Initial network support

2011-08-02 12:49:02 -04:00
parent 507e791888
commit 6ea66b7aab
5 changed files with 127 additions and 3 deletions
@@ -0,0 +1,33 @@
+1. server maintains:
+   every frame it has ever been in.
+
+   every packet it has ever sent.
+
+   packet has: frame no, frame it depends on (maybe nothing),
+0   server's Last Known Client Frame
+
+   client has told us the latest frame it can now contruct
+
+   some packets have transmitted frames > this recently, but those
+   frames haven't yet been acked
+
+   some packets may have transmitted frames > this long ago
+   and haven't been acked. we call those lost
+
+2. most recent frame is "current frame"
+
+   most recent frame not lost is "presumed client frame"
+
+   most recent frame acked is "last known client frame"
+
+3. goal: transmit current frame to client by most efficient means
+
+   could send packet depending on "nothing", "presumed client frame",
+   or "last known client frame"
+
+4. when client gets a packet, it tells us the latest frame it
+   can now construct
+
+5. when sending packet, server tells client last known client frame.
+   client discards all frames older than this.
+