AABB can also be created with center position and its size.

include/Engine/Core/AABB.h

@@ -7,12 +7,16 @@ class AABB
 {
 public:
     AABB() = default;
+    //No checks are made. Values in minPos must be less than values in maxPos, i.e. min.x < max.x, etc.
     AABB(const glm::vec3& minPos, const glm::vec3& maxPos);
+    //No checks are made. Size must consist of non-negative numbers.
+    virtual void CreateFromCenter(const glm::vec3& center, const glm::vec3& size);
     virtual ~AABB();
 
     const glm::vec3& MinCorner() const { return m_MinCorner; }
     const glm::vec3& MaxCorner() const { return m_MaxCorner; }
     const glm::vec3& Center() const { return m_Center; }
+    const glm::vec3& Size() const { return 2.0f * m_HalfSize; }
     const glm::vec3& HalfSize() const { return m_HalfSize; }
 private:
     glm::vec3 m_MinCorner;

src/Engine/Core/AABB.cpp

@@ -7,5 +7,13 @@ AABB::AABB(const glm::vec3& minPos, const glm::vec3& maxPos)
     , m_HalfSize(0.5f * (maxPos - minPos))
 {}
 
+void AABB::CreateFromCenter(const glm::vec3& center, const glm::vec3& size)
+{
+    m_Center = center;
+    m_HalfSize = 0.5f * size;
+    m_MinCorner = m_Center - m_HalfSize;
+    m_MaxCorner = m_Center + m_HalfSize;
+}
+
 AABB::~AABB()
 {}