/procgen

A collection of procedural generation algorithms.

Primary LanguageDartOtherNOASSERTION

procgen

A collection of procedural generation algorithms. Check out the demos here. Heavily inspired by watabou's work.

Features

  • Noise

    • Perlin Noise
    • Layered Fractal Noise
    • Poisson disk sampling algorithm.

  • Triangulation

    • Delaunay triangulation
    • Voronoi diagram
    • Random poisson Voronoi diagram

  • Geometry

    • Point, Segment, Line, Polyline and Polygon types
    • Polyline and Polygon Chaikin smoothing
    • Polyline Average smoothing
    • Polyline Resampling
    • Segment and Line Intersection
    • Polyline and Polygon offsetting

and other misc things

Usage

dart pub add procgen
import 'package:procgen/procgen.dart';

void main() {
    // Generate some Perlin noise
    final noise = Perlin(
        rng: Random(),
    );
    // pixel[x][y] = noise.get(x, y);

    // Generate some fractal noise
    final fractal = LayeredNoise.fractal(
        rng: Random(),
        octaves: 5,
    );
    // pixel[x][y] = fractal.get(x, y);

    // Generate some poisson disk samples
    final samples = PoissonPattern(
        rng: Random(),
        width: 100,
        height: 100,
        distance: 5, // min distance between points
    );
    // print(voronoi.samples)

    // Generate a voronoi pattern from those points
    final voronoi = VoronoiPattern(
        seeds: samples.points,
        width: 100,
        height: 100,
    );
    // print(voronoi.pattern)

    // Get a repeated pattern of the voronoi polygons
    final polygons = voronoi.getRect(-50, -50, 200, 200);

    // Now smooth those polygons
    final smoothed = polygons.map((poly) => poly.chaikinSmooth());
}

Licence

BSD 2-Clause License

Copyright (c) 2024, Andrew Brampton

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

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