protected override void OnCreateManager()
{
m_BeginEntityCommandBufferSystem = World.GetOrCreateManager <BeginSimulationEntityCommandBufferSystem>();
m_lateSimulationGroup = World.GetOrCreateManager <LateSimulationSystemGroup>();
m_EndEntityCommandBufferSystem = World.GetOrCreateManager <EndSimulationEntityCommandBufferSystem>();
m_systemsToUpdate.Add(m_BeginEntityCommandBufferSystem);
m_systemsToUpdate.Add(m_lateSimulationGroup);
m_systemsToUpdate.Add(m_EndEntityCommandBufferSystem);
}
public override void SortSystemUpdateList()
{
// Extract list of systems to sort (excluding built-in systems that are inserted at fixed points)
var toSort = new List <ComponentSystemBase>(m_systemsToUpdate.Count);
BeginSimulationEntityCommandBufferSystem beginEcbSys = null;
LateSimulationSystemGroup lateSysGroup = null;
EndSimulationEntityCommandBufferSystem endEcbSys = null;
foreach (var s in m_systemsToUpdate)
{
if (s is BeginSimulationEntityCommandBufferSystem)
{
beginEcbSys = (BeginSimulationEntityCommandBufferSystem)s;
}
else if (s is LateSimulationSystemGroup)
{
lateSysGroup = (LateSimulationSystemGroup)s;
lateSysGroup.SortSystemUpdateList(); // not handled by base-class sort call below
}
else if (s is EndSimulationEntityCommandBufferSystem)
{
endEcbSys = (EndSimulationEntityCommandBufferSystem)s;
}
else
{
toSort.Add(s);
}
}
m_systemsToUpdate = toSort;
base.SortSystemUpdateList();
// Re-insert built-in systems to construct the final list
var finalSystemList = new List <ComponentSystemBase>(toSort.Count);
if (beginEcbSys != null)
{
finalSystemList.Add(beginEcbSys);
}
foreach (var s in m_systemsToUpdate)
{
finalSystemList.Add(s);
}
if (lateSysGroup != null)
{
finalSystemList.Add(lateSysGroup);
}
if (endEcbSys != null)
{
finalSystemList.Add(endEcbSys);
}
m_systemsToUpdate = finalSystemList;
}
