private void AssertValidID(Entity.Id id)
{
int index = (int)id.Index;
Debug.Assert(index < m_EntityComponentMasks.Count, "entity ID outside vector range");
Debug.Assert(m_EntityVersions[index] == id.Version, "attempt to access Entity via a stale entity id");
}
internal int Remove <C>(Entity.Id id) where C : class, IComponent, new()
{
int entityId = (int)id.Index;
int family = ComponentIndexer.GetFamily <C>();
ComponentMask mask = m_EntityComponentMasks[entityId];
mask[1 << family] = false;
m_EntityComponentMasks[entityId] = mask;
ComponentPool <C> pool = (ComponentPool <C>)m_ComponentPools[family];
pool.Destroy(entityId);
return(entityId);
}
internal C Component <C>(Entity.Id id) where C : class, IComponent, new()
{
AssertValidID(id);
int family = ComponentIndexer.GetFamily <C>();
if (family >= m_ComponentPools.Count)
{
return(default(C));
}
BaseComponentPool pool = m_ComponentPools[family];
if (pool == null || !m_EntityComponentMasks[(int)id.Index][1 << family])
{
return(default(C));
}
return(((ComponentPool <C>)pool).Get((int)id.Index));
}
internal int Assign <C>(Entity.Id id, C c) where C : class, IComponent, new()
{
AssertValidID(id);
int family = ComponentIndexer.GetFamily <C>();
int entityId = (int)id.Index;
ComponentMask mask = m_EntityComponentMasks[entityId];
Debug.Assert(!mask[1 << family]);
ComponentPool <C> pool = AccommodateComponent <C>();
pool.Put(c, entityId);
mask[1 << family] = true;
m_EntityComponentMasks[entityId] = mask;
return(entityId);
}
internal bool HasComponent <C>(Entity.Id id)
{
AssertValidID(id);
int family = ComponentIndexer.GetFamily <C>();
// We don't bother checking the component mask, as we return a nullptr anyway.
if (family >= m_ComponentPools.Count)
{
return(false);
}
BaseComponentPool pool = m_ComponentPools[family];
if (pool == null || !m_EntityComponentMasks[(int)id.Index][family])
{
return(false);
}
return(true);
}
public void Destroy(Entity.Id entity)
{
AssertValidID(entity);
int index = (int)entity.Index;
ComponentMask mask = m_EntityComponentMasks[index];
for (int i = 0; i < m_ComponentHelpers.Count; i++)
{
BaseComponentHelper helper = m_ComponentHelpers[i];
if (helper != null && mask[i])
{
helper.RemoveComponent(new Entity(this, entity));
}
}
m_EntityComponentMasks[index].Reset();
m_EntityVersions[index]++;
m_FreeList.Add((uint)index);
}
private Entity Get(Entity.Id id)
{
AssertValidID(id);
return(new Entity(this, id));
}
internal bool Valid(Entity.Id id)
{
return((int)id.Index < m_EntityVersions.Count && m_EntityVersions[(int)id.Index] == id.Version);
}
internal bool Matches(Entity.Id m_ID, ComponentMask mask)
{
return((m_EntityComponentMasks[(int)m_ID.Index] & mask) == mask);
}
internal ComponentMask ComponentMask(Entity.Id id)
{
AssertValidID(id);
return(m_EntityComponentMasks.ElementAt((int)id.Index));
}