spell_attack.cpp File Reference

#include "global.h"
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "object.h"
#include "living.h"
#include "sproto.h"
#include "spells.h"
#include "sounds.h"

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Functions
int	cast_cause_disease (object *op, object *caster, object *spell, int dir)
	Let's try to infect something. More...
int	cast_cone (object *op, object *caster, int dir, object *spell)
	Casts a cone spell. More...
int	cast_curse (object *op, object *caster, object *spell_ob, int dir)
	Curse an object, reducing its statistics. More...
int	cast_destruction (object *op, object *caster, object *spell_ob)
	Hit all monsters around the caster. More...
int	cast_light (object *op, object *caster, object *spell, int dir)
	Illuminates something on a map, or try to blind a living thing. More...
int	cast_smite_spell (object *op, object *caster, int dir, object *spell)
	The priest points to a creature and causes a 'godly curse' to descend. More...
void	check_bullet (object *op)
	Checks to see what op should do, given the space it is on (eg, explode, damage player, etc). More...
void	cone_drop (object *op)
	Drops an object based on what is in the cone's "other_arch". More...
int	create_bomb (object *op, object *caster, int dir, object *spell)
	Create a bomb. More...
void	explode_bullet (object *op)
	Causes an object to explode, eg, a firebullet, poison cloud ball, etc. More...
int	fire_bolt (object *op, object *caster, int dir, object *spob)
	Cast a bolt-like spell. More...
int	fire_swarm (object *op, object *caster, object *spell, int dir)
	The following routine creates a swarm of objects. More...
static object *	get_pointed_target (object *op, int dir, int range, int type)
	Returns the pointer to the first monster in the direction which is pointed to by op. More...
static int	make_object_glow (object *op, int radius, int time)
	Makes living objects glow. More...
int	mood_change (object *op, object *caster, object *spell)
	This covers the various spells that change the moods of monsters - makes them angry, peaceful, friendly, etc. More...

Detailed Description

This file contains all the spell attack code. Grouping this code together should hopefully make it easier to find the relevant bits of code.

Todo:

put parameters in the same order, use same name.

Definition in file spell_attack.cpp.

Function Documentation

cast_cause_disease()

int cast_cause_disease	(	object *	op,
		object *	caster,
		object *	spell,
		int	dir
	)

Let's try to infect something.

Parameters

op	who is casting.
caster	what object is casting.
spell	spell object to cast.
dir	cast direction.

Return values

0	no one caught anything.
1	at least one living was affected.

Definition at line 1207 of file spell_attack.cpp.

References living::ac, ARCH_DETECT_MAGIC, arch_to_object(), caster_level(), create_archetype(), living::dam, draw_ext_info, draw_ext_info_format(), living::exp, object::facing, FLAG_MONSTER, FOR_MAP_FINISH, FOR_MAP_PREPARE, freearr_x, freearr_y, get_map_flags(), GET_MAP_MOVE_BLOCK, HEAD, living::hp, infect_object(), object::last_eat, object::last_sp, object::level, m, object::magic, object::map, living::maxgrace, living::maxhp, living::maxsp, MOVE_FLY_LOW, MSG_TYPE_SPELL, MSG_TYPE_SPELL_FAILURE, MSG_TYPE_SPELL_SUCCESS, object::name, NDI_UNIQUE, object_free_drop_inventory(), object_insert_in_map_at(), object_set_owner(), P_IS_ALIVE, P_OUT_OF_MAP, PLAYER, QUERY_FLAG, set_spell_skill(), living::sp, SP_level_dam_adjust(), SP_level_duration_adjust(), SP_level_range_adjust(), spell, object::stats, object::type, living::wc, object::x, and object::y.

Referenced by cast_spell().

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cast_cone()

int cast_cone	(	object *	op,
		object *	caster,
		int	dir,
		object *	spell
	)

Casts a cone spell.

