A some simple terrain generators written in the Odin (stb/image dependency).

• Generates 2D height maps using noise (core:math/noise).
• Configurable (seed, octaves, frequency, amplitude, lacunarity, persistence).
• Optional "island" algorithm to shape the landmass into an island.
• Customizable terrain elevation thresholds and colours.

• Generates 2D cave structures using simple cellular automata.
• Configurable (seed, "wall" density and smoothing).

Running the example code will produce a terrain.png and cave.png in the same directory.

MIT