script.cpp

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//            Copyright (C) 2004-2007 by The Allacrost Project
//                         All Rights Reserved
//
// This code is licensed under the GNU GPL version 2. It is free software
// and you may modify it and/or redistribute it under the terms of this license.
// See http://www.gnu.org/copyleft/gpl.html for details.

#include <iostream>
#include <stdarg.h>

#include "script.h"

using namespace std;
using namespace luabind;

using namespace hoa_utils;
using namespace hoa_script::private_script;

template<> hoa_script::GameScript* Singleton<hoa_script::GameScript>::_singleton_reference = NULL;

namespace hoa_script {

GameScript* ScriptManager = NULL;
bool SCRIPT_DEBUG = false;

//-----------------------------------------------------------------------------
// GameScript Class Functions
//-----------------------------------------------------------------------------

GameScript::GameScript() {
  if (SCRIPT_DEBUG) cout << "SCRIPT: GameScript constructor invoked." << endl;

  // Initialize Lua and LuaBind
  _global_state = lua_open();
  luabind::open(_global_state);
  lua_baselibopen(_global_state);
  lua_iolibopen(_global_state);
  lua_strlibopen(_global_state);
  lua_mathlibopen(_global_state);
}



GameScript::~GameScript() {
  if (SCRIPT_DEBUG) cout << "SCRIPT: GameScript destructor invoked." << endl;

  _open_files.clear();
  lua_close(_global_state);
  _global_state = NULL;
}



bool GameScript::SingletonInitialize() {
  // TODO: Open the user setting's file and apply those settings
  return true;
}



void GameScript::HandleLuaError(luabind::error& err) {
  lua_State *state = err.state();
  cerr << "SCRIPT ERROR: a run-time Lua error has occured with the following error message:\n  " << endl;
  cerr << lua_tostring(state, lua_gettop(state)) << endl;
  lua_pop(state, 1);
}



void GameScript::HandleCastError(luabind::cast_failed& err) {
  cerr << "SCRIPT ERROR: the return value of a Lua function call could not be successfully converted "
    << "to the specified C++ type: " << err.what() << endl;
}



void GameScript::_AddOpenFile(ScriptDescriptor* sd) {
  // NOTE: Function assumes that the file is not already open
  _open_files.insert(make_pair(sd->_filename, sd));
}



void GameScript::_RemoveOpenFile(ScriptDescriptor* sd) {
  // NOTE: Function assumes that the ScriptDescriptor file is already open
  _open_files.erase(sd->_filename);
}



bool GameScript::IsFileOpen(const std::string& filename) {
  return false; // TEMP: working on resolving the issue with files being opened multiple times

  if (_open_files.find(filename) != _open_files.end()) {
    return true;
  }
  return false;
}

} // namespace hoa_script

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