Major refactoring for game menu

src/MenuManager.cpp

@@ -55,7 +55,7 @@ namespace ZL {
 				}
 				});
 
-			uiManager.setAnimationCallback("exitButton", "bgScroll", []() {
+			uiManager.setAnimationCallback("exitButton", "bgScroll", [this]() {
 				std::cerr << "Exit button bgScroll animation finished" << std::endl;
 				g_exitBgAnimating = false;
 				});
@@ -96,10 +96,10 @@ namespace ZL {
 				});
 
 			uiManager.setButtonCallback("shootButton", [this](const std::string& name) {
-				firePressed = true;
+				onFirePressed();
 				});
 			uiManager.setButtonCallback("shootButton2", [this](const std::string& name) {
-				firePressed = true;
+				onFirePressed();
 				});
 			uiManager.setSliderCallback("velocitySlider", [this](const std::string& name, float value) {
 				int newVel = roundf(value * 10);
@@ -114,16 +114,18 @@ namespace ZL {
 				});
 			};
 
-		uiManager.setButtonCallback("singleButton", [loadGameplayUI](const std::string& name) {
+		uiManager.setButtonCallback("singleButton", [loadGameplayUI, this](const std::string& name) {
 			std::cerr << "Single button pressed: " << name << " -> load gameplay UI\n";
 			loadGameplayUI();
+			onSingleplayerPressed();
 			});
-		/*uiManager.setButtonCallback("multiplayerButton", [loadGameplayUI](const std::string& name) {
+		uiManager.setButtonCallback("multiplayerButton", [loadGameplayUI, this](const std::string& name) {
 			std::cerr << "Multiplayer button pressed: " << name << " -> load gameplay UI\n";
 			loadGameplayUI();
-			});*/
+			onMultiplayerPressed();
+			});
 
-		uiManager.setButtonCallback("multiplayerButton", [this](const std::string& name) {
+		uiManager.setButtonCallback("multiplayerButton2", [this](const std::string& name) {
 			std::cerr << "Multiplayer button pressed → opening multiplayer menu\n";
 
 			uiManager.startAnimationOnNode("playButton", "buttonsExit");