Creates a unity player if it's not already created. Please only call this if unity is not ready,
or is in unloaded state. Use isLoaded to check.
Returns true if unity player was created succesfully.
Post message to unity from flutter. This method takes in a Json or map structure as the message.
The gameObject must match the name of an actual unity game object in a scene at runtime, and the methodName,
must exist in a MonoDevelopclass and also exposed as a method. message is an parameter taken by the method
Post message to unity from flutter. This method takes in a string message.
The gameObject must match the name of an actual unity game object in a scene at runtime, and the methodName,
must exist in a MonoDevelopclass and also exposed as a method. message is an parameter taken by the method