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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_timers.empty()) {
- writeU8(os, 0); // version
- return;
- }
- writeU8(os, 1); // version
- writeU16(os, m_timers.size());
- }
- if (map_format_version >= 25) {
- writeU8(os, 2 + 4 + 4); // length of the data for a single timer
- writeU16(os, m_timers.size());
- }
- for (const auto &timer : m_timers) {
- NodeTimer t = timer.second;
- NodeTimer nt = NodeTimer(t.timeout,
- t.timeout - (f32)(timer.first - m_time), t.position);
- v3s16 p = t.position;
- u16 p16 = p.Z * MAP_BLOCKSIZE * MAP_BLOCKSIZE + p.Y * MAP_BLOCKSIZE + p.X;
- writeU16(os, p16);
- nt.serialize(os);
- }
- }
- void NodeTimerList::deSerialize(std::istream &is, u8 map_format_version)
- {
- 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(p);
- t.deSerialize(is);
- if (t.timeout <= 0) {
- warningstream<<"NodeTimerList::deSerialize(): "
- <<"invalid data at position"
- <<"("<<p.X<<","<<p.Y<<","<<p.Z<<"): Ignoring."
- <<std::endl;
- continue;
- }
- if (m_iterators.find(p) != m_iterators.end()) {
- warningstream<<"NodeTimerList::deSerialize(): "
- <<"already set data at position"
- <<"("<<p.X<<","<<p.Y<<","<<p.Z<<"): Ignoring."
- <<std::endl;
- continue;
- }
- insert(t);
- }
- }
- std::vector<NodeTimer> NodeTimerList::step(float dtime)
- {
- std::vector<NodeTimer> elapsed_timers;
- m_time += dtime;
- if (m_next_trigger_time == -1. || m_time < m_next_trigger_time) {
- return elapsed_timers;
- }
- std::multimap<double, NodeTimer>::iterator i = m_timers.begin();
- // Process timers
- for (; i != m_timers.end() && i->first <= m_time; ++i) {
- NodeTimer t = i->second;
- t.elapsed = t.timeout + (f32)(m_time - i->first);
- elapsed_timers.push_back(t);
- m_iterators.erase(t.position);
- }
- // Delete elapsed timers
- m_timers.erase(m_timers.begin(), i);
- if (m_timers.empty())
- m_next_trigger_time = -1.;
- else
- m_next_trigger_time = m_timers.begin()->first;
- return elapsed_timers;
- }
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