Strange issue with counterattacks causing massive damage to player's arm

[Kelenius]

Describe the bug

Being attacked by a monster while wielding a large item and counterattacking breaks your arm.

Steps To Reproduce

Steps to reproduce the behavior:

1. Be a survivor with high skills, capable of counterattacking.
2. Hold a large item (I encountered this issue with rotary evapourator).
3. Stand next to a monster (giant cockroach in my case) and get attacked until you counter.

Expected behavior

?????

Screenshots

(It doesn't happen every time, to these are different games)

Versions and configuration

• OS: Windows
  • OS Version: 10.0 1903
• Game Version: 0.D-10735-gd136e46 [64-bit]
• Graphics Version: Tiles
• Mods loaded: [
  Dark Days Ahead [dda],
  Vehicle Additions Pack [blazemod],
  Folding Parts pack [deoxymod],
  No Acid Zombies [No_Acid_Zombies],
  No Fungal Monsters [No_Fungi],
  Prevent Zombie Revivication [no_reviving_zombies]
  ]

Additional context

Franklinville.zip

I suspect that counterattacks somehow multiply damage by the time it takes to perform it, and because huge item = lots of time spent attacking, that translates into massive damage somehow, because I'm also dealing 300+ damage to the roach with one attack, way over what I should be capable of. Also, the messages say that the rotary evapourator shatters, which doesn't happen.

[kevingranade]

This is getting triggered by the item "shattering" since it's made of glass, and the damage scales with item volume.

Cataclysm-DDA/src/melee.cpp

Line 1776 in 477661c

if( is_player() ) {

There is a secondary issue in that counterattacks shouldn't be triggering with such a large (and more importantly, slow) item.

[Soup-de-Loop]

This was an interesting one, I actually had it happen recently when trying to carry a rotary evapourator out of a Research Lab. Z got too close, had far more pain than I thought from such a small encounter and badaboom, right arm completely mangled and requiring a splint. Good to know why, now.