Add player name visibility toggle and enhance display logic in lobby and results screens

client/src/common/styles/components/lobby-screen.sass

@@ -179,13 +179,27 @@
       padding: 2rem
       width: 90%
       max-width: 500px
+      border: 6px solid #000
+      box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.5)
+      animation: modal-appear 0.3s ease-out
       
       h2
         margin-top: 0
         color: $primary
+        font-family: 'Press Start 2P', monospace
+        font-size: 1.4rem
+        margin-bottom: 1.5rem
         
       .modal-actions
         display: flex
         justify-content: flex-end
         gap: 1rem
         margin-top: 2rem
+        
+  @keyframes modal-appear
+    0%
+      transform: scale(0.8)
+      opacity: 0
+    100%
+      transform: scale(1)
+      opacity: 1

client/src/common/styles/components/results-screen.sass

@@ -243,6 +243,14 @@
                 padding: 0.25rem 0.5rem
                 border-radius: 1rem
                 background-color: rgba(255, 255, 255, 0.1)
+                margin-right: 0.5rem
+              
+              .submitter
+                display: block
+                font-size: 0.8rem
+                color: $text-muted
+                margin-top: 0.5rem
+                font-style: italic
 
           .versus
             font-family: 'Bangers', cursive

client/src/common/styles/forms.sass

@@ -53,8 +53,17 @@
     border: 3px solid #000
     position: relative
     cursor: pointer
+    box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.2)
+    transition: all 0.2s ease
     
-    &:checked:after
+    &:hover
+      border-color: $secondary
+    
+    &:checked
+      background-color: rgba($primary, 0.2)
+      border-color: $primary
+      
+      &:after
         content: ''
         position: absolute
         left: 6px
@@ -86,6 +95,31 @@
   gap: 1rem
   margin-top: 1.5rem
 
+// Checkbox group with helper text
+.checkbox-group
+  display: flex
+  flex-direction: column
+  margin-bottom: 1.5rem
+  
+  .checkbox-container
+    display: flex
+    align-items: center
+    margin-bottom: 0.5rem
+    
+    input[type="checkbox"]
+      margin-right: 0.75rem
+      min-width: 24px
+      height: 24px
+    
+    label
+      margin-bottom: 0
+      margin-top: 0
+      cursor: pointer
+      font-family: 'Press Start 2P', monospace
+      font-size: 0.8rem
+      text-transform: uppercase
+      color: $secondary
+
 // Buttons
 .btn
   display: inline-flex

client/src/components/HomeScreen.jsx

@@ -89,7 +89,7 @@ const HomeScreen = () => {
       </div>
       
       <footer className="home-footer">
-        <p>ich weiß doch auch nicht</p>
+        <p>ik wes doch och nüsch</p>
       </footer>
     </div>
   );

client/src/components/LobbyScreen.jsx

@@ -2,13 +2,15 @@ import { useState, useEffect } from 'react';
 import { useGame } from '../context/GameContext';
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
 import { faUsers, faGear, faPlay, faCopy, faSignOutAlt } from '@fortawesome/free-solid-svg-icons';
+import { getDisplayName } from '../utils/playerUtils';
 
 const LobbyScreen = () => {
   const { lobby, currentPlayer, isHost, updateSettings, startGame, leaveLobby } = useGame();
   const [showSettings, setShowSettings] = useState(false);
   const [settings, setSettings] = useState({
     songsPerPlayer: 4,
-    maxPlayers: 10
+    maxPlayers: 10,
+    hidePlayerNames: false
   });
   const [copied, setCopied] = useState(false);
 
@@ -64,9 +66,11 @@ const LobbyScreen = () => {
         <div className="players-list">
           <h2><FontAwesomeIcon icon={faUsers} /> Spieler ({lobby.players.length})</h2>
           <ul>
-            {lobby.players.map(player => (
+            {lobby.players.map((player, index) => (
               <li key={player.id} className={`player ${!player.isConnected ? 'disconnected' : ''} ${player.id === lobby.hostId ? 'host' : ''}`}>
-                {player.name} {player.id === lobby.hostId && '(Gastgeber)'} {player.id === currentPlayer.id && '(Du)'} 
+                {getDisplayName(player, lobby, currentPlayer, index)} 
+                {player.id === lobby.hostId && ' (Gastgeber)'} 
+                {player.id === currentPlayer.id && !lobby.settings.hidePlayerNames && ' (Du)'} 
                 {!player.isConnected && <span className="status-disconnected">(Getrennt)</span>}
               </li>
             ))}
@@ -78,6 +82,7 @@ const LobbyScreen = () => {
             <h3><FontAwesomeIcon icon={faGear} /> Spieleinstellungen</h3>
             <p>Lieder pro Spieler: {settings.songsPerPlayer}</p>
             <p>Maximale Spieler: {settings.maxPlayers}</p>
+            <p>Spielernamen verbergen: {settings.hidePlayerNames ? 'Ja' : 'Nein'}</p>
             
