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33 lines
1.1 KiB
33 lines
1.1 KiB
using System; |
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using System.Collections; |
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using System.Collections.Generic; |
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using static flecs_hub.flecs; |
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namespace gaemstone.ECS; |
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public unsafe class Query |
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: IEnumerable<Iterator> |
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, IDisposable |
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{ |
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public Universe Universe { get; } |
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public ecs_query_t* Handle { get; } |
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private Query(Universe universe, ecs_query_t* handle) |
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{ Universe = universe; Handle = handle; } |
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public Query(Universe universe, ecs_query_desc_t desc) |
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: this(universe, ecs_query_init(universe, &desc)) { } |
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public Query(Universe universe, ecs_filter_desc_t desc) |
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: this(universe, new ecs_query_desc_t { filter = desc }) { } |
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public Query(Universe universe, string expression) |
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: this(universe, new ecs_filter_desc_t { expr = expression }) { } |
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~Query() => Dispose(); |
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public void Dispose() { ecs_query_fini(this); GC.SuppressFinalize(this); } |
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public Iterator Iter() => new(Universe, IteratorType.Query, ecs_query_iter(Universe, this)); |
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public IEnumerator<Iterator> GetEnumerator() => Iter().GetEnumerator(); |
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IEnumerator IEnumerable.GetEnumerator() => GetEnumerator(); |
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public static implicit operator ecs_query_t*(Query q) => q.Handle; |
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}
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