using System; using System.Globalization; namespace Questionable.Model.Questing; public abstract class ElementId : IComparable<ElementId>, IEquatable<ElementId> { protected ElementId(ushort value) { Value = value; } public ushort Value { get; } public int CompareTo(ElementId? other) { if (ReferenceEquals(this, other)) return 0; if (ReferenceEquals(null, other)) return 1; return Value.CompareTo(other.Value); } public bool Equals(ElementId? other) { if (ReferenceEquals(null, other)) return false; if (ReferenceEquals(this, other)) return true; if (other.GetType() != GetType()) return false; return Value == other.Value; } public override bool Equals(object? obj) { if (ReferenceEquals(null, obj)) return false; if (ReferenceEquals(this, obj)) return true; if (obj.GetType() != GetType()) return false; return Equals((ElementId)obj); } public override int GetHashCode() { return Value.GetHashCode(); } public static bool operator ==(ElementId? left, ElementId? right) { return Equals(left, right); } public static bool operator !=(ElementId? left, ElementId? right) { return !Equals(left, right); } public static ElementId FromString(string value) { if (value.StartsWith("L")) return new LeveId(ushort.Parse(value.Substring(1), CultureInfo.InvariantCulture)); else if (value.StartsWith("S")) return new SatisfactionSupplyNpcId(ushort.Parse(value.Substring(1), CultureInfo.InvariantCulture)); else return new QuestId(ushort.Parse(value, CultureInfo.InvariantCulture)); } public static bool TryFromString(string value, out ElementId? elementId) { try { elementId = FromString(value); return true; } catch (Exception) { elementId = null; return false; } } } public sealed class QuestId(ushort value) : ElementId(value) { public override string ToString() { return Value.ToString(CultureInfo.InvariantCulture); } } public sealed class LeveId(ushort value) : ElementId(value) { public override string ToString() { return "L" + Value.ToString(CultureInfo.InvariantCulture); } } public sealed class SatisfactionSupplyNpcId(ushort value) : ElementId(value) { public override string ToString() { return "S" + Value.ToString(CultureInfo.InvariantCulture); } }