path: root/src/map/battle.h

// Copyright (c) Hercules Dev Team, licensed under GNU GPL.
// See the LICENSE file
// Portions Copyright (c) Athena Dev Teams

#ifndef _BATTLE_H_
#define _BATTLE_H_

#include "../common/cbasetypes.h"
#include "map.h" //ELE_MAX

/**
 * Declarations
 **/
struct map_session_data;
struct mob_data;
struct block_list;
struct weapon_atk;
struct status_change;
struct status_data;

/**
 * Defines
 **/
#define MIN_HAIR_STYLE battle_config.min_hair_style
#define MAX_HAIR_STYLE battle_config.max_hair_style
#define MIN_HAIR_COLOR battle_config.min_hair_color
#define MAX_HAIR_COLOR battle_config.max_hair_color
#define MIN_CLOTH_COLOR battle_config.min_cloth_color
#define MAX_CLOTH_COLOR battle_config.max_cloth_color

#define	is_boss(bl)	(status_get_mode(bl)&MD_BOSS)	// Can refine later [Aru]

/**
 * Enumerations
 **/

enum {	// Flag of the final calculation
	BF_WEAPON	= 0x0001,
	BF_MAGIC	= 0x0002,
	BF_MISC		= 0x0004,
	BF_SHORT	= 0x0010,
	BF_LONG		= 0x0040,
	BF_SKILL	= 0x0100,
	BF_NORMAL	= 0x0200,
	BF_WEAPONMASK=0x000f,
	BF_RANGEMASK= 0x00f0,
	BF_SKILLMASK= 0x0f00,
};

// state of a single attack attempt; used in flee/def penalty calculations when mobbed
typedef enum damage_lv {
	ATK_NONE,    // not an attack
	ATK_LUCKY,   // attack was lucky-dodged
	ATK_FLEE,    // attack was dodged
	ATK_MISS,    // attack missed because of element/race modifier.
	ATK_BLOCK,   // attack was blocked by some skills.
	ATK_DEF      // attack connected
} damage_lv;

enum e_battle_check_target { //New definitions [Skotlex]
	BCT_NOONE       =   0x000000,
	BCT_SELF        =   0x010000,
	BCT_ENEMY       =   0x020000,
	BCT_PARTY       =   0x040000,
	BCT_GUILDALLY   =   0x080000,	// Only allies, NOT guildmates
	BCT_NEUTRAL     =   0x100000,
	BCT_SAMEGUILD   =   0x200000,   // No Guild Allies
	
	BCT_GUILD       =   0x280000,	// Guild AND allies (BCT_SAMEGUILD|BCT_GUILDALLY)
	
	BCT_NOGUILD     =   0x170000,	// This should be (~BCT_GUILD&BCT_ALL)
	BCT_NOPARTY     =   0x3b0000,	// This should be (~BCT_PARTY&BCT_ALL)
	BCT_NOENEMY     =   0x3d0000,	// This should be (~BCT_ENEMY&BCT_ALL)
	
	BCT_ALL         =   0x3f0000,	// Sum of BCT_NOONE to BCT_SAMEGUILD
};

/**
 * Structures
 **/

// dammage structure
struct Damage {
	int64 damage,damage2; //right, left dmg
	int type,div_; //chk clif_damage for type @TODO add an enum ? ;  nb of hit
	int amotion,dmotion;
	int blewcount; //nb of knockback
	int flag; //chk BF_* flag, (enum below)
	enum damage_lv dmg_lv;	//ATK_LUCKY,ATK_FLEE,ATK_DEF
};

