# Modify movement speed through .json on an item?

**URL:** <https://discourse.cataclysmdda.org/t/modify-movement-speed-through-json-on-an-item/11596>\
**Category:** The Toolbox\
**Created:** [March 21, 2016, 6:05pm UTC](https://discourse.cataclysmdda.org/t/modify-movement-speed-through-json-on-an-item/11596 "2016-03-21T18:05:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![secretfire](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/secretfire/32/2984_2.png) [@secretfire](https://discourse.cataclysmdda.org/u/secretfire)\
**Post date:** [March 21, 2016, 6:05pm UTC](https://discourse.cataclysmdda.org/t/modify-movement-speed-through-json-on-an-item/11596/1 "2016-03-21T18:05:23Z")

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This is based off of a silly whim I had while swimming through a river to escape zombies.

Question. I was thinking of making a neoprene mermaid tail item, that would slow you to a (literal) crawl on land, but be pretty awesome underwater.

This was inspired by those silicon mermaid tails ala [http://static1.squarespace.com/static/552d30d2e4b0688933e4ef04/t/564c9356e4b008db72f8ff52/1447859036883/dragon+tail+1+copy±+mirror.jpg?format=1500w](http://static1.squarespace.com/static/552d30d2e4b0688933e4ef04/t/564c9356e4b008db72f8ff52/1447859036883/dragon+tail+1+copy+-+mirror.jpg?format=1500w)

I was looking through the .json and at the wiki, and this is the closest current thing I found:

{  
“type” : “ARMOR”,  
“id” : “swim\_fins”,  
“name” : “pair of swim fins”,  
“name\_plural” : “pairs of swim fins”,  
“weight” : 680,  
“color” : “dark\_gray”,  
“covers” : [“FEET”],  
“symbol” : “[”,  
“description” : “A pair of rubber flippers worn on the feet which improve swimming speed while greatly impeding the wearer’s ability to walk.”,  
“price” : 2000,  
“material” : [“plastic”, “null”],  
“volume” : 5,  
“warmth” : 5,  
“encumbrance” : 15,  
“flags” : [“VARSIZE”, “WATER\_FRIENDLY”],  
“coverage” : 85,  
“material\_thickness” : 1  
},

But contrary to the description, it doesn’t actually seem to do anything to help one swim - it just has the water\_friendly tag, which AFAIK … just modifies morale. Its not even terribly encumbring.

Is there any way, through .json, to actually add movement speed while underwater? I could then add in some godawful feet/leg encumbrance to signify that one is basically immobile on land when wearing one.

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**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:** [March 22, 2016, 5:45am UTC](https://discourse.cataclysmdda.org/t/modify-movement-speed-through-json-on-an-item/11596/2 "2016-03-22T05:45:19Z")

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> [@secretfire](#):
>
> Is there any way, through .json, to actually add movement speed while underwater? I could then add in some godawful feet/leg encumbrance to signify that one is basically immobile on land when wearing one.

Currently no, fins’ effect is hardcoded by ID.