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61 lines
2.5 KiB
61 lines
2.5 KiB
using System; |
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using gaemstone.ECS.Utility; |
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using static flecs_hub.flecs; |
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namespace gaemstone.ECS; |
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public unsafe class IdRef |
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: IEquatable<IdRef> |
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{ |
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public World World { get; } |
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public Id Id { get; } |
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public IdFlags 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(World, this); |
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public bool IsInUse => ecs_id_in_use(World, this); |
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public int Count => ecs_count_id(World, this); |
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public IdRef(World world, Id id) |
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{ World = world; Id = id; } |
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public static IdRef Combine(IdFlags flags, IdRef id) |
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=> new(id.World, Id.Combine(flags, id)); |
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public static IdRef Pair(World world, Entity relation, Entity target) |
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=> new(world, Id.Pair(relation, target)); |
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public static IdRef Pair(Entity relation, EntityRef target) |
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=> Pair(target.World, relation, target); |
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public static IdRef Pair(EntityRef relation, Entity target) |
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=> Pair(relation.World, relation, target); |
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public static IdRef Pair(EntityRef relation, EntityRef target) |
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=> Pair(relation.World, relation, target); |
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public static IdRef Pair<TRelation>(World world, Entity target) |
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=> Pair(world, world.LookupByTypeOrThrow<TRelation>(), target); |
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public static IdRef Pair<TRelation>(EntityRef target) |
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=> Pair(target.World.LookupByTypeOrThrow<TRelation>(), target); |
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public static IdRef Pair<TRelation, TTarget>(World world) |
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=> Pair(world, world.LookupByTypeOrThrow<TRelation>(), |
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world.LookupByTypeOrThrow<TTarget>()); |
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public EntityRef? AsEntity() |
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=> (Flags == default) ? World.LookupAlive(new Entity(new() { Data = Id })) : null; |
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public (EntityRef Relation, EntityRef Target)? AsPair() |
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=> IsPair && (World.LookupAlive(Id.RelationUnsafe) is EntityRef relation) && |
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(World.LookupAlive(Id.TargetUnsafe ) is EntityRef target ) |
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? (relation, target) : null; |
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public bool Equals(IdRef? other) => (other is not null) && (World == other.World) && (Id == other.Id); |
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public override bool Equals(object? obj) => Equals(obj as IdRef); |
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public override int GetHashCode() => HashCode.Combine(World, Id); |
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public override string? ToString() => ecs_id_str(World, this).FlecsToStringAndFree()!; |
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public static bool operator ==(IdRef? left, IdRef? right) => ReferenceEquals(left, right) || (left?.Equals(right) ?? false); |
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public static bool operator !=(IdRef? left, IdRef? right) => !(left == right); |
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public static implicit operator Id(IdRef i) => i.Id; |
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public static implicit operator ecs_id_t(IdRef i) => i.Id.Value; |
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}
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