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/*
* The ManaPlus Client
* Copyright (C) 2011-2014 The ManaPlus Developers
*
* This file is part of The ManaPlus Client.
*
* 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
* 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 <http://www.gnu.org/licenses/>.
*/
/* _______ __ __ __ ______ __ __ _______ __ __
* / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
* / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
* / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
* / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
* /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
* \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
*
* Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
*
*
* Per Larsson a.k.a finalman
* Olof Naessén a.k.a jansem/yakslem
*
* Visit: http://guichan.sourceforge.net
*
* License: (BSD)
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of Guichan nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef GCN_INPUT_HPP
#define GCN_INPUT_HPP
#include "localconsts.h"
namespace gcn
{
class KeyInput;
class MouseInput;
/**
* Abstract class for providing functions for user input.
*
* Guichan contains implementations of Input for common
* libraries like the Allegro library, the HGE library,
* and the SDL library.
* To make Guichan usable with other libraries, an Input
* class must be implemented.
*
* @see AllegroInput, HGEInput, OpenLayerInput,
* SDLInput
*/
class Input
{
public:
/**
* Destructor.
*/
virtual ~Input(){ }
/**
* Checks if the key queue is empty, or not.
*
* @return True if the key queue is empty,
* false otherwise.
*/
virtual bool isKeyQueueEmpty() A_WARN_UNUSED = 0;
/**
* Dequeues the key input queue.
*
* @return The first key input in the key input queue.
*/
virtual KeyInput dequeueKeyInput() = 0;
/**
* Checks if the mouse queue is empyt, or not.
*
* @return True if the mouse queue is empty,
* false otherwise.
*/
virtual bool isMouseQueueEmpty() A_WARN_UNUSED = 0;
/**
* Dequeues the mouse input queue.
*
* @return The first mouse input in the mouse input queue.
*/
virtual MouseInput dequeueMouseInput() = 0;
/**
* Polls all exsisting input. Called when input should
* be polled. The function exists for compatibility reason
* where some libraries need to poll input at a certain
* logic rate.
*/
virtual void _pollInput() = 0;
};
} // namespace gcn
#endif // end GCN_INPUT_HPP
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