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/* ScummVM - Scumm Interpreter
 * Copyright (C) 2005-2006 The ScummVM project
 * 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
 * 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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * $URL: https://svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-0-9-1/engines/kyra/animator.h $
 * $Id: animator.h 20493 2006-02-11 08:31:13Z vinterstum $


namespace Kyra {
class KyraEngine;
class Screen;

struct AnimObject {
      uint8 index;
      uint32 active;
      uint32 refreshFlag;
      uint32 bkgdChangeFlag;
      bool disable;
      uint32 flags;
      int16 drawY;
      uint8 *sceneAnimPtr;
      int16 animFrameNumber;
      uint8 *background;
      uint16 rectSize;
      int16 x1, y1;
      int16 x2, y2;
      uint16 width;
      uint16 height;
      uint16 width2;
      uint16 height2;
      AnimObject *nextAnimObject;

class ScreenAnimator {
      ScreenAnimator(KyraEngine *vm, OSystem *system);
      virtual ~ScreenAnimator();

      operator bool() const { return _initOk; }

      void init(int actors, int items, int sprites);
      void close();

      AnimObject *objects() { return _screenObjects; }
      AnimObject *actors() { return _actors; }
      AnimObject *items() { return _items; }
      AnimObject *sprites() { return _sprites; }

      void initAnimStateList();
      void preserveAllBackgrounds();
      void flagAllObjectsForBkgdChange();
      void flagAllObjectsForRefresh();
      void restoreAllObjectBackgrounds();
      void preserveAnyChangedBackgrounds();
      virtual void prepDrawAllObjects();
      void copyChangedObjectsForward(int refreshFlag);

      void updateAllObjectShapes();
      void animRemoveGameItem(int index);
      void animAddGameItem(int index, uint16 sceneId);
      void animAddNPC(int character);
      void animRefreshNPC(int character);

      void clearQueue() { _objectQueue = 0; }
      void addObjectToQueue(AnimObject *object);
      void refreshObject(AnimObject *object);
      void makeBrandonFaceMouse();
      void setBrandonAnimSeqSize(int width, int height);
      void resetBrandonAnimSeqSize();
      void setCharacterDefaultFrame(int character);
      void setCharactersHeight();

      int16 fetchAnimWidth(const uint8 *shape, int16 mult);
      int16 fetchAnimHeight(const uint8 *shape, int16 mult);

      int _noDrawShapesFlag;
      bool _updateScreen;
      uint16 _brandonDrawFrame;
      int _brandonScaleX;
      int _brandonScaleY;

      KyraEngine *_vm;
      Screen *_screen;
      OSystem *_system;
      bool _initOk;

      AnimObject *_screenObjects;

      AnimObject *_actors;
      AnimObject *_items;
      AnimObject *_sprites;

      AnimObject *objectRemoveQueue(AnimObject *queue, AnimObject *rem);
      AnimObject *objectAddHead(AnimObject *queue, AnimObject *head);
      AnimObject *objectQueue(AnimObject *queue, AnimObject *add);

      void preserveOrRestoreBackground(AnimObject *obj, bool restore);

      AnimObject *_objectQueue;

      int _brandonAnimSeqSizeWidth;
      int _brandonAnimSeqSizeHeight;
} // end of namespace Kyra


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