[Question] Zombies damaged by digging

[Dante3214]

I'm a huge fan of World War Z by Max Brooks (the book not the damned movie) so I try to play a game with slow but abundant zombies with limited resources on a harder difficulty.

 

I'm currently working my way up to the iron age for the first time, and thinking about what my first base will be like.

 

I then realized it kinda bothers me that a zombie endlessly slamming itself into inanimate objects doesn't hurt it whatsoever.

 

Is it possible to create a mod where zombies take an extremely small amount of damage every time they hit a block? I mean it does make sense an undead horde could scratch their way through a concrete wall eventually.. but a lot of zombies would be ground into paste before that happened!

 

If it is possible I may try to learn to create it myself.

 

Thanks