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/*
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 "spider.h"
#include "entities.h"
#include "et_spider.h"
#include "et_player.h"
void draw_spider()
{
if (!*it_frame)
put_sprite4(spider[1], *it_x, *it_y, 1, 0);
else
{
// draws the thread
if (!(*it_param & 128))
it_k = *it_param & 127;
else
it_k = *it_extra - (*it_param & 127);
it_k >>= 3;
while (it_k)
{
put_sprite4(spider[2], *it_x, *it_y - (it_k << 3), 1, 0);
--it_k;
}
put_sprite4(spider[0], *it_x, *it_y, 2, 0);
erase_sprite(*it_ox, *it_oy, 2);
}
}
void update_spider()
{
// waiting
if (!*it_frame)
{
if (!magic && life && py > *it_y && abs_sub(*it_x, px) < 9 && abs_sub(*it_y, py) < 48)
{
*it_frame = 1;
PLW_PlaySoundEffectP(EFX_SPIDER);
}
else
return;
}
// limit and change direction
if ((*it_param & 127) == *it_extra)
{
// back up
if (*it_param & 128)
{
erase_sprite(*it_x, *it_y + 8, 1);
*it_frame = 0;
*it_param = 0;
goto spider_done;
}
else
// touch bottom
*it_param = 128;
}
if (*it_param & 128)
{
*it_y -= 1;
*it_param += 1;
}
else
{
*it_y += 8;
*it_param += 8;
}
spider_done:
// only going down
if (!(*it_param & 128) && check_for_player(16))
player_hit(1);
}
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