feat: add health management and UI elements for player lives and score

- Introduced HealthIntValue class for managing player health with callbacks for damage and healing.
- Added Hearts and HorizontalPositiveInteger classes for displaying player lives and score in the UI.
- Updated GameSystem to integrate health management and UI elements during game initialization.

Author: thnhmai06

build.gradle

@@ -75,6 +75,7 @@ spotless {
 
     java {
         target 'src/**/*.java'
+        targetExclude 'src/**/libs/**/*';
 
         googleJavaFormat('1.17.0')
                 .aosp()

src/main/java/com/github/codestorm/bounceverse/AssetsPath.java

@@ -80,8 +80,6 @@ private SFX() {}
     public static final class Textures {
         private Textures() {}
 
-        public static final String ROOT = AssetsPath.ROOT + "/textures";
-
         public static final class Bricks {
             private Bricks() {}
 
@@ -188,6 +186,21 @@ public String toString() {
                 }
             }
         }
+
+        public static final Map<Integer, String> NUMBERS =
+                Map.of(
+                        0, "numbers/0.png",
+                        1, "numbers/1.png",
+                        2, "numbers/2.png",
+                        3, "numbers/3.png",
+                        4, "numbers/4.png",
+                        5, "numbers/5.png",
+                        6, "numbers/6.png",
+                        7, "numbers/7.png",
+                        8, "numbers/8.png",
+                        9, "numbers/9.png");
+
+        public static final String HEART = "/heart.png";
     }
 
     public static final class Other {

src/main/java/com/github/codestorm/bounceverse/factory/entities/PowerUpFactory.java

@@ -49,7 +49,7 @@ protected EntityBuilder getBuilder(SpawnData data) {
     /**
      * Tạo mới một PowerUp. Đây là một "abstract" method.
      *
-     * @param data Dữ liệu Spawn
+     * @param data Dữ liệu EntitySpawn
      * @return Entity PowerUp
      */
     private Entity newPowerUp(SpawnData data) {

src/main/java/com/github/codestorm/bounceverse/factory/entities/WallFactory.java

@@ -85,7 +85,7 @@ protected EntityBuilder getBuilder(SpawnData data) {
     /**
      * Create Top {@link EntityType#WALL}. `
      *
-     * @param data Spawn data
+     * @param data EntitySpawn data
      * @return Top wall
      */
     @Spawns("wallTop")
@@ -97,7 +97,7 @@ public Entity newWallTop(SpawnData data) {
     /**
      * Create Bottom {@link EntityType#WALL}. `
      *
-     * @param data Spawn data
+     * @param data EntitySpawn data
      * @return Botton wall
      */
     @Spawns("wallBottom")
@@ -109,7 +109,7 @@ public Entity newWallBottom(SpawnData data) {
     /**
      * Create Left {@link EntityType#WALL}. `
      *
-     * @param data Spawn data
+     * @param data EntitySpawn data
      * @return Left wall
      */
     @Spawns("wallLeft")
@@ -121,7 +121,7 @@ public Entity newWallLeft(SpawnData data) {
     /**
      * Create Right {@link EntityType#WALL}. `
      *
-     * @param data Spawn data
+     * @param data EntitySpawn data
      * @return Left wall
      */
     @Spawns("wallRight")

src/main/java/com/github/codestorm/bounceverse/systems/init/AppEventSystem.java

@@ -1,6 +1,7 @@
 package com.github.codestorm.bounceverse.systems.init;
 
 import com.almasb.fxgl.app.GameApplication;
+import com.almasb.fxgl.dsl.FXGL;
 import com.github.codestorm.bounceverse.systems.manager.metrics.LeaderboardManager;
 import com.github.codestorm.bounceverse.systems.manager.settings.UserSettingsManager;
 
@@ -21,7 +22,11 @@ public static AppEventSystem getInstance() {
     }
 
     private void onStart() {
+        // User Settings
         UserSettingsManager.getInstance().apply();
+
+        // Save load
+        FXGL.getSaveLoadService().addHandler(GameSystem.Variables.SAVE_LOAD_HANDLER);
     }
 
     private void onExit() {