Syntriax/Syntriax.Engine
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Syntriax
2025-05-30 16:05:49 +03:00
committed by Syntriax
parent 846aa75dd5
commit b5140a94de
57 changed files with 437 additions and 462 deletions
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22
Engine.Systems/StateMachine/StateMachine.cs
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@@ -5,9 +5,17 @@ namespace Syntriax.Engine.Systems.StateMachine;
public class StateMachine : Behaviour
{
public event StateChangedEventHandler? OnStateChanged = null;
public Event<StateMachine, StateChangedArguments> OnStateChanged { get; init; } = new();
private readonly Event<IState, IState.StateTransitionReadyArguments>.EventHandler cachedOnStateTransitionReady = null!;
private IState _state = new State();
public StateMachine()
{
cachedOnStateTransitionReady = OnStateTransitionReady;
}
[Serialize]
public IState State
{
@@ -18,20 +26,20 @@ public class StateMachine : Behaviour
return;
IState previousState = _state;
previousState.OnStateTransitionReady -= OnStateTransitionReady;
previousState.OnStateTransitionReady.RemoveListener(cachedOnStateTransitionReady);
_state = value;
previousState.TransitionFrom(value);
value.TransitionTo(_state);
OnStateChanged?.Invoke(this, previousState, value);
OnStateChanged?.Invoke(this, new(value, previousState));
value.OnStateTransitionReady += OnStateTransitionReady;
value.OnStateTransitionReady.AddListener(cachedOnStateTransitionReady);
}
}
private void OnStateTransitionReady(IState sender, IState toState)
private void OnStateTransitionReady(IState sender, IState.StateTransitionReadyArguments arguments)
{
State = toState;
State = arguments.ToState;
while (State.GetNextState() is IState nextState)
State = nextState;
}
@@ -47,5 +55,5 @@ public class StateMachine : Behaviour
State.Update();
}
public delegate void StateChangedEventHandler(StateMachine sender, IState previousState, IState newState);
public readonly record struct StateChangedArguments(IState CurrentState, IState PreviousState);
}