Parameters

op	person firing the object.
caster	object casting the spell.
dir	direction to fire in.
spell	spell that is being fired. It uses other_arch for the archetype to fire.

Return values

0	couldn't cast.
1	successful cast.

Definition at line 297 of file spell_attack.cpp.

References arch_to_object(), AT_FEAR, AT_GODPOWER, AT_HOLYWORD, AT_TURN_UNDEAD, object::attacktype, caster_level(), living::Cha, cone_drop(), object::count, d, living::dam, draw_ext_info, object::duration, FLAG_UNDEAD, freearr_x, freearr_y, get_fear_bonus(), get_map_flags(), GET_MAP_MOVE_BLOCK, get_turn_bonus(), object::level, llevDebug, LOG(), m, object::map, living::maxhp, MOVE_FLY_LOW, object::move_on, object::move_type, MSG_TYPE_SPELL, MSG_TYPE_SPELL_ERROR, NDI_UNIQUE, object_insert_in_map_at(), object_set_owner(), object::other_arch, P_OUT_OF_MAP, PLAYER, QUERY_FLAG, object::range, RUNE, set_spell_skill(), living::sp, SP_level_dam_adjust(), SP_level_duration_adjust(), SP_level_range_adjust(), spell, object::stats, tailor_god_spell(), object::type, living::Wis, object::x, and object::y.

Referenced by cast_spell(), cast_wonder(), prayer_failure(), and spell_failure().

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cast_curse()

int cast_curse	(	object *	op,
		object *	caster,
		object *	spell_ob,
		int	dir
	)

Curse an object, reducing its statistics.

Parameters

op	who is casting.
caster	what object is casting.
spell_ob	spell object to cast.
dir	cast direction.

Return values

0	curse had no effect.
1	something was cursed.

Definition at line 800 of file spell_attack.cpp.

References living::ac, add_refcount(), arch_to_object(), change_abil(), create_archetype(), determine_god(), object::direction, draw_ext_info, draw_ext_info_format(), object::duration, find_god(), fix_object(), FLAG_APPLIED, FOR_INV_FINISH, FOR_INV_PREPARE, FORCE, FORCE_CHANGE_ABILITY, FORCE_NAME, free_string(), get_pointed_target(), INS_ON_TOP, object::last_grace, object::map, MSG_TYPE_SPELL, MSG_TYPE_SPELL_FAILURE, MSG_TYPE_SPELL_SUCCESS, MSG_TYPE_VICTIM, MSG_TYPE_VICTIM_SPELL, object::name, object::name_pl, NDI_UNIQUE, object_insert_in_map_at(), object_insert_in_ob(), object::other_arch, object::path_denied, object::path_repelled, PLAYER, object::race, object::range, SET_FLAG, SP_level_duration_adjust(), object::speed, object::speed_left, SPELL_GRACE, object::stats, object::subtype, object::type, living::wc, object::x, and object::y.

Referenced by cast_spell().

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cast_destruction()

int cast_destruction	(	object *	op,
		object *	caster,
		object *	spell_ob
	)

Hit all monsters around the caster.

Parameters

op	who is casting.
caster	what object is casting.
spell_ob	spell object to cast.

Returns

1.

Definition at line 707 of file spell_attack.cpp.

References arch_to_object(), ATNR_MAGIC, object::attacktype, change_skill(), living::dam, object::duration, find_skill_by_name(), FLAG_ALIVE, FLAG_FRIENDLY, FOR_MAP_FINISH, FOR_MAP_PREPARE, friendly, get_map_flags(), HEAD, hit_player(), m, make_object_glow(), object::map, object_insert_in_map_at(), object::other_arch, P_IS_ALIVE, P_OUT_OF_MAP, PLAYER, QUERY_FLAG, object::range, object::resist, object::skill, skill, SP_DESTRUCTION, SP_FAERY_FIRE, SP_level_dam_adjust(), SP_level_duration_adjust(), SP_level_range_adjust(), object::stats, object::subtype, object::type, object::x, and object::y.

