78 lines
2.2 KiB
Kotlin
78 lines
2.2 KiB
Kotlin
package org.openrndr.extra.noise
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import org.openrndr.math.Polar
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import org.openrndr.math.Vector2
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/**
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* Polar coordinate front-end for 2D noise functions
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*/
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fun polarFunc(
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noise: (Int, Double, Double) -> Double,
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origin: Vector2 = Vector2.ZERO,
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): (seed: Int, polar: Polar) -> Double {
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return { seed, polar ->
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val c = polar.cartesian + origin
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noise(seed, c.x, c.y)
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}
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}
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/**
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* Polar coordinate front-end for 2D noise functions
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*/
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fun fixedRadiusPolarFunc(
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noise: (Int, Double, Double) -> Double,
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radius: Double,
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origin: Vector2 = Vector2.ZERO,
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): (seed: Int, angleInDegrees: Double) -> Double {
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return { seed, angleInDegrees ->
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val c = Polar(angleInDegrees, radius).cartesian + origin
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noise(seed, c.x, c.y)
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}
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}
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/**
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* Polar coordinate front-end for 2D noise functions with variable offset
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*/
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fun polarOffsetFunc(
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noise: (Int, Double, Double) -> Double,
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origin: Vector2 = Vector2.ZERO,
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): (seed: Int, polar: Polar, offset: Vector2) -> Double {
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return { seed, polar, offset ->
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val c = polar.cartesian + origin + offset
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noise(seed, c.x, c.y)
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}
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}
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fun ((Int, Double, Double) -> Double).withPolarInput(origin: Vector2 = Vector2.ZERO): (Int, Polar) -> Double =
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polarFunc(this, origin)
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fun ((Int, Vector2) -> Double).withPolarInput(origin: Vector2 = Vector2.ZERO): (Int, Polar) -> Double =
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polarFunc(this.withScalarInput(), origin)
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fun ((Int, Double, Double) -> Double).withPolarOffsetInput(origin: Vector2 = Vector2.ZERO): (Int, Polar, Vector2) -> Double =
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polarOffsetFunc(this, origin)
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fun ((Int, Vector2) -> Double).withPolarOffsetInput(origin: Vector2 = Vector2.ZERO): (Int, Polar, Vector2) -> Double =
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polarOffsetFunc(this.withScalarInput(), origin)
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fun ((Int, Double, Double) -> Double).fixedRadiusPolar(
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radius: Double,
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origin: Vector2 = Vector2.ZERO
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): (Int, Double) -> Double =
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fixedRadiusPolarFunc(this, radius, origin)
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fun example() {
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val polarFbmSimplex = polarFunc(noise = fbmFunc2D(noise = ::simplex))
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val polarBillowPerlin = polarFunc(noise = billowFunc2D(noise = ::perlin))
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val polarFbmSimplexAlt = fbmFunc2D(noise = ::simplex).withPolarInput()
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val polarFbm = simplex2D.fbm().withPolarInput()
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} |