Cataclysm-dda: Map memory only extends as far as the active window can "see".

[Dalenacio]

Describe the bug
Map memory only "remembers" what is on the active window. That means that if something is visible to the character but outside of the player's active window, it will not be remembered. This is affected among others by "z"ooming in and out, or by looking around (x).

To Reproduce

1. Go in game underground or at night
2. Use light of some sort to illuminate a large area (I used headlights while driving at night)
3. After turning it off and moving, you will only "remember" that which your active window saw

Expected behavior
I'd expect anything the character sees to be remembered, whether I had my active window over it, simply because map memory represents the character's memory, not the player's.

Screenshots

(Here I was driving at night with my headlights on. I quickly went to furthest zoom then back to "normal" zoom. I only remember up to what I saw when my zoom was very far.

Versions and configuration(please complete the following information):

• OS: Windows 10
• Game Version: 0.C-34412-gd37cc74
• Graphics version: Tiles
• Mods loaded: Disable NPC needs, Filthy Clothing, No Fungal Monsters, More Survival Tools

Additional context
This issue was reproduced by another user on the Discord.

[Josephos]

Can reproduce on:
OS: Linux 4.18.16
Game version: 0.C-34436-g003d91bd6b (Current git version)
Graphics version: Tiles
Mods: None

[Orange01gaming]

Wait a minute, my game hasn't had tile memory for over a week. I thought it was removed from the game. Is it now a world setting or something?

[kevingranade]

You hit {
This toggles map memory display.

This is a usability bug because a LOT of people have run afoul of it.