added shortcut key functionality for build menu

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

@@ -87,6 +87,11 @@ private void addActors() {
             }
         }
 
+        // Update the centrally located towerTypes list -
+        logger.info("In UIElementsDisplay, the towers being sent to ServiceLocator are " + towers);
+        ServiceLocator.setTowerTypes(towers);
+
+        // Create the buttons - TODO This needs overhauling to pretty buttons
         TextButton tower1 = new TextButton(towers.get(0).getTowerName(), skin);
         TextButton tower2 = new TextButton(towers.get(1).getTowerName(), skin);
         TextButton tower3 = new TextButton(towers.get(2).getTowerName(), skin);

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

@@ -1,15 +1,19 @@
 package com.csse3200.game.input;
 
+import com.badlogic.gdx.Input;
+import com.badlogic.gdx.InputProcessor;
 import com.badlogic.gdx.audio.Sound;
 import com.badlogic.gdx.graphics.Camera;
 import com.badlogic.gdx.math.Vector2;
 import com.badlogic.gdx.math.Vector3;
+import com.badlogic.gdx.utils.Array;
 import com.csse3200.game.areas.ForestGameArea;
 import com.csse3200.game.entities.Entity;
 import com.csse3200.game.entities.EntityService;
 import com.csse3200.game.entities.factories.TowerFactory;
 import com.csse3200.game.screens.TowerType;
 import com.csse3200.game.services.ServiceLocator;
+import com.csse3200.game.utils.math.Vector2Utils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -28,6 +32,7 @@ public class BuildInputComponent extends InputComponent {
     };
     private Sound buildSound;
     private Sound errorSound;
+    private Array<TowerType> towers = new Array<>();
 
     /**
      * Constructor for the BuildInputComponent
@@ -37,6 +42,7 @@ public BuildInputComponent(Camera camera) {
         this.entityService = ServiceLocator.getEntityService();
         this.camera = camera;
         loadSounds();
+        towers.addAll(ServiceLocator.getTowerTypes());
     }
 
     /**
@@ -79,6 +85,35 @@ public boolean touchDown(int screenX, int screenY, int pointer, int button) {
         return false;
     }
 
+    /**
+     * Triggers player events on specific keycodes.
+     *
+     * @return whether the input was processed
+     * @see InputProcessor#keyDown(int)
+     */
+    @Override
+    public boolean keyDown(int keycode) {
+        switch (keycode) {
+            case Input.Keys.NUM_1:
+                ServiceLocator.getCurrencyService().setTowerType(towers.get(0));
+                return true;
+            case Input.Keys.NUM_2:
+                ServiceLocator.getCurrencyService().setTowerType(towers.get(1));
+                return true;
+            case Input.Keys.NUM_3:
+                ServiceLocator.getCurrencyService().setTowerType(towers.get(2));
+                return true;
+            case Input.Keys.NUM_4:
+                ServiceLocator.getCurrencyService().setTowerType(towers.get(3));
+                return true;
+            case Input.Keys.NUM_5:
+                ServiceLocator.getCurrencyService().setTowerType(towers.get(4));
+                return true;
+            default:
+                return false;
+        }
+    }
+
     /**
      * Instantiates and spawns the selected tower at the given x y coordinates on the tile map. Assumes that the given
      * x and y coordinate is valid and that the TowerType exists in the CurrencyService.

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

@@ -20,6 +20,7 @@
 import com.badlogic.gdx.scenes.scene2d.utils.ClickListener;
 import com.badlogic.gdx.scenes.scene2d.utils.Drawable;
 import com.badlogic.gdx.scenes.scene2d.utils.TextureRegionDrawable;
+import com.badlogic.gdx.utils.Array;
 import com.badlogic.gdx.utils.viewport.ScreenViewport;
 import com.csse3200.game.GdxGame;
 import com.csse3200.game.services.ResourceService;
@@ -115,7 +116,12 @@ public void clicked(InputEvent event, float x, float y) {
             @Override
             public void clicked(InputEvent event, float x, float y) {
                 // Store the selected towers in the ServiceLocator for transferring across screens
-                ServiceLocator.setTowerTypes(selectedTurrets);;
+                // (as an Array)
+                Array<TowerType> towers = new Array<>();
+                for (TowerType t : selectedTurrets) {
+                    towers.add(t);
+                }
+                ServiceLocator.setTowerTypes(towers);;
                 game.setScreen(GdxGame.ScreenType.MAIN_GAME);
             }
         });

source/core/src/main/com/csse3200/game/services/ServiceLocator.java

@@ -33,7 +33,7 @@ public class ServiceLocator {
   private static WaveService waveService;
   private static MapService mapService;
 
-  private static Set<TowerType> towerTypes = new HashSet<>();
+  private static Array<TowerType> towerTypes = new Array<>();
 
   public static CurrencyService getCurrencyService() {
       return currencyService;
@@ -120,12 +120,24 @@ public static void registerMapService(MapService source) {
     mapService = source;
   }
 
-  public static void setTowerTypes(Set<TowerType> selectedTowers) {
-    towerTypes.clear();
-    towerTypes.addAll(selectedTowers);
-  }
-
-  public static Set<TowerType> getTowerTypes() {
+  public static void setTowerTypes(Array<TowerType> selectedTowers) {
+    if (towerTypes.isEmpty()) {
+      // set default towers
+      TowerType[] defaultTowers = {
+              TowerType.TNT,
+              TowerType.DROID,
+              TowerType.INCOME,
+              TowerType.WALL,
+              TowerType.WEAPON
+      };
+      towerTypes.addAll(defaultTowers);
+    } else{
+      towerTypes.clear();
+      towerTypes.addAll(selectedTowers);
+    }
+  }
+
+  public static Array<TowerType> getTowerTypes() {
     return towerTypes;
   }