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92 lines
2.5 KiB
C++
92 lines
2.5 KiB
C++
/* ResidualVM - A 3D game interpreter
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*
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* ResidualVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the AUTHORS
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef STARK_RESOURCES_RESOURCE_REFERENCE_H
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#define STARK_RESOURCES_RESOURCE_REFERENCE_H
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#include "common/array.h"
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#include "common/stream.h"
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#include "engines/stark/resources/object.h"
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namespace Stark {
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/**
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* A reference to a resource.
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*
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* Internally, the referenced resource is designed by its path
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* in the resource tree.
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*
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*/
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class ResourceReference {
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public:
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ResourceReference();
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Common::String describe() const;
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/** Read the reference from a stream */
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void loadFromStream(Common::ReadStream *stream);
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/** Write the reference to a stream */
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void saveToStream(Common::WriteStream *stream);
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/** Make the reference point to the specified object */
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void buildFromResource(Resources::Object *resource);
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/** Resolve the reference to the actual resource */
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template <class T>
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T* resolve() const;
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/** Return true if this reference is a null pointer */
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bool empty() const;
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/** Can this reference be resolved using currently loaded archives? */
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bool canResolve() const;
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private:
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void addPathElement(Resources::Type type, uint16 index);
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Resources::Object *resolve() const;
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class PathElement {
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public:
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PathElement(Resources::Type type, uint16 index);
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Common::String describe() const;
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Resources::Type getType() const { return _type; }
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uint16 getIndex() const { return _index; }
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private:
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Resources::Type _type;
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uint16 _index;
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};
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Common::Array<PathElement> _path;
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};
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template<class T>
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T* ResourceReference::resolve() const {
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return Resources::Object::cast<T>(resolve());
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}
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} // End of namespace Stark
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#endif // STARK_RESOURCES_RESOURCE_REFERENCE_H
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