activeobject.h

/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#pragma once

#include "irr_aabb3d.h"
#include <string>

enum ActiveObjectType {
	ACTIVEOBJECT_TYPE_INVALID = 0,
	ACTIVEOBJECT_TYPE_TEST = 1,
// Deprecated stuff
	ACTIVEOBJECT_TYPE_ITEM = 2,
//	ACTIVEOBJECT_TYPE_RAT = 3,
//	ACTIVEOBJECT_TYPE_OERKKI1 = 4,
//	ACTIVEOBJECT_TYPE_FIREFLY = 5,
	ACTIVEOBJECT_TYPE_MOBV2 = 6,
// End deprecated stuff
	ACTIVEOBJECT_TYPE_LUAENTITY = 7,
// Special type, not stored as a static object
	ACTIVEOBJECT_TYPE_PLAYER = 100,
// Special type, only exists as CAO
	ACTIVEOBJECT_TYPE_GENERIC = 101,
};
// Other types are defined in content_object.h

struct ActiveObjectMessage
{
	ActiveObjectMessage(u16 id_, bool reliable_=true, const std::string &data_ = "") :
		id(id_),
		reliable(reliable_),
		datastring(data_)
	{}

	u16 id;
	bool reliable;
	std::string datastring;
};

/*
	Parent class for ServerActiveObject and ClientActiveObject
*/
class ActiveObject
{
public:
	ActiveObject(u16 id):
		m_id(id)
	{
	}

	u16 getId() const
	{
		return m_id;
	}

	void setId(u16 id)
	{
		m_id = id;
	}

	virtual ActiveObjectType getType() const = 0;


	/*!
	 * Returns the collision box of the object.
	 * This box is translated by the object's
	 * location.
	 * The box's coordinates are world coordinates.
	 * @returns true if the object has a collision box.
	 */
	virtual bool getCollisionBox(aabb3f *toset) const = 0;


	/*!
	 * Returns the selection box of the object.
	 * This box is not translated when the
	 * object moves.
	 * The box's coordinates are world coordinates.
	 * @returns true if the object has a selection box.
	 */
	virtual bool getSelectionBox(aabb3f *toset) const = 0;


	virtual bool collideWithObjects() const = 0;
protected:
	u16 m_id; // 0 is invalid, "no id"
};