/// <summary>
/// Adds an entity to the snapshot
/// </summary>
/// <remarks>
/// The entity ID is automatically assigned.
/// </remarks>
/// <param name="entityTemplate">The entity to be added to the snapshot.</param>
/// <returns>The entity ID assigned to the entity in the snapshot.</returns>
public EntityId AddEntity(EntityTemplate entityTemplate)
{
var entityId = new EntityId(entities.Count + 1);
entities[entityId] = entityTemplate.GetEntity();
return(entityId);
}
/// <summary>
/// Adds an entity to the snapshot
/// </summary>
/// <param name="entityId">The entity ID of the entity to be added to the snapshot</param>
/// <param name="entityTemplate">The entity to be added to the snapshot.</param>
/// <remarks>
/// You should obtain `entityId` using the `GetNextEntityId()` method, otherwise you could be given
/// invalid entity IDs.
/// </remarks>
public void AddEntity(EntityId entityId, EntityTemplate entityTemplate)
{
if (entities.ContainsKey(entityId))
{
throw new ArgumentException($"EntityId {entityId} already exists in the snapshot");
}
var entity = entityTemplate.GetEntity();
// This is a no-op if the entity already has persistence.
entity.Add(new ComponentData(PersistenceComponentId, SchemaComponentData.Create()));
entities[entityId] = entity;
}
/// <summary>
/// Adds an entity to the snapshot
/// </summary>
/// <remarks>
/// The entity ID is automatically assigned.
/// </remarks>
/// <param name="entityTemplate">The entity to be added to the snapshot.</param>
public void AddEntity(EntityTemplate entityTemplate)
{
entities[new EntityId(entities.Count + 1)] = entityTemplate.GetEntity();
}
/// <summary>
/// Adds an entity to the snapshot
/// </summary>
/// <param name="entityId">The entity ID of the entity to be added to the snapshot</param>
/// <param name="entityTemplate">The entity to be added to the snapshot.</param>
/// <remarks>
/// You should obtain `entityId` using the `GetNextEntityId()` method, otherwise you could be given
/// invalid entity IDs.
/// </remarks>
public void AddEntity(EntityId entityId, EntityTemplate entityTemplate)
{
entities[entityId] = entityTemplate.GetEntity();
}