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/*
Minetest
Copyright (C) 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.
*/

#ifndef GAME_HEADER
#define GAME_HEADER

#include "irrlichttypes_extrabloated.h"
#include <string>
#include "keycode.h"
#include <list>

class KeyList : protected std::list<KeyPress>
{
	typedef std::list<KeyPress> super;
	typedef super::iterator iterator;
	typedef super::const_iterator const_iterator;

	virtual const_iterator find(const KeyPress &key) const
	{
		const_iterator f(begin());
		const_iterator e(end());
		while (f!=e) {
			if (*f == key)
				return f;
			++f;
		}
		return e;
	}

	virtual iterator find(const KeyPress &key)
	{
		iterator f(begin());
		iterator e(end());
		while (f!=e) {
			if (*f == key)
				return f;
			++f;
		}
		return e;
	}

public:
	void clear() { super::clear(); }

	void set(const KeyPress &key)
	{
		if (find(key) == end())
			push_back(key);
	}

	void unset(const KeyPress &key)
	{
		iterator p(find(key));
		if (p != end())
			erase(p);
	}

	void toggle(const KeyPress &key)
	{
		iterator p(this->find(key));
		if (p != end())
			erase(p);
		else
			push_back(key);
	}

	bool operator[](const KeyPress &key) const
	{
		return find(key) != end();
	}
};

class InputHandler
{
public:
	InputHandler()
	{
	}
	virtual ~InputHandler()
	{
	}

	virtual bool isKeyDown(const KeyPress &keyCode) = 0;
	virtual bool wasKeyDown(const KeyPress &keyCode) = 0;
	
	virtual v2s32 getMousePos() = 0;
	virtual void setMousePos(s32 x, s32 y) = 0;

	virtual bool getLeftState() = 0;
	virtual bool getRightState() = 0;

	virtual bool getLeftClicked() = 0;
	virtual bool getRightClicked() = 0;
	virtual void resetLeftClicked() = 0;
	virtual void resetRightClicked() = 0;