I am wondering if there is a simple way of getting all derived classes from a class in blueprint. I am aware there is a C++ implementation of this, but surprised to find that there doesn’t appear to be a Blueprint node which can, from a class reference, get all derived classes.
This seems like it should be a simple/routine functionality. Any suggestions for a simple way to achieve this?
I thought about using an array to store them but this is a very clunky workaround for something that should be a simple operation. The other alternative I can find is to program a custom node, but again, why are we then recompiling the editor to do this basic operation
I’ve stumbled upon a node which actually makes this possible in blueprints though, Tags filtering is just not present in the default ARFilter node.
Here is a prototype implementation that will recursively fetch child blueprint classes until it doesn’t find any new ones anymore.
Just note the input parameter is by-ref. Other variables are locals.
Also note that it won’t fetch native classes, those are not assets. I’m not aware of any blueprint way to find native subclasses. C++ is much more fit for this.
