public void AddEntity(EcsEntity entity)
{
if (_length >= _entities.Length)
{
Array.Resize(ref _entities, 2 * _entities.Length);
}
entity.ArchetypeIndex = _length;
_entities[_length++] = entity;
_count++;
}
/// <summary>
/// Remove holes from the archetype
/// </summary>
private void RemoveHoles()
{
if (_freeIndex >= _length)
{
return;
}
int current = _freeIndex + 1;
while (current < _length)
{
while (current < _length && _entities[current] == null)
{
current++;
}
if (current >= _length)
{
continue;
}
EcsEntity entity = _entities[current];
entity.ArchetypeIndex = _freeIndex;
_entities[_freeIndex] = entity;
_entities[current] = null;
foreach (byte index in Indices)
{
_compPools[index].Replace(_freeIndex, current);
}
current++;
_freeIndex++;
}
_length = _freeIndex;
_freeIndex = int.MaxValue;
}
public void RemoveEntity(EcsEntity entity)
{
_entities[entity.ArchetypeIndex] = null;
foreach (byte index in Indices)
{
_compPools[index].Remove(entity.ArchetypeIndex);
}
_freeIndex = Math.Min(_freeIndex, entity.ArchetypeIndex);
_count--;
if (_freeIndex == _length - 1)
{
_length = _freeIndex;
_freeIndex = int.MaxValue;
}
else if (_length >= _count + _count)
{
RemoveHoles();
}
}