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[orx-noise] Add generated and verified documentation

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This commit is contained in:
Edwin Jakobs
2025-01-19 11:01:54 +01:00
parent 342c144503
commit 3309bd91d5
16 changed files with 792 additions and 31 deletions
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16
orx-noise/src/commonMain/kotlin/SimplexNoise2D.kt
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@@ -9,7 +9,14 @@ private const val G2 = (3.0 - SQRT3) / 6.0
fun simplex(seed: Int, position: Vector2): Double = simplex(seed, position.x, position.y)
//fun simplex2D(seed:Int, x:Double, y:Double) = simplex(seed, x, y)
/**
* Computes a 2D simplex noise value for given coordinates and seed.
*
* @param seed The seed value used for generating the noise.
* @param x The x-coordinate in 2D space for which the noise value is calculated.
* @param y The y-coordinate in 2D space for which the noise value is calculated.
* @return The 2D simplex noise value for the given coordinates and seed.
*/
fun simplex(seed: Int, x: Double, y: Double): Double {
var t = (x + y) * F2
val i = (x + t).fastFloor()
@@ -70,6 +77,13 @@ val simplex2D: (Int, Double, Double) -> Double = ::simplex
val simplex3D: (Int, Double, Double, Double) -> Double = ::simplex
val simplex4D: (Int, Double, Double, Double) -> Double = ::simplex
/**
* Generates a 2D simplex noise vector based on the given seed and input position.
*
* @param seed The seed value used to generate deterministic noise.
* @param x The x-coordinate for the noise generation.
* @return A Vector2 object representing the 2D noise values at the given position.
*/
fun Vector2.Companion.simplex(seed: Int, x: Double): Vector2 = Vector2(
simplex(seed, x, 0.0, 0.0, 0.0),
simplex(seed, 0.0, x + 31.3383, 0.0, 0.0)