tgstation/TerraGov-Marine-Corps

Vending Machine Icons and UI not updating based on Area's APC Power

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#4726 opened on Aug 22, 2020

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BugGood First issue

Description

Reproduction:

Unwrench a powered vendor, and move it to an area that is unpowered. The icon won't change to show it being unpowered, and you can still click and open up the vending menu and attempt to dispense items. The quantity of the item in the menu will decrease, but nothing will be vended.

Contributor guide

Tech stack
None
Domain
frontendbackend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
DM language basicsSS13 power systemsIcon update mechanics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
Investigate the vending machine icon update logic, likely in the vending machine DM file (e.g., code/game/machinery/vending.dm). The bug occurs when the area's APC power state changes but the icon does not update. Also check how other machines handle power loss to see if there's an existing pattern. The reproduction steps are clear: move a powered vendor to an unpowered area. The fix should ensure the icon updates and the interface is disabled when unpowered.