How to use Gemini to build a Love2D prototype
MeowMiata used Gemini with Love2D through WSL, granted executable launch permission and let crash feedback drive Lua fixes in an unfinished defense prototype.
reddit.com
Original prompt
Shared by the source author. See source notes for context.
Add a small puddle of blood under the enemy
Reach people exploring AI agents
See placements →Evidence at a glance
Sourced account- Source author
- MeowMiata
- Original account
- Read the source ↗
- Published
- Source link checked
- Reported result
- An unfinished Love2D defense proof of concept gained sprites and animations while Gemini used executable errors to patch and relaunch it.
- Human involvement
- MeowMiata granted permission to launch the game, chose features and watched accelerated rounds to inspect behavior; the author explicitly called it unfinished.
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How the agent did it
- The author supplied a basic defense concept and existing sprite folders.
- Gemini added animation states and requested effects in Lua.
- With launch permission, it read executable errors, patched crashes and relaunched the prototype.
MeowMiata used Gemini CLI to turn a simple Love2D maze experiment into an unfinished tower-defense prototype. Development ran through Ubuntu in WSL while Love2D itself ran on Windows, combining a terminal agent with a native game executable.
The author began with basic shapes defending a rectangle, then requested PNG sprites and visible effects. Gemini assembled multi-part sprites and implemented idle, run and attack animation states from folder references and short feature prompts. The account credits existing sprite sources rather than implying the agent created every visual asset from nothing.
A follow-up explains the execution loop. MeowMiata granted Gemini permission to launch love2d.exe from WSL, allowing the agent to inspect returned errors. When the game crashed, Gemini could change the Lua code and relaunch without requiring a manual copy of the crash output. The author added faster simulation speeds to see whether rounds completed without issues.
The result was a playable-style proof of concept after an afternoon of experimentation, with the author explicitly stating it was unfinished and would not become a polished game. The useful mechanism is executable feedback during iteration, together with human feature selection and observed round behavior.
Prompt
Original prompt
Source: Reddit · MeowMiata
Frequently asked questions
How could Gemini see crashes?
It had permission to launch love2d.exe from WSL and inspect returned errors.
Why add faster simulation speeds?
The author used them to check whether rounds ran without issues.
Was this a finished game?
No. The author explicitly described an unfinished proof of concept.
More details
About this account
The author began with basic shapes defending a rectangle, then requested PNG sprites and visible effects. Gemini assembled multi-part sprites and implemented idle, run and attack animation states from folder references and short feature prompts. The account credits existing sprite sources rather than implying the agent created every visual asset from nothing.
Original Reddit account and author follow-up opened. Three-hour timing is self-reported. Author explicitly says unfinished proof of concept. No token-usage number is repeated because it is not independently substantiated. Original prompt excerpt retained from the source.
Credit: MeowMiata on Reddit
Source published
Added to Agents In Use
Source checked
Tools and topics
Gemini CLI · Love2D · Lua · WSL · Windows
Tower defense · Executable feedback
Editorial completeness: 100/100. Measures documented fields, not agent performance or verified outcomes.