struct Battle_Config {
	int warp_point_debug;
	int enable_critical;
	int mob_critical_rate;
	int critical_rate;
	int enable_baseatk;
	int enable_perfect_flee;
	int cast_rate, delay_rate;
	int delay_dependon_dex, delay_dependon_agi;
	int sdelay_attack_enable;
	int left_cardfix_to_right;
	int skill_add_range;
	int skill_out_range_consume;
	int skill_amotion_leniency;
	int skillrange_by_distance; //[Skotlex]
	int use_weapon_skill_range; //[Skotlex]
	int pc_damage_delay_rate;
	int defnotenemy;
	int vs_traps_bctall;
	int traps_setting;
	int summon_flora; //[Skotlex]
	int clear_unit_ondeath; //[Skotlex]
	int clear_unit_onwarp; //[Skotlex]
	int random_monster_checklv;
	int attr_recover;
	int item_auto_get;
	int flooritem_lifetime;
	int item_first_get_time;
	int item_second_get_time;
	int item_third_get_time;
	int mvp_item_first_get_time;
	int mvp_item_second_get_time;
	int mvp_item_third_get_time;
	int base_exp_rate,job_exp_rate;
	int drop_rate0item;
	int death_penalty_type;
	int death_penalty_base,death_penalty_job;
	int pvp_exp;  // [MouseJstr]
	int gtb_sc_immunity;
	int zeny_penalty;
	int restart_hp_rate;
	int restart_sp_rate;
	int mvp_exp_rate;
	int mvp_hp_rate;
	int monster_hp_rate;
	int monster_max_aspd;
	int view_range_rate;
	int chase_range_rate;
	int atc_spawn_quantity_limit;
	int atc_slave_clone_limit;
	int partial_name_scan;
	int skillfree;
	int skillup_limit;
	int wp_rate;
	int pp_rate;
	int monster_active_enable;
	int monster_damage_delay_rate;
	int monster_loot_type;
	int mob_skill_rate;	//[Skotlex]
	int mob_skill_delay;	//[Skotlex]
	int mob_count_rate;
	int no_spawn_on_player; //[Skotlex]
	int force_random_spawn; //[Skotlex]
	int mob_spawn_delay, plant_spawn_delay, boss_spawn_delay;	// [Skotlex]
	int slaves_inherit_mode;
	int slaves_inherit_speed;
	int summons_trigger_autospells;
	int pc_walk_delay_rate; //Adjusts can't walk delay after being hit for players. [Skotlex]
	int walk_delay_rate; //Adjusts can't walk delay after being hit. [Skotlex]
	int multihit_delay;  //Adjusts can't walk delay per hit on multi-hitting skills. [Skotlex]
	int quest_skill_learn;
	int quest_skill_reset;
	int basic_skill_check;
	int guild_emperium_check;
	int guild_exp_limit;
	int guild_max_castles;
	int guild_skill_relog_delay;
	int emergency_call;
	int guild_aura;
	int pc_invincible_time;
	
	int pet_catch_rate;
	int pet_rename;
	int pet_friendly_rate;
	int pet_hungry_delay_rate;
	int pet_hungry_friendly_decrease;
	int pet_status_support;
	int pet_attack_support;
	int pet_damage_support;
	int pet_support_min_friendly;	//[Skotlex]
	int pet_equip_min_friendly;
	int pet_support_rate;
	int pet_attack_exp_to_master;
	int pet_attack_exp_rate;
	int pet_lv_rate; //[Skotlex]
	int pet_max_stats; //[Skotlex]
	int pet_max_atk1; //[Skotlex]
	int pet_max_atk2; //[Skotlex]
	int pet_no_gvg; //Disables pets in gvg. [Skotlex]
	int pet_equip_required;
	
	int skill_min_damage;
	int finger_offensive_type;
	int heal_exp;
	int max_heal_lv;
	int max_heal; //Mitternacht
	int resurrection_exp;
	int shop_exp;
	int combo_delay_rate;
	int item_check;
	int item_use_interval;	//[Skotlex]
	int cashfood_use_interval;
	int wedding_modifydisplay;
	int wedding_ignorepalette;	//[Skotlex]
	int xmas_ignorepalette;	// [Valaris]
	int summer_ignorepalette; // [Zephyrus]
	int hanbok_ignorepalette;
	int natural_healhp_interval;
	int natural_healsp_interval;
	int natural_heal_skill_interval;
	int natural_heal_weight_rate;
	int arrow_decrement;
	int max_aspd;
	int max_walk_speed;	//Maximum walking speed after buffs [Skotlex]
	int max_hp;
	int max_sp;
	int max_lv, aura_lv;
	int max_parameter, max_baby_parameter;
	int max_cart_weight;
	int skill_log;
	int battle_log;
	int etc_log;
	int save_clothcolor;
	int undead_detect_type;
	int auto_counter_type;
	int min_hitrate;	//[Skotlex]
	int max_hitrate;	//[Skotlex]
	int agi_penalty_target;
	int agi_penalty_type;
	int agi_penalty_count;
	int agi_penalty_num;
	int vit_penalty_target;
	int vit_penalty_type;
	int vit_penalty_count;
	int vit_penalty_num;
	int weapon_defense_type;
	int magic_defense_type;
	int skill_reiteration;
	int skill_nofootset;
	int pc_cloak_check_type;
	int monster_cloak_check_type;
	int estimation_type;
	int gvg_flee_penalty;
	int mob_changetarget_byskill;
	int attack_direction_change;
	int land_skill_limit;
	int monster_class_change_recover;
	int produce_item_name_input;
	int display_skill_fail;
	int chat_warpportal;
	int mob_warp;
	int dead_branch_active;
	int vending_max_value;
	int vending_over_max;
	int vending_tax;
	int show_steal_in_same_party;
	int party_share_type;
	int party_hp_mode;
	int party_show_share_picker;
	int show_picker_item_type;
	int attack_attr_none;
	int item_rate_mvp, item_rate_common, item_rate_common_boss, item_rate_card, item_rate_card_boss,
	item_rate_equip, item_rate_equip_boss, item_rate_heal, item_rate_heal_boss, item_rate_use,
	item_rate_use_boss, item_rate_treasure, item_rate_adddrop;
	
