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

2026-02-06 16:36:13 -06:00
parent 468ab94aa7
commit b2fa3052f3
23 changed files with 432 additions and 326 deletions
--- a/game_server.c
+++ b/game_server.c
@@ -0,0 +1,161 @@
+//troy Rosin
+
+#include <SDL2/SDL_net.h>
+#include <SDL2/SDL.h>
+#include <string.h>
+#include <stdio.h>
+#include <mydebug.h>
+#include <net.h>
+#include <game.h>
+
+
+#define MAX_LOBBIES 16
+
+
+host_info open_hosts[MAX_LOBBIES];
+SDLNet_SocketSet host_socks;
+
+
+extern char my_buff[PACKSZ];
+extern char net_buff[PACKSZ];
+packet ser_send, recved;
+
+void new_host_setup();
+
+TCPsocket sock, csock;
+
+void game_server()
+{
+  IPaddress *ip, _ip, *cip;
+  TCPsocket sock_arr[MAX_LOBBIES];
+  ip = &_ip;
+  SDLNet_SocketSet socks;
+  int i;
+
+  
+  int flag = 1;
+  int ret = 0;
+
+  SDL_Init(0);
+
+  SDLNet_Init();
+ 
+  if(SDLNet_ResolveHost(ip, NULL, PORT) == -1)
+  {
+    printf("SDLNet_resolvehost error: %s\n", SDLNet_GetError());
+    exit(1);
+  }  
+
+  sock = SDLNet_TCP_Open(ip);
+  if(!sock)
+  {
+    printf("SDL_Net_TCP_Open error: %s\n", SDLNet_GetError());
+    exit(1);
+  }
+ 
+  socks = SDLNet_AllocSocketSet(MAX_LOBBIES);
+  
+  for(i = 0; i < MAX_LOBBIES; ++i)
+  {
+    open_hosts[i].name[0] = '\0';
+    sock_arr[i] = NULL;
+  }
+  
+  //main server loop 
+  while(flag)
+  {
+    csock = SDLNet_TCP_Accept(sock);
+    if(!csock && SDLNet_CheckSockets(socks, 0) > 0 ){
+      //no new connection and there is updates on socks
+      for(i = 0; i < MAX_LOBBIES; ++i)
+      {//check each sock for data and handle it
+        csock = sock_arr[i];
+        if(csock == NULL){continue;}
+        if(SDLNet_SocketReady(csock)){
+          ret = SDLNet_TCP_Recv(csock, net_buff, PACKSZ);
+          if(ret < PACKSZ){
+            printf("TCP recv error: %s\n", SDLNet_GetError());
+            sock_arr[i] = NULL;
+            SDLNet_TCP_DelSocket(socks, csock);
+            SDLNet_TCP_Close(csock);
+            continue;
+          }
+          read_from_packet((Uint32*)&recved, (Uint32*)net_buff, PACKSZ);
+          switch(recved.type)
+          {
+            case G_STATE:
+              PRINT_M("got to get state case");
+              break;
+            case S_STATE:
+              PRINT_M("got to set state case");
+              break;
+            case HOSTS_REQ:
+              PRINT_M("got to hosts request state");
+              break;
+            case NEW_HOST:
+              PRINT_M("got to new host state");
+              new_host_setup();
+              break;
+            case JOIN_REQ:
+              PRINT_M("got to join request state");
+              break;
+            case U_NAME:
+              PRINT_M("got to update name state");
+              break;
+            default:
+              printf("unknown packet type: %d\n", recved.type);
+              break;
+          }
+        }
+      }      
+    }
+    else if (csock) {
+      cip = SDLNet_TCP_GetPeerAddress(csock);
+      if(!cip){
+          printf("get peer addr error: %s\n", SDLNet_GetError());
+      }
+      else {
+        PRINT_M("we got a new connection!");
+        if(SDLNet_TCP_AddSocket(socks, csock) <= 0){
+          printf("add sock to set error: %s\n", SDLNet_GetError());
+        } 
+        for(i = 0; i < MAX_LOBBIES; ++i){
+          if(sock_arr[i] == NULL){ sock_arr[i] = csock; break; }
+        }
+      }
+    }
+  }
+
+  SDLNet_TCP_Close(sock);
+  SDLNet_Quit();
+  SDL_Quit();
+}
+
+
+int main(void)
+{
+  game_server(); 
+  return 0;
+}
+
+void new_host_setup()
+{
+  int i;
+  TCPsocket s = csock;
+  PRINT_M(SETUP NEW HOST)
+  for(i = 0; i < MAX_LOBBIES; ++i){
+    if(!*(open_hosts[i].name)){continue;}
+    if(!strcmp(recved.payload, open_hosts[i].name)){
+      PRINT_M(ALREAD HAVE THAT LOBBY NAME OPEN)
+      return;
+    }
+  }
+  PRINT_M(SENDING BACK THEY GOOD)
+  //no lobbies have that name
+  write_for_sending((Uint32*)net_buff, (Uint32*)&recved, PACKSZ);
+  SDLNet_TCP_Send(s, net_buff, PACKSZ);
+
+  return;
+}
+
+