mirror of https://github.com/minetest/minetest.git
155 lines
3.6 KiB
C++
155 lines
3.6 KiB
C++
/*
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Minetest
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Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "nodetimer.h"
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#include "log.h"
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#include "serialization.h"
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#include "util/serialize.h"
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#include "constants.h" // MAP_BLOCKSIZE
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/*
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NodeTimer
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*/
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void NodeTimer::serialize(std::ostream &os) const
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{
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writeF1000(os, timeout);
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writeF1000(os, elapsed);
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}
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void NodeTimer::deSerialize(std::istream &is)
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{
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timeout = readF1000(is);
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elapsed = readF1000(is);
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}
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/*
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NodeTimerList
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*/
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void NodeTimerList::serialize(std::ostream &os, u8 map_format_version) const
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{
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if(map_format_version == 24){
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// Version 0 is a placeholder for "nothing to see here; go away."
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if(m_data.size() == 0){
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writeU8(os, 0); // version
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return;
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}
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writeU8(os, 1); // version
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writeU16(os, m_data.size());
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}
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if(map_format_version >= 25){
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writeU8(os, 2+4+4);
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writeU16(os, m_data.size());
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}
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for(std::map<v3s16, NodeTimer>::const_iterator
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i = m_data.begin();
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i != m_data.end(); i++){
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v3s16 p = i->first;
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NodeTimer t = i->second;
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u16 p16 = p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X;
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writeU16(os, p16);
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t.serialize(os);
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}
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}
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void NodeTimerList::deSerialize(std::istream &is, u8 map_format_version)
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{
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m_data.clear();
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if(map_format_version == 24){
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u8 timer_version = readU8(is);
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if(timer_version == 0)
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return;
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if(timer_version != 1)
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throw SerializationError("unsupported NodeTimerList version");
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}
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if(map_format_version >= 25){
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u8 timer_data_len = readU8(is);
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if(timer_data_len != 2+4+4)
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throw SerializationError("unsupported NodeTimer data length");
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}
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u16 count = readU16(is);
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for(u16 i=0; i<count; i++)
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{
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u16 p16 = readU16(is);
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v3s16 p;
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p.Z = p16 / MAP_BLOCKSIZE / MAP_BLOCKSIZE;
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p16 &= MAP_BLOCKSIZE * MAP_BLOCKSIZE - 1;
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p.Y = p16 / MAP_BLOCKSIZE;
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p16 &= MAP_BLOCKSIZE - 1;
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p.X = p16;
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NodeTimer t;
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t.deSerialize(is);
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if(t.timeout <= 0)
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{
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infostream<<"WARNING: NodeTimerList::deSerialize(): "
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<<"invalid data at position"
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<<"("<<p.X<<","<<p.Y<<","<<p.Z<<"): Ignoring."
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<<std::endl;
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continue;
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}
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if(m_data.find(p) != m_data.end())
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{
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infostream<<"WARNING: NodeTimerList::deSerialize(): "
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<<"already set data at position"
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<<"("<<p.X<<","<<p.Y<<","<<p.Z<<"): Ignoring."
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<<std::endl;
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continue;
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}
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m_data.insert(std::make_pair(p, t));
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}
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}
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std::map<v3s16, NodeTimer> NodeTimerList::step(float dtime)
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{
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std::map<v3s16, NodeTimer> elapsed_timers;
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// Increment timers
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for(std::map<v3s16, NodeTimer>::iterator
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i = m_data.begin();
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i != m_data.end(); i++){
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v3s16 p = i->first;
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NodeTimer t = i->second;
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t.elapsed += dtime;
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if(t.elapsed >= t.timeout)
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elapsed_timers.insert(std::make_pair(p, t));
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else
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i->second = t;
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}
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// Delete elapsed timers
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for(std::map<v3s16, NodeTimer>::const_iterator
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i = elapsed_timers.begin();
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i != elapsed_timers.end(); i++){
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v3s16 p = i->first;
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m_data.erase(p);
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}
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return elapsed_timers;
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}
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