Biomorph Evolution Simulator

This program simulates an evolutionary process inspired by Richard Dawkins' "The Blind Watchmaker".
It generates biomorphs, which are geometric figures based on a genotype and evolves them.

• Biomorphs: Geometric figures composed of connected segments, exhibiting characteristics derived from their genotype.
• Genotype: A sequence of 16 genes.
  • 15 skeletal genes (values -9 to +9): Define the biomorph's structure. 7 of these are randomly chosen as active for generation.
  • 1 length gene (values 2 to 12): Defines the biomorph's overall length/scale.
• Evolution:
  • Starts with a randomly generated population of N biomorphs.
  • Mutations: In each generation, one gene of an offspring is altered by +/- 1.
  • Selection: Fitness is determined by similarity to a target image (e.g., Euclidean distance).
  • Termination: Evolution stops if fitness doesn't improve for 10 generations or a maximum generation count is reached.
• Output: Biomorphs are rendered as 150x150 pixel black and white images.

This project uses Cabal.

cabal build

Evolution Mode

To run the evolution simulation:

cabal run evolution -- <target-image-path> <output-image-path> <population-size>

• target-image-path: Path to the image the biomorphs will evolve towards (e.g., test-images/circle.png).
• output-image-path: Path where the image of the best evolved biomorph will be saved (e.g., output/evolved_biomorph.png).
• population-size: The number of biomorphs in each generation (e.g., 20).

cabal run evolution -- test-images/circle.png output/result.png 50

Test Mode

To generate and save a single, predefined test biomorph:

cabal run evolution -- --test <output-image-path>