	int logarithmic_drops;
	int item_drop_common_min,item_drop_common_max;	// Added by TyrNemesis^
	int item_drop_card_min,item_drop_card_max;
	int item_drop_equip_min,item_drop_equip_max;
	int item_drop_mvp_min,item_drop_mvp_max;	// End Addition
	int item_drop_heal_min,item_drop_heal_max;	// Added by Valatris
	int item_drop_use_min,item_drop_use_max;	//End
	int item_drop_treasure_min,item_drop_treasure_max; //by [Skotlex]
	int item_drop_adddrop_min,item_drop_adddrop_max; //[Skotlex]
	
	int prevent_logout;	// Added by RoVeRT
	
	int alchemist_summon_reward;	// [Valaris]
	int drops_by_luk;
	int drops_by_luk2;
	int equip_natural_break_rate;	//Base Natural break rate for attacks.
	int equip_self_break_rate; //Natural & Penalty skills break rate
	int equip_skill_break_rate; //Offensive skills break rate
	int multi_level_up;
	int max_exp_gain_rate; //Max amount of exp bar % you can get in one go.
	int pk_mode;
	int pk_level_range;
	
	int manner_system; // end additions [Valaris]
	int show_mob_info;
	
	int gx_allhit;
	int gx_disptype;
	int devotion_level_difference;
	int player_skill_partner_check;
	int invite_request_check;
	int skill_removetrap_type;
	int disp_experience;
	int disp_zeny;
	int castle_defense_rate;
	int backstab_bow_penalty;
	int hp_rate;
	int sp_rate;
	int bone_drop;
	int buyer_name;
	int dancing_weaponswitch_fix;
	
	// eAthena additions
	int night_at_start; // added by [Yor]
	int day_duration; // added by [Yor]
	int night_duration; // added by [Yor]
	int ban_hack_trade; // added by [Yor]
	
	int min_hair_style; // added by [MouseJstr]
	int max_hair_style; // added by [MouseJstr]
	int min_hair_color; // added by [MouseJstr]
	int max_hair_color; // added by [MouseJstr]
	int min_cloth_color; // added by [MouseJstr]
	int max_cloth_color; // added by [MouseJstr]
	int pet_hair_style; // added by [Skotlex]
	
	int castrate_dex_scale; // added by [MouseJstr]
	int area_size; // added by [MouseJstr]
	
	int max_def, over_def_bonus; //added by [Skotlex]
	
	int zeny_from_mobs; // [Valaris]
	int mobs_level_up; // [Valaris]
	int mobs_level_up_exp_rate; // [Valaris]
	int pk_min_level; // [celest]
	int skill_steal_max_tries; //max steal skill tries on a mob. if 0, then w/o limit [Lupus]
	int exp_calc_type;
	int exp_bonus_attacker;
	int exp_bonus_max_attacker;
	int min_skill_delay_limit;
	int default_walk_delay;
	int no_skill_delay;
	int attack_walk_delay;
	int require_glory_guild;
	int idle_no_share;
	int party_update_interval;
	int party_even_share_bonus;
	int delay_battle_damage;
	int hide_woe_damage;
	int display_version;
	
	int display_hallucination;	// [Skotlex]
	int use_statpoint_table;	// [Skotlex]
	
