Cataclysm-dda: Targeting enemies on different z-levels doesn't seem right.

[HeadstrongCatgirl]

Describe the bug
Sometimes my aim doesn't start where my character is, but seems drawn to a certain area and I can't shoot further than tiles adjacent to my character. Two different bows in perfect and near-perfect condition with the same behaviour. Aiming with a mouse seems to work in the same circumstances and with the same target.

To Reproduce
Steps to reproduce the behavior:

1. Load the save.
2. Try to aim and shoot, walk around a bit,
3. Sometimes aim doesn't work.

Expected behavior
I expect my arrows to move in the general direction of my aim and not fall around my character.

Screenshots
If applicable, add screenshots to help explain your problem.

Versions and configuration(please complete the following information):

• OS: Debian stable
• Game Version: 0.D-2247-g97d7e5b888
• Graphics version: curses
• Mods loaded: [
  "dda",
  "no_npc_food",
  "filthy_morale",
  "novitamins",
  "craftgp",
  "safeautodoc",
  "brightnights",
  "generic_guns",
  "makeshift",
  "More_Survival_Tools",
  "crazy_cataclysm"
  ]

Additional context
Add any other context about the problem here.
E.g. A link to a savegame that allows the issue to be reproduced.
World folder: https://drive.google.com/open?id=1vkixPhmkiVCesc0SW7vBBKQSt-LhQh9K



Aiming with a mouse:

[darktoes]

You don't appear to have actually posted the save?

[HeadstrongCatgirl]

I intended to, but forgot.

[darktoes]

As far as I can tell, it seems to be registering enemies with your electroreceptor mutation, but they're on a different level. Shooting at enemies on a higher or lower level causes you to shoot straight into the floor/ceiling. Your first two screenshots list "Elevation: -1" so I assume that's what's going on. You could turn off snap to target in the settings, or debug remove the electroreceptor mutation for a quickfix.

Otherwise, I'm not 100% sure what the code fix for this would be.

[HeadstrongCatgirl]

Thank you. Did not notice the elevation, but I was pretty sure it had to do with z-levels. Still it's not obvious and might be very confusing to some players.

[HeadstrongCatgirl]

Snap to target changes the view point, which is not what I want.
By default < and > cycled through targets, but now I can see much more. I probably shouldn't be able to see every z-level as if I'm standing there though.