EntityId

Remarks

An Entity is a slot and a version in one world, so it cannot be what a file says. Loading the same scene twice, or entering and leaving play mode, reissues every handle — a file that stored them would name whatever landed in those slots. This is the identity that survives, and it is what a reference from one entity to another, a prefab override and a multi-user session all have to be expressed in.

⚠ A GUID rather than a number counted up from one, and the reason is git. A local counter gives a readable diff and one unreadable failure: two branches each add an entity, each picks the next id, and the merge takes both hunks cleanly — leaving a file with two entities claiming one id, which no tool anywhere reports. A GUID cannot collide, and the noisier diff is the same trade doc 08 already made for assets.

Written as thirty-two lowercase hex digits with no dashes, exactly as AssetId is, so the two read as the same kind of thing in a file.

Fields and properties (4)

• public Guid Value

  The raw identity.

• public const int TextLength

  Number of characters ToString writes.

• public static EntityId None

  No entity.

• public bool IsNone

  Whether this names nothing.

Methods (10)

• public EntityId(Guid Value)

  Identity of one entity inside a scene file, independent of any world's handles.

• public static EntityId New()

  Mints a fresh identity.

• public override string ToString()

  Returns the fully qualified type name of this instance.

• public string ToString(string? format, IFormatProvider? formatProvider)

  Formats the value of the current instance using the specified format.

• public bool TryFormat(Span<char> destination, out int charsWritten, ReadOnlySpan<char> format, IFormatProvider? provider)

  Tries to format the value of the current instance into the provided span of characters.

• public static EntityId Parse(string s, IFormatProvider? provider = null)

  Parses a string into a value.

• public static EntityId Parse(ReadOnlySpan<char> s, IFormatProvider? provider = null)

  Parses a span of characters into a value.

• public static bool TryParse(string? s, IFormatProvider? provider, out EntityId result)

  Tries to parse a string into a value.

• public static bool TryParse(ReadOnlySpan<char> s, IFormatProvider? provider, out EntityId result)

  Tries to parse a span of characters into a value.

• public static bool TryParse(string? s, out EntityId result)

Used by (16)

• AuthoringTestsVixen.Editor.AssetEditors.Tests
• EntityLifetimeTestsVixen.Editor.SceneView.Tests
• ItemVixen.Editor.SceneView
• PrefabVixen.Editor.AssetEditors
• PrefabInstanceTestsVixen.Editor.AssetEditors.Tests
• PrefabLinkVixen.Editor.AssetEditors
• SceneCompilerVixen.Editor.Assets
• SceneDocumentVixen.Editor.SceneView
• SceneEntityDataVixen.Editor.Core
• SceneScalarsVixen.Editor.Core
• SceneSerializerVixen.Editor.SceneView
• SceneSerializerTestsVixen.Editor.SceneView.Tests
• SequenceTrackDataVixen.Editor.AssetEditors
• SubtreeSnapshotVixen.Editor.SceneView
• TypeRegistrationVixen.Editor.Core
• Vixen_Editor_AssetEditors_Sequencing_SequenceTrackDataSerializerVixen.Editor.AssetEditors