/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 *
 */

#ifndef M4_SCENE_H
#define M4_SCENE_H

class View;

#include "m4/assets.h"
#include "m4/font.h"
#include "m4/hotspot.h"
#include "m4/graphics.h"
#include "m4/viewmgr.h"
#include "m4/gui.h"
#include "m4/m4_views.h"
#include "m4/mads_logic.h"
#include "m4/mads_views.h"
#include "common/array.h"

namespace M4 {

#define TITLE_SCENE_BURGER 951		// 951 = intro, 901 = demo menu, 971 = first scene
#define MAINMENU_SCENE_BURGER 903
#define FIRST_SCENE 101
#define MAX_CHK_FILENAME_SIZE 144

#define INTERFACE_HEIGHT 106
#define MADS_SURFACE_HEIGHT 156

#define CHEAT_SEQUENCE_MAX 8

enum MADSVerbs {
	kVerbNone   = 0,
	kVerbLook	= 3,
	kVerbTake	= 4,
	kVerbPush	= 5,
	kVerbOpen	= 6,
	kVerbPut	= 7,
	kVerbTalkTo	= 8,
	kVerbGive	= 9,
	kVerbPull	= 10,
	kVerbClose	= 11,
	kVerbThrow	= 12,
	kVerbWalkTo	= 13
};

struct SceneResources {
	char artBase[MAX_CHK_FILENAME_SIZE];
	char pictureBase[MAX_CHK_FILENAME_SIZE];
	int32 hotspotCount;
	HotSpotList *hotspots;
	int32 parallaxCount;
	HotSpotList *parallax;
	int32 propsCount;
	HotSpotList *props;
	int32 frontY, backY;
	int32 frontScale, backScale;
	int16 depthTable[16];
	int32 railNodeCount;	// # of rails
};

class M4Engine;
class MadsEngine;
class InterfaceView;

class Scene : public View {
private:
	byte *_inverseColorTable;
	HotSpotList _sceneHotspots;
protected:
	int _currentScene;
	int _previousScene;
	GameInterfaceView *_interfaceSurface;
	M4Surface *_backgroundSurface;
	M4Surface *_codeSurface;
	RGBList *_palData;
	RGBList *_interfacePal;
	SceneResources _sceneResources;
public:
	Scene(MadsM4Engine *vm);
	virtual ~Scene();

	// Methods that differ between engines
	virtual void loadScene(int sceneNumber);
	virtual void leaveScene();
	virtual void loadSceneCodes(int sceneNumber, int index = 0) = 0;
	virtual void show();
	virtual void checkHotspotAtMousePos(int x, int y) = 0;
	virtual void leftClick(int x, int y) = 0;
	virtual void rightClick(int x, int y) = 0;
	virtual void setAction(int action, int objectId = -1) = 0;
	virtual void setStatusText(const char *text) = 0;
	virtual void update() = 0;

	// TODO: perhaps move playIntro() someplace else?
	void playIntro();
	void loadSceneResources(int sceneNumber);
	void loadSceneHotSpotsMads(int sceneNumber);
	void loadSceneInverseColorTable(int sceneNumber);
	void loadSceneSpriteCodes(int sceneNumber);
	void showSprites();
	void showHotSpots();
	void showCodes();
	int getCurrentScene() { return _currentScene; }
	M4Surface *getBackgroundSurface() const { return _backgroundSurface; }
	byte *getInverseColorTable() const { return _inverseColorTable; }
	void showInterface();
	void hideInterface();
	void showMADSV2TextBox(char *text, int x, int y, char *faceName);
	GameInterfaceView *getInterface() { return _interfaceSurface; };
	SceneResources getSceneResources() { return _sceneResources; };

	void onRefresh(RectList *rects, M4Surface *destSurface);
	bool onEvent(M4EventType eventType, int32 param1, int x, int y, bool &captureEvents);
};

class M4Scene : public Scene {
private:
	M4Engine *_vm;
	SpriteAsset *_sceneSprites;
	SpriteAsset *_walkerSprite;

	void loadSceneSprites(int sceneNumber);
	void nextCommonCursor();
public:
	M4Scene(M4Engine *vm);
	virtual ~M4Scene();

	// Methods that differ between engines
	virtual void loadScene(int sceneNumber);
	virtual void leaveScene() {};
	virtual void loadSceneCodes(int sceneNumber, int index = 0);
	virtual void show();
	virtual void checkHotspotAtMousePos(int x, int y);
	virtual void leftClick(int x, int y);
	virtual void rightClick(int x, int y);
	virtual void setAction(int action, int objectId = -1);
	virtual void setStatusText(const char *text);
	virtual void update();

	M4InterfaceView *getInterface() { return (M4InterfaceView *)_interfaceSurface; };
};

struct SpriteSlot {
	int16 spriteId;
	int16 scale;
	uint16 spriteListIndex;
};

struct TextDisplay {
	bool active;
	int spacing;
	Common::Rect bounds;
	int16 field_A;
	uint8 colour1, colour2;
	Font *font;
	char message[100];
};

struct DirtyArea {
	bool active;
	bool active2;
	Common::Rect bounds;
};

class MadsSceneInfo {
public:
	int sceneId;
	int artFileNum;
	int field_4;
	int width;
	int height;

	int objectCount;
	MadsObject objects[32];

	void load(int sceneId);	
};

typedef Common::Array<SpriteAsset *> SpriteAssetArray;

#define SPRITE_SLOTS_SIZE 50
#define TEXT_DISPLAY_SIZE 40
#define DIRTY_AREA_SIZE 90

class MadsScene : public Scene {
private:
	MadsEngine *_vm;

	int _currentAction;
	char _statusText[100];
	MadsSceneLogic _sceneLogic;
	MadsSceneInfo _sceneInfo;
	SpriteAsset *_playerSprites;
	SpriteAssetArray _sceneSprites;
	SpriteSlot _spriteSlots[50];
	TextDisplay _textDisplay[TEXT_DISPLAY_SIZE];
	DirtyArea _dirtyAreas[DIRTY_AREA_SIZE];
	int _spriteSlotsStart;

	void drawElements();
	void loadScene2(int sceneNumber, const char *aaName);
	void loadSceneTemporary();
public:
	char _aaName[100];
public:
	MadsScene(MadsEngine *vm);

	// Methods that differ between engines
	virtual void loadScene(int sceneNumber);
	virtual void leaveScene();
	virtual void loadSceneCodes(int sceneNumber, int index = 0);
	virtual void show();
	virtual void checkHotspotAtMousePos(int x, int y);
	virtual void leftClick(int x, int y);
	virtual void rightClick(int x, int y);
	virtual void setAction(int action, int objectId = -1);
	virtual void setStatusText(const char *text);
	virtual void update();

	int loadSceneSpriteSet(const char *setName);
	void loadPlayerSprites(const char *prefix);

	MadsInterfaceView *getInterface() { return (MadsInterfaceView *)_interfaceSurface; };
};

} // End of namespace M4

#endif