git had the makefile ignored and not im stranded. updated gitignoreand have a good starting point for the game server. working on moving it into the game

.gitignore

@@ -467,7 +467,6 @@ CMakeCache.txt
 CMakeFiles
 CMakeScripts
 Testing
-Makefile
 cmake_install.cmake
 install_manifest.txt
 compile_commands.json

net.h

@@ -0,0 +1,48 @@
+//Troy Rosin
+#ifndef __my_net_h__
+#define __my_net_h__
+
+#define PORT 36911
+
+#define SERVER "localhost"
+
+#define PACKSZ 1024
+
+enum pack_type{
+  G_STATE, S_STATE, HOSTS_REQ, NEW_HOST, JOIN_REQ, U_NAME    
+};
+
+typedef struct packet{
+  enum pack_type type;
+  char payload[PACKSZ - sizeof(enum pack_type)];
+} packet;
+
+
+int read_to_buff(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;
+}
+
+int write_to_buff(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)
+  {
+    SDLNet_Write32(*(src + i), (buff + i));
+  }
+  return 1;
+}
+
+
+#endif

net/Makefile

@@ -0,0 +1,36 @@
+#Troy Rosin tjr760 11200680
+
+CC				=gcc
+CFLAGS		=-g
+CPPFLAGS	=-c -g -Wall -pedantic
+LDFLAGS		=-lSDL2 -lSDL2_net
+
+BIN				=build/bin/
+LIB				=build/lib/
+OBJ				=build/obj/
+DIRS			=$(BIN) $(LIB) $(OBJ)
+
+debug			?=on
+ifeq ($(debug),on)
+CPPFLAGS += -Ddebug
+endif
+
+BINARIES	= client server
+
+all : $(BINARIES)
+
+clean :
+	rm -rf build/ lib/ bin/ $(BINARIES)
+
+$(DIRS) :
+	mkdir -p $@
+
+$(BIN)% : $(OBJ)%.o | $(BIN)
+	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+
+$(OBJ)%.o : %.c net.h | $(OBJ)
+	$(CC) $(CPPFLAGS) -o $@ $< -I.
+
+  
+$(BINARIES) : % : $(BIN)%
+	ln -sf $< $@ 

net/client

@@ -0,0 +1 @@
+build/bin/client

net/client.c

@@ -3,15 +3,16 @@
 #include <SDL2/SDL_net.h>
 #include <SDL2/SDL.h>
 #include <string.h>
+#include <unistd.h>
 #include <stdio.h>
 #include <mydebug.h>
 #include <net.h>
 
-
+#define SECS 1
 
 char buf[PACKSZ];
 char pack[PACKSZ];
-
+packet msg;
 
 int main(void)
 {
@@ -37,16 +38,44 @@ int main(void)
     exit(1);
   }
  
-  ret = SDLNet_TCP_Recv(sock, pack, PACKSZ);
+  PRINT_M("starting"); 
-  if(ret <=0 )
-  {
-    printf("error in TCP Recv: %s\n", SDLNet_GetError());
-  }
   
-  read_to_buff(buf, pack, PACKSZ);
+  msg.type = G_STATE;  
+  write_to_buff((Uint32*)pack, (Uint32*)&msg, PACKSZ);
+  PRINT_M("packed up!");
+  SDLNet_TCP_Send(sock, pack, PACKSZ);
+  PRINT_M("sent"); 
+  sleep(SECS);
 
-  printf("got msg: %s\n", buf); 
+  msg.type = S_STATE;
+  write_to_buff((Uint32*)pack, (Uint32*)&msg, PACKSZ);
+  SDLNet_TCP_Send(sock, pack, PACKSZ);
+  PRINT_M("sent"); 
+  sleep(SECS);
 
+  msg.type = HOSTS_REQ;
+  write_to_buff((Uint32*)pack, (Uint32*)&msg, PACKSZ);
+  SDLNet_TCP_Send(sock, pack, PACKSZ);
+  PRINT_M("sent"); 
+  sleep(SECS);
+
+  msg.type = NEW_HOST;
+  write_to_buff((Uint32*)pack, (Uint32*)&msg, PACKSZ);
+  SDLNet_TCP_Send(sock, pack, PACKSZ);
+  PRINT_M("sent"); 
+  sleep(SECS);
+
+  msg.type = JOIN_REQ;
+  write_to_buff((Uint32*)pack, (Uint32*)&msg, PACKSZ);
+  SDLNet_TCP_Send(sock, pack, PACKSZ);
+  PRINT_M("sent"); 
+  sleep(SECS);
+
+  msg.type = U_NAME;
+  write_to_buff((Uint32*)pack, (Uint32*)&msg, PACKSZ);
+  SDLNet_TCP_Send(sock, pack, PACKSZ);
+  PRINT_M("sent"); 
+  sleep(SECS);
 
   SDLNet_TCP_Close(sock);
   SDLNet_Quit();

net/net.h

@@ -9,7 +9,7 @@
 #define PACKSZ 1024
 
 enum pack_type{
-  G_STATE, HOSTS_REQ, NEW_HOST, JOIN_REQ  
+  G_STATE, S_STATE, HOSTS_REQ, NEW_HOST, JOIN_REQ, U_NAME    
 };
 
 typedef struct packet{
@@ -18,28 +18,28 @@ typedef struct packet{
 } packet;
 
 
-int read_to_buff(char *buff, char *src, Uint32 sz)
+int read_to_buff(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 ; i += 4)
+  for(Uint32 i = 0; i < (sz >> 2); i += 1)
   {
-    *((Uint32*)(buff + i)) = SDLNet_Read32((Uint32 *)(src + i));
+    *(buff + i) = SDLNet_Read32(src + i);
   }
   return 1;
 }
 
