Setting up and altering OBB triggers at runtime

[pellevoice]

In older Source-titles we've been able to dynamically alter trigger-size at runtime (mins/maxs rectangle), which has been incredibly useful.
In Source1 (CS:S and CS:GO for example), you could do it by EntFire:

• AddOutput > solid 3
• AddOutput > mins -32 -32 -32
• AddOutput > maxs 32 32 32
  Or its VScript-equivalent:
• .SetSolid(3);
• .SetSize(Vector(-32,-32,-32),Vector(32,32,32));

solid 3 allows the trigger to be rotated (Oriented Bounding Box)
This works for all trigger_ classes, such as trigger_multiple, trigger_hurt, etc.

It would be great to have this as an option in CS2 as well. Potentially something along the lines of:

const trigger = Instance.FindEntityByName("my_trigger");
trigger.SetSolid(3); //OBB
trigger.SetSize(Vector(-32,-32,-32),Vector(32,32,32));

Here's an example use-case, having the trigger (red outline) be resized dynamically to prevent going through world-geometry. While using it to hit/damage-players:

dynamic_trigger.mp4

Map-compiled trigger meshes just isn't viable for things like these.

[pellevoice]

I'd like to extend on this that it was also possible to run .SetSolid() and .SetSize() on solid entities such as prop_physics in source1, which would be able to take damage from bullets and fire its OnHealthChanged output.

Even though moving physics didn't really work with this solid-mode, it was still very useful to generate invisible OBB hitboxes of arbitrary size, keeping it motion-disabled.