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/*
Minetest
Copyright (C) 2010-2013 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 "nodetimer.h"
#include "log.h"
#include "serialization.h"
#include "util/serialize.h"
#include "constants.h" // MAP_BLOCKSIZE
/*
NodeTimer
*/
void NodeTimer::serialize(std::ostream &os) const
{
writeF1000(os, timeout);
writeF1000(os, elapsed);
}
void NodeTimer::deSerialize(std::istream &is)
{
timeout = readF1000(is);
elapsed = readF1000(is);
}
/*
NodeTimerList
*/
void NodeTimerList::serialize(std::ostream &os, u8 map_format_version) const
{
if(map_format_version == 24){
// Version 0 is a placeholder for "nothing to see here; go away."
if(m_data.empty()){
writeU8(os, 0); // version
return;
}
writeU8(os, 1); // version
writeU16(os, m_data.size());
}
if(map_format_version >= 25){
writeU8(os, 2+4+4);
writeU16(os, m_data.size());
}
for(std::map<v3s16, NodeTimer>::const_iterator
i = m_data.begin();
i != m_data.end(); i++){
v3s16 p = i->first;
NodeTimer t = i->second;
u16 p16 = p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X;
writeU16(os, p16);
t.serialize(os);
}
}
void NodeTimerList::deSerialize(std::istream &is, u8 map_format_version)
{
m_data.clear();
if(map_format_version == 24){
u8 timer_version = readU8(is);
if(timer_version == 0)
return;
if(timer_version != 1)
throw SerializationError("unsupported NodeTimerList version");
}
if(map_format_version >= 25){
u8 timer_data_len = readU8(is);
if(timer_data_len != 2+4+4)
throw SerializationError("unsupported NodeTimer data length");
}
u16 count = readU16(is);
for(u16 i=0; i<count; i++)
{
u16 p16 = readU16(is);
v3s16 p;
p.Z = p16 / MAP_BLOCKSIZE / MAP_BLOCKSIZE;
p16 &= MAP_BLOCKSIZE * MAP_BLOCKSIZE - 1;
p.Y = p16 / MAP_BLOCKSIZE;
p16 &= MAP_BLOCKSIZE - 1;
p.X = p16;
NodeTimer t;
t.deSerialize(is);
if(t.timeout <= 0)
{
infostream<<"WARNING: NodeTimerList::deSerialize(): "
<<"invalid data at position"
<<"("<<p.X<<","<<p.Y<<","<<p.Z<<"): Ignoring."
<<std::endl;
continue;
}
if(m_data.find(p) != m_data.end())
{
infostream<<"WARNING: NodeTimerList::deSerialize(): "
<<"already set data at position"
<<"("<<p.X<<","<<p.Y<<","<<p.Z<<"): Ignoring."
<<std::endl;
continue;
}
m_data.insert(std::make_pair(p, t));
}
}
std::map<v3s16, NodeTimer> NodeTimerList::step(float dtime)
{
std::map<v3s16, NodeTimer> elapsed_timers;
// Increment timers
for(std::map<v3s16, NodeTimer>::iterator
i = m_data.begin();
i != m_data.end(); i++){
v3s16 p = i->first;
NodeTimer t = i->second;
t.elapsed += dtime;
if(t.elapsed >= t.timeout)
elapsed_timers.insert(std::make_pair(p, t));
else
i->second = t;
}
// Delete elapsed timers
for(std::map<v3s16, NodeTimer>::const_iterator
i = elapsed_timers.begin();
i != elapsed_timers.end(); i++){
v3s16 p = i->first;
m_data.erase(p);
}
return elapsed_timers;
}
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