Referenced by cast_spell().

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cast_light()

int cast_light	(	object *	op,
		object *	caster,
		object *	spell,
		int	dir
	)

Illuminates something on a map, or try to blind a living thing.

See the spells documentation file for why this is its own function.

Parameters

op	who is casting.
caster	what object is casting.
spell	spell object to cast.
dir	cast direction.

Return values

0	no effect.
1	lighting successful.

Definition at line 1136 of file spell_attack.cpp.

References arch_to_object(), draw_ext_info, FLAG_MONSTER, freearr_x, freearr_y, get_map_flags(), GET_MAP_MOVE_BLOCK, hit_player(), llevError, LOG(), m, object::map, map_find_by_flag(), MAX_LIGHT_RADII, MSG_TYPE_SPELL, MSG_TYPE_SPELL_ERROR, MSG_TYPE_SPELL_FAILURE, NDI_UNIQUE, OB_TYPE_MOVE_BLOCK, object_insert_in_map_at(), P_IS_ALIVE, P_OUT_OF_MAP, SP_level_dam_adjust(), SP_level_duration_adjust(), SP_level_range_adjust(), spell, object::x, and object::y.

Referenced by cast_spell().

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cast_smite_spell()

int cast_smite_spell	(	object *	op,
		object *	caster,
		int	dir,
		object *	spell
	)

The priest points to a creature and causes a 'godly curse' to descend.

Parameters

op	who is casting.
caster	what object is casting.
dir	cast direction.
spell	spell object to cast.

Return values

0	spell had no effect.
1	something was affected by the spell.

Definition at line 546 of file spell_attack.cpp.

References arch_to_object(), AT_DEATH, AT_GODPOWER, AT_HOLYWORD, object::attacktype, caster_level(), living::dam, determine_god(), draw_ext_info, draw_ext_info_format(), object::duration, find_god(), FLAG_REFL_SPELL, FLAG_UNDEAD, get_pointed_target(), living::hp, HUGE_BUF, object::level, object::map, living::maxhp, MSG_TYPE_SPELL, MSG_TYPE_SPELL_FAILURE, MSG_TYPE_SPELL_SUCCESS, object::name, NDI_UNIQUE, object_free_drop_inventory(), object_insert_in_map_at(), object_set_owner(), PREFER_LOW, QUERY_FLAG, query_name(), object::race, random_roll(), object::range, set_spell_skill(), SP_EXPLOSION, SP_level_dam_adjust(), SP_level_range_adjust(), spell, SPELL_EFFECT, SPELL_GRACE, SPELL_MANA, object::stats, object::subtype, tailor_god_spell(), object::title, object::type, object::x, and object::y.

Referenced by cast_spell().

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check_bullet()

void check_bullet

(

object *

op

)

Checks to see what op should do, given the space it is on (eg, explode, damage player, etc).

Parameters

op	object to check.

Definition at line 217 of file spell_attack.cpp.

References object::attacktype, object::count, living::dam, explode_bullet(), FLAG_ALIVE, FLAG_REMOVED, FOR_MAP_FINISH, FOR_MAP_PREPARE, get_map_flags(), GET_MAP_MOVE_BLOCK, hit_player(), m, object::map, OB_TYPE_MOVE_BLOCK, object_free_drop_inventory(), object_remove(), object_was_destroyed, object::other_arch, P_IS_ALIVE, QUERY_FLAG, object::stats, object::x, and object::y.

Referenced by fire_arch_from_position(), and move_bullet().

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cone_drop()

void cone_drop

(

object *

op

)

Drops an object based on what is in the cone's "other_arch".

Parameters

op	what object should drop.

Definition at line 265 of file spell_attack.cpp.

References add_refcount(), arch_to_object(), free_string(), object::level, object::map, object_get_owner(), object_insert_in_map_at(), object_set_owner(), object::other_arch, object::skill, object::x, and object::y.