-int write_to_buff(char *buff, char *src, Uint32 sz)
+int write_to_buff(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; i += 4)
+  for(Uint32 i = 0; i < (sz >> 2); i += 1)
   {
-    SDLNet_Write32(*((Uint32*)(src + i)), (Uint32*)(buff + i));
+    SDLNet_Write32(*(src + i), (buff + i));
   }
   return 1;
 }

net/server

@@ -0,0 +1 @@
+build/bin/server

net/server.c

@@ -7,24 +7,25 @@
 #include <mydebug.h>
 #include <net.h>
 
-
+#define MAX_SOCKS 4
 
 char buff[PACKSZ];
 char pack[PACKSZ], pack2[PACKSZ];
 
-
+void game_server()
-
-int main(void)
 {
-  
   IPaddress *ip, _ip, *cip;
   TCPsocket sock, csock;
+  TCPsocket sock_arr[MAX_SOCKS];
   ip = &_ip;
+  SDLNet_SocketSet socks;
+  int i;
 
   Uint16 c_port;
   Uint32 c_ip;
   
-  strcpy(pack, "testing Yolo fambro!");
+  int flag = 1;
+  int ret = 0;
 
   SDL_Init(0);
 
@@ -43,45 +44,86 @@ int main(void)
     exit(1);
   }
  
-  int flag = 1;
+  socks = SDLNet_AllocSocketSet(MAX_SOCKS);
-  int ret = 0;
+  
+  for(i = 0; i < MAX_SOCKS; ++i)
+  {
+    sock_arr[i] = NULL;
+  }
+  
   while(flag)
   {
     csock = SDLNet_TCP_Accept(sock);
-    if(!csock)
+    if(!csock && SDLNet_CheckSockets(socks, 0) > 0 ){
-    {
+      //no new connection and there is updates on socks
-      //printf("TCP Accept error: %s\n", SDLNet_GetError());
+      for(i = 0; i < MAX_SOCKS; ++i)
-    }
+      {//check each sock for data and handle it
-    else {
+        csock = sock_arr[i];
-      flag = 0;
+        if(csock == NULL){continue;}
-      cip = SDLNet_TCP_GetPeerAddress(csock);
+        if(SDLNet_SocketReady(csock)){
-      if(!cip)
+          ret = SDLNet_TCP_Recv(csock, pack, PACKSZ);
-      {
+          if(ret < PACKSZ){
-        printf("error getting client ip addr: %s\n", SDLNet_GetError());
+            printf("TCP recv error: %s\n", SDLNet_GetError());
-      }
+            sock_arr[i] = NULL;
-      else
+            SDLNet_TCP_DelSocket(socks, csock);
-      {
+            SDLNet_TCP_Close(csock);
-        puts("we got a new connection!");
+            continue;
-        printf("sending: [%s]\n", pack);
+          }
-        write_to_buff(buff, pack, PACKSZ);    
+          read_to_buff((Uint32*)buff, (Uint32*)pack, PACKSZ);
-        ret = SDLNet_TCP_Send(csock, buff, PACKSZ);
+          switch(((packet*)buff)->type)
-        if(ret < PACKSZ)
+          {
-        {
+            case G_STATE:
-          printf("TCP Send error: %s\n", SDLNet_GetError());
+              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");
+              break;
+            case JOIN_REQ:
+              PRINT_M("got to join request state");
+              break;
+            case U_NAME:
+              PRINT_M("got to update name state");
+              flag = 0;
+              break;
+          }
         }
-        read_to_buff(pack2, buff, PACKSZ);
-        printf("sent: [%s]\n", pack2);
       }      
     }
+    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_SOCKS; ++i){
+          if(sock_arr[i] == NULL){ sock_arr[i] = csock; break; }
+        }
+      }
+    }
+    return;
   }
 
   SDLNet_TCP_Close(sock);
   SDLNet_Quit();
   SDL_Quit();
 
-  puts("donzo");
+}
 
 
+int main(void)
+{
+    game_server(); 
+    puts("donzo");
   return 0;
 }
 

server.c

@@ -0,0 +1,132 @@
+//troy Rosin
+
+#include <SDL2/SDL_net.h>
+#include <SDL2/SDL.h>
+#include <string.h>
+#include <stdio.h>
+#include <mydebug.h>
+#include <net.h>
+
+#define MAX_SOCKS 4
+
+char buff[PACKSZ];
+char pack[PACKSZ], pack2[PACKSZ];
+
+void game_server()
+{
+  IPaddress *ip, _ip, *cip;
+  TCPsocket sock, csock;
+  TCPsocket sock_arr[MAX_SOCKS];
+  ip = &_ip;
+  SDLNet_SocketSet socks;
+  int i;
+
+  Uint16 c_port;
+  Uint32 c_ip;
+  
+  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_SOCKS);
+  
+  for(i = 0; i < MAX_SOCKS; ++i)
+  {
+    sock_arr[i] = NULL;
+  }
+  
+  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_SOCKS; ++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, pack, 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_to_buff((Uint32*)buff, (Uint32*)pack, PACKSZ);
+          switch(((packet*)buff)->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");
+              break;
+            case JOIN_REQ:
+              PRINT_M("got to join request state");
+              break;
+            case U_NAME:
+              PRINT_M("got to update name state");
+              flag = 0;
+              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_SOCKS; ++i){
+          if(sock_arr[i] == NULL){ sock_arr[i] = csock; break; }
+        }
+      }
+    }
+    return;
+  }
+
+  SDLNet_TCP_Close(sock);
+  SDLNet_Quit();
+  SDL_Quit();
+
+}
+
+
+int main(void)
+{
+    game_server(); 
+    puts("donzo");
+  return 0;
+}
+
+
+
+