Rotating spheres in the 3D scene

1 files changed, 17 insertions, 1 deletions

diff --git a/shared_cpp/mathlib.h b/shared_cpp/mathlib.h
index e3c6875..5f9abff 100644
--- a/shared_cpp/mathlib.h
+++ b/shared_cpp/mathlib.h
@@ -21,6 +21,17 @@
 #define DEG_TO_RAD(x) (x * (PI / 180.f))
 #define RAD_TO_DEG(x) (x * (180.f / PI))
 
+
+// -- Random
+inline float randomFloatBetween(float min, float max) {
+    float random = static_cast<float>(rand()) / static_cast<float>(RAND_MAX);
+    return (max - min) * random + min;
+}
+
+inline int randomIntBetween(int min, int max) {
+    return static_cast<int>(randomFloatBetween(min, max));
+}
+
 struct Vector2 {
     float x = 0;
     float y = 0;
@@ -130,11 +141,13 @@ struct Mat4x4 {
 };
 
 struct Quaternion {
-    float w = 0;
+    float w = 1;
     float x = 0;
     float y = 0;
     float z = 0;
 
+    Quaternion();
+    Quaternion(float inW, float inX, float inY, float inZ);
     float operator [](int index);
 	Quaternion operator*(const Quaternion& other) const;
 	Quaternion operator*(const float& scale) const;
@@ -145,6 +158,9 @@ struct Quaternion {
 	Quaternion normalize() const;
 	float length() const;
 	float dot(const Quaternion& other) const;
+
+    void printDebug(const char* name);
 };
 
 Quaternion quaternionFromRotation(Vector3 axis, float angleRadians);
+Quaternion quaternionFromEulerAngle(float yaw, float pitch, float roll);