/// <summary>
/// Converts the given set of entities to be part of the same scene.
/// </summary>
/// <param name="entityManager">The entity manager to operate on.</param>
/// <param name="entities">The set of entities to convert.</param>
/// <param name="guid">The unique identifier of the scene.</param>
/// <returns>A scene view of entities.</returns>
public static Scene Create(EntityManager entityManager, NativeArray <Entity> entities, Guid guid)
{
var sceneGuid = new SceneGuid {
Guid = guid
};
var sceneInstanceId = new SceneInstanceId {
InstanceId = s_NextSceneInstanceId++
};
for (var i = 0; i < entities.Length; i++)
{
var entity = entities[i];
if (!entityManager.HasComponent <SceneGuid>(entity))
{
entityManager.AddSharedComponentData(entities[i], sceneGuid);
}
else
{
entityManager.SetSharedComponentData(entities[i], sceneGuid);
}
if (!entityManager.HasComponent <SceneInstanceId>(entity))
{
entityManager.AddSharedComponentData(entities[i], sceneInstanceId);
}
else
{
entityManager.SetSharedComponentData(entities[i], sceneInstanceId);
}
}
return(new Scene(sceneGuid, sceneInstanceId));
}
static internal void UnloadAllSceneInstances(SceneGuid sceneGuid)
{
using (var query = World.Active.EntityManager.CreateEntityQuery(ComponentType.ReadOnly <SceneGuid>()))
{
query.SetFilter(sceneGuid);
World.Active.EntityManager.DestroyEntity(query);
}
}
public Scene(Guid sceneGuid, uint sceneInstanceId)
{
SceneGuid = new SceneGuid {
Guid = sceneGuid
};
SceneInstanceId = new SceneInstanceId {
InstanceId = sceneInstanceId
};
}
public static Scene Create(Guid guid)
{
var sceneGuid = new SceneGuid {
Guid = guid
};
var sceneInstanceId = new SceneInstanceId {
InstanceId = s_NextSceneInstanceId++
};
return(new Scene(sceneGuid, sceneInstanceId));
}
static internal Entity LoadSceneAsync(SceneGuid sceneGuid)
{
var em = World.Active.EntityManager;
var newScene = SceneManager.Create(sceneGuid.Guid);
var eScene = em.CreateEntity();
em.AddComponentData(eScene, new SceneData()
{
Scene = newScene, Status = SceneStatus.NotYetProcessed
});
em.AddComponentData(eScene, new RequestSceneLoaded());
return(eScene);
}
static internal void UnloadAllSceneInstances(World world, SceneGuid sceneGuid)
{
var em = world.EntityManager;
var ecb = new EntityCommandBuffer(Allocator.Temp);
using (var query = em.CreateEntityQuery(ComponentType.ReadOnly <SceneLoadRequest>(), ComponentType.ReadOnly <SceneGuid>()))
{
query.SetSharedComponentFilter(sceneGuid);
using (var issuedRequests = query.ToEntityArray(Allocator.Temp))
{
foreach (var entity in issuedRequests)
{
var request = em.GetComponentData <SceneLoadRequest>(entity);
// Disabled for web builds until https://github.com/emscripten-core/emscripten/issues/8234 is resolved
#if !UNITY_WEBGL
// Cancels the request if not already complete
request.SceneOpHandle.Dispose();
#endif
ecb.DestroyEntity(entity);
}
}
}
using (var query = em.CreateEntityQuery(new EntityQueryDesc()
{
All = new[] { ComponentType.ReadOnly <SceneGuid>() },
None = new[] { ComponentType.ReadOnly <SceneLoadRequest>() }
}))
{
query.SetSharedComponentFilter(sceneGuid);
ecb.DestroyEntity(query);
}
ecb.Playback(em);
ecb.Dispose();
}
public Scene(SceneGuid sceneGuid, SceneInstanceId sceneInstanceId)
{
SceneGuid = sceneGuid;
SceneInstanceId = sceneInstanceId;
}