Referenced by cast_cone(), and move_cone().

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create_bomb()

int create_bomb	(	object *	op,
		object *	caster,
		int	dir,
		object *	spell
	)

Create a bomb.

Parameters

op	who is casting.
caster	what object is casting.
dir	cast direction.
spell	spell object to cast.

Return values

0	no bomb was placed.
1	bomb was placed on map.

Definition at line 447 of file spell_attack.cpp.

References arch_to_object(), object::attacktype, living::dam, draw_ext_info, object::duration, freearr_x, freearr_y, get_map_flags(), GET_MAP_MOVE_BLOCK, m, object::map, MOVE_WALK, MSG_TYPE_SPELL, MSG_TYPE_SPELL_ERROR, NDI_UNIQUE, object_insert_in_map_at(), object_set_owner(), P_OUT_OF_MAP, object::range, set_spell_skill(), SP_level_dam_adjust(), SP_level_duration_adjust(), SP_level_range_adjust(), spell, object::stats, object::x, and object::y.

Referenced by cast_spell().

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explode_bullet()

void explode_bullet

(

object *

op

)

Causes an object to explode, eg, a firebullet, poison cloud ball, etc.

Parameters

op	the object to explode.

Definition at line 121 of file spell_attack.cpp.

References add_refcount(), arch_to_object(), AT_GODPOWER, AT_HOLYWORD, AT_MAGIC, object::attacktype, object::count, living::dam, object::dam_modifier, object::direction, object::duration, object::env, env, FREE_AND_CLEAR_STR, hit_map(), living::hp, INS_NO_MERGE, INS_NO_WALK_ON, llevError, LOG(), object::map, living::maxhp, object::move_on, object_copy_owner(), object_free_drop_inventory(), object_get_env_recursive(), object_get_owner(), object_insert_in_map_at(), object_remove(), object_was_destroyed, object::other_arch, out_of_map(), object::range, object::skill, living::sp, SP_BOMB, SP_CONE, SPELL_EFFECT, object::stats, object::subtype, tailor_god_spell(), object::type, object::x, and object::y.

Referenced by animate_bomb(), check_bullet(), and move_bullet().

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fire_bolt()

int fire_bolt	(	object *	op,
		object *	caster,
		int	dir,
		object *	spob
	)

Cast a bolt-like spell.

We remove the magic flag - that can be derived from spob->attacktype. This function sets up the appropriate owner and skill pointers.

Parameters

op	who is casting the spell.
caster	what object is casting the spell (rod, ...).
dir	firing direction.
spob	spell object for the bolt.

Return values

0	no bolt could be fired.
1	bolt was fired (but may have been destroyed already).

Definition at line 61 of file spell_attack.cpp.

References absdir(), add_refcount(), arch_to_object(), object::attacktype, living::Con, living::dam, living::Dex, object::direction, DIRX, DIRY, object::duration, FLAG_REFLECTING, get_map_flags(), GET_MAP_MOVE_BLOCK, object::map, ob_process(), OB_TYPE_MOVE_BLOCK, object_free_drop_inventory(), object_insert_in_map_at(), object_set_owner(), object_update_turn_face(), object::other_arch, P_OUT_OF_MAP, QUERY_FLAG, object::range, set_spell_skill(), object::slaying, SP_level_dam_adjust(), SP_level_duration_adjust(), SP_level_range_adjust(), object::stats, object::x, and object::y.

Referenced by cast_spell().

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fire_swarm()

int fire_swarm	(	object *	op,
		object *	caster,
		object *	spell,
		int	dir
	)

The following routine creates a swarm of objects.

It actually sets up a specific swarm object, which then fires off all the parts of the swarm.

Parameters

op	who is casting.
caster	what object is casting.
spell	spell object to cast.
dir	cast direction.

Return values

0	nothing happened.
1	swarm was placed on map.

