Added bases for client-server architecture

Author: SharkooC

.idea/libraries/gson_2_9_0.xml

@@ -14,5 +14,6 @@
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" name="KotlinJavaRuntime" level="project" />
     <orderEntry type="library" name="Maven: org.jetbrains.kotlin:kotlin-script-runtime:1.6.10" level="project" />
+    <orderEntry type="library" name="gson-2.9.0" level="project" />
   </component>
 </module>

JavaGameEngine.iml

@@ -0,0 +1,27 @@
+package javagameengine.networking;
+
+import javagameengine.msc.Vector2;
+
+import java.util.LinkedList;
+
+class Header
+{
+    String clientId;
+    String custom;      // Pack data into a string.
+}
+
+class Body
+{
+    LinkedList<obVec> deltaPos = new LinkedList<obVec>();
+}
+
+class obVec
+{
+    String ID;
+    Vector2 vec;
+}
+
+public class BufferData {
+    Header h;
+    Body   b;
+}

src/javagameengine/networking/BufferData.java

@@ -0,0 +1,47 @@
+package javagameengine.networking;
+
+import com.google.gson.Gson;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.ServerSocket;
+import java.net.Socket;
+
+public class Tcp_server extends Thread {
+    public ServerSocket socket;     // Socket to listen on
+    public Socket       i_socket;   // Start listening on socket
+
+    public Tcp_server()
+    {
+        try {
+            socket   = new ServerSocket(8074);
+            i_socket = socket.accept();
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public InputStream input;
+    public BufferedReader reader;
+
+    public BufferData read_client()
+    {
+        String data;
+        BufferData parsed = new BufferData();
+        try {
+            input  = i_socket.getInputStream();
+
+            reader = new BufferedReader(new InputStreamReader(input));
+            data = reader.readLine();
+
+            Gson json_parser = new Gson();
+
+            parsed = json_parser.fromJson(data, BufferData.class);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+        return parsed;
+    }
+}

src/javagameengine/networking/Tcp_server.java

@@ -0,0 +1,26 @@
+
+############################################
+                MULTIPLAYER
+############################################
+
+[Client - Server]
+
+-> Start server (create socket)
+-> Create buffer listener on socket
+
+**********
+  {READER}
+-> Read string from client
+-> Convert from JSON to class
+{{{ (Aforementioned class):
+    {
+        Header: {
+            ClientID: ...
+            Custom: /* Anything the developer would like to know which is separate from the game events */
+        }
+        Body: {
+            deltaPos: [{objectID, vector2}] /* To include changes in objects position (Update) */
+        }
+    }
+}}}
+// The aforementioned class is the same one used for sending data