(C)opyright D.Pfeifle 2010-2026
RecursiveRoast is a Java application that generates and displays fractal graphics based on L-Systems. L-Systems are a type of formal grammar that can be used to model the development of plants, fractals, and other complex structures.
You can find more information about L-Systems on Wikipedia.
- Java Development Kit (JDK) 17 or higher
./gradlew runThe application will display a window with a graphical representation of an L-System. You can load different L-System files, adjust the recursion depth, and view the resulting fractals.
./gradlew build📖 For detailed build and release instructions, see BUILD_AND_RELEASE.md
The L-System rules are defined in text files with a simple syntax.
angle = 36
R = F
0 : BASE = R++R++R++R++R
1 : R = R++R++R|R-R++R
- angle: Defines the turning angle in degrees
- Constants: Define a constant as a sequence of commands (e.g.,
R = F) - Recursion level 0: Defines the starting pattern (axiom)
- Recursion level n: Defines the replacement rules for each recursion level
| Command | Description |
|---|---|
F |
Draw a line forward |
f |
Move forward without drawing |
+ |
Turn right by the defined angle |
- |
Turn left by the defined angle |
| ` | ` |
[ |
Push current position to stack |
] |
Pop position from stack |
The project includes several pre-defined L-Systems in the resources:
- Koch Snowflake - Classic fractal curve
- Sierpinski Triangle - Triangular fractal pattern
- Dragon Curve - Space-filling curve
- Gosper Curve - Hexagonal space-filling curve
- Fern - Plant-like fractal structures
- And many more...
Pre-built releases are available on the Releases page.
Download a JAR file and run it with:
java -jar recursiveroast-<version>.jar- 📖 BUILD_AND_RELEASE.md - Detailed build, release, and version management instructions
Copyright (C) D.Pfeifle 2010-2026
Contributions are welcome! Feel free to open issues or submit pull requests.