spell_attack.c File Reference

This file contains all the spell attack code. More...

#include <global.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.
int	cast_cone (object *op, object *caster, int dir, object *spell)
	Casts a cone spell.
int	cast_curse (object *op, object *caster, object *spell_ob, int dir)
	Curse an object, reducing its statistics.
int	cast_destruction (object *op, object *caster, object *spell_ob)
	Hit all monsters around the caster.
int	cast_light (object *op, object *caster, object *spell, int dir)
	Illuminates something on a map, or try to blind a living thing.
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.
void	check_bullet (object *op)
	Checks to see what op should do, given the space it is on (eg, explode, damage player, etc).
void	cone_drop (object *op)
	Drops an object based on what is in the cone's "other_arch".
int	create_bomb (object *op, object *caster, int dir, object *spell)
	Create a bomb.
void	explode_bullet (object *op)
	Causes an object to explode, eg, a firebullet, poison cloud ball, etc.
int	fire_bolt (object *op, object *caster, int dir, object *spob, object *skill)
	Cast a bolt-like spell.
int	fire_bullet (object *op, object *caster, int dir, object *spob)
	Casts a bullet-like spell.
int	fire_swarm (object *op, object *caster, object *spell, int dir)
	The following routine creates a swarm of objects.
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.
static int	make_object_glow (object *op, int radius, int time)
	Makes living objects glow.
int	mood_change (object *op, object *caster, object *spell)
	This covers the various spells that change the moods of monsters - makes them angry, peacful, friendly, etc.

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Detailed Description

This file contains all the spell attack code.

Grouping this code together should hopefully make it easier to find the relevent bits of code.

Todo:

put parameters in the same order, use same name.

Definition in file spell_attack.c.

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Function Documentation

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 1310 of file spell_attack.c.

References arch_to_object(), caster_level(), create_archetype(), draw_ext_info(), draw_ext_info_format(), FLAG_MONSTER, free_object(), freearr_x, freearr_y, get_map_flags(), GET_MAP_MOVE_BLOCK, GET_MAP_OB, infect_object(), insert_ob_in_map(), MOVE_FLY_LOW, MSG_TYPE_SPELL, MSG_TYPE_SPELL_FAILURE, MSG_TYPE_SPELL_SUCCESS, NDI_UNIQUE, P_IS_ALIVE, P_OUT_OF_MAP, PLAYER, QUERY_FLAG, set_owner(), set_spell_skill(), SP_level_dam_adjust(), SP_level_duration_adjust(), and SP_level_range_adjust().

Referenced by cast_spell().

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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 403 of file spell_attack.c.

References arch_to_object(), AT_FEAR, AT_GODPOWER, AT_HOLYWORD, AT_TURN_UNDEAD, caster_level(), cone_drop(), draw_ext_info(), fear_bonus, FLAG_UNDEAD, freearr_x, freearr_y, get_map_flags(), GET_MAP_MOVE_BLOCK, insert_ob_in_map(), llevDebug, LOG(), MOVE_FLY_LOW, MSG_TYPE_SPELL, MSG_TYPE_SPELL_ERROR, NDI_UNIQUE, P_OUT_OF_MAP, PLAYER, QUERY_FLAG, RUNE, set_owner(), set_spell_skill(), SP_level_dam_adjust(), SP_level_duration_adjust(), SP_level_range_adjust(), tailor_god_spell(), and turn_bonus.

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

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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 914 of file spell_attack.c.

References add_refcount(), change_abil(), create_archetype(), determine_god(), draw_ext_info(), draw_ext_info_format(), find_god(), fix_object(), FLAG_APPLIED, FORCE, FORCE_CHANGE_ABILITY, FORCE_NAME, free_string(), get_pointed_target(), insert_ob_in_ob(), MSG_TYPE_SPELL, MSG_TYPE_SPELL_FAILURE, MSG_TYPE_SPELL_SUCCESS, MSG_TYPE_VICTIM, MSG_TYPE_VICTIM_SPELL, NDI_UNIQUE, PLAYER, SET_FLAG, SP_level_duration_adjust(), and SPELL_GRACE.

Referenced by cast_spell().

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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 819 of file spell_attack.c.

References arch_to_object(), ATNR_MAGIC, change_skill(), find_skill_by_name(), FLAG_ALIVE, FLAG_FRIENDLY, get_map_flags(), GET_MAP_OB, hit_player(), insert_ob_in_map(), make_object_glow(), P_IS_ALIVE, P_OUT_OF_MAP, PLAYER, QUERY_FLAG, SP_DESTRUCTION, SP_FAERY_FIRE, SP_level_dam_adjust(), SP_level_duration_adjust(), and SP_level_range_adjust().

Referenced by cast_spell().

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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 1235 of file spell_attack.c.

References arch_to_object(), draw_ext_info(), FLAG_MONSTER, freearr_x, freearr_y, get_map_flags(), GET_MAP_MOVE_BLOCK, GET_MAP_OB, hit_player(), insert_ob_in_map(), llevError, LOG(), MAX_LIGHT_RADII, MSG_TYPE_SPELL, MSG_TYPE_SPELL_ERROR, MSG_TYPE_SPELL_FAILURE, NDI_UNIQUE, OB_TYPE_MOVE_BLOCK, P_IS_ALIVE, P_OUT_OF_MAP, QUERY_FLAG, SP_level_dam_adjust(), SP_level_duration_adjust(), and SP_level_range_adjust().

Referenced by cast_spell().

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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 655 of file spell_attack.c.

