Spray Not Working _hot_ -

Restores a core interaction mechanic, improves user retention by removing frustration, and provides better debugging tools for future issues.

| ID | Requirement | Priority | | :--- | :--- | :--- | | | The system must register the spray input command within 50ms of the key press. | High | | FR-02 | The system must check for valid spray locations (geometry collision) before instantiation. | High | | FR-03 | The system must verify the spray asset is loaded in memory; if not, it must trigger a background load rather than failing silently. | High | | FR-04 | The system must display a UI indicator (progress wheel or icon) if the spray is on a cooldown timer. | Medium | | FR-05 | The system must play a "click" sound effect when the input is received, even if the spray is on cooldown (audio feedback). | Low |

For a user or technician encountering a non-working spray, we propose the protocol: spray not working

49% of cases (Nozzle occlusion + User error) are recoverable within 15 seconds using only hot water or mechanical clearing.

The frustration of a spray bottle that refuses to work is a common household nuisance, often occurring just when you need it most. Whether it is a cleaning solution, a garden pesticide, or a hair styling product, the mechanical failure of a spray mechanism usually stems from a few specific, fixable issues. Common Causes of Failure Most spray bottle issues are mechanical or related to a blockage in the delivery system. The primary reasons for failure include: Nozzle Clogs | High | | FR-03 | The system

Users are reporting that the spray functionality (e.g., graffiti in a game, or a spray nozzle in a simulation) is unresponsive or fails to render effects despite the action being triggered. This feature aims to restore full functionality to the spray system, improve user feedback mechanisms, and introduce a re-initialization failsafe to handle edge cases.

A mixed-methods approach was employed:

A "non-working" spray is a black box failure. The user observes either no output, a weak stream, erratic sputtering, or complete lock-up. Without a structured diagnostic framework, users typically discard the unit. This paper seeks to demystify the internal failures and provide a replicable taxonomy of causes.