added new screens and getting ready for networking, looking at SDL_net for cross platfrom networking so i dont have to touch windows

include/chat.h

@@ -0,0 +1,53 @@
+/*
+  CHAT:  A chat client/server using the SDL example network library
+  Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+/* $Id$ */
+
+/* Convert four letters into a number */
+#define MAKE_NUM(A, B, C, D)    (((A+B)<<8)|(C+D))
+
+/* Defines for the chat client */
+#define CHAT_SCROLLBACK 512     /* Save 512 lines in scrollback */
+#define CHAT_PROMPT "> "
+#define CHAT_PACKETSIZE 256     /* Maximum length of a message */
+
+/* Defines shared between the server and client */
+#define CHAT_PORT   MAKE_NUM('C','H','A','T')
+
+/* The protocol between the chat client and server */
+#define CHAT_HELLO  0   /* 0+Port+len+name */
+#define CHAT_HELLO_PORT     1
+#define CHAT_HELLO_NLEN     CHAT_HELLO_PORT+2
+#define CHAT_HELLO_NAME     CHAT_HELLO_NLEN+1
+#define CHAT_ADD    1   /* 1+N+IP+Port+len+name */
+#define CHAT_ADD_SLOT       1
+#define CHAT_ADD_HOST       CHAT_ADD_SLOT+1
+#define CHAT_ADD_PORT       CHAT_ADD_HOST+4
+#define CHAT_ADD_NLEN       CHAT_ADD_PORT+2
+#define CHAT_ADD_NAME       CHAT_ADD_NLEN+1
+#define CHAT_DEL    2   /* 2+N */
+#define CHAT_DEL_SLOT       1
+#define CHAT_DEL_LEN        CHAT_DEL_SLOT+1
+#define CHAT_BYE    255 /* 255 */
+#define CHAT_BYE_LEN        1
+
+/* The maximum number of people who can talk at once */
+#define CHAT_MAXPEOPLE  10