/* ScummVM - Scumm Interpreter
 * Copyright (C) 2003-2004 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
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * $Header: /cvsroot/scummvm/scummvm/queen/cutaway.h,v 1.34.2.2 2004/04/08 18:00:20 cyx Exp $
 *
 */

#ifndef QUEENCUTAWAY_H
#define QUEENCUTAWAY_H

#include "common/util.h"
#include "queen/structs.h"

namespace Queen {

class QueenEngine;

class Cutaway {
	public:
		//! Public interface to run a cutaway from a file
		static void run(
				const char *filename,
				char *nextFilename,
				QueenEngine *vm);

	public:
		//! Collection of constants used by QueenCutaway
		enum {
			PREVIOUS_ROOM = 0,
			CURRENT_ROOM = 0,
			OBJECT_ROOMFADE = -1,
			PERSON_JOE = -1,
			OBJECT_JOE = 0,
			MAX_PERSON_COUNT = 6,
			CUTAWAY_BANK = 8,
			MAX_BANK_NAME_COUNT = 5,
			MAX_FILENAME_LENGTH = 12,
			MAX_FILENAME_SIZE = (MAX_FILENAME_LENGTH + 1),
			MAX_PERSON_FACE_COUNT = 13,
			MAX_STRING_LENGTH = 255,
			MAX_STRING_SIZE = (MAX_STRING_LENGTH + 1),
			LEFT = 1,
			RIGHT = 2,
			FRONT = 3,
			BACK = 4
		};

		//! Different kinds of cutaway objects
		enum ObjectType {
			OBJECT_TYPE_ANIMATION               = 0,
			OBJECT_TYPE_PERSON                  = 1,
			OBJECT_TYPE_NO_ANIMATION            = 2,
			OBJECT_TYPE_TEXT_SPEAK              = 3,
			OBJECT_TYPE_TEXT_DISPLAY_AND_SPEAK  = 4,
			OBJECT_TYPE_TEXT_DISPLAY            = 5
		};

	private:
		//! Data for a cutaway object
		struct CutawayObject {
			int16 objectNumber;    // 0 = JOE, -1 = MESSAGE
			int16 moveToX;
			int16 moveToY;
			int16 bank;             // 0 = PBOB, 13 = Joe Bank, else BANK NAMEstr()
			int16 animList;
			int16 execute;          // 1 Yes, 0 No
			int16 limitBobX1;
			int16 limitBobY1;
			int16 limitBobX2;
			int16 limitBobY2;
			int16 specialMove;
			int16 animType;        // 0 - Packet, 1 - Amal, 2 - Unpack
			int16 fromObject;
			int16 bobStartX;
			int16 bobStartY;
			int16 room;
			int16 scale;

			// Variables derived from the variables above
			int song;

			//! People to turn on
			int person[MAX_PERSON_COUNT];

			//! Number of elements used in _person array
			int personCount;
		};

		struct CutawayAnim {
			int16 object;
			int16 unpackFrame;          // Frame to unpack
			int16 speed;
			int16 bank;
			int16 mx;
			int16 my;
			int16 cx;
			int16 cy;
			int16 scale;
			int16 currentFrame;  // Index to Current Frame
			int16 originalFrame;  // Index to Original Object Frame
			int16 song;
			bool flip;		// set this if unpackFrame is negative
		};

		struct ObjectDataBackup {
			int index;
			int16 name;
			int16 image;
		};

		struct PersonFace {
		  int16 index;
		  int16 image;
		};

		QueenEngine *_vm;

		//! Raw .cut file data (without 20 byte header)
		byte *_fileData;

		//! COMPANEL
		int16 _comPanel;

		//! Game state data inside of _fileDat
		byte *_gameStatePtr;

		//! Actual cutaway data inside of _fileData
		byte *_objectData;

		//! Pointer to next sentence string in _fileData
		byte *_nextSentence;

		//! ???
		bool _roomFade;

		//! Number of cutaway objects at _cutawayData
		int16 _cutawayObjectCount;

		//! This cutaway is followed by another
		bool _anotherCutaway;

		//! Room before cutaway
		int _initialRoom; 

		//! Temporary room for cutaway
		int _temporaryRoom; 

		//! Room to stay in 
		int _finalRoom; 

		//! Bank names
		char _bankNames[MAX_BANK_NAME_COUNT][MAX_FILENAME_SIZE];

		//! Filename without ".cut"
		char _basename[MAX_FILENAME_SIZE];

		//! Name of .dog file
		char _talkFile[MAX_FILENAME_SIZE];

		//! Person to talk to
		int16 _talkTo;

		//! Used by changeRooms
		ObjectDataBackup _personData[MAX_PERSON_COUNT];

		//! Number of elements used in _personData array
		int _personDataCount;

		//! Used by handlePersonRecord()
		PersonFace _personFace[MAX_PERSON_FACE_COUNT];

		//! Number of entries in _personFace array
		int _personFaceCount;

		//! Play this song when leaving cutaway
		int16 _lastSong;

		//! Song played before running comic.cut
		int16 _songBeforeComic;

		int16 _currentImage;

		Cutaway(const char *filename, 
				QueenEngine *vm);
		~Cutaway();

		//! Run this cutaway object 
		void run(char *nextFilename);

		//! Load cutaway data from file 
		void load(const char *filename);

		//! Used by load to read string data
		void loadStrings(byte *ptr);

		//! Get persons
		byte *turnOnPeople(byte *ptr, CutawayObject &object);

		//! Limit the BOB
		void limitBob(CutawayObject &object);

		//! This cutaway object occurs in another room
		void changeRooms(CutawayObject &object);

		//! Get the object type for this CutawayObject
		ObjectType getObjectType(CutawayObject &object);

		//! Perform actions for an animation
		byte *handleAnimation(byte *ptr, CutawayObject &object);

		//! Perform actions for a person record
		void handlePersonRecord(
				int index, 
				CutawayObject &object, 
				const char *sentence);
		
		//! Perform text actions
		void handleText(
				int index, 
				ObjectType type, 
				CutawayObject &object, 
				const char *sentence);

		//! Restore Logic::_objectData from _personData
		void restorePersonData();

		//! Stop the cutaway
		void stop();

		//! Update game state after cutaway
		void updateGameState();

		//! Prepare for talk after cutaway
		void talk(char *nextFilename);

		//! Get CutawayAnim data from ptr and return new ptr
		byte *getCutawayAnim(byte *ptr, int header, CutawayAnim &anim);

		//! Special animation
		int makeComplexAnimation(int16 currentImage, CutawayAnim *objAnim, int frameCount);

		//! Read a CutawayObject from ptr and return new ptr
		static byte *getCutawayObject(byte *ptr, CutawayObject &object);

		//! Dump a CutawayObject with debug()
		void dumpCutawayObject(int index, CutawayObject &object);

		//! Used by handleText()
		int countSpaces(ObjectType type, const char *segment);

		//! Scale Joe
		int scale(CutawayObject &object);

		//! Dump CutawayAnum data with debug()
		static void dumpCutawayAnim(CutawayAnim &anim);

		bool inRange(int16 x, int16 l, int16 h) const { return (x <= h && x >= l); }
};

} // End of namespace Queen

#endif
