# Editing layout of subways/sewers?

**URL:** <https://discourse.cataclysmdda.org/t/editing-layout-of-subways-sewers/12228>\
**Category:** The Toolbox\
**Created:** [July 19, 2016, 2:57pm UTC](https://discourse.cataclysmdda.org/t/editing-layout-of-subways-sewers/12228 "2016-07-19T14:57:21Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Mad\_Jackal](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/mad_jackal/32/253_2.png) [@Mad\_Jackal](https://discourse.cataclysmdda.org/u/Mad_Jackal)\
**Post date:** [July 19, 2016, 2:57pm UTC](https://discourse.cataclysmdda.org/t/editing-layout-of-subways-sewers/12228/1 "2016-07-19T14:57:21Z")

</div>

There’s probably an obvious answer to this but I’ve searched the files up and down and I can’t for the life of me find where the JSON for either of these are located. I was expecting it to be under mapgen with everything else but apparently not, unless I totally overlooked it. Is it even possible at this point in time?

---

<div class="post-metadata">

**Author:** ![Coolthulhu](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/coolthulhu/32/2446_2.png) [@Coolthulhu](https://discourse.cataclysmdda.org/u/Coolthulhu)\
**Post date:** [July 19, 2016, 4:21pm UTC](https://discourse.cataclysmdda.org/t/editing-layout-of-subways-sewers/12228/2 "2016-07-19T16:21:43Z")

</div>

They’re hardcoded at the moment.

---

<div class="post-metadata">

**Author:** ![Mad\_Jackal](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/mad_jackal/32/253_2.png) [@Mad\_Jackal](https://discourse.cataclysmdda.org/u/Mad_Jackal)\
**Post date:** [July 21, 2016, 8:17pm UTC](https://discourse.cataclysmdda.org/t/editing-layout-of-subways-sewers/12228/3 "2016-07-21T20:17:01Z")

</div>

Ah, well thanks anyway.

---

<div class="post-metadata">

**Author:** ![pisskop](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/pisskop/32/1327_2.png) [@pisskop](https://discourse.cataclysmdda.org/u/pisskop)\
**Post date:** [July 21, 2016, 8:39pm UTC](https://discourse.cataclysmdda.org/t/editing-layout-of-subways-sewers/12228/4 "2016-07-21T20:39:26Z")

</div>

You can edit them, you cant view the hardcorded one though. But, if you make a json with the id of ‘sewers’ ala [this](https://github.com/CleverRaven/Cataclysm-DDA/blob/8f8ff5aac4a23e4d5f334145b5f329b09918b618/data/json/overmap_terrain.json), you can overwrite the defaults. idk if you can have both the default and your own intermixed via a weigh system though. havent tested that.

So if you really want to, you can make sewer models and have them spawn, but the effects might be less predictable.