better network structure

app/src/main/java/gui/menu/MultiMenu.java

@@ -6,17 +6,12 @@ import imgui.ImGui;
 import imgui.ImVec2;
 import imgui.type.ImInt;
 import imgui.type.ImString;
-import network.client.Client;
-import network.server.Server;
 
 public class MultiMenu extends BaseView {
 
 	private final ImInt port = new ImInt(25565);
 	private final ImString address = new ImString("localhost");
 
-	private Server server;
-	private Client client;
-
 	public MultiMenu(StateMachine stateMachine) {
 		super(stateMachine);
 	}

app/src/main/java/gui/menu/StateMachine.java

@@ -27,7 +27,7 @@ public class StateMachine {
 	}
 
 	public void popState() {
-		menus.getLast().onKill();
+		menus.get(menus.size() - 1).onKill();
 		menus.pop();
 	}
 
@@ -43,7 +43,7 @@ public class StateMachine {
 		ImGui.setNextWindowSize(displaySize);
 		ImGui.begin("##Main Window", null, ImGuiWindowFlags.NoDecoration | ImGuiWindowFlags.NoMove
 				| ImGuiWindowFlags.NoSavedSettings | ImGuiWindowFlags.NoBackground);
-		menus.getLast().render();
+		menus.get(menus.size() - 1).render();
 		ImGui.end();
 		checkEscape();
 	}