Experiment with biomes

2023-06-05 02:54:54 +02:00
parent cccd74f1a5
commit 007a9f7989
5 changed files with 65 additions and 24 deletions
--- a/src/PerlinNoise.php
+++ b/src/PerlinNoise.php
@ -148,7 +148,7 @@ class PerlinNoise
        return $value;
    }

-    function random2D(float $x, float $y, ?int $size = NULL): float
+    function random2D(float $x, float $y, ?int $size = null, float $multiplier = 1.0): float
    {
        if ($size === NULL) {
            $size = $this->_default_size;
@ -167,7 +167,7 @@ class PerlinNoise

 //        $value /= 2.0;

-        return $this->sigmoid($value);
+        return $this->sigmoid($value * $multiplier);
    }

    private function sigmoid(float $t): float