	int ignore_items_gender; //[Lupus]
	
	int copyskill_restrict; // [Aru]
	int berserk_cancels_buffs; // [Aru]
	int mob_ai; //Configures various mob_ai settings to make them smarter or dumber(official). [Skotlex]
	int hom_setting; //Configures various homunc settings which make them behave unlike normal characters.. [Skotlex]
	int dynamic_mobs; // Dynamic Mobs [Wizputer] - battle.conf flag implemented by [random]
	int mob_remove_damaged; // Dynamic Mobs - Remove mobs even if damaged [Wizputer]
	int mob_remove_delay; // Dynamic Mobs - delay before removing mobs from a map [Skotlex]
	int mob_active_time; //Duration through which mobs execute their Hard AI after players leave their area of sight.
	int boss_active_time;
	
	int show_hp_sp_drain, show_hp_sp_gain;	//[Skotlex]
	
	int mob_npc_event_type; //Determines on who the npc_event is executed. [Skotlex]
	
	int character_size; // if riders have size=2, and baby class riders size=1 [Lupus]
	int rare_drop_announce; // chance <= to show rare drops global announces
	
	int retaliate_to_master;	//Whether when a mob is attacked by another mob, it will retaliate versus the mob or the mob's master. [Skotlex]
	
	int duel_allow_pvp; // [LuzZza]
	int duel_allow_gvg; // [LuzZza]
	int duel_allow_teleport; // [LuzZza]
	int duel_autoleave_when_die; // [LuzZza]
	int duel_time_interval; // [LuzZza]
	int duel_only_on_same_map; // [Toms]
	
	int skip_teleport_lv1_menu; // possibility to disable (skip) Teleport Lv1 menu, that have only two lines `Random` and `Cancel` [LuzZza]
	int mob_max_skilllvl;
	int allow_skill_without_day; // [Komurka]
	int allow_es_magic_pc; // [Skotlex]
	int skill_wall_check; // [Skotlex]
	int cell_stack_limit; // [Skotlex]
	int skill_caster_check; // [Skotlex]
	int sc_castcancel; // [Skotlex]
	int pc_sc_def_rate; // [Skotlex]
	int mob_sc_def_rate;
	int pc_max_sc_def;
	int mob_max_sc_def;
	
	int sg_angel_skill_ratio;
	int sg_miracle_skill_ratio;
	int sg_miracle_skill_duration;
	int autospell_stacking; //Enables autospell cards to stack. [Skotlex]
	int override_mob_names; //Enables overriding spawn mob names with the mob_db names. [Skotlex]
	int min_chat_delay; //Minimum time between client messages. [Skotlex]
	int friend_auto_add; //When accepting friends, both get friended. [Skotlex]
	int hvan_explosion_intimate;	// fix [albator]
	int hom_rename;
	int homunculus_show_growth ;	//[orn]
	int homunculus_friendly_rate;
	int quest_exp_rate;
	int autotrade_mapflag;
	int at_timeout;
	int homunculus_autoloot;
	int idle_no_autoloot;
	int max_guild_alliance;
	int ksprotection;
	int auction_feeperhour;
	int auction_maximumprice;
	int homunculus_auto_vapor;	//Keep Homunculus from Vaporizing when master dies. [L0ne_W0lf]
	int display_status_timers;	//Show or hide skill buff/delay timers in recent clients [Sara]
	int skill_add_heal_rate;	//skills that bHealPower has effect on [Inkfish]
	int eq_single_target_reflectable;
	int invincible_nodamage;
	int mob_slave_keep_target;
	int autospell_check_range;	//Enable range check for autospell bonus. [L0ne_W0lf]
	int client_reshuffle_dice;  // Reshuffle /dice
	int client_sort_storage;
	int feature_buying_store;
	int feature_search_stores;
	int searchstore_querydelay;
	int searchstore_maxresults;
	int display_party_name;
	int cashshop_show_points;
	int mail_show_status;
	int client_limit_unit_lv;
	int hom_max_level;
	int hom_S_max_level;
	
	// [BattleGround Settings]
	int bg_update_interval;
	int bg_flee_penalty;
	
	// rAthena
	int max_third_parameter;
	int max_baby_third_parameter;
	int atcommand_max_stat_bypass;
	int max_third_aspd;
	int vcast_stat_scale;
	
	int mvp_tomb_enabled;
	
	int atcommand_suggestions_enabled;
    int min_npc_vendchat_distance;
	int atcommand_mobinfo_type;
	
	int mob_size_influence; // Enable modifications on earned experience, drop rates and monster status depending on monster size. [mkbu95]
	
