36 lines
1.3 KiB
Kotlin
36 lines
1.3 KiB
Kotlin
package org.openrndr.extra.noise
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import org.openrndr.math.Vector2
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import org.openrndr.math.mix
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fun valueLinear(seed: Int, x: Double, y: Double) = value(seed, x, y, ::linear)
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fun valueQuintic(seed: Int, x: Double, y: Double) = value(seed, x, y, ::quintic)
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fun valueHermite(seed: Int, x: Double, y: Double) = value(seed, x, y, ::hermite)
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fun valueLinear(seed: Int, position: Vector2) =
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value(seed, position.x, position.y, ::linear)
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fun valueQuintic(seed: Int, position: Vector2) =
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value(seed, position.x, position.y, ::quintic)
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fun valueHermite(seed: Int, position: Vector2) =
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value(seed, position.x, position.y, ::hermite)
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inline fun value(seed: Int, x: Double, y: Double, crossinline interpolation: (Double) -> Double = ::linear): Double {
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val x0 = x.fastFloor()
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val y0 = y.fastFloor()
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val x1 = x0 + 1
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val y1 = y0 + 1
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val xs = interpolation(x - x0)
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val ys = interpolation(y - y0)
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val xf0 = mix(valCoord2D(seed, x0, y0), valCoord2D(seed, x1, y0), xs)
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val xf1 = mix(valCoord2D(seed, x0, y1), valCoord2D(seed, x1, y1), xs)
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return mix(xf0, xf1, ys)
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}
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val valueLinear2D: (Int, Double, Double) -> Double = ::valueLinear
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val valueQuintic2D: (Int, Double, Double) -> Double = ::valueQuintic
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val valueHermite2D: (Int, Double, Double) -> Double = ::valueHermite |