better network structure

app/src/main/java/network/Connexion.java

@@ -4,6 +4,9 @@ import java.io.IOException;
 import java.io.ObjectOutputStream;
 import java.net.Socket;
 
+import network.protocol.Packet;
+import network.protocol.PacketVisitor;
+
 public abstract class Connexion implements PacketVisitor {
 	
 	final Socket socket;
@@ -17,8 +20,13 @@ public abstract class Connexion implements PacketVisitor {
 		this.connexionThread.start();
 	}
 
-	public void sendPacket(Packet packet) throws IOException {
-		objectOutputStream.writeObject(packet);
+	public void sendPacket(Packet packet) {
+		try {
+			objectOutputStream.writeObject(packet);
+		} catch (IOException e) {
+			System.err.println("Error while sending packet ! " + e.getLocalizedMessage());
+			close();
+		}
 	}
 
 	public void close() {