/*
 *  The Mana World
 *  Copyright 2004 The Mana World Development Team
 *
 *  This file is part of The Mana World.
 *
 *  The Mana World 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.
 *
 *  The Mana World 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 The Mana World; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  $Id: animation.h 2430 2006-07-24 00:13:24Z b_lindeijer $
 */

#ifndef _TMW_ANIMATEDSPRITE_H
#define _TMW_ANIMATEDSPRITE_H

#include <map>
#include <string>
#include <SDL_types.h>

#include <libxml/tree.h>

class Action;
class Graphics;
class Spriteset;

/**
 * Defines a class to load an animation.
 */
class AnimatedSprite
{
    public:
        /**
         * Constructor.
         */
        AnimatedSprite(const std::string& animationFile, int variant);

        /**
         * Destructor.
         */
        ~AnimatedSprite();

        /**
         * Sets a new action using the current direction.
         */
        void
        play(const std::string& action);

        /**
         * Plays an action in a specified time.
         */
        void
        play(const std::string& action, int time);

        /**
         * Inform the animation of the passed time so that it can output the
         * correct animation phase.
         */
        void update(int time);

        /**
         * Draw the current animation phase at the coordinates given in screen
         * pixels.
         */
        bool
        draw(Graphics* graphics, Sint32 posX, Sint32 posY) const;

        /**
         * gets the width in pixels of the current animation phase.
         */
        int
        getWidth() const;

        /**
         * gets the height in pixels of the current animation phase.
         */
        int
        getHeight() const;

        /**
         * Sets the direction.
         */
        void
        setDirection(const std::string& direction)
        {
            mDirection = direction;
        }

    protected:
        /**
         * When there are no animations defined for the action "complete", its
         * animations become a copy of those of the action "with".
         */
        void
        substituteAction(const std::string& complete,
                         const std::string& with);

        typedef std::map<std::string, Spriteset*> Spritesets;
        typedef Spritesets::iterator SpritesetIterator;
        Spritesets mSpritesets;
        typedef std::map<std::string, Action*> Actions;
        typedef Actions::iterator ActionIterator;
        Actions mActions;
        Action *mAction;
        std::string mDirection;
        int mLastTime;
        float mSpeed;

    private:
        /**
         * Gets an integer property from an xmlNodePtr.
         *
         * TODO: Same function is present in MapReader. Should probably be
         * TODO: shared in a static utility class.
         */
        static int
        getProperty(xmlNodePtr node, const char* name, int def);

        /**
         * Gets a string property from an xmlNodePtr.
         */
        static std::string
        getProperty(xmlNodePtr node, const char* name, const std::string& def);
};

#endif