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Game.AreaTypeData

Assembly: Assembly-CSharp (typical game assembly; the concrete assembly may vary by build)
Namespace: Game.Prefabs

Type: struct

Base: System.ValueType
Implements: Unity.Entities.IComponentData, Unity.Entities.IQueryTypeParameter

Summary:
A marker/component-type with no managed fields used to tag entities or prefabs that represent an "area type". The type is laid out with a fixed native size of 1 byte via [StructLayout(LayoutKind.Sequential, Size = 1)] to ensure a non-zero native footprint for ECS and native interop. This struct acts as a tag component (no payload) for filtering and archetype separation in Unity's Entities (DOTS) systems.

Fields

This struct declares no fields. It is an empty/tag component; memory layout is explicitly set to 1 byte by the StructLayout attribute to avoid zero-size issues in native interop.

Properties

This type defines no properties.

Constructors

  • public AreaTypeData() (implicit default)
    The struct has the implicit parameterless constructor. Because the type is empty, you typically construct it using new AreaTypeData() when adding it as a component, or simply use its type in CreateEntity/CreateArchetype calls.

Methods

This type defines no methods.

Usage Example

// Add the tag to a new entity
var entityManager = World.DefaultGameObjectInjectionWorld.EntityManager;
Entity entity = entityManager.CreateEntity(typeof(Game.Prefabs.AreaTypeData));

// Or add the tag to an existing entity
entityManager.AddComponent<Game.Prefabs.AreaTypeData>(existingEntity);

// Query for tagged entities
EntityQuery areaTypeQuery = entityManager.CreateEntityQuery(ComponentType.ReadOnly<Game.Prefabs.AreaTypeData>());

// Use in a SystemBase query
public partial class ExampleSystem : SystemBase
{
    protected override void OnUpdate()
    {
        Entities
            .WithAll<Game.Prefabs.AreaTypeData>()
            .ForEach((Entity e) =>
            {
                // Handle entities that are tagged as AreaType
            }).Schedule();
    }
}

Notes: - Because this struct implements IComponentData, it is intended for use with Unity.Entities (DOTS) workflows. - The [StructLayout(LayoutKind.Sequential, Size = 1)] attribute ensures the type has a non-zero native size which can be important for ECS memory layout and native interop.