE_BLOCK, get_randomized_dir(), get_rangevector(), llevError, LOG(), disinfect::map, obj::map, MOVE_FLY_LOW, object_get_owner(), QUERY_FLAG, diamondslots::x, obj::x, diamondslots::y, and obj::y.

Referenced by monster_move().

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◆ monster_use_range()

static int monster_use_range	(	object *	head,
		object *	part,
		object *	pl,
		int	dir
	)

static

Monster will use a ranged attack (ROD, WAND, ...).

Parameters

head	head of the monster.
part	part of the monster that can do a range attack.
pl	target.
dir	direction to fire.

Returns: 1 if monster casted a spell, 0 else.

Definition at line 1453 of file monster.c.

References cast_spell(), CLEAR_FLAG, obj::count, dirdiff(), rv_vector::direction, drain_rod_charge(), drain_wand_charge(), FLAG_CONFUSED, FLAG_FRIENDLY, FLAG_READY_RANGE, FOR_INV_FINISH, FOR_INV_PREPARE, get_randomized_dir(), get_rangevector(), obj::inv, llevError, LOG(), MAX, obj::name, object_get_owner(), path_to_player(), QUERY_FLAG, ROD, and WAND.

Referenced by monster_move().

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◆ monster_use_scroll()

static int monster_use_scroll	(	object *	head,
		object *	part,
		object *	pl,
		int	dir
	)

static

Tries to make a (part of a) monster apply a spell.

Parameters

head	head of the monster.
part	part of the monster that we use to cast.
pl	target.
dir	direction to cast.

Returns: 1 if monster applied a scroll, 0 else.

Definition at line 1312 of file monster.c.

References animate_object(), obj::animation, apply_manual(), CLEAR_FLAG, dirdiff(), obj::direction, rv_vector::direction, obj::facing, FLAG_CONFUSED, FLAG_FRIENDLY, FLAG_READY_SCROLL, FOR_INV_FINISH, FOR_INV_PREPARE, get_randomized_dir(), get_rangevector(), obj::inv, monster_should_cast_spell(), object_get_owner(), path_to_player(), QUERY_FLAG, obj::range, SCROLL, Ice::tmp, and guild_entry::x1.

Referenced by monster_move().

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◆ monster_use_skill()

static int monster_use_skill	(	object *	head,
		object *	part,
		object *	pl,
		int	dir
	)

static

A monster attempts using a skill. Implemented 95-04-28 to allow monster skill use. Note that monsters do not need the skills SK_MELEE_WEAPON and SK_MISSILE_WEAPON to make those respective attacks, if we required that we would drastically increase the memory requirements of CF!!

The skills we are treating here are all but those. -b.t.

At the moment this is only useful for throwing, perhaps for stealing. TODO: This should be more integrated in the game. -MT, 25.11.01

Will switch between at most 2 skills.

Parameters

head	head of the monster.
part	part of the monster that may use a skill.
pl	target.
dir	direction to cast.

Returns: 1 if monster used a skill, 0 else.

Todo:: improve skill logic? Fix comments.

Definition at line 1396 of file monster.c.

References obj::chosen_skill, CLEAR_FLAG, obj::count, dirdiff(), rv_vector::direction, do_skill(), FLAG_CONFUSED, FLAG_FRIENDLY, FLAG_READY_SKILL, FOR_INV_FINISH, FOR_INV_PREPARE, is_valid_types_gen::found, get_randomized_dir(), get_rangevector(), llevDebug, LOG(), obj::name, object_get_owner(), path_to_player(), QUERY_FLAG, and SKILL.

Referenced by monster_move().

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◆ monster_wait_att()

static int monster_wait_att	(	int	dir,
		object *	ob,
		object *	enemy,
		object *	part,
		rv_vector *	rv
	)

static

Return the next direction the monster should move for a specific movement type.

Parameters

dir	direction the monster is currently facing.
ob	unused.
enemy	target of the monster.
part	monster's part we're considering.
rv	vector to enemy.

Returns: direction to go into.

Definition at line 2051 of file monster.c.

References absdir(), monster_can_hit(), and guildjoin::ob.

Referenced by monster_move().

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◆ monster_wait_att2()

static int monster_wait_att2	(	int	dir,
		rv_vector *	rv
	)

static

Return the next direction the monster should move for a specific movement type.

Parameters

dir	direction the monster is currently facing.
rv	vector to enemy.

Returns: direction to go into.

Definition at line 2095 of file monster.c.

References absdir(), and rv_vector::distance.

Referenced by monster_move().

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◆ path_measure_func()

int path_measure_func ( const void * ob )

Function to retrieve the measurement the minheap will organize by.

Parameters

ob	The path_data object we with to observe, stored as a void *.

Returns: The estimated distance to fulfill the shortest path.

Definition at line 406 of file monster.c.

References path_data::distance, path_data::heuristic_dist, and guildjoin::ob.

Referenced by monster_compute_path().

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Data Structures

Macros

Functions

Detailed Description

Macro Definition Documentation

◆ MAX_EXPLORE

◆ MAX_KNOWN_SPELLS

◆ MIN_MON_RADIUS

Function Documentation

◆ estimate_distance()

◆ get_reply_text_other()

◆ get_reply_text_own()

◆ monster_apply_below()

◆ monster_can_detect_enemy()

◆ monster_can_hit()

◆ monster_can_pick()

◆ monster_can_see_enemy()

◆ monster_cast_spell()

◆ monster_check_apply()

◆ monster_check_apply_all()

◆ monster_check_doors()

◆ monster_check_earthwalls()

◆ monster_check_enemy()

◆ monster_check_good_armour()

◆ monster_check_good_weapon()

◆ monster_check_pickup()

◆ monster_check_wakeup()

◆ monster_choose_random_spell()

◆ monster_circ1_move()

◆ monster_circ2_move()

◆ monster_communicate()

◆ monster_compute_path()

◆ monster_dist_att()

◆ monster_disthit_att()

◆ monster_do_living()

◆ monster_do_say()

◆ monster_do_talk_npc()

◆ monster_find_enemy()

◆ monster_find_nearest_living_creature()

◆ monster_find_throw_ob()

◆ monster_format_say()

◆ monster_get_armour_quality()

◆ monster_get_weapon_quality()

◆ monster_hitrun_att()

◆ monster_move()

◆ monster_move_no_enemy()

◆ monster_move_randomly()

◆ monster_npc_call_help()

◆ monster_npc_say()

◆ monster_pace2_moveh()

◆ monster_pace2_movev()

◆ monster_pace_moveh()

◆ monster_pace_movev()

◆ monster_rand_move()

◆ monster_run_att()

◆ monster_should_cast_spell()

◆ monster_stand_in_light()

◆ monster_talk_to_npc()

◆ monster_use_bow()

◆ monster_use_range()

◆ monster_use_scroll()

◆ monster_use_skill()

◆ monster_wait_att()

◆ monster_wait_att2()

◆ path_measure_func()