	/** Hercules **/
	int skill_trap_type;
	int item_restricted_consumption_type;
	int max_walk_path;
	int item_enabled_npc;
	int packet_obfuscation;
	int idletime_criteria;
	int gm_ignore_warpable_area;
	
	int client_accept_chatdori; // [Ai4rei/Mirei]
	int snovice_call_type;
	int guild_notice_changemap;
	
	int feature_banking;
	int feature_auction;

	int mon_trans_disable_in_gvg;
} battle_config;

/* criteria for battle_config.idletime_critera */
enum e_battle_config_idletime {
	BCIDLE_WALK          = 0x001,
	BCIDLE_USESKILLTOID  = 0x002,
	BCIDLE_USESKILLTOPOS = 0x004,
	BCIDLE_USEITEM       = 0x008,
	BCIDLE_ATTACK        = 0x010,
	BCIDLE_CHAT          = 0x020,
	BCIDLE_SIT           = 0x040,
	BCIDLE_EMOTION       = 0x080,
	BCIDLE_DROPITEM      = 0x100,
	BCIDLE_ATCOMMAND     = 0x200,
};

// Dammage delayed info
struct delay_damage {
	int src_id;
	int target_id;
	int64 damage;
	int delay;
	unsigned short distance;
	uint16 skill_lv;
	uint16 skill_id;
	enum damage_lv dmg_lv;
	unsigned short attack_type;
	bool additional_effects;
	enum bl_type src_type;
};

