base_object.h

/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */
 
#ifndef ULTIMA_SHARED_CORE_BASE_OBJECT_H
#define ULTIMA_SHARED_CORE_BASE_OBJECT_H
 
#include "common/scummsys.h"
#include "common/array.h"
#include "common/hash-str.h"
#include "common/list.h"
#include "ultima/shared/core/file.h"
 
namespace Ultima {
namespace Shared {
 
class BaseObject;
 
class ClassDef;
typedef ClassDef(*ClassDefFn)();
 
class ClassDef {
private:
    ClassDefFn _parentFn;
public:
    const char *_className;
public:
    ClassDef(const char *className, const ClassDefFn parentFn) :
        _className(className), _parentFn(parentFn) {
    }
 
    bool hasParent() const {
        return _parentFn != nullptr;
    }
    ClassDef parent() const {
        return (*_parentFn)();
    }
    bool operator==(const ClassDef &right) const {
        return !strcmp(_className, right._className);
    }
};
 
#define CLASSDEF \
    static ::Ultima::Shared::ClassDef type(); \
    ::Ultima::Shared::ClassDef getType() const override { return type(); }
 
class BaseObject {
public:
        static ::Ultima::Shared::ClassDef type();
        virtual ::Ultima::Shared::ClassDef getType() const { return type(); }
        virtual ~BaseObject() {
    }
 
    bool isInstanceOf(const ClassDef &classDef) const;
};
 
} // End of namespace Shared
} // End of namespace Ultima
 
#endif