Create Game Menu

src/main/java/com/bartlomiejpluta/demo/menu/MenuManager.java

@@ -2,8 +2,11 @@ package com.bartlomiejpluta.demo.menu;
 
 import lombok.*;
 
+import java.util.function.*;
+
 import com.bartlomiejpluta.base.api.context.Context;
 import com.bartlomiejpluta.base.api.screen.Screen;
+import com.bartlomiejpluta.base.api.input.*;
 import com.bartlomiejpluta.base.api.gui.*;
 import com.bartlomiejpluta.base.lib.gui.*;
 
@@ -17,6 +20,9 @@ public class MenuManager {
 	private final WindowManager manager;
 
 	private final StartMenuWindow startMenu;
+	private final GameMenuWindow gameMenu;
+
+	private final Consumer<KeyEvent> gameMenuHandler = this::handleGameMenuKeyEvent;
 
 	public MenuManager(@NonNull DemoRunner runner, @NonNull Context context) {
 		this.runner = runner;
@@ -29,6 +35,29 @@ public class MenuManager {
 		this.startMenu = (StartMenuWindow) gui.inflateWindow("ab9d40b4-eb28-45d7-bff2-9432a05eb41a");
 		this.startMenu.getNewGameBtn().setAction(runner::newGame);
 		this.startMenu.getExitBtn().setAction(runner::exit);
+
+		this.gameMenu = (GameMenuWindow) gui.inflateWindow("56ca6b39-f949-4212-9c23-312db25887e0");
+		this.gameMenu.getResumeGameBtn().setAction(this::resumeGame);
+		this.gameMenu.getStartMenuBtn().setAction(runner::returnToStartMenu);
+		this.gameMenu.getExitBtn().setAction(runner::exit);
+	}
+
+	private void handleGameMenuKeyEvent(KeyEvent event) {
+		if (event.getKey() == Key.KEY_ESCAPE && event.getAction() == KeyAction.PRESS) {
+			if(manager.size() > 0) {
+				manager.close();
+			} else {
+				manager.open(gameMenu);
+			}
+
+			if(manager.size() > 0) {
+				context.pause();
+			} else {
+				context.resume();
+			}
+
+			event.consume();
+		}
 	}
 
 	public void showStartMenu() {
@@ -36,7 +65,24 @@ public class MenuManager {
 		manager.open(startMenu);
 	}
 
+	public void enableGameMenu() {
+		manager.closeAll();
+
+		context.getInput().addKeyEventHandler(gameMenuHandler);
+		manager.setDisplayMode(DisplayMode.DISPLAY_STACK);
+	}
+
+	public void disableGameMenu() {
+		context.getInput().removeKeyEventHandler(gameMenuHandler);
+		manager.setDisplayMode(DisplayMode.DISPLAY_TOP);
+	}
+
 	public void closeAll() {
 		manager.closeAll();
 	}
+
+	private void resumeGame() {
+		manager.closeAll();
+		context.resume();
+	}
 }