using NeutralLandscapes
using Plots

function demolandscape(alg::T) where {T <: NeutralLandscapeMaker}
    heatmap(rand(alg, (200, 200)), frame=:none, aspectratio=1, c=:davos)
end

demolandscape (generic function with 1 method)

No gradient

demolandscape(NoGradient())

Planar gradient

demolandscape(PlanarGradient(35))

Edge gradient

demolandscape(EdgeGradient(186))

Wave surface

demolandscape(WaveSurface(35, 3))

Rectangular cluster

demolandscape(RectangularCluster())

Distance gradient

sources = unique(rand(1:40000, 50))
demolandscape(DistanceGradient(sources))

Nearest-neighbor element

heatmap(rand(NearestNeighborElement(20, 1), (45, 45)))

Voronoi

demolandscape(DiscreteVoronoi(40))

Perlin Noise

demolandscape(PerlinNoise())

Classify landscape

sources = unique(rand(1:40000, 50))
heatmap(NeutralLandscapes.classify!(rand(DistanceGradient(sources), (200, 200)), [0.5, 1, 1, 0.5]))

Diamond Square

demolandscape(DiamondSquare())

Midpoint Displacement

demolandscape(MidpointDisplacement())