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88 lines
3.5 KiB
C++
88 lines
3.5 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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, see <http://www.gnu.org/licenses/>.
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*
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*/
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//=============================================================================
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//
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// Managed object, which size and contents are defined by user script
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//
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//=============================================================================
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#ifndef AGS_ENGINE_DYNOBJ__SCRIPTUSERSTRUCT_H
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#define AGS_ENGINE_DYNOBJ__SCRIPTUSERSTRUCT_H
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#include "ags/engine/ac/dynobj/cc_ags_dynamic_object.h"
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namespace AGS3 {
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struct ScriptUserObject final : ICCDynamicObject {
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public:
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ScriptUserObject();
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protected:
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virtual ~ScriptUserObject();
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public:
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static ScriptUserObject *CreateManaged(size_t size);
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void Create(const char *data, AGS::Shared::Stream *in, size_t size);
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// return the type name of the object
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const char *GetType() override;
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int Dispose(const char *address, bool force) override;
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// serialize the object into BUFFER (which is BUFSIZE bytes)
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// return number of bytes used
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int Serialize(const char *address, char *buffer, int bufsize) override;
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void Unserialize(int index, AGS::Shared::Stream *in, size_t data_sz);
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// Support for reading and writing object values by their relative offset
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const char *GetFieldPtr(const char *address, intptr_t offset) override;
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void Read(const char *address, intptr_t offset, void *dest, int size) override;
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uint8_t ReadInt8(const char *address, intptr_t offset) override;
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int16_t ReadInt16(const char *address, intptr_t offset) override;
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int32_t ReadInt32(const char *address, intptr_t offset) override;
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float ReadFloat(const char *address, intptr_t offset) override;
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void Write(const char *address, intptr_t offset, void *src, int size) override;
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void WriteInt8(const char *address, intptr_t offset, uint8_t val) override;
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void WriteInt16(const char *address, intptr_t offset, int16_t val) override;
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void WriteInt32(const char *address, intptr_t offset, int32_t val) override;
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void WriteFloat(const char *address, intptr_t offset, float val) override;
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private:
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// NOTE: we use signed int for Size at the moment, because the managed
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// object interface's Serialize() function requires the object to return
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// negative value of size in case the provided buffer was not large
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// enough. Since this interface is also a part of Plugin API, we would
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// need more significant change to program before we could use different
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// approach.
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int32_t _size;
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char *_data;
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};
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// Helper functions for setting up custom managed structs based on ScriptUserObject.
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namespace ScriptStructHelpers {
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// Creates a managed Point object, represented as a pair of X and Y coordinates.
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ScriptUserObject *CreatePoint(int x, int y);
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} // namespace ScriptStructHelpers
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} // namespace AGS3
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#endif
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