feat: add audio features and sounds to the game

frontend/src/app/app.component.ts

@@ -1,10 +1,12 @@
-import { Component, HostListener, signal } from '@angular/core';
+import { Component, HostListener, inject, signal } from '@angular/core';
 import { RouterOutlet } from '@angular/router';
 import { NavbarComponent } from './shared/components/navbar/navbar.component';
 import { FooterComponent } from './shared/components/footer/footer.component';
 import { LoginComponent } from './feature/auth/login/login.component';
 import { RegisterComponent } from './feature/auth/register/register.component';
 import { RecoverPasswordComponent } from './feature/auth/recover-password/recover-password.component';
+import { PlaySoundDirective } from './shared/directives/play-sound.directive';
+import { SoundInitializerService } from './shared/services/sound-initializer.service';
 
 @Component({
   selector: 'app-root',
@@ -16,14 +18,22 @@ import { RecoverPasswordComponent } from './feature/auth/recover-password/recove
     LoginComponent,
     RegisterComponent,
     RecoverPasswordComponent,
+    PlaySoundDirective,
   ],
   templateUrl: './app.component.html',
+  hostDirectives: [PlaySoundDirective]
 })
 export class AppComponent {
+  private soundInitializer = inject(SoundInitializerService);
+  
   showLogin = signal(false);
   showRegister = signal(false);
   showRecoverPassword = signal(false);
 
+  constructor() {
+    this.soundInitializer.initialize();
+  }
+
   @HostListener('document:keydown.escape')
   handleEscapeKey() {
     this.hideAuthForms();

frontend/src/app/feature/game/blackjack/blackjack.component.ts

@@ -14,6 +14,7 @@ import { UserService } from '@service/user.service';
 import { timer } from 'rxjs';
 import { DebtDialogComponent } from '@shared/components/debt-dialog/debt-dialog.component';
 import { AuthService } from '@service/auth.service';
+import { AudioService } from '@shared/services/audio.service';
 
 @Component({
   selector: 'app-blackjack',
@@ -35,6 +36,7 @@ export default class BlackjackComponent implements OnInit {
   private userService = inject(UserService);
   private authService = inject(AuthService);
   private blackjackService = inject(BlackjackService);
+  private audioService = inject(AudioService);
 
   dealerCards = signal<Card[]>([]);
   playerCards = signal<Card[]>([]);
@@ -91,6 +93,9 @@ export default class BlackjackComponent implements OnInit {
         // Show the result dialog after refreshing user data
         timer(500).subscribe(() => {
           this.showGameResult.set(true);
+          if (game.state === GameState.PLAYER_WON || game.state === GameState.PLAYER_BLACKJACK) {
+            this.audioService.playWinSound();
+          }
           console.log('Game result dialog shown after delay');
         });
       });
@@ -99,6 +104,7 @@ export default class BlackjackComponent implements OnInit {
 
   onNewGame(bet: number): void {
     this.isActionInProgress.set(true);
+    this.audioService.playBetSound();
 
     this.blackjackService.startGame(bet).subscribe({
       next: (game) => {
@@ -117,6 +123,7 @@ export default class BlackjackComponent implements OnInit {
     if (!this.currentGameId() || this.isActionInProgress()) return;
 
     this.isActionInProgress.set(true);
+    this.audioService.playBetSound();
 
     this.blackjackService.hit(this.currentGameId()!).subscribe({
       next: (game) => {
@@ -143,6 +150,7 @@ export default class BlackjackComponent implements OnInit {
     }
 
     this.isActionInProgress.set(true);
+    this.audioService.playBetSound();
 
     this.blackjackService.stand(this.currentGameId()!).subscribe({
       next: (game) => {
@@ -167,6 +175,7 @@ export default class BlackjackComponent implements OnInit {
     }
 
     this.isActionInProgress.set(true);
+    this.audioService.playBetSound();
 
     this.blackjackService.doubleDown(this.currentGameId()!).subscribe({
       next: (game) => {

frontend/src/app/feature/game/slots/slots.component.ts

@@ -40,6 +40,7 @@ export default class SlotsComponent implements OnInit, OnDestroy {
   private userService = inject(UserService);
   private authService = inject(AuthService);
   private userSubscription: Subscription | undefined;
+  private winSound: HTMLAudioElement;
 
   slotInfo = signal<Record<string, number> | null>(null);
   slotResult = signal<SlotResult>({
@@ -56,6 +57,10 @@ export default class SlotsComponent implements OnInit, OnDestroy {
   betAmount = signal<number>(1);
   isSpinning = false;
 
