62 lines
1.3 KiB
C#
62 lines
1.3 KiB
C#
using System;
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namespace BITKit
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{
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public interface IOptional
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{
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bool Allow { get; }
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object Value { get; }
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}
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public interface IOptional<T>
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{
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bool Allow { get; set; }
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T Value { get; set; }
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T IfNotAllow(T value);
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}
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[System.Serializable]
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public class Optional<T> : IOptional<T>
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{
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#if NET5_0_OR_GREATER
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bool allow;
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T value;
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#else
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[UnityEngine.SerializeField]
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bool allow;
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[UnityEngine.SerializeField]
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T value;
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#endif
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public bool Allow { get => allow; set => allow = value;}
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public T Value
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{
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get => value;
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set=>this.value=value;
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}
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public T IfNotAllow(T other)
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{
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return Allow ? Value : other;
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}
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public T IfNotAllow(Func<T> other)
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{
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return Allow ? Value : other.Invoke();
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}
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public void SetValueThenAllow(T newValue)
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{
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value = newValue;
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allow = true;
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}
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public void Clear()
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{
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Allow = false;
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value = default;
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}
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public static implicit operator T(Optional<T> self)
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{
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return self.value;
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}
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}
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}
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