tibia-client/src/framework/luascript/luaobject.cpp

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/*
* Copyright (c) 2010-2011 OTClient <https://github.com/edubart/otclient>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
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#include "luaobject.h"
#include "luainterface.h"
LuaObject::LuaObject() : m_fieldsTableRef(-1)
{
}
LuaObject::~LuaObject()
{
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releaseLuaFieldsTable();
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}
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void LuaObject::releaseLuaFieldsTable()
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{
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if(m_fieldsTableRef != -1) {
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g_lua.unref(m_fieldsTableRef);
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m_fieldsTableRef = -1;
}
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}
void LuaObject::luaSetField(const std::string& key)
{
// create fields table on the fly
if(m_fieldsTableRef == -1) {
g_lua.newTable(); // create fields table
m_fieldsTableRef = g_lua.ref(); // save a reference for it
}
g_lua.getRef(m_fieldsTableRef); // push the table
g_lua.insert(-2); // move the value to the top
g_lua.setField(key); // set the field
g_lua.pop(); // pop the fields table
}
void LuaObject::luaGetField(const std::string& key)
{
if(m_fieldsTableRef != -1) {
g_lua.getRef(m_fieldsTableRef); // push the obj's fields table
g_lua.getField(key); // push the field value
g_lua.remove(-2); // remove the table
} else {
g_lua.pushNil();
}
}
int LuaObject::getUseCount()
{
return shared_from_this().use_count() - 1;
}