adding multiplayer

source/server_source/server.c

@@ -1,29 +1,160 @@
 #include "server.h"
+#include "transactions.h"
+
+#include <stdio.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
+#include <time.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/ioctl.h>
 #include <unistd.h>
 #include <sys/socket.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
 
-int start_server() {
+
+int start_server(s_game_server* s) {
     struct sockaddr_in server; 
     int serverSock;
 
-    serverSock = socket(AF_INET, SOCK_STREAM, 0);
+    s->sock = socket(AF_INET, SOCK_STREAM, 0);
 
     server.sin_family = AF_INET;
     server.sin_port = htons(2223);
     server.sin_addr.s_addr = INADDR_ANY;
 
-    if(bind(serverSock, (struct sockaddr*)&serverSock, sizeof(server)) < 0) {
+    if(bind(s->sock, (struct sockaddr*)&server, sizeof(server)) < 0) {
+        printf("could not bind socket\n");
         return -1;
     }
 
-    listen(serverSock, 4);
-
+    int blocking_mode = 1;
     
+    ioctl(s->sock, FIONBIO, &blocking_mode); // Shuld be 1
+
+    printf("lissening\n");
+    listen(s->sock, 4);
+    return 0;
+}
+
+int accept_client(s_game_server* s) {
+    struct sockaddr_in addr;
+    socklen_t client_addr_size;
+
+    client_addr_size = sizeof(addr);
+    int tmp = accept(s->sock, (struct sockaddr*)&addr, &client_addr_size);
+    if(tmp == -1) {
+    //    return -1;
+    } else {
+        for (int i = 0; i < 4; i++) {
+            if(s->clients[i].sock == 0) {
+                s->clients[i].sock = tmp;
+                s->clients[i].userId = rand();
+                break;
+            }
+        }
+    }
+
+    //server_transaction st;
+    //memset(&st, 0, sizeof(st));
+    //st.id = SERVER_T_SERVER_FLAG;
+    //st.action = SERVER_T_SET_PLAYER_ID;
+    //st.argsize = sizeof(int);
+    //st.serverArg = 
+
+
+    //SendServerTransaction(&st, tmp);
+
+    //user_transaction ut;
+    //memset(&ut, 0, sizeof(user_transaction));
+
+    //for(int i = 0; i < 4; i++) {
+    //    if(s->clients[i].sock != 0) {
+    //        RecvUserTransaction(&ut, s->sock);
+
+    //    }
+    //}
+    // accempt client
+    // send world seed
+    // send player colors
+    // player data
+    //  - class
+    //  - level
+    //  - items 
+    //  - etc
+    return tmp;
+}
+
+int limit_fps(int fps, struct timespec* last_time) {
+    struct timespec current_time;
+    double frame_time = 1.0/fps;
+
+    clock_gettime(CLOCK_MONOTONIC, &current_time);
+
+    double elapsed = (current_time.tv_sec - last_time->tv_sec) +
+                     (current_time.tv_nsec - last_time->tv_nsec) / 1e9;
+
+    if (elapsed < frame_time) {
+        return 0;
+    }
+    clock_gettime(CLOCK_MONOTONIC, last_time);
+
+    return 1;
+
+}
+
+int server_update(s_game_server* gs) {
+        if(limit_fps(60, &gs->current_time)) {
+            for(int i = 0; i < 4; i++) {
+                if(gs->clients[0].sock > 0 && gs->clients[1].sock > 0) {
+
+                    if(rst2.userArg != 0) {
+                        FreeUserTransaction(&rst2);
+                    }
+                    if(RecvUserTransaction(&rst2, s.clients[0].sock)){
+                        st2 = rst2;
+                    }
+                    SendUserTransaction(&st2, s.clients[1].sock);
+                    SendUserTransaction(&st1, s.clients[0].sock);
+
+                    if(rst1.userArg != 0) {
+                        FreeUserTransaction(&rst1);
+                    }
+                    if(RecvUserTransaction(&rst1, s.clients[1].sock)) {
+                        st1 = rst1;
+                    }
+                    SendUserTransaction(&st1, s.clients[0].sock);
+                    SendUserTransaction(&st2, s.clients[1].sock);
+                }
+            }
+        }
+
     
     return 0;
 }
+
+//int get_player_data(s_game_server* s, int client) {
+//
+//    server_transaction st;
+//    server_transaction rst;
+//    memset(&st,0,sizeof(st));
+//    memset(&rst,0,sizeof(rst));
+//
+//    st.id = SERVER_T_SERVER_FLAG & SERVER_T_REQUEST;
+//    st.action = SERVER_T_GET_PLAYER_DATA;
+//
+//    printf("Getting Player Data\n");
+//
+//
+//    if(!SendServerTransaction(&st, client)) {
+//        return -1;
+//    }
+//
+//    if(RecvServerTransaction(&rst, client)) {
+//        return -1;
+//    }
+//    return 0;
+//}
+//