Add leaderboard functionality with Redis integration for scores. This includes a global leaderboard system, server-side score submission handling, and real-time player ranking updates. Refactor and improve collision logic and game state management for better player experience.

cmd/server/main.go

@@ -28,6 +28,11 @@ func main() {
 	globalWorld = game.NewWorld()
 	loadServerAssets(globalWorld)
 
+	// 1b. Redis-Leaderboard initialisieren
+	if err := server.InitLeaderboard("localhost:6379"); err != nil {
+		log.Fatal("❌ Konnte nicht zu Redis verbinden: ", err)
+	}
+
 	// 2. NATS VERBINDUNG
 	natsURL := "nats://localhost:4222"
 	nc, err := nats.Connect(natsURL)
@@ -99,6 +104,22 @@ func main() {
 		}
 	})
 
+	// 5. HANDLER: SCORE SUBMISSION
+	_, _ = ec.Subscribe("score.submit", func(submission *game.ScoreSubmission) {
+		log.Printf("📊 Score-Submission: %s (%s) mit %d Punkten", submission.PlayerName, submission.PlayerCode, submission.Score)
+		added := server.GlobalLeaderboard.AddScore(submission.PlayerName, submission.PlayerCode, submission.Score)
+		if added {
+			log.Printf("✅ Score akzeptiert für %s", submission.PlayerName)
+		}
+	})
+
+	// 6. HANDLER: LEADERBOARD REQUEST
+	_, _ = ec.Subscribe("leaderboard.get", func(subject, reply string, _ *struct{}) {
+		top10 := server.GlobalLeaderboard.GetTop10()
+		log.Printf("📊 Leaderboard-Request beantwortet: %d Einträge", len(top10))
+		ec.Publish(reply, top10)
+	})
+
 	log.Println("✅ Server bereit. Warte auf Spieler...")
 
 	// Block forever