/*
   Kitsune's Curse
   Copyright (C) 2020-2023 Juan J. Martinez <jjm@usebox.net>

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
#include "splib.h"
#include "plw.h"
#include "sound.h"
#include "main.h"

#include "maps.h"

// generated
#include "oni.h"

#include "entities.h"
#include "et_oni.h"
#include "et_player.h"

void draw_oni() {
    put_sprite4(oni[*it_frame], *it_x, *it_y, 2, *it_param);
    erase_sprite(*it_ox, *it_oy, 2);
}

void update_oni() {
    if (++(*it_delay) > 32)
    {
        if ((*it_param && *it_x < px)
                || (!*it_param && *it_x > px))
        {
            *it_extra = 4;
            *it_frame = 1;

            if (*it_delay == 33)
                PLW_PlaySoundEffectP(EFX_ONI);

            if (*it_delay > 48)
            {
                *it_delay = 0;
                *it_frame = 0;
                *it_extra = 2;
            }
        }
        else
            --(*it_delay);
    }

    if (*it_param)
    {
        if (is_map_blocked(*it_x + 11, *it_y + 8) || *it_x > TW * TMW - 8 - 4)
            goto oni_change_dir;
        else
            *it_x += *it_extra;
    }
    else
    {
        if (is_map_blocked(*it_x - 4, *it_y + 8) || *it_x < 4)
            goto oni_change_dir;
        else
            *it_x -= *it_extra;
    }

    if (check_for_player(16))
    {
        player_hit(1);
        *it_frame = 0;
        *it_extra = 2;
        *it_delay = 0;
oni_change_dir:
        *it_param ^= 128;
    }
}