/// <summary>
/// Registers a component to its system.
/// </summary>
/// <param name="system">Identifier of system to register to.</param>
/// <param name="id">Entity id.</param>
/// <param name="component">Component to register.</param>
public static void RegisterComponentToSystem(
ComponentSystemId system, int id, IComponent component
)
{
try
{
Systems[system].RegisterComponent(id, component);
}
catch (Exception e)
{
throw (e);
}
}
/// <summary>
/// Unregisters a component from its system.
/// </summary>
/// <param name="system">Identifier of system to register to.</param>
/// <param name="id">Entity id.</param>
/// <param name="component">Component to register.</param>
public static void UnregisterComponentToSystem(
ComponentSystemId system, int id, IComponent component
)
{
try
{
UnregisterComponents.Add(
new Tuple <int, ComponentSystemId>(id, system)
);
}
catch (Exception e)
{
throw (e);
}
}
/// <summary>
/// Gets a reference to the component with a given id.
/// </summary>
/// <param name="id">ComponentSystemId of component.</param>
/// <returns>Component or null.</returns>
public IComponent GetComponent(ComponentSystemId id)
{
if (Components == null)
{
throw (new NullReferenceException());
}
foreach (IComponent component in Components)
{
if (component.ComponentSystem == id)
{
return(component);
}
}
return(null);
}