             {isHost && (
               <button className="btn secondary" onClick={() => setShowSettings(true)}>
@@ -138,6 +143,19 @@ const LobbyScreen = () => {
               />
             </div>
             
+            <div className="form-group checkbox-group">
+              <div className="checkbox-container">
+                <input
+                  type="checkbox"
+                  id="hidePlayerNames"
+                  name="hidePlayerNames"
+                  checked={settings.hidePlayerNames}
+                  onChange={handleSettingsChange}
+                />
+                <label htmlFor="hidePlayerNames">Spielernamen verbergen</label>
+              </div>
+            </div>
+            
             <div className="modal-actions">
               <button className="btn secondary" onClick={() => setShowSettings(false)}>
                 Abbrechen

client/src/components/ResultsScreen.jsx

@@ -3,6 +3,7 @@ import { useGame } from '../context/GameContext';
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
 import { faTrophy, faHome, faRedo, faChartLine } from '@fortawesome/free-solid-svg-icons';
 import YouTubeEmbed from './YouTubeEmbed';
+import { getDisplayName } from '../utils/playerUtils';
 
 const ResultsScreen = () => {
   const { lobby, currentPlayer, leaveLobby } = useGame();
@@ -73,6 +74,12 @@ const ResultsScreen = () => {
     return (match && match[2].length === 11) ? match[2] : null;
   }
   
+  // Find the submitter from the player list
+  const findSubmitter = (submitterId) => {
+    if (!lobby || !lobby.players) return null;
+    return lobby.players.find(player => player.id === submitterId);
+  };
+
   if (!winner) {
     return (
       <div className="results-screen">
@@ -81,6 +88,9 @@ const ResultsScreen = () => {
     );
   }
 
+  // Find the player who submitted the winning song
+  const submitter = findSubmitter(winner.submittedBy);
+
   return (
     <div className="results-screen">
       <header>
@@ -91,7 +101,11 @@ const ResultsScreen = () => {
         <div className="winner-info">
           <h2>{winner.title}</h2>
           <h3>von {winner.artist}</h3>
-          <p className="submitter">Eingereicht von: {winner.submittedByName}</p>
+          <p className="submitter">
+            Eingereicht von: {submitter 
+              ? getDisplayName(submitter, lobby, currentPlayer) 
+              : (lobby?.settings?.hidePlayerNames ? 'Anonymer Spieler' : winner.submittedByName)}
+          </p>
         </div>
         
         {winnerVideoId ? (
@@ -129,6 +143,10 @@ const ResultsScreen = () => {
               const song1VideoId = getYouTubeId(battle.song1?.youtubeLink);
               const song2VideoId = battle.song2 ? getYouTubeId(battle.song2.youtubeLink) : null;
               
+              // Find the players who submitted the songs
+              const song1Submitter = findSubmitter(battle.song1?.submittedBy);
+              const song2Submitter = battle.song2 ? findSubmitter(battle.song2?.submittedBy) : null;
+              
               // Freilos-Runden behandeln
               const isByeRound = battle.bye === true || !battle.song2;
               
@@ -144,6 +162,13 @@ const ResultsScreen = () => {
                         <h5>{battle.song1.title}</h5>
                         <p>{battle.song1.artist}</p>
                         <span className="votes">{battle.song1Votes} Stimmen</span>
+                        {!lobby?.settings?.hidePlayerNames && (
+                          <span className="submitter">
+                            Eingereicht von: {song1Submitter 
+                              ? getDisplayName(song1Submitter, lobby, currentPlayer) 
+                              : battle.song1?.submittedByName || 'Unbekannt'}
+                          </span>
+                        )}
                       </div>
                     </div>
                     
@@ -155,6 +180,13 @@ const ResultsScreen = () => {
                           <h5>{battle.song2.title}</h5>
                           <p>{battle.song2.artist}</p>
                           <span className="votes">{battle.song2Votes} Stimmen</span>
+                          {!lobby?.settings?.hidePlayerNames && (
+                            <span className="submitter">
+                              Eingereicht von: {song2Submitter 
+                                ? getDisplayName(song2Submitter, lobby, currentPlayer) 
+                                : battle.song2?.submittedByName || 'Unbekannt'}
+                            </span>
+                          )}
                         </div>
                       </div>
                     ) : (

