#include "comp/entity.h"
#include "comp/fighter.h"
#include "comp/visible.h"
#include "enemies.h"
#include <stdlib.h>
#include <math.h>

static int instantiate_stat(fixed_t affinity, fixed_t multiplier, int level)
{
    float a = f2double(affinity);
    float x = level;
    float y = powf(x, a) + x + 3 * a;
    return fround(multiplier * (int)y);
}

void fighter_set_stats(fighter_t *f, fighter_stat_model_t const *model,
    int level, fixed_t factor)
{
    f->HP_max = instantiate_stat(model->HP,  fmul(fix(2.0), factor), level);
    f->ATK    = instantiate_stat(model->ATK, fix(1.6), level);
    f->MAG    = instantiate_stat(model->MAG, fix(1.6), level);
    f->DEF    = instantiate_stat(model->DEF, fix(0.7), level);
}

int fighter_damage(entity_t *e, int base_damage)
{
    fighter_t *f = getcomp(e, fighter);

    if(f->HP == 0) return 0;

    base_damage -= f->DEF;
    if(base_damage <= 0) return 0;

    int variation = (base_damage >= 4) ? (rand() % (base_damage / 4)) : 0;
    int damage = (base_damage * 7) / 8 + variation;

    if(f->HP < damage) f->HP = 0;
    else f->HP -= damage;

    if(f->enemy_data != NULL) {
        if(f->HP == 0)
            visible_set_anim(e, f->enemy_data->anim_death, 4);
        else
            visible_set_anim(e, f->enemy_data->anim_hit, 3);
    }
    else {
        visible_set_anim(e, &anims_player_Hit, 3);
    }

    return damage;
}