/// <summary>
/// Initializes the specified entity, adding components matching the
/// passed blueprint and initializing these with the data stored in
/// the blueprint and the specified configuration. Configuration
/// data is preferred over blueprint data.
/// </summary>
/// <param name="entityId">Id of the entity to initialize.</param>
/// <param name="blueprint"> Blueprint describing the entity to create. </param>
/// <param name="configuration"> Data for initializing the entity. </param>
/// <param name="additionalComponents">Components to add to the entity, in addition to the ones specified by the blueprint.</param>
public void InitEntity(
int entityId,
Blueprint blueprint,
IAttributeTable configuration,
IEnumerable <Type> additionalComponents)
{
if (blueprint == null)
{
throw new ArgumentNullException("blueprint", "Blueprint is null.");
}
// Setup attribute table.
HierarchicalAttributeTable attributeTable = new HierarchicalAttributeTable();
if (configuration != null)
{
attributeTable.AddParent(configuration);
}
// Add attribute tables of all ancestors.
IAttributeTable blueprintAttributeTable = blueprint.GetAttributeTable();
if (blueprintAttributeTable != null)
{
attributeTable.AddParent(blueprintAttributeTable);
}
// Build list of components to add.
IEnumerable <Type> blueprintComponentTypes = blueprint.GetAllComponentTypes();
IEnumerable <Type> componentTypes = additionalComponents != null
? blueprintComponentTypes.Union(additionalComponents)
: blueprintComponentTypes;
// Add components.
foreach (Type type in componentTypes)
{
this.AddComponent(type, entityId, attributeTable);
}
// Raise event.
this.OnEntityInitialized(entityId);
}
/// <summary>
/// Returns the final attribute table to use for entity creation.
/// Considers the attribute tables of the ancestors of this blueprint if there are any.
/// </summary>
/// <returns>Final attribute table to use for entity creation.</returns>
public IAttributeTable GetAttributeTable()
{
if (this.Parent == null)
{
return(this.AttributeTable);
}
HierarchicalAttributeTable attributeTable = new HierarchicalAttributeTable(this.AttributeTable);
Blueprint ancestor = this.Parent;
while (ancestor != null)
{
if (ancestor.AttributeTable != null)
{
attributeTable.AddParent(ancestor.AttributeTable);
}
ancestor = ancestor.Parent;
}
return(attributeTable);
}