client/src/components/SongSubmissionScreen.jsx

@@ -2,6 +2,7 @@ import { useState, useEffect, useRef } from 'react';
 import { useGame } from '../context/GameContext';
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
 import { faPlus, faTrash, faCheck, faMusic, faVideoCamera, faSearch, faSpinner, faExternalLinkAlt, faTimes } from '@fortawesome/free-solid-svg-icons';
+import { getDisplayName } from '../utils/playerUtils';
 
 const SongSubmissionScreen = () => {
   const { lobby, currentPlayer, addSong, removeSong, setPlayerReady, searchYouTube, getYouTubeMetadata } = useGame();
@@ -502,9 +503,9 @@ const SongSubmissionScreen = () => {
           <div className="player-status">
             <h4>Spieler bereit</h4>
             <ul className="players-ready-list">
-              {lobby && lobby.players.map(player => (
+              {lobby && lobby.players.map((player, index) => (
                 <li key={player.id} className={player.isReady ? 'ready' : 'not-ready'}>
-                  {player.name} {player.id === currentPlayer.id && '(Du)'} 
+                  {getDisplayName(player, lobby, currentPlayer, index)} {player.id === currentPlayer.id && lobby.settings.hidePlayerNames && '(Du)'} 
                   {player.isReady ? (
                     <FontAwesomeIcon icon={faCheck} className="ready-icon" />
                   ) : (

client/src/components/VotingScreen.jsx

@@ -4,6 +4,7 @@ import { useGame } from '../context/GameContext';
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
 import { faVoteYea, faTrophy, faMusic, faCheck, faMedal, faCrown, faExclamationTriangle } from '@fortawesome/free-solid-svg-icons';
 import YouTubeEmbed from './YouTubeEmbed';
+import { getDisplayName } from '../utils/playerUtils';
 
 function VotingScreen() {
   const { lobby, currentPlayer, submitVote, isHost, isOffline, isReconnecting } = useGame();
@@ -356,7 +357,7 @@ function VotingScreen() {
               
               return (
                 <li key={player.id} className={`${hasPlayerVoted ? 'voted' : 'not-voted'} ${isCurrentPlayerOfflineVoted ? 'offline-voted' : ''}`}>
-                  {player.name} {player.id === currentPlayer.id && '(Du)'}
+                  {getDisplayName(player, lobby, currentPlayer)} {player.id === currentPlayer.id && lobby.settings.hidePlayerNames && '(Du)'}
                   {hasPlayerVoted && 
                     <FontAwesomeIcon icon={faCheck} className="vote-icon" />
                   }

client/src/utils/playerUtils.js

@@ -0,0 +1,45 @@
+/**
+ * Utility functions for player name handling
+ */
+
+/**
+ * Returns an anonymous name for a player when hidePlayerNames is enabled
+ * @param {string} playerId - The player's ID
+ * @param {number} index - The player's index in a list (optional)
+ * @param {boolean} isCurrentPlayer - Whether this is the current player
+ * @returns {string} - Anonymous name or indicator
+ */
+export const getAnonymousName = (playerId, index = null, isCurrentPlayer = false) => {
+  if (isCurrentPlayer) {
+    return 'Du';
+  }
+  
+  // Use index-based naming if provided
+  if (index !== null) {
+    return `Spieler ${index + 1}`;
+  }
+  
+  // Use last 4 characters of ID as fallback
+  const shortId = playerId.slice(-4);
+  return `Spieler ${shortId}`;
+};
+
+/**
+ * Returns the appropriate player name based on game settings
+ * @param {Object} player - The player object
+ * @param {Object} lobby - The lobby object
+ * @param {Object} currentPlayer - The current player
+ * @param {number} index - The player's index in a list (optional)
+ * @returns {string} - The player name or anonymous identifier
+ */
+export const getDisplayName = (player, lobby, currentPlayer, index = null) => {
+  const isCurrentPlayer = player.id === currentPlayer?.id;
+  
+  // If hidePlayerNames is enabled
+  if (lobby?.settings?.hidePlayerNames) {
+    return getAnonymousName(player.id, index, isCurrentPlayer);
+  }
+  
+  // Otherwise return the actual name
+  return player.name;
+};

server/game.js

@@ -28,7 +28,8 @@ class GameManager {
       settings: {
         songsPerPlayer: 3,
         maxPlayers: 10,
-        minPlayers: 3
+        minPlayers: 3,
+        hidePlayerNames: false
       },
       players: [{
         id: hostId,
@@ -225,6 +226,11 @@ class GameManager {
       return { error: 'Max players must be between 3 and 20' };
     }
     
+    // Validate boolean settings
+    if (settings.hidePlayerNames !== undefined && typeof settings.hidePlayerNames !== 'boolean') {
+      settings.hidePlayerNames = Boolean(settings.hidePlayerNames);
+    }
+    
     // Update settings
     lobby.settings = {
       ...lobby.settings,