objectmanager.h

swain-0.5.2.zip的源代码,比较好用,希望大家喜欢.

/*
This file is part of SWAIN (http://sourceforge.net/projects/swain).
Copyright (C) 2006  Daniel Lindstr鰉 and Daniel Nilsson

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.
*/
#pragma once

// Forward declaration of classes defined in this file, must be before includes.
class ObjectManager;
class Iterator;

#include "coords.h"
#include "Object.h"
#include "Canvas.h"
#include "map.h"

enum LAYER {
	LAYER_BACK,
	LAYER_NORMAL,
	LAYER_FRONT,
	NUM_LAYERS
};

const int MAX_OBJECTS = 1024;

class ObjectManager {
	friend class Iterator;
private:
	// TODO: Use a dynamic linked list instead of a fixed sized array!
	Object *objects[NUM_LAYERS][MAX_OBJECTS];
	int counts[NUM_LAYERS];
	Map<Object *> *map;
	CRITICAL_SECTION lock;
	Canvas *canvas;
	int oid_count, clientid;
public:
	ObjectManager(int clientid);
	~ObjectManager(void);
	void setCanvas(Canvas *c);
	Iterator *getIterator(int layer);
	int addObject(Object *obj, int layer);
	int addObject(Object *obj, int layer, int oid);
	Object *getObject(int oid);
	void deleteObject(Object *obj);
	void objectMoved(Object *obj, FRECT *oldrect);
	void objectChanged(Object *obj, FRECT *changed);
	void clearLayer(LAYER layer);
};

class Iterator {
	ObjectManager *objman;
	int layer;
	int pos;
public:
	Iterator(ObjectManager *om, int l);
	~Iterator(void);

	Object *getNext(void);
	bool hasNext(void);
};