--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hedgewars/uNet.pas	Mon Aug 22 13:35:41 2005 +0000
@@ -0,0 +1,155 @@
+(*
+ * Hedgewars, a worms-like game
+ * Copyright (c) 2004, 2005 Andrey Korotaev <unC0Rr@gmail.com>
+ *
+ * Distributed under the terms of the BSD-modified licence:
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * with the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *)
+
+unit uNet;
+interface
+uses WinSock, Messages;
+const
+      IN_NET_PORT  = 46632;
+      WM_ASYNC_NETEVENT = WM_USER + 7;
+
+type TCommandHandler = procedure (s: shortstring);
+
+procedure SplitStream2Commands(var ss: string; Handler: TCommandHandler);
+procedure SendSock(Socket: TSocket; s: shortstring);
+procedure InitServer;
+procedure NetSockEvent(sock, lParam: Longword);
+
+var hNetListenSockTCP: TSocket = INVALID_SOCKET;
+
+implementation
+uses uServerMisc, uPlayers;
+
+procedure SplitStream2Commands(var ss: string; Handler: TCommandHandler);
+var s: shortstring;
+begin
+while (Length(ss) > 1)and(Length(ss) > byte(ss[1])) do
+      begin
+      s:= copy(ss, 2, byte(ss[1]));
+      Delete(ss, 1, Succ(byte(ss[1])));
+      Handler(s)
+      end;
+end;
+
+procedure SendSock(Socket: TSocket; s: shortstring);
+begin
+//writeln(socket, '> ', s);
+send(Socket, s[0], Succ(byte(s[0])), 0)
+end;
+
+procedure InitServer;
+var myaddrTCP: TSockAddrIn;
+    t: integer;
+    stWSADataTCPIP : WSADATA;
+begin
+TryDo(WSAStartup($0101, stWSADataTCPIP) = 0, 'Error on WSAStartup');
+hNetListenSockTCP:= socket(AF_INET, SOCK_STREAM, 0);
+myaddrTCP.sin_family      := AF_INET;
+myaddrTCP.sin_addr.s_addr := $0;
+myaddrTCP.sin_port        := htons(IN_NET_PORT);
+t:= sizeof(TSockAddrIn);
+TryDo(   bind(hNetListenSockTCP, myaddrTCP, t) = 0, 'Error on bind'  );
+TryDo( listen(hNetListenSockTCP, 1)            = 0, 'Error on listen');
+WSAAsyncSelect(hNetListenSockTCP, hwndMain, WM_ASYNC_NETEVENT, FD_ACCEPT or FD_READ or FD_CLOSE)
+end;
+
+procedure ParseNetCommand(Player: PPlayer; s: shortstring);
+begin
+case s[1] of
+     '?': SendSock(player.socket, '!');
+     'n': begin
+          player.Name:= copy(s, 2, length(s) - 1);
+          Writeln(player.socket, ' now is ', player.Name)
+          end;
+     'C': SendConfig(player);
+     'G': SendAll('G');
+     'T': begin
+          s[0]:= #5;
+          s[1]:= 'T';
+          PLongWord(@s[2])^:= GetTeamCount;
+          SendSock(player.socket, s)
+          end;
+     'K': SelectFirstCFGTeam;
+     'k': SelectNextCFGTeam;
+     'h': ConfCurrTeam(s);
+     else SendAllButOne(Player, s) end
+end;
+
+procedure NetSockEvent(sock, lParam: Longword);
+var i: integer;
+    buf: array[0..255] of byte;
+    s: shortstring absolute buf;
+    WSAEvent: word;
+    player: PPlayer;
+    sa: TSockAddr;
+begin
+WSAEvent:= WSAGETSELECTEVENT(lParam);
+case WSAEvent of
+      FD_ACCEPT: begin
+                 i:= sizeof(sa);
+                 sock:= accept(hNetListenSockTCP, @sa, @i);
+                 Writeln('Connected player ', sock, ' from ', inet_ntoa(sa.sin_addr));
+                 AddPlayer(sock);
+                 SendSock(sock, 'i')
+                 end;
+       FD_CLOSE: begin
+                 player:= FindPlayerbySock(sock);
+                 TryDo(player <> nil, 'FD_CLOSE from unknown player??');
+                 Write('Player quit: ');
+                 if player.Name[0]=#0 then Writeln('socket ', player.socket)
+                                      else Writeln(player.Name);
+                 DeletePlayer(player);
+                 closesocket(sock);
+                 end;
+        FD_READ: begin
+                 player:= FindPlayerbySock(sock);
+                 TryDo(player <> nil, 'FD_READ from unknown player??');
+                 repeat
+                 i:= recv(sock, buf[1], 255, 0);
+                 if i > 0 then
+                    begin
+                    buf[0]:= i;
+                    player.inbuf:= player.inbuf + s;
+                    while (Length(player.inbuf) > 1)and(Length(player.inbuf) > byte(player.inbuf[1])) do
+                          begin
+                          ParseNetCommand(player, copy(player.inbuf, 2, byte(player.inbuf[1])));
+                          Delete(player.inbuf, 1, Succ(byte(player.inbuf[1])))
+                          end;
+                    end;
+                 until i < 1;
+                 end
+     end
+end;
+
+
+end.