public void IterateThroughArchetype()
{
Entity[] entities = new Entity[3];
entities[0] = entityManager.CreateEntity(archetype);
entities[1] = entityManager.CreateEntity(archetype);
entities[2] = entityManager.CreateEntity(archetype);
entityManager.GetComponent <ComponentA>(entities[0]).a = 0;
entityManager.GetComponent <ComponentA>(entities[1]).a = 1;
entityManager.GetComponent <ComponentA>(entities[2]).a = 2;
entityManager.GetComponent <ComponentB>(entities[0]).x = 2;
entityManager.GetComponent <ComponentB>(entities[1]).x = 1;
entityManager.GetComponent <ComponentB>(entities[2]).x = 0;
var iterator = entityManager.ArchetypeIterator(archetype);
foreach (var itr in iterator)
{
var accessComponentA = itr.DataAccess <ComponentA>();
var accessComponentB = itr.DataAccess <ComponentB>();
for (int i = 0; i < itr.Length; ++i)
{
Assert.AreEqual(entities[i], itr[i]);
Assert.AreEqual(i, accessComponentA[i].a);
Assert.AreEqual(2 - i, accessComponentB[i].x);
}
}
}
