Added tower click detection

source/core/src/main/com/csse3200/game/areas/ForestGameArea.java

@@ -271,6 +271,10 @@ public void create() {
 //    spawnWeaponTower();
 //    spawnGapScanners();
 //    spawnDroidTower();
+    spawnScrap();
+    spawnDroidTower();
+    spawnTNTTower();
+    spawnIncome();
 
   }
 

source/core/src/main/com/csse3200/game/entities/factories/TowerFactory.java

@@ -24,7 +24,7 @@
 import com.csse3200.game.rendering.AnimationRenderComponent;
 import com.csse3200.game.rendering.TextureRenderComponent;
 import com.csse3200.game.services.ServiceLocator;
-
+import com.csse3200.game.input.UpgradeUIComponent;
 /**
  * Factory to create a tower entity.
  *
@@ -315,7 +315,7 @@ public static Entity createBaseTower() {
                 .addComponent(new HitboxComponent().setLayer(PhysicsLayer.TOWER)) // TODO: we might have to change the names of the layers
                 .addComponent(new PhysicsComponent().setBodyType(BodyType.StaticBody))
                 .addComponent(new TowerUpgraderComponent());
-
+        tower.setLayer(1); // Set priority to 1, which is 1 below scrap (which is 0)
         return tower;
     }
 }

source/core/src/main/com/csse3200/game/input/UpgradeUIComponent.java

@@ -0,0 +1,62 @@
+package com.csse3200.game.input;
+
+import com.badlogic.gdx.graphics.Camera;
+import com.badlogic.gdx.math.Vector2;
+import com.badlogic.gdx.math.Vector3;
+import com.csse3200.game.areas.ForestGameArea;
+import com.csse3200.game.components.tower.TowerUpgraderComponent;
+import com.csse3200.game.entities.Entity;
+import com.csse3200.game.entities.EntityService;
+import com.csse3200.game.services.ServiceLocator;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class UpgradeUIComponent extends InputComponent {
+    private static final Logger logger = LoggerFactory.getLogger(ForestGameArea.class);
+    private final EntityService entityService;
+    private final Camera camera;
+    int value;
+
+    /**
+     * Constructor for the UpgradeUIComponent
+     * @param camera the camera to be used, this is the camera that the game is rendered with
+     */
+    public UpgradeUIComponent(Camera camera) {
+        this.value = ServiceLocator.getCurrencyService().getScrap().getAmount();
+        this.entityService = ServiceLocator.getEntityService();
+        this.camera = camera;
+    }
+
+    /**
+     * Getter for the camera
+     * @return the camera
+     */
+    public Camera getCamera() {
+        return camera;
+    }
+
+    /**
+     * When the mouse is clicked, this method is called.
+     *
+     * @param screenX The x coordinate, origin is in the upper left corner
+     * @param screenY The y coordinate, origin is in the upper left corner
+     * @param pointer the pointer for the event.
+     * @param button the button
+     * @return
+     */
+    @Override
+    public boolean touchDown(int screenX, int screenY, int pointer, int button) {
+        Vector3 worldCoordinates = new Vector3((float)  screenX , (float) screenY, 0);
+        getCamera().unproject(worldCoordinates); // translate from screen to world coordinates
+        Vector2 cursorPosition = new Vector2(worldCoordinates.x, worldCoordinates.y);
+        Entity clickedEntity = entityService.getEntityAtPosition(cursorPosition.x, cursorPosition.y);
+
+        if (clickedEntity != null && clickedEntity.getComponent(TowerUpgraderComponent.class) != null) {
+            logger.info("clicked a turret that is upgradable!");
+            return true;
+        }
+        return false;
+    }
+
+
+}

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

@@ -32,6 +32,8 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.security.Provider;
+
 /**
  * The game screen containing the main game.
  *
@@ -95,7 +97,9 @@ public MainGameScreen(GdxGame game) {
 
     /* Input components */
     InputComponent dropInputHandler = new DropInputComponent(renderer.getCamera().getCamera());
+    InputComponent upgradeInputHandler = new UpgradeUIComponent(renderer.getCamera().getCamera());
     ServiceLocator.getInputService().register(dropInputHandler);
+    ServiceLocator.getInputService().register(upgradeInputHandler);
 
     InputComponent engineerInputHandler = new EngineerInputComponent(game, renderer.getCamera().getCamera());
     ServiceLocator.getInputService().register(engineerInputHandler);