Unable to push past, shoot, or melee zombie on ramp

[ameliasthompson]

Describe the bug

I've got a zombie stuck on a ramp, with me stuck at the bottom of the ramp. This happened when I attempted to melee attack the zombie from the upper z-level, and instead used the ramp to go down. The zombie does not seem to move until I debug teleport up a z-level.

When standing adjacent to the ramp, the zombie is not visible on either the current or upper z-level. Moving into the ramp flashes the zombie sprite and does not pass a turn. Attempting to melee says there's nothing to melee.

When standing one or more tiles away from the ramp, the zombie is visible on the upper z-level, standing directly on the ramp tile. Attempting to fire a gun shows proper aiming calculations, but even with a 100% hit rate the bullet doesn't do anything. It's possible it's hitting terrain (such as the ceiling above me) or something. Hitting tab to attack with a reach weapon (pipe spear) when one tile away doesn't work either.

As far as I'm aware, I am permanently stuck in the basement of a potter's cottage.

Attach save file

Greenhorn-trimmed.tar.gz

Steps to reproduce

1. Stand next to the top of the ramp.
2. Spawn an enemy at the top of a ramp.
3. Move into the enemy to perform a melee attack.

Expected behavior

I initially expected to melee attack the zombie rather than take the ramp. Following that I expected to either be able to take the up ramp or melee attack the zombie.

Screenshots

No response

Versions and configuration

• OS: Linux
  • OS Version: Distributor ID: Linuxmint; Description: Linux Mint 21.3; Release: 21.3; Codename: virginia;
• Game Version: 187cf76 [64-bit]
• Graphics Version: Tiles
• Game Language: System language []
• Mods loaded: [
  Dark Days Ahead [dda],
  Portal Storms Ignore NPCs [personal_portal_storms],
  Disable NPC Needs [no_npc_food]
  ]

Additional context

No response

[PatrikLundell]

I've encountered the same problem in the past. Ended up debug teleporting past the monster, but was too lazy to write a report.

[PatrikLundell]

/Confirmed

• I tried to walk into the monster. Didn't work.
• I tried to shoot at the monster tile. Didn't hit anything emptying pistol and firing quite a few shots from one of the rifles, including a number of auto salvos.
• Debug spawned homemade halfpike and aimed at tile north and above (after moving adjacent to the ramp). Hit after a few swings, and it died, so it seems possible to get out if you just so happen to have a reach weapon at hand (which my characters don't have).

If I remember correctly, I've also gotten into this situation with a companion blocking me at one side, and dragged furniture at the other and being unable to push either out of the way. I think the furniture was blocked by items at the floor.