private EntityArchetype GetOrCreateArchetype(EntityManagerWrapper wrapper, Type archetypeType)
{
if (m_archetypes.ContainsKey(archetypeType))
{
return(m_archetypes[archetypeType]);
}
try
{
var instance = Activator.CreateInstance(archetypeType) as IArchetypeDescriptor;
if (instance == null)
{
throw new NotImplementedException($"Archetype descriptor {archetypeType} should implement {typeof(IArchetypeDescriptor)} interface and have an empty constructor");
}
var archetype = wrapper.CreateArchetype(instance.Components);
m_archetypes[archetypeType] = archetype;
return(archetype);
}
catch (Exception e)
{
throw new NotImplementedException($"Failed to instantiate archetype from archetype descriptor {archetypeType}", e);
}
}