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// * This file is part of the COLOBOT source code
// * Copyright (C) 2001-2008, Daniel ROUX & EPSITEC SA, www.epsitec.ch
// *
// * 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 "common/event.h"
#include "common/iman.h"
#include "common/logger.h"
static EventType g_uniqueEventType = EVENT_USER;
EventType GetUniqueEventType()
{
int i = static_cast<int>(g_uniqueEventType+1);
g_uniqueEventType = static_cast<EventType>(i);
return g_uniqueEventType;
}
CEventQueue::CEventQueue(CInstanceManager* iMan)
{
m_iMan = iMan;
m_iMan->AddInstance(CLASS_EVENT, this);
Flush();
}
CEventQueue::~CEventQueue()
{
}
void CEventQueue::Flush()
{
m_head = 0;
m_tail = 0;
m_total = 0;
}
/** If the maximum size of queue has been reached, returns \c false.
Else, adds the event to the queue and returns \c true. */
bool CEventQueue::AddEvent(const Event &event)
{
if ( m_total >= MAX_EVENT_QUEUE )
{
GetLogger()->Warn("Event queue flood!\n");
return false;
}
m_fifo[m_head++] = event;
if ( m_head >= MAX_EVENT_QUEUE ) m_head = 0;
m_total ++;
return true;
}
/** If the queue is empty, returns \c false.
Else, gets the event from the front, puts it into \a event and returns \c true. */
bool CEventQueue::GetEvent(Event &event)
{
if ( m_head == m_tail ) return false;
event = m_fifo[m_tail++];
if ( m_tail >= MAX_EVENT_QUEUE ) m_tail = 0;
m_total --;
return true;
}
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