eliot/game/command.cpp

89 lines
1.9 KiB
C++

/*****************************************************************************
* Eliot
* Copyright (C) 2008-2012 Olivier Teulière
* Authors: Olivier Teulière <ipkiss @@ gmail.com>
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*****************************************************************************/
#include "command.h"
#include "debug.h"
INIT_LOGGER(game, Command);
INIT_LOGGER(game, UndoCmd);
Command::Command()
: m_executed(false), m_humanIndependent(true), m_autoExecutable(true)
{
}
void Command::execute()
{
ASSERT(!m_executed, "Command already executed!");
doExecute();
m_executed = true;
}
void Command::undo()
{
ASSERT(m_executed, "Command already undone!");
doUndo();
m_executed = false;
}
UndoCmd::UndoCmd(Command *cmd)
: m_cmd(cmd)
{
ASSERT(m_cmd != 0, "Null command given");
}
UndoCmd::~UndoCmd()
{
delete m_cmd;
}
bool UndoCmd::isAutoExecutable() const
{
return m_cmd->isAutoExecutable();
}
void UndoCmd::doExecute()
{
ASSERT(m_cmd->isExecuted(), "The wrapped command is not executed");
m_cmd->undo();
}
void UndoCmd::doUndo()
{
ASSERT(!m_cmd->isExecuted(), "The wrapped command is already executed");
m_cmd->execute();
}
wstring UndoCmd::toString() const
{
return L"UndoCmd (" + m_cmd->toString() + L")";
}