51 lines
1.5 KiB
C#
51 lines
1.5 KiB
C#
using Engine.Core;
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namespace Engine.Systems.StateMachine;
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public abstract class StateBehaviourBase : Behaviour, IState
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{
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public Event<IState> OnStateUpdate { get; } = new();
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public Event<IState, IState.StateTransitionedFromArguments> OnStateTransitionedFrom { get; } = new();
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public Event<IState, IState.StateTransitionedToArguments> OnStateTransitionedTo { get; } = new();
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public Event<IState, IState.StateTransitionReadyArguments> OnStateTransitionReady { get; } = new();
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public Event<INameable, INameable.NameChangedArguments> OnNameChanged { get; } = new();
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private string _name = string.Empty;
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public string Name
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{
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get => _name;
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set
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{
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if (_name.CompareTo(value) == 0)
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return;
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string previousName = _name;
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_name = value;
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OnNameChanged?.Invoke(this, new(previousName));
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}
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}
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protected virtual void OnUpdateState() { }
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public void Update()
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{
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OnUpdateState();
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OnStateUpdate?.Invoke(this);
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}
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protected virtual void OnTransitionedToState(IState from) { }
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public void TransitionTo(IState from)
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{
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OnTransitionedToState(from);
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OnStateTransitionedTo?.Invoke(this, new(from));
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}
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protected virtual void OnTransitionedFromState(IState to) { }
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public void TransitionFrom(IState to)
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{
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OnTransitionedFromState(to);
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OnStateTransitionedFrom?.Invoke(this, new(to));
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}
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public abstract IState? GetNextState();
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}
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