Added the basic framework for buttons in the main game area

source/core/src/main/com/csse3200/game/components/maingame/MainGameExitDisplay.java

@@ -40,7 +40,7 @@ public void changed(ChangeEvent changeEvent, Actor actor) {
         }
       });
 
-    table.add(mainMenuBtn).padTop(10f).padRight(10f);
+    table.add(mainMenuBtn).padTop(125f).padRight(10f);
 
     stage.addActor(table);
   }

source/core/src/main/com/csse3200/game/components/maingame/UIElementsDisplay.java

@@ -1,2 +1,68 @@
-package com.csse3200.game.components.maingame;public class UIElementsDisplay {
+package com.csse3200.game.components.maingame;
+
+import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.scenes.scene2d.Actor;
+import com.badlogic.gdx.scenes.scene2d.ui.Button;
+import com.badlogic.gdx.scenes.scene2d.ui.Table;
+import com.badlogic.gdx.scenes.scene2d.ui.TextButton;
+import com.badlogic.gdx.scenes.scene2d.utils.ChangeListener;
+import com.csse3200.game.ui.ButtonFactory;
+import com.csse3200.game.ui.UIComponent;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.w3c.dom.Text;
+
+/**
+ * Displays a button to exit the Main Game screen to the Main Menu screen.
+ */
+public class UIElementsDisplay extends UIComponent {
+    private static final Logger logger = LoggerFactory.getLogger(MainGameExitDisplay.class);
+    private static final float Z_INDEX = 2f;
+    private Table table;
+
+    @Override
+    public void create() {
+        super.create();
+        addActors();
+    }
+
+    private void addActors() {
+        table = new Table();
+        table.top().right();
+        table.setFillParent(true);
+
+        TextButton remainingMobsButton = new ButtonFactory().createButton("Remaining mobs:");
+        TextButton testSlider = new ButtonFactory().createButton("Test slider");
+
+        // Triggers an event when the button is pressed.
+        remainingMobsButton.addListener(
+                new ChangeListener() {
+                    @Override
+                    public void changed(ChangeEvent changeEvent, Actor actor) {
+                        logger.debug("Wave counter button clicked");
+                        entity.getEvents().trigger("wave counter");
+                    }
+                });
+
+        table.add(remainingMobsButton).padTop(0f).padRight(10f);
+        table.add(testSlider).padTop(90).padRight(10f);
+
+        stage.addActor(table);
+    }
+
+    @Override
+    public void draw(SpriteBatch batch) {
+        // drawing is handled by the stage
+    }
+
+    @Override
+    public float getZIndex() {
+        return Z_INDEX;
+    }
+
+    @Override
+    public void dispose() {
+        table.clear();
+        super.dispose();
+    }
 }

source/core/src/main/com/csse3200/game/screens/MainGameScreen.java

@@ -22,6 +22,7 @@
 import com.csse3200.game.components.gamearea.PerformanceDisplay;
 import com.csse3200.game.components.maingame.MainGameActions;
 import com.csse3200.game.components.maingame.MainGameLoseDisplay;
+import com.csse3200.game.components.maingame.UIElementsDisplay;
 import com.csse3200.game.entities.Entity;
 import com.csse3200.game.entities.EntityService;
 import com.csse3200.game.entities.factories.PlayerFactory;
@@ -200,6 +201,7 @@ private void createUI() {
         .addComponent(new PerformanceDisplay())
         .addComponent(new MainGameActions(this.game))
         .addComponent(new MainGameExitDisplay())
+            .addComponent(new UIElementsDisplay())
             .addComponent(new MainGameLoseDisplay())
         .addComponent(new Terminal())
         .addComponent(inputComponent)