State Machine for Unity (C#)

A flexible finite state machine implementation for Unity game development

📦 Installation

Via Unity Package Manager

1. Open Window > Package Manager
2. Click + > Add package from git URL
3. Paste:
   https://github.com/Trellcko/StateMachine.git

Usage

To use the State Machine in your own scripts, you must reference its assembly definition.

1. In your project, create an .asmdef file (if you don't already have one).
2. In the Inspector, add a reference to the Trellcko.StateMachine assembly.
3. You can now use the package's namespaces in your code:

🛠️ How To Use

Creating States

public class BootstrapState : BaseStateWithoutPayload
{
   private readonly IInitService _initService;

   public BootstrapState(StateMachine stateMachine, IInitService initService) : base(stateMachine)
   {
      _initService = initService;
      GoToState<EmptyState>(()=> _initService.IsInited, 0);  
   }

   public overide void Enter()
   {
      _initService.Init();
   }
}

Implementing the State Machine

public class ExampleBehaviour : MonoBehaviour
{
   private readonly IStateMachine _stateMachine = new StateMachine();
   private readonly IInitService _initService = new();

   private void Awake()
   {
      _stateMachine.AddStates(new EmptyState(_stateMachine),
      new BootstrapState(_stateMachine, _initService));

      _stateMachine.SetState<BootstrapState>();
   }

   private void Update()
   {
      _stateMachine.Update();
   }
}