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server/src/utils/nameManager.ts

@@ -14,18 +14,27 @@ export class NameManager {
 
   generateUniquePlayerName(baseName: string, sessionId: string): string {
     const normalizedName = baseName.trim().toLowerCase();
-    
     if (!normalizedName) {
-      return this.generateUniquePlayerName('player', sessionId);
+      // Default base name when none is provided
+      return this.generateUniquePlayerName('guest', sessionId);
     }
 
-    const currentCounter = this.nameCounters.get(normalizedName) || 0;
-    const newCounter = currentCounter + 1;
-    this.nameCounters.set(normalizedName, newCounter);
+    // Try exact name if not in use; otherwise, append incremental suffixes
+    const isInUse = (name: string) => {
+      for (const val of this.sessionToName.values()) {
+        if (val === name) return true;
+      }
+      return false;
+    };
+
+    let uniqueName = normalizedName;
+    if (isInUse(uniqueName)) {
+      let n = 2;
+      while (isInUse(`${normalizedName}-${n}`)) n++;
+      uniqueName = `${normalizedName}-${n}`;
+    }
 
-    const uniqueName = newCounter === 1 ? normalizedName : `${normalizedName}-${newCounter}`;
     this.sessionToName.set(sessionId, uniqueName);
-
     return uniqueName;
   }
 
@@ -43,4 +52,4 @@ export class NameManager {
   getAllActivePlayers(): string[] {
     return Array.from(this.sessionToName.values());
   }
-}
+}