public static EntityId ECS_SYSTEM <T1>(World world, SystemAction <T1> systemImpl, SystemKind kind, SystemSignatureBuilder signatureBuilder) where T1 : unmanaged
{
SystemActionDelegate del = delegate(ref Rows rows)
{
var set1 = (T1 *)_ecs.column(ref rows, Heap.SizeOf <T1>(), 1);
systemImpl(ref rows, new Span <T1>(set1, (int)rows.count), ecs.get_delta_time(world));
};
// ensure our system doesnt get GCd and that our Component is registered
Caches.AddSystemAction(world, del);
var systemNamePtr = Caches.AddUnmanagedString(systemImpl.Target.GetType().FullName);
return(ecs.new_system(world, systemNamePtr, kind, signatureBuilder.Build(), del));
}
