Moved a tonne of code around

src/dawn/util/rand.h

@@ -0,0 +1,56 @@
+/**
+ * Copyright (c) 2021 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "../libs.h"
+#include "math.h"
+
+/**
+ * Seed the random number generator
+ * @param seed Seed to use for the seeded random number generator.
+ */
+#define randSeed(seed) (srand(seed))
+
+/**
+ * Generates a random int32_t.
+ * @returns A random int32_t number.
+ */
+#define randInt32() ((int32_t)rand())
+
+/**
+ * Generates a random floating point number.
+ * @returns A random floating point number.
+ */
+#define randFloat() (((float)randInt32()) * MATH_PI)
+
+/**
+ * Generates a random uint32_t
+ * @returns A random uint32_t number.
+ */
+#define randUint32() (uint32_t)randInt32()
+
+/**
+ * Generates a random uint8_t
+ * @returns A random uint8_t number.
+ */
+#define randUint8() (uint8_t)randInt32()
+
+////////////////////////////////////////////////////////////////////////////////
+
+/**
+ * Clamps a random number generation.
+ * @param n Number that has been generated from the random.
+ * @param min Minimum value to generate from. (Inclusive)
+ * @param max Maximum value to generate to. (Exclusive)
+ * @return Random number between min and max.
+ */
+#define randRange(n, min, max) (mathMod(n, (max-min)) + min)
+
+#define randInt32Range(min, max) randRange(randInt32(), min, max)
+#define randFloatRange(min, max) ((float)fmod(randFloat(), max- min) + min)
+#define randUint32Range(min, max) randRange(randUint32(), min, max)
+#define randUint8Range(min, max) randRange(randUint8(), min, max)