private void InstantiateSystemsManager()
{
SystemsManager = Instantiate(new GameObject());
SystemsManager.name = "SystemsManager";
movementSystem = SystemsManager.AddComponent <MovementSystem>();
keyboardInputSystem = SystemsManager.AddComponent <KeyboardInputSystem>();
mouseInputSystem = SystemsManager.AddComponent <MouseInputSystem>();
factorySystem = SystemsManager.AddComponent <FactorySystem>();
lSystemSystem = SystemsManager.AddComponent <LSystemSystem>();
lSystemFactorySystem = SystemsManager.AddComponent <LSystemFactorySystem>();
entityPool = SystemsManager.AddComponent <EntityPool>();
entityPool.InitialiseEntitiesList();
movementSystem.entityPool = entityPool;
keyboardInputSystem.entityPool = entityPool;
mouseInputSystem.entityPool = entityPool;
factorySystem.entityPool = entityPool;
lSystemSystem.entityPool = entityPool;
lSystemFactorySystem.entityPool = entityPool;
}