How to determine if system is derived from a custom base.

Unity Engine
,
1

I want to iterate over all systems in a group and if it is derived from a custom base, check public properties of that base.

What I have:

foreach(ComponentSystemGroup group in ecoSimSystemGroup.Systems) {
    foreach(ComponentSystemBase system in group.Systems) {
        // ??
    }
}

IsAssignableFrom and IsSubclassOf don’t seem to work.

2 
if (system is YourBaseSystem yourBaseSystem)
{
 
}

should work I think?

1 Like
3

I think I only had a logical error, group.Systems only returns systems that are immediate children and not all children like I expected. The system I’m looking for is deeper in the tree.

Is there an easy way to get all children or do I have to roll my own recursive solution?

4

World.DefaultGameObjectInjectionWorld.Systems works to get all systems, not sure why ComponentSystemGroup wouldn’t work the same way though.

5

The Systems property on the group is expected to only returns the systems that belongs to that group. A more reliable way to get the World’s systems is World.Systems (World is a property that points to the system’s world)