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#include "network/multi_turret_manager.h"
multiplayer_turret_manager Multi_Turret_Manager;
bool multiplayer_turret_manager::get_latest_packet(ushort net_signature, int subsys_index, turret_packet* packet)
{
TIMESTAMP current_time = _timestamp(Multi_Timing_Info.get_current_time() + Multi_Timing_Info.get_mission_start_time());
auto it = _packets_in.find(turret_packet_address(net_signature, subsys_index));
// return if we have no packets for this turret and subsystem.
if (it == _packets_in.end() || it->second.empty()){
return false;
}
TIMESTAMP winning_time = TIMESTAMP::immediate();
int winning_index = -1;
SCP_vector<turret_packet> retained;
for (uint index = 0; index < it->second.size(); index++) {
// check that this packet has already elapsed.
if (timestamp_compare(current_time, it->second[index].time) > 0) {
// only the most recent packet for which time has elapsed matters.
if (timestamp_compare(it->second[index].time, winning_time) > 0){
winning_time = it->second[index].time;
winning_index = static_cast<int>(index);
}
} // retain packets that have not yet elapsed
else {
retained.push_back(it->second[index]);
}
}
// Sanity check. We were supposed to deal with an empty incoming vector above.
if (winning_index < 0 && retained.empty()) {
mprintf(("There seems to be a non-fatal mistake in multiplayer code. Please report to Cyborg or check that multiplayer_turret_manager::find() has correct logic.\n"));
return false;
} else if (winning_index > -1) {
// we found an appropriate packet.
*packet = it->second[winning_index];
// restore only the elements that we need to keep around.
it->second = std::move(retained);
return true;
// here none of the received packets are yet available.
} else {
return false;
}
}
// clear things manually so that we don't rely on netsted containers emptying correctly automatically.
void multiplayer_turret_manager::reset()
{
for (auto& vec : _packets_in){
vec.second.clear();
}
_packets_in.clear();
for (auto& vec : _packets_out){
vec.second.clear();
}
_packets_out.clear();
}
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