Lightning strike area-effect destroys item frames, paintings, and armor stands

Further testing shows that this also affects paintings as well.

I've included a couple of screenshots that visually illustrate what the area effect of lightning covers. Red represents the block that the lightning strikes, the orange shows what is within the effect of the lightning(inclusive of the area occupied by the orange blocks themselves), the green shows area outside the effects, and the blue represents a cutaway view of the blocks making up a home.

Something I've also noticed is that in addition to destroying item frames and paintings within the orange area, lightning can also injure or kill mobs that are within a structure as well.

I believe this is working as intended.

Relates to MC-862.

Updated to include that armor stands are also destroyed by lightning strikes.

I'm not sure about that. While paintings and item frames are technically entities, they are designed to function a lot like blocks.

Lightning strike destroying said entities is definitely WAI. Not sure about the block penetrating damage part.

Paintings, frames and armor stands are indeed entities, but as construction blocks, they are not taking damages anymore from lightning.

Wall penetration is WAI

Good to hear. Seems like the best solution, as I'm not even sure how you'd go about determining blocks providing protection anyway, considering all the possibilities like a pillar between the strike point, or something under an overhang that gets hit, but that has no walls, etc.

You usually do it via raytracing between the impact point and the list of all entities BBs. It is possible, but it is slightly more expensive and doesn't really reflect the behaviour of a shockwave properly.