+  constructor() {
+    this.winSound = new Audio('/sounds/win.mp3');
+  }
+
   ngOnInit(): void {
     this.httpClient.get<Record<string, number>>('/backend/slots/info').subscribe((data) => {
       this.slotInfo.set(data);
@@ -111,6 +116,7 @@ export default class SlotsComponent implements OnInit, OnDestroy {
           this.slotResult.set(result);
 
           if (result.status === 'win') {
+            this.winSound.play();
             this.userService.updateLocalBalance(result.amount);
           }
 

frontend/src/app/feature/lootboxes/lootbox-opening/lootbox-opening.component.ts

@@ -24,6 +24,7 @@ export default class LootboxOpeningComponent {
   prizeList: Reward[] = [];
   animationCompleted = false;
   currentUser: User | null = null;
+  private winSound: HTMLAudioElement;
 
   constructor(
     private route: ActivatedRoute,
@@ -33,6 +34,7 @@ export default class LootboxOpeningComponent {
     private authService: AuthService,
     private cdr: ChangeDetectorRef
   ) {
+    this.winSound = new Audio('/sounds/win.mp3');
     this.loadLootbox();
     this.authService.userSubject.subscribe((user) => {
       this.currentUser = user;
@@ -145,6 +147,7 @@ export default class LootboxOpeningComponent {
       this.animationCompleted = true;
 
       if (this.wonReward) {
+        this.winSound.play();
         this.userService.updateLocalBalance(this.wonReward.value);
       }
 

frontend/src/app/shared/directives/play-sound.directive.ts

@@ -0,0 +1,15 @@
+import { Directive, HostListener, inject } from '@angular/core';
+import { AudioService } from '../services/audio.service';
+
+@Directive({
+  selector: '[appPlaySound]',
+  standalone: true
+})
+export class PlaySoundDirective {
+  private audioService = inject(AudioService);
+
+  @HostListener('click')
+  onClick() {
+    this.audioService.playBetSound();
+  }
+} 

frontend/src/app/shared/services/audio.service.ts

@@ -0,0 +1,29 @@
+import { Injectable } from '@angular/core';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class AudioService {
+  private audioCache = new Map<string, HTMLAudioElement>();
+
+  private getAudio(soundName: string): HTMLAudioElement {
+    if (!this.audioCache.has(soundName)) {
+      const audio = new Audio(`/sounds/${soundName}`);
+      this.audioCache.set(soundName, audio);
+      return audio;
+    }
+    return this.audioCache.get(soundName)!;
+  }
+
+  playBetSound(): void {
+    const audio = this.getAudio('bet.mp3');
+    audio.currentTime = 0;
+    audio.play().catch(error => console.error('Error playing bet sound:', error));
+  }
+
+  playWinSound(): void {
+    const audio = this.getAudio('win.mp3');
+    audio.currentTime = 0;
+    audio.play().catch(error => console.error('Error playing win sound:', error));
+  }
+} 

frontend/src/app/shared/services/sound-initializer.service.ts

@@ -0,0 +1,48 @@
+import { Injectable, Renderer2, RendererFactory2 } from '@angular/core';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class SoundInitializerService {
+  private renderer: Renderer2;
+  private observer: MutationObserver;
+
+  constructor(rendererFactory: RendererFactory2) {
+    this.renderer = rendererFactory.createRenderer(null, null);
+    
+    this.observer = new MutationObserver((mutations) => {
+      mutations.forEach((mutation) => {
+        mutation.addedNodes.forEach((node) => {
+          if (node instanceof HTMLElement) {
+            this.processElement(node);
+          }
+        });
+      });
+    });
+  }
+
+  initialize() {
+    document.querySelectorAll('button, a').forEach(element => {
+      if (!element.hasAttribute('appPlaySound')) {
+        this.renderer.setAttribute(element, 'appPlaySound', '');
+      }
+    });
+
+    this.observer.observe(document.body, {
+      childList: true,
+      subtree: true
+    });
+  }
+
+  private processElement(element: HTMLElement) {
+    if ((element.tagName === 'BUTTON' || element.tagName === 'A') && !element.hasAttribute('appPlaySound')) {
+      this.renderer.setAttribute(element, 'appPlaySound', '');
+    }
+
+    element.querySelectorAll('button, a').forEach(child => {
+      if (!child.hasAttribute('appPlaySound')) {
+        this.renderer.setAttribute(child, 'appPlaySound', '');
+      }
+    });
+  }
+} 

frontend/src/styles.css

@@ -174,3 +174,15 @@ a {
 .modal-card .button-secondary {
   @apply bg-deep-blue-light/50 hover:bg-deep-blue-light w-full py-2.5 my-2 border border-deep-blue-light/30 hover:border-deep-blue-light/50;
 }
+
+button, a {
+  -webkit-tap-highlight-color: transparent;
+}
+
+button[appPlaySound], a[appPlaySound] {
+  cursor: pointer;
+}
+
+button:not([appPlaySound]), a:not([appPlaySound]) {
+  --add-sound-directive: true;
+}