https://github.com/yurkth/sprator

A GUI application to generate random sprites and export as icon.
https://github.com/yurkth/sprator

opensiv3d pixel-art procedural procedural-generation procgen siv3d

Last synced: 2 days ago
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A GUI application to generate random sprites and export as icon.

• Host: GitHub
• URL: https://github.com/yurkth/sprator
• Owner: yurkth
• License: mit
• Created: 2020-01-16T19:01:42.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2021-10-20T18:45:49.000Z (over 3 years ago)
• Last Synced: 2025-04-25T17:16:56.511Z (2 days ago)
• Topics: opensiv3d, pixel-art, procedural, procedural-generation, procgen, siv3d
• Language: C++
• Homepage:
• Size: 32.6 MB
• Stars: 169
• Watchers: 7
• Forks: 5
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Sprator

Sprator is a GUI application to generate sprites using [cellular automaton](https://en.wikipedia.org/wiki/Cellular_automaton). Generated sprites can be exported as icons with specified color and size.

**I do not authorize the use of anything generated by this project for the selling of NFTs.**

![](https://user-images.githubusercontent.com/59264002/72552708-d2453b80-38da-11ea-8059-5fb624933144.png)

## Installation

You can [download](https://github.com/yurkth/sprator/releases) Sprator for Windows.

## Requirement

Sprator can be build using [Visual Studio 2019](https://visualstudio.microsoft.com/ja/vs/) and [OpenSiv3D v0.4.3](https://github.com/Siv3D/OpenSiv3D).

## Usage

Select the sprite and click "Save" to save the PNG.

Sprite color can be set with "Base Color" and background color can be set with "BG Color".

Right-click to change the number of cellular automaton steps.

## Theory

1. Generate 4x8 white noise.

   ![](https://user-images.githubusercontent.com/59264002/76070404-d38c0e00-5fd7-11ea-9ec2-674813c12490.png)

2. Change the state according to the following rules.

   - Any live cell with two or three neighbors survives.

   - Any dead cell with one or less live neighbors becomes a live cell.

   - All other live cells die in the next generation. Similarly, all other dead cells stay dead.

3. Repeat steps 2 several times.

   ![](https://user-images.githubusercontent.com/59264002/76137835-c8db8280-6084-11ea-80e8-68d436590d7b.png)

4. Flip and add an outline, complete!

   ![](https://user-images.githubusercontent.com/59264002/76070456-e56db100-5fd7-11ea-9fed-4c178bf0a756.png)

## Blog

[以前作ったアイコン生成ソフトをリメイクした - 屋根裏](https://yurkth.hateblo.jp/entry/sprite-generator)

## License

Sprator is licensed under the MIT license. See the [LICENSE](/LICENSE) for more information.