public static GameEngine CreateGameEngine(GameState state, ICharacterBehavior characterBehavior = null, ISkillEngine skillEngine = null, IEffectEngine effectEngine = null)
{
characterBehavior = characterBehavior ?? new TestCharacterBehavior();
effectEngine = effectEngine ?? EffectEngine;
skillEngine = skillEngine ?? new SkillEngine(effectEngine);
return(new GameEngine(state, characterBehavior, skillEngine, effectEngine));
}