/*
Copyright (C) 2009-2024 Parallel Realities

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 2
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, write to the Free Software
Foundation, 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA.
*/

#include "../headers.h"

#include "../audio/audio.h"
#include "../collisions.h"
#include "../entity.h"
#include "../graphics/animation.h"
#include "../graphics/decoration.h"
#include "../system/error.h"
#include "../system/properties.h"
#include "../system/random.h"

extern Entity *self;

static void entityWait(void);
static void sink(void);

Entity *addShieldPillar(int x, int y, char *name)
{
	Entity *e = getFreeEntity();

	if (e == NULL)
	{
		showErrorAndExit("No free slots to add a Shield Pillar");
	}

	loadProperties(name, e);

	e->x = x;
	e->y = y;

	e->type = KEY_ITEM;

	e->face = RIGHT;

	e->action = &entityWait;
	e->touch = &pushEntity;

	e->draw = &drawLoopingAnimationToMap;

	e->active = FALSE;

	setEntityAnimation(e, "STAND");

	return e;
}

static void entityWait()
{
	if (self->active == TRUE)
	{
		self->health = playSoundToMap("sound/boss/ant_lion/earthquake", -1, self->x, self->y, -1);

		self->action = &sink;
	}

	checkToMap(self);
}

static void sink()
{
	self->y += 0.25;

	if (self->y >= self->endY)
	{
		stopSound(self->health);

		self->inUse = FALSE;
	}

	if (prand() % 2 == 0)
	{
		addSmoke(self->x + prand() % self->w, self->endY - prand() % 10, "decoration/dust");
	}
}
