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41 lines
1.8 KiB
41 lines
1.8 KiB
using System; |
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using gaemstone.Utility; |
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using static flecs_hub.flecs; |
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namespace gaemstone.ECS; |
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public unsafe class IdentifierRef |
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: IEquatable<IdentifierRef> |
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{ |
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public Universe Universe { get; } |
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public Identifier ID { get; } |
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public IdentifierFlags Flags => ID.Flags; |
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public bool IsPair => ID.IsPair; |
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public bool IsWildcard => ID.IsWildcard; |
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public bool IsValid => ecs_id_is_valid(Universe, ID); |
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public IdentifierRef(Universe universe, Identifier id) |
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{ Universe = universe; ID = id; } |
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public static IdentifierRef Combine(IdentifierFlags flags, IdentifierRef id) |
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=> new(id.Universe, Identifier.Combine(flags, id)); |
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public static IdentifierRef Pair(EntityRef relation, Entity target) |
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=> new(relation.Universe, Identifier.Pair(relation, target)); |
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public static IdentifierRef Pair(Entity relation, EntityRef target) |
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=> new(target.Universe, Identifier.Pair(relation, target)); |
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public (EntityRef Relation, EntityRef Target)? AsPair() |
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=> IsPair ? (Universe.LookupOrThrow(ID.RelationUnsafe), Universe.LookupOrThrow(ID.TargetUnsafe)) : null; |
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public bool Equals(IdentifierRef? other) => (other is not null) && (Universe == other.Universe) && (ID == other.ID); |
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public override bool Equals(object? obj) => Equals(obj as IdentifierRef); |
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public override int GetHashCode() => HashCode.Combine(Universe, ID); |
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public override string? ToString() => ecs_id_str(Universe, this).FlecsToStringAndFree()!; |
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public static bool operator ==(IdentifierRef? left, IdentifierRef? right) => ReferenceEquals(left, right) || (left?.Equals(right) ?? false); |
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public static bool operator !=(IdentifierRef? left, IdentifierRef? right) => !(left == right); |
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public static implicit operator Identifier(IdentifierRef i) => i.ID; |
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public static implicit operator ecs_id_t(IdentifierRef i) => i.ID.Value; |
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}
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