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

include/SDLnetsys.h

@@ -0,0 +1,94 @@
+/*
+  SDL_net:  An example cross-platform network library for use with SDL
+  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.
+*/
+
+/* Include normal system headers */
+#if defined(__APPLE__) && !defined(_DARWIN_C_SOURCE)
+#define _DARWIN_C_SOURCE
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#if defined(__OS2__) && !defined(__EMX__)
+#include <nerrno.h>
+#else
+#include <errno.h>
+#endif
+
+/* Include system network headers */
+#if defined(__WIN32__) || defined(WIN32)
+#define __USE_W32_SOCKETS
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#include <iphlpapi.h>
+#else /* UNIX */
+#ifdef __OS2__
+#include <sys/param.h>
+#endif
+#include <sys/types.h>
+#ifdef __FreeBSD__
+#include <sys/socket.h>
+#endif
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <netinet/in.h>
+#ifndef __BEOS__
+#include <arpa/inet.h>
+#endif
+#include <netinet/tcp.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <netdb.h>
+#endif /* WIN32 */
+
+#ifdef __OS2__
+typedef int socklen_t;
+#elif 0
+/* FIXME: What platforms need this? */
+typedef Uint32 socklen_t;
+#endif
+
+/* System-dependent definitions */
+#ifndef __USE_W32_SOCKETS
+#ifdef __OS2__
+#define closesocket     soclose
+#else  /* !__OS2__ */
+#define closesocket close
+#endif /* __OS2__ */
+#define SOCKET  int
+#define INVALID_SOCKET  -1
+#define SOCKET_ERROR    -1
+#endif /* __USE_W32_SOCKETS */
+
+#ifdef __USE_W32_SOCKETS
+#define SDLNet_GetLastError WSAGetLastError
+#define SDLNet_SetLastError WSASetLastError
+#ifndef EINTR
+#define EINTR WSAEINTR
+#endif
+#else
+int SDLNet_GetLastError(void);
+void SDLNet_SetLastError(int err);
+#endif
+