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48 行
2.3 KiB
48 行
2.3 KiB
namespace Unity.Entities
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{
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public sealed unsafe partial class EntityManager
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{
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// ----------------------------------------------------------------------------------------------------------
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// PUBLIC
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// ----------------------------------------------------------------------------------------------------------
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/// <summary>
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/// Begins an exclusive entity transaction, which allows you to make structural changes inside a Job.
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/// </summary>
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/// <remarks>
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/// <see cref="ExclusiveEntityTransaction"/> allows you to create & destroy entities from a job. The purpose is
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/// to enable procedural generation scenarios where instantiation on big scale must happen on jobs. As the
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/// name implies it is exclusive to any other access to the EntityManager.
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///
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/// An exclusive entity transaction should be used on a manually created <see cref="World"/> that acts as a
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/// staging area to construct and setup entities.
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///
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/// After the job has completed you can end the transaction and use
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/// <see cref="MoveEntitiesFrom(EntityManager)"/> to move the entities to an active <see cref="World"/>.
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/// </remarks>
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/// <returns>A transaction object that provides an functions for making structural changes.</returns>
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public ExclusiveEntityTransaction BeginExclusiveEntityTransaction()
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{
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ComponentJobSafetyManager->BeginExclusiveTransaction();
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#if ENABLE_UNITY_COLLECTIONS_CHECKS
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m_ExclusiveEntityTransaction.SetAtomicSafetyHandle(ComponentJobSafetyManager->ExclusiveTransactionSafety);
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#endif
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return m_ExclusiveEntityTransaction;
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}
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/// <summary>
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/// Ends an exclusive entity transaction.
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/// </summary>
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/// <seealso cref="ExclusiveEntityTransaction"/>
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/// <seealso cref="BeginExclusiveEntityTransaction()"/>
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public void EndExclusiveEntityTransaction()
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{
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ComponentJobSafetyManager->EndExclusiveTransaction();
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}
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// ----------------------------------------------------------------------------------------------------------
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// INTERNAL
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// ----------------------------------------------------------------------------------------------------------
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}
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}
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