added being able to create a host on the game server now need to work on joining that game

net.c

@@ -2,7 +2,6 @@
 
 #include <SDL_net.h>
 #include <SDLnetsys.h>
-
 #include <SDL2/SDL.h>
 #include <SDL2/SDL_image.h>
 #include <mydebug.h>
@@ -12,15 +11,95 @@
 #include <main.h>
 #include <net.h>
 
+IPaddress ser_ip;
+TCPsocket ser_sock;
+SDLNet_SocketSet sset;
+
+char my_buff[PACKSZ]; //always client bit ordering
+char net_buff[PACKSZ]; //always in net bit ordering
+
+packet to_send, received;
+
+int init_server_connection()
+{
+  static int connected = 0;
+  if(connected){ return 1; }
+  SDLNet_Init();
+  if(SDLNet_ResolveHost(&ser_ip, SERVER, PORT) == -1){
+    printf("SDLNet resolve host, in init_server connection, error,\n%s\n",
+      SDLNet_GetError());
+    return 0;
+  }
+  ser_sock = SDLNet_TCP_Open(&ser_ip);
+  if(!ser_sock){
+    printf("SDLNet tcp open, in init_server connection, error,\n%s\n",
+      SDLNet_GetError());
+    return 0;
+  }
+  sset = SDLNet_AllocSocketSet(1);
+  SDLNet_TCP_AddSocket(sset, ser_sock);
+  
+  connected = 1;
+  return 1;  
+}
 
 
-static TCPsocket tcpscok = NULL;
-static UDPsocket udpsock = NULL;
-static SDLNet_SocketSet socketset = NULL;
-static UDPpacket **packets = NULL;
-static struct {
-  int active;
-  Uint8 name[MAX_NAMESZ];
-} people[MAX_PLAYERS];
+
+int new_host(char lobby_name[MAX_NAMESZ])
+{
+  int ret;
+  if(!init_server_connection()){
+    return 0;   
+  }  
+  strcpy(to_send.payload, lobby_name);
+  to_send.type = NEW_HOST;
+  write_for_sending((Uint32*)net_buff, (Uint32*)&to_send, PACKSZ);
+  SDLNet_TCP_Send(ser_sock, net_buff, PACKSZ);
+  
+  //wait for a response
+  while(!SDLNet_CheckSockets(sset, 0)){}
+  
+  PRINT_M(HAVE DATA TO GET)
+
+  ret = SDLNet_TCP_Recv(ser_sock, net_buff, PACKSZ);
+  if(ret < PACKSZ){ return 0; }
+  
+  PRINT_M(GOT FULL PACK)
+  
+  read_from_packet((Uint32*)&received, (Uint32*)net_buff, PACKSZ);
+  
+  if(received.type != NEW_HOST){ return 0; }
+
+  PRINT_M(NEW_HOST CREATED!)
+  return 1;  
+}
 
 
+//takes packet in host bit ordering and puts in buff with client bit ordering
+int read_from_packet(Uint32 *buff, Uint32 *src, Uint32 sz)
+{
+  if(sz%32){
+    puts("error size must be div by 32");
+    return 0;
+  }
+  for(Uint32 i = 0; i < (sz >> 2); i += 1)
+  {
+    *(buff + i) = SDLNet_Read32(src + i);
+  }
+  return 1;
+}
+
+//takes buffer in client bit order and packs into packet with net bit ordering
+int write_for_sending(Uint32 *pack, Uint32 *src, Uint32 sz)
+{
+  if(sz%32){
+    puts("error size must be div by 32");
+    return 0;
+  }
+  for(Uint32 i = 0; i < (sz >> 2); i += 1)
+  {
+    SDLNet_Write32(*(src + i), (pack + i));
+  }
+  return 1;
+}
+