Convert orx-shader-phrases and orx-noise to MPP

orx-noise/src/commonMain/kotlin/ValueNoise2D.kt

@@ -0,0 +1,32 @@
+package org.openrndr.extra.noise
+
+import org.openrndr.math.Vector2
+import org.openrndr.math.mix
+
+fun valueLinear(seed: Int, x: Double, y: Double) = value(seed, x, y, ::linear)
+fun valueQuintic(seed: Int, x: Double, y: Double) = value(seed, x, y, ::quintic)
+fun valueHermite(seed: Int, x: Double, y: Double) = value(seed, x, y, ::hermite)
+
+fun valueLinear(seed: Int, position: Vector2) =
+        value(seed, position.x, position.y, ::linear)
+
+fun valueQuintic(seed: Int, position: Vector2) =
+        value(seed, position.x, position.y, ::quintic)
+
+fun valueHermite(seed: Int, position: Vector2) =
+        value(seed, position.x, position.y, ::hermite)
+
+inline fun value(seed: Int, x: Double, y: Double, crossinline interpolation: (Double) -> Double = ::linear): Double {
+    val x0 = x.fastFloor()
+    val y0 = y.fastFloor()
+    val x1 = x0 + 1
+    val y1 = y0 + 1
+
+    val xs = interpolation(x - x0)
+    val ys = interpolation(y - y0)
+
+    val xf0 = mix(valCoord2D(seed, x0, y0), valCoord2D(seed, x1, y0), xs)
+    val xf1 = mix(valCoord2D(seed, x0, y1), valCoord2D(seed, x1, y1), xs)
+
+    return mix(xf0, xf1, ys)
+}