References arch_to_object(), AT_DEATH, AT_GODPOWER, AT_HOLYWORD, caster_level(), determine_god(), draw_ext_info(), draw_ext_info_format(), find_god(), FLAG_REFL_SPELL, FLAG_UNDEAD, free_object(), get_pointed_target(), HUGE_BUF, insert_ob_in_map(), MSG_TYPE_SPELL, MSG_TYPE_SPELL_FAILURE, MSG_TYPE_SPELL_SUCCESS, NDI_UNIQUE, PREFER_LOW, QUERY_FLAG, query_name(), random_roll(), set_owner(), set_spell_skill(), SP_EXPLOSION, SP_level_dam_adjust(), SP_level_range_adjust(), SPELL_EFFECT, SPELL_GRACE, SPELL_MANA, and tailor_god_spell().

Referenced by cast_spell().

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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 242 of file spell_attack.c.

References explode_bullet(), FLAG_ALIVE, FLAG_REMOVED, free_object(), get_map_flags(), GET_MAP_MOVE_BLOCK, GET_MAP_OB, hit_player(), OB_TYPE_MOVE_BLOCK, P_IS_ALIVE, QUERY_FLAG, and remove_ob().

Referenced by fire_bullet(), and move_bullet().

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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 369 of file spell_attack.c.

References add_refcount(), arch_to_object(), free_string(), insert_ob_in_map(), and set_owner().

Referenced by cast_cone(), and move_cone().

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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 552 of file spell_attack.c.

References arch_to_object(), draw_ext_info(), freearr_x, freearr_y, get_map_flags(), GET_MAP_MOVE_BLOCK, insert_ob_in_map(), MOVE_WALK, MSG_TYPE_SPELL, MSG_TYPE_SPELL_ERROR, NDI_UNIQUE, P_OUT_OF_MAP, set_owner(), set_spell_skill(), SP_level_dam_adjust(), SP_level_duration_adjust(), and SP_level_range_adjust().

Referenced by cast_spell().

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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 144 of file spell_attack.c.

References add_refcount(), arch_to_object(), AT_GODPOWER, AT_HOLYWORD, AT_MAGIC, copy_owner(), FREE_AND_CLEAR_STR, free_object(), get_owner(), hit_map(), insert_ob_in_map(), llevError, LOG(), object_get_env_recursive(), out_of_map(), remove_ob(), SP_BOMB, SP_CONE, SPELL_EFFECT, and tailor_god_spell().

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

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

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.
skill	skill to credit kill experience to.

Return values:

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

Definition at line 78 of file spell_attack.c.

References absdir(), add_refcount(), arch_to_object(), DIRX, DIRY, FLAG_IS_TURNABLE, FLAG_REFLECTING, free_object(), get_map_flags(), GET_MAP_MOVE_BLOCK, insert_ob_in_map(), ob_process(), OB_TYPE_MOVE_BLOCK, P_OUT_OF_MAP, QUERY_FLAG, SET_ANIMATION, set_owner(), set_spell_skill(), SP_level_dam_adjust(), SP_level_duration_adjust(), and SP_level_range_adjust().

Referenced by cast_spell().

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

Casts a bullet-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.
caster	what object is really casting.
dir	casting direction.
spob	spell object for the bullet.

Return values:

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

Definition at line 301 of file spell_attack.c.

References absdir(), add_refcount(), arch_to_object(), check_bullet(), FLAG_IS_TURNABLE, FLAG_REFLECTING, free_object(), freearr_x, freearr_y, get_map_flags(), GET_MAP_MOVE_BLOCK, insert_ob_in_map(), OB_TYPE_MOVE_BLOCK, P_OUT_OF_MAP, QUERY_FLAG, SET_ANIMATION, set_owner(), set_spell_skill(), SP_level_dam_adjust(), SP_level_duration_adjust(), and SP_level_range_adjust().

Referenced by cast_spell(), and move_swarm_spell().

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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 1185 of file spell_attack.c.

References arch_to_object(), AT_GODPOWER, AT_HOLYWORD, caster_level(), create_archetype(), die_roll(), insert_ob_in_map(), PREFER_HIGH, set_owner(), set_spell_skill(), SP_level_duration_adjust(), SWARM_SPELL, and tailor_god_spell().

Referenced by cast_spell().

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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 603 of file spell_attack.c.

References FLAG_MONSTER, freearr_x, freearr_y, get_map_flags(), GET_MAP_MOVE_BLOCK, GET_MAP_OB, MOVE_FLY_LOW, P_IS_ALIVE, P_NO_CLERIC, P_NO_MAGIC, P_OUT_OF_MAP, QUERY_FLAG, SPELL_GRACE, and SPELL_MANA.

Referenced by cast_curse(), and cast_smite_spell().

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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 777 of file spell_attack.c.

References create_archetype(), FLAG_IS_USED_UP, FORCE_NAME, insert_ob_in_ob(), llevError, LOG(), MAX_LIGHT_RADII, MIN_ACTIVE_SPEED, PATH_LIGHT, and SET_FLAG.

Referenced by cast_destruction().

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

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

Parameters:

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

Returns:

1.

Definition at line 1014 of file spell_attack.c.

References add_friendly_object(), arch_to_object(), caster_level(), CLEAR_FLAG, determine_god(), did_make_save(), find_god(), FLAG_BERSERK, FLAG_FRIENDLY, FLAG_GENERATOR, FLAG_MONSTER, FLAG_NO_ATTACK, FLAG_SLEEP, FLAG_UNAGGRESSIVE, FLAG_UNDEAD, get_map_flags(), GET_MAP_OB, insert_ob_in_map(), MIN, NROFATTACKS, P_IS_ALIVE, P_OUT_OF_MAP, PETMOVE, PLAYER, PREFER_LOW, QUERY_FLAG, random_roll(), remove_friendly_object(), SET_FLAG, set_owner(), set_spell_skill(), share_exp(), SK_EXP_ADD_SKILL, and SP_level_range_adjust().

Referenced by cast_spell().

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