add quit channel to clean up after self

main.go

@@ -52,7 +52,7 @@ func main() {
 	game.Player.Model = game.Models[modelIndex].Model
 	game.Player.Texture = game.Models[modelIndex].Texture
 
-	go network.HandleServerCommunication(conn, playerID, game.Player, game.OtherPlayers)
+	go network.HandleServerCommunication(conn, playerID, game.Player, game.OtherPlayers, game.QuitChan)
 
 	rl.PlayMusicStream(game.Music)
 	rl.SetMusicVolume(game.Music, 0.5)
@@ -65,4 +65,7 @@ func main() {
 		game.Update(deltaTime)
 		game.Render()
 	}
+
+	// Wait for clean shutdown
+	<-game.QuitChan
 }