Definition at line 1088 of file spell_attack.cpp.

References arch_to_object(), AT_GODPOWER, AT_HOLYWORD, object::attacktype, caster_level(), create_archetype(), die_roll(), object::direction, object::duration, object::invisible, object::level, object::map, object_insert_in_map_at(), object_set_owner(), PREFER_HIGH, set_spell_skill(), SP_level_duration_adjust(), spell, object::spell, SWARM_SPELL, tailor_god_spell(), object::x, and object::y.

Referenced by cast_spell().

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get_pointed_target()

static object* get_pointed_target ( object *  op, int  dir, int  range, int  type  )

static

Returns the pointer to the first monster in the direction which is pointed to by op.

This is used by finger of death and the 'smite' spells.

Author

b.t.

Parameters

op	caster - really only used for the source location.
dir	direction to look in.
range	how far out to look.
type	type of spell - either SPELL_MANA or SPELL_GRACE. This info is used for blocked magic/unholy spaces.

Returns

suitable victim, or NULL if none was found.

Definition at line 496 of file spell_attack.cpp.

References FLAG_MONSTER, freearr_x, freearr_y, get_map_flags(), GET_MAP_MOVE_BLOCK, object::map, map_find_by_flag(), MOVE_FLY_LOW, P_IS_ALIVE, P_NO_CLERIC, P_NO_MAGIC, P_OUT_OF_MAP, SPELL_GRACE, SPELL_MANA, is_valid_types_gen::type, object::x, and object::y.

Referenced by cast_curse(), and cast_smite_spell().

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make_object_glow()

static int make_object_glow ( object *  op, int  radius, int  time  )

static

Makes living objects glow.

We do this by creating a force and inserting it in the object.

Creatures denied the path of light are unaffected.

Parameters

op	what to make glow.
radius	glow radius.
time	glow duration. If 0, the object glows permanently.

Return values

0	nothing happened.
1	op is now glowing.

Author

b.t.

Definition at line 665 of file spell_attack.cpp.

References create_archetype(), object::env, FLAG_IS_USED_UP, living::food, FORCE_NAME, object::glow_radius, llevError, LOG(), MAX_LIGHT_RADII, MIN_ACTIVE_SPEED, object::name, object_insert_in_ob(), object::path_denied, PATH_LIGHT, SET_FLAG, object::speed, object::stats, time, object::x, and object::y.

Referenced by cast_destruction().

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mood_change()

int mood_change	(	object *	op,
		object *	caster,
		object *	spell
	)

This covers the various spells that change the moods of monsters - makes them angry, peaceful, friendly, etc.

Parameters

op	who is casting.
caster	what object is casting.
spell	spell object to cast.

Returns

1.

Definition at line 904 of file spell_attack.cpp.

References add_friendly_object(), arch_to_object(), object::attack_movement, caster_level(), CLEAR_FLAG, determine_god(), did_make_save(), living::exp, find_god(), FLAG_BERSERK, FLAG_FRIENDLY, FLAG_GENERATOR, FLAG_MONSTER, FLAG_NO_ATTACK, FLAG_SLEEP, FLAG_UNAGGRESSIVE, FLAG_UNDEAD, get_map_flags(), object::level, level, llevError, LOG(), m, object::map, map_find_by_flag(), MIN, NROFATTACKS, object_get_value(), object_insert_in_map_at(), object_set_enemy(), object_set_owner(), object_set_value(), object_value_set(), P_IS_ALIVE, P_OUT_OF_MAP, PETMOVE, PLAYER, PREFER_HIGH, PREFER_LOW, QUERY_FLAG, object::race, random_roll(), remove_friendly_object(), object::resist, SET_FLAG, set_spell_skill(), share_exp(), SK_EXP_ADD_SKILL, object::skill, object::slaying, SP_level_range_adjust(), spell, object::stats, object::type, object::x, and object::y.

Referenced by cast_spell().

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