src/minimap.cpp


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/*
Minetest
Copyright (C) 2010-2015 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include "minimap.h"
#include "threading/mutex_auto_lock.h"
#include "threading/semaphore.h"
#include "clientmap.h"
#include "settings.h"
#include "nodedef.h"
#include "porting.h"
#include "util/numeric.h"
#include "util/string.h"
#include <math.h>


////
//// MinimapUpdateThread
////

MinimapUpdateThread::~MinimapUpdateThread()
{
	for (std::map<v3s16, MinimapMapblock *>::iterator
			it = m_blocks_cache.begin();
			it != m_blocks_cache.end(); ++it) {
		delete it->second;
	}

	for (std::deque<QueuedMinimapUpdate>::iterator
			it = m_update_queue.begin();