Special graphic symbol packet

wxdata/source/scwx/wsr88d/rpg/mesocyclone_symbol_packet.cpp

@@ -0,0 +1,123 @@
+#include <scwx/wsr88d/rpg/mesocyclone_symbol_packet.hpp>
+
+#include <istream>
+#include <set>
+#include <string>
+
+#include <boost/log/trivial.hpp>
+
+namespace scwx
+{
+namespace wsr88d
+{
+namespace rpg
+{
+
+static const std::string logPrefix_ =
+   "[scwx::wsr88d::rpg::mesocyclone_symbol_packet] ";
+
+static const std::set<uint16_t> packetCodes_ = {3, 11};
+
+struct MesocycloneSymbol
+{
+   int16_t iPosition_;
+   int16_t jPosition_;
+   int16_t radiusOfMesocyclone_;
+
+   MesocycloneSymbol() :
+       iPosition_ {0}, jPosition_ {0}, radiusOfMesocyclone_ {0}
+   {
+   }
+};
+
+class MesocycloneSymbolPacketImpl
+{
+public:
+   explicit MesocycloneSymbolPacketImpl() : symbol_ {}, recordCount_ {0} {}
+   ~MesocycloneSymbolPacketImpl() = default;
+
+   std::vector<MesocycloneSymbol> symbol_;
+   size_t                         recordCount_;
+};
+
+MesocycloneSymbolPacket::MesocycloneSymbolPacket() :
+    p(std::make_unique<MesocycloneSymbolPacketImpl>())
+{
+}
+MesocycloneSymbolPacket::~MesocycloneSymbolPacket() = default;
+
+MesocycloneSymbolPacket::MesocycloneSymbolPacket(
+   MesocycloneSymbolPacket&&) noexcept                    = default;
+MesocycloneSymbolPacket& MesocycloneSymbolPacket::operator=(
+   MesocycloneSymbolPacket&&) noexcept = default;
+
+int16_t MesocycloneSymbolPacket::i_position(size_t i) const
+{
+   return p->symbol_[i].iPosition_;
+}
+
+int16_t MesocycloneSymbolPacket::j_position(size_t i) const
+{
+   return p->symbol_[i].jPosition_;
+}
+
+int16_t MesocycloneSymbolPacket::radius_of_mesocyclone(size_t i) const
+{
+   return p->symbol_[i].radiusOfMesocyclone_;
+}
+
+size_t MesocycloneSymbolPacket::RecordCount() const
+{
+   return p->recordCount_;
+}
+
+bool MesocycloneSymbolPacket::ParseData(std::istream& is)
+{
+   bool blockValid = true;
+
+   if (!packetCodes_.contains(packet_code()))
+   {
+      BOOST_LOG_TRIVIAL(warning)
+         << logPrefix_ << "Invalid packet code: " << packet_code();
+      blockValid = false;
+   }
+
+   if (blockValid)
+   {
+      p->recordCount_ = length_of_block() / 6;
+      p->symbol_.resize(p->recordCount_);
+
+      for (size_t i = 0; i < p->recordCount_; i++)
+      {
+         MesocycloneSymbol& s = p->symbol_[i];
+
+         is.read(reinterpret_cast<char*>(&s.iPosition_), 2);
+         is.read(reinterpret_cast<char*>(&s.jPosition_), 2);
+         is.read(reinterpret_cast<char*>(&s.radiusOfMesocyclone_), 2);
+
+         s.iPosition_           = ntohs(s.iPosition_);
+         s.jPosition_           = ntohs(s.jPosition_);
+         s.radiusOfMesocyclone_ = ntohs(s.radiusOfMesocyclone_);
+      }
+   }
+
+   return blockValid;
+}
+
+std::shared_ptr<MesocycloneSymbolPacket>
+MesocycloneSymbolPacket::Create(std::istream& is)
+{
+   std::shared_ptr<MesocycloneSymbolPacket> packet =
+      std::make_shared<MesocycloneSymbolPacket>();
+
+   if (!packet->Parse(is))
+   {
+      packet.reset();
+   }
+
+   return packet;
+}
+
+} // namespace rpg
+} // namespace wsr88d
+} // namespace scwx