NPC attacks player through Z-level

[Xenotrenium]

Describe the bug

NPC's can attack the player through the floor.

Steps To Reproduce

Find Outpost, or possible other good testing location
Locate Hostile NPCs above you
Move under the NPC's so that you are horizontally adjacent

Expected behavior

Attacks through the floor should not be possible

Screenshots

If applicable, add screenshots to help explain your problem.

-> teleporting one z-level straight up

Versions and configuration

• OS: Windows
  • OS Version: 10.0 1903
• Game Version: 0.D-10554-g418fa9c [64-bit]
• Graphics Version: Tiles
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food],
  Medieval and Historic Classes and Shields [Medieval_Stuff],
  Makeshift Items Mod [makeshift],
  Alternative Map Key [alt_map_key],
  Hydroponics [hydroponics],
  More Locations [more_locations],
  Fuji's More Buildings [FujiStruct],
  Urban Development [Urban_Development],
  Folding Parts pack [deoxymod],
  Vehicle Additions Pack [blazemod],
  Roadheader and other mining vehicles [Heavy miners],
  Tanks and Other Vehicles [Tanks],
  Bionic Slots [cbm_slots],
  Fuji's Military Profession Pack [fuji_mpp],
  Stats Through Skills [StatsThroughSkills]
  ]

#Additional Notes
If standing on top of a staircase with zombies under you, you can hold TAB to attack them - might be related.

EDITS:
Additional Information: Z-Level on, 3D vision on (1lvl limit)
NOT tested if possible when OVER NPCs
NOT tested if REVERSE is possible when OVER NPCs

[esotericist]

Just for the sake of alleviating confusion: there are some known issues with 3d vision that cause things like this. There's work in progress to resolve that, but they're not going to happen before 0.E

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[stale]

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