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/* 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/>.
*
*/
#include "ags/lib/std/memory.h"
#include "ags/shared/util/stream.h"
#include "ags/engine/ac/dynobj/script_user_object.h"
namespace AGS3 {
using namespace AGS::Shared;
// return the type name of the object
const char *ScriptUserObject::GetType() {
return "UserObject";
}
ScriptUserObject::ScriptUserObject()
: _size(0)
, _data(nullptr) {
}
ScriptUserObject::~ScriptUserObject() {
delete[] _data;
}
/* static */ ScriptUserObject *ScriptUserObject::CreateManaged(size_t size) {
ScriptUserObject *suo = new ScriptUserObject();
suo->Create(nullptr, nullptr, size);
ccRegisterManagedObject(suo, suo);
return suo;
}
void ScriptUserObject::Create(const char *data, Stream *in, size_t size) {
delete[] _data;
_data = nullptr;
_size = size;
if (_size > 0) {
_data = new char[size];
if (data)
memcpy(_data, data, _size);
else if (in)
in->Read(_data, _size);
else
memset(_data, 0, _size);
}
}
int ScriptUserObject::Dispose(const char *address, bool force) {
delete this;
return 1;
}
int ScriptUserObject::Serialize(const char *address, char *buffer, int bufsize) {
if (_size > bufsize)
// buffer not big enough, ask for a bigger one
return -_size;
memcpy(buffer, _data, _size);
return _size;
}
void ScriptUserObject::Unserialize(int index, Stream *in, size_t data_sz) {
Create(nullptr, in, data_sz);
ccRegisterUnserializedObject(index, this, this);
}
const char *ScriptUserObject::GetFieldPtr(const char *address, intptr_t offset) {
return _data + offset;
}
void ScriptUserObject::Read(const char *address, intptr_t offset, void *dest, int size) {
memcpy(dest, _data + offset, size);
}
uint8_t ScriptUserObject::ReadInt8(const char *address, intptr_t offset) {
return *(uint8_t *)(_data + offset);
}
int16_t ScriptUserObject::ReadInt16(const char *address, intptr_t offset) {
return *(int16_t *)(_data + offset);
}
int32_t ScriptUserObject::ReadInt32(const char *address, intptr_t offset) {
return *(int32_t *)(_data + offset);
}
float ScriptUserObject::ReadFloat(const char *address, intptr_t offset) {
return *(float *)(_data + offset);
}
void ScriptUserObject::Write(const char *address, intptr_t offset, void *src, int size) {
memcpy((void *)(_data + offset), src, size);
}
void ScriptUserObject::WriteInt8(const char *address, intptr_t offset, uint8_t val) {
*(uint8_t *)(_data + offset) = val;
}
void ScriptUserObject::WriteInt16(const char *address, intptr_t offset, int16_t val) {
*(int16_t *)(_data + offset) = val;
}
void ScriptUserObject::WriteInt32(const char *address, intptr_t offset, int32_t val) {
*(int32_t *)(_data + offset) = val;
}
void ScriptUserObject::WriteFloat(const char *address, intptr_t offset, float val) {
*(float *)(_data + offset) = val;
}
// Allocates managed struct containing two ints: X and Y
ScriptUserObject *ScriptStructHelpers::CreatePoint(int x, int y) {
ScriptUserObject *suo = ScriptUserObject::CreateManaged(sizeof(int32_t) * 2);
suo->WriteInt32((const char *)suo, 0, x);
suo->WriteInt32((const char *)suo, sizeof(int32_t), y);
return suo;
}
} // namespace AGS3
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