//---
// fighter: Component for entities that participate in fights
//
// This component gives combat statistics and leveling properties to entities.
//---

#pragma once

#include "comp/entity.h"
#include "fixed.h"

typedef struct
{
    /* Hit Points */
    fixed_t HP;
    /* Physical attack */
    fixed_t ATK;
    /* Magical attack */
    fixed_t MAG;
    /* Physical and magical defense */
    fixed_t DEF;

} fighter_stat_model_t;

typedef struct
{
    /* Current attack's effect area */
    entity_t *current_attack;
    /* Whether attack follows movement */
    uint8_t attack_follows_movement;
    /* Pointer to enemy data (NULL if player) */
    struct enemy_data *enemy;
    /* Pointer to player data (NULL if enemy) */
    struct player_data *player;
    /* Combat statistics */
    uint16_t HP, ATK, MAG, DEF, HP_max;

    /* Number of hits in main attack's combo (TODO: Delegate to weapon?) */
    uint8_t combo_length;
    /* Next hit to be dealt */
    uint8_t combo_next;
    /* Delay until ideal time to start next hit */
    fixed_t combo_delay;
    /* List of skills or equipped items. The first entry (skills[0]) usually
       means the normal attack and might be handled separately because of the
       combo system */
    int skills[6];
    /* Cooldown; positive while waiting, zero when the skill/item is ready */
    fixed_t actions_cooldown[6];

    /* Current status effects */
    fixed_t stun_delay;
    fixed_t invulnerability_delay;

} fighter_t;

/* Multiply equipment stat modifiers */
fighter_stat_model_t fighter_stat_model_mul(int amount, ...);

/* Instantiate a statistics model with optional equipment and HP multiplier */
fighter_stat_model_t fighter_stat_model_instantiate(
    fighter_stat_model_t const *model, fighter_stat_model_t const *equipment,
    int level, fixed_t hp_multiplier);

/* Initialize fighter's stats by using the instantiated stat model */
void fighter_set_stats(fighter_t *f, fighter_stat_model_t const *instance);

/* Damage entity for that amount of raw strength. Returns actual damage after
   DES is subtracted, and randomization. */
int fighter_damage(entity_t *e, int base_damage);

/* Stun the fighter for a specified duration. */
void fighter_stun(entity_t *e, fixed_t duration);

/* Make the fighter invulnerable for a specified duration. */
void fighter_invulnerability(entity_t *e, fixed_t duration);

/* Free dynamic data (enemy info). */
void fighter_destroy(entity_t *e);