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diff --git a/src/noise.hpp b/src/noise.hpp
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+/*
+ * =====================================================================================
+ *
+ *       Filename:  noise.hpp
+ *
+ *    Description:  Defining Perlin Noise 
+ *
+ *        Version:  1.0
+ *        Created:  01/07/2023 10:52:51 PM
+ *       Revision:  none
+ *       Compiler:  gcc
+ *
+ *         Author:  Cara Salter (muirrum), cara@devcara.com
+ *   Organization:  
+ *
+ * =====================================================================================
+ */
+#include <vector>
+#include <stdlib.h>
+
+class PerlinNoise {
+    // permutation vector
+    std::vector<int> p;
+    public:
+        PerlinNoise();
+        PerlinNoise(unsigned int seed);
+        double noise(double x, double y, double z);
+    private:
+        double fade(double t);
+        double lerp(double t, double a, double b);
+        double grad(int hash, double x, double y, double z);
+};