exchange block updates with clients

[blank.git] / src / server / net.cpp

diff --git a/src/server/net.cpp b/src/server/net.cpp
index ea5b4d995f19d38262891b0919f1fb2360ed05b3..8b4448e46d6b363051d755f8fe6f05c2d2c871ca 100644 (file)
--- a/src/server/net.cpp
+++ b/src/server/net.cpp
@@ -283,7 +283,7 @@ uint16_t ClientConnection::Send() {
 }
 
 uint16_t ClientConnection::Send(size_t len) {
-       server.GetPacket().len = len;
+       server.GetPacket().len = sizeof(Packet::Header) + len;
        return Send();
 }
 
@@ -555,6 +555,10 @@ void ClientConnection::On(const Packet::PlayerUpdate &pack) {
        old_actions = new_actions;
 }
 
+bool ClientConnection::ChunkInRange(const glm::ivec3 &pos) const noexcept {
+       return HasPlayer() && PlayerChunks().InRange(pos);
+}
+
 
 Server::Server(const Config::Network &conf, World &world)
 : serv_sock(nullptr)
@@ -645,8 +649,18 @@ const CompositeModel &Server::GetPlayerModel() const noexcept {
 
 void Server::SetBlock(Chunk &chunk, int index, const Block &block) {
        chunk.SetBlock(index, block);
-       // TODO: send to clients
-       // also TODO: batch chunk changes
+       // TODO: batch chunk changes
+       auto pack = Packet::Make<Packet::BlockUpdate>(GetPacket());
+       pack.WriteChunkCoords(chunk.Position());
+       pack.WriteBlockCount(uint32_t(1));
+       pack.WriteIndex(index, 0);
+       pack.WriteBlock(chunk.BlockAt(index), 0);
+       GetPacket().len = sizeof(Packet::Header) + Packet::BlockUpdate::GetSize(1);
+       for (ClientConnection &client : clients) {
+               if (client.ChunkInRange(chunk.Position())) {
+                       client.Send();
+               }
+       }
 }
 
 }