/**
 * Battle.c Interface
 **/
struct battle_interface {
	/* */
	struct Battle_Config *bc;
	/* */
	int attr_fix_table[4][ELE_MAX][ELE_MAX];
	struct eri *delay_damage_ers; //For battle delay damage structures.
	/* init */
	void (*init) (void);
	/* final */
	void (*final) (void);
	/* damage calculation */
	struct Damage (*calc_attack) (int attack_type, struct block_list *bl, struct block_list *target, uint16 skill_id, uint16 skill_lv, int count);
	/* generic final damage calculation */
	int64 (*calc_damage) (struct block_list *src, struct block_list *bl, struct Damage *d, int64 damage, uint16 skill_id, uint16 skill_lv);
	/* gvg final damage calculation */
	int64 (*calc_gvg_damage) (struct block_list *src, struct block_list *bl, int64 damage, int div_, uint16 skill_id, uint16 skill_lv, int flag);
	/* battlegrounds final damage calculation */
	int64 (*calc_bg_damage) (struct block_list *src, struct block_list *bl, int64 damage, int div_, uint16 skill_id, uint16 skill_lv, int flag);
	/* normal weapon attack */
	enum damage_lv (*weapon_attack) (struct block_list *bl, struct block_list *target, int64 tick, int flag);
	/* calculate weapon attack */
	struct Damage (*calc_weapon_attack) (struct block_list *src,struct block_list *target,uint16 skill_id,uint16 skill_lv,int wflag);
	/* delays damage or skills by a timer */
	int (*delay_damage) (int64 tick, int amotion, struct block_list *src, struct block_list *target, int attack_type, uint16 skill_id, uint16 skill_lv, int64 damage, enum damage_lv dmg_lv, int ddelay, bool additional_effects);
	/* drain damage */
	void (*drain) (struct map_session_data *sd, struct block_list *tbl, int64 rdamage, int64 ldamage, int race, int boss);
	/* damage return/reflect */
	int64 (*calc_return_damage) (struct block_list *bl, struct block_list *src, int64 *, int flag, uint16 skill_id, int *rdelay);
	/* attribute rate */
	int (*attr_ratio) (int atk_elem, int def_type, int def_lv);
	/* applies attribute modifiers */
	int64 (*attr_fix) (struct block_list *src, struct block_list *target, int64 damage, int atk_elem, int def_type, int def_lv);
	/* applies card modifiers */
	int64 (*calc_cardfix) (int attack_type, struct block_list *src, struct block_list *target, int nk, int s_ele, int s_ele_, int64 damage, int left, int flag);
	/* applies element modifiers */	
	int64 (*calc_elefix) (struct block_list *src, struct block_list *target, uint16 skill_id, uint16 skill_lv, int64 damage, int nk, int n_ele, int s_ele, int s_ele_, bool left, int flag);
	/* applies mastery modifiers */	
	int64 (*calc_masteryfix) (struct block_list *src, struct block_list *target, uint16 skill_id, uint16 skill_lv, int64 damage, int div, bool left, bool weapon);
	/* applies skill modifiers */
	int (*calc_skillratio) (int attack_type, struct block_list *src, struct block_list *target, uint16 skill_id, uint16 skill_lv, int skillratio, int flag);
	/* applies size modifiers */
	int64 (*calc_sizefix) (struct map_session_data *sd, int64 damage, int type, int size,  bool ignore);
	/* get weapon damage */
	int64 (*calc_weapon_damage) (struct block_list *src, struct block_list *bl, uint16 skill_id, uint16 skill_lv, struct weapon_atk *watk, int nk, bool n_ele, short s_ele, short s_ele_, int size, int type, int flag, int flag2);
	/* applies defense reductions */
	int64 (*calc_defense) (int attack_type, struct block_list *src, struct block_list *target, uint16 skill_id, uint16 skill_lv, int64 damage, int flag, int pdef);
	/* get master (who does this unit respond to?) */
	struct block_list *(*get_master) (struct block_list *src);
	/* returns a random unit who is targeting this unit */
	struct block_list *(*get_targeted) (struct block_list *target);
	/* picks a random enemy unit who is in the area of sight */
	struct block_list *(*get_enemy) (struct block_list *target, int type, int range);
	/* the target id (if any) of this unit */
	int (*get_target) (struct block_list *bl);
	/* the current skill being processed/casted by this unit */
	int (*get_current_skill) (struct block_list *bl);
	/* is either this race or element enough to be considered undead? */
	int (*check_undead) (int race,int element);
	/* check if src and target are part of flag (e.g. enemies or allies) */
	int (*check_target) (struct block_list *src, struct block_list *target,int flag);
	/* is src and bl within range? */
	bool (*check_range) (struct block_list *src,struct block_list *bl,int range);
	/* consume amo for this skill and lv */
	void (*consume_ammo) (struct map_session_data* sd, int skill_id, int lv);
	int (*get_targeted_sub) (struct block_list *bl, va_list ap);
	int (*get_enemy_sub) (struct block_list *bl, va_list ap);
	int (*get_enemy_area_sub) (struct block_list *bl, va_list ap);
	int (*delay_damage_sub) (int tid, int64 tick, int id, intptr_t data);
	int (*blewcount_bonus) (struct map_session_data *sd, uint16 skill_id);
	/* skill range criteria */
	int (*range_type) (struct block_list *src, struct block_list *target, uint16 skill_id, uint16 skill_lv);
	int64 (*calc_base_damage) (struct block_list *src, struct block_list *bl, uint16 skill_id, uint16 skill_lv, int nk, bool n_ele, short s_ele, short s_ele_, int type, int flag, int flag2);
	int64 (*calc_base_damage2) (struct status_data *st, struct weapon_atk *wa, struct status_change *sc, unsigned short t_size, struct map_session_data *sd, int flag);
	struct Damage (*calc_misc_attack) (struct block_list *src,struct block_list *target,uint16 skill_id,uint16 skill_lv,int mflag);
	struct Damage (*calc_magic_attack) (struct block_list *src,struct block_list *target,uint16 skill_id,uint16 skill_lv,int mflag);
	int (*adjust_skill_damage) (int m, unsigned short skill_id);
	int64 (*add_mastery) (struct map_session_data *sd,struct block_list *target,int64 dmg,int type);
	int (*calc_drain) (int64 damage, int rate, int per);
	/* - battle_config                           */
	int (*config_read) (const char *cfgName);
	void (*config_set_defaults) (void);
	int (*config_set_value) (const char* w1, const char* w2);
	int (*config_get_value) (const char* w1);
	void (*config_adjust) (void);
	/* ----------------------------------------- */
	/* picks a random enemy within the specified range */
	struct block_list* (*get_enemy_area) (struct block_list *src, int x, int y, int range, int type, int ignore_id);
	/* damages area, originally for royal guard's reflect damage */
	int (*damage_area) (struct block_list *bl, va_list ap);
};

struct battle_interface *battle;

void battle_defaults(void);
#endif /* _BATTLE_H_ */