Moved libs to a unique folder

libs/Maths/Maths.cpp

@@ -0,0 +1,27 @@
+// Maths.cpp : Définit les fonctions de la bibliothèque statique.
+//
+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#endif
+
+#include "Maths.hpp"
+#include <cmath>
+
+double Maths::DegreesToRadians(double degrees) {
+    return degrees * M_PI / 180.0;
+}
+
+// Convertit des radians en degrés
+double Maths::RadiansToDegrees(double radians) {
+    return radians * 180.0 / M_PI;
+}
+
+double Maths::CompensateHorizontalFOV(double baseHorizontalFOVDeg, double baseAspectRatio, double targetAspectRatio) {
+    double baseFOVRad = DegreesToRadians(baseHorizontalFOVDeg);
+    // Step 1 : FOV vertical from horizontal FOV
+    double verticalFOVRad = 2.0 * std::atan(std::tan(baseFOVRad / 2.0) / baseAspectRatio);
+    // Step 2 : New horizontal FOV for target aspect ratio
+    double newFOVRad = 2.0 * std::atan(std::tan(verticalFOVRad / 2.0) * targetAspectRatio);
+
+    return RadiansToDegrees(newFOVRad);
+}