Added Ray, AABB structs, and basic rayVsAABB test function.

include/Engine/Core/Collision.h

@@ -1,9 +1,34 @@
 #ifndef Collision_h__
 #define Collision_h__
 
+#include "../GLM.h"
+
 namespace Collision
 {
-//bool RayAABBIntr(float3 origin, float3 direction, float3 center, float3 h);
+struct Ray
+{
+    glm::vec3 Origin;
+    glm::vec3 Direction;
+};
+
+class AABB
+{
+public:
+    AABB() = default;
+    AABB(const glm::vec3& minPos, const glm::vec3& maxPos);
+
+    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& HalfSize() const { return m_HalfSize; }
+private:
+    glm::vec3 m_MinCorner;
+    glm::vec3 m_MaxCorner;
+    glm::vec3 m_Center;
+    glm::vec3 m_HalfSize;
+};
+
+bool RayAABBIntr(const Ray& ray, const AABB& box);
 }
 
 #endif

src/Engine/Core/Collision.cpp

@@ -1,27 +1,39 @@
+#include "Core\Collision.h"
 
 namespace Collision
 {
 
-/*bool RayAABBIntr(float3 origin, float3 direction, float3 center, float3 h)
+AABB::AABB(const glm::vec3& minPos, const glm::vec3& maxPos)
+    : m_MinCorner(minPos)
+    , m_MaxCorner(maxPos)
+    , m_Center(0.5f * (maxPos + minPos))
+    , m_HalfSize(0.5f * (maxPos - minPos))
+{ }
+
+bool RayAABBIntr(const Ray& ray, const AABB& box)
 {
-float3 w = 75.0f * direction;
-float3 v = abs(w);
-float3 c = origin - center + w;
+    glm::vec3 w = 75.0f * ray.Direction;
+    glm::vec3 v = glm::abs(w);
+    glm::vec3 c = ray.Origin - box.Center() + w;
+    glm::vec3 half = box.HalfSize();
+    
+    if (abs(c.x) > v.x + half.x) {
+        return false;
+    }
+    if (abs(c.y) > v.y + half.y) {
+        return false;
+    }
+    if (abs(c.z) > v.z + half.z) {
+        return false;
+    }
 
-//This is better if we hit often, do comparisons simultanously.
-//if (any(abs(c) > v + h))
-//	return false;
-//
-//return !(any(abs(c.yxx*w.zzy - c.zzy*w.yxx) > h.yxx*v.zzy + h.zzy*v.yxx));
-
-//This is better if we miss often, reject test and exit early.
-if (abs(c.x) > v.x + h.x) return false;
-if (abs(c.y) > v.y + h.y) return false;
-if (abs(c.z) > v.z + h.z) return false;
-
-if (abs(c.y*w.z - c.z*w.y) > h.y*v.z + h.z*v.y) return false;
-if (abs(c.x*w.z - c.z*w.x) > h.x*v.z + h.z*v.x) return false;
-return !(abs(c.x*w.y - c.y*w.x) > h.x*v.y + h.y*v.x);
-}*/
+    if (abs(c.y*w.z - c.z*w.y) > half.y*v.z + half.z*v.y) {
+        return false;
+    }
+    if (abs(c.x*w.z - c.z*w.x) > half.x*v.z + half.z*v.x) {
+        return false;
+    }
+    return !(abs(c.x*w.y - c.y*w.x) > half.x*v.y + half.y*v.x);
+}
 
 }

tools/CodeRules.h

@@ -86,8 +86,7 @@ T* ClassType::PublicMemberFunction(bool value)
 
 	if (m_PrivateMember2->PublicMember == 1) {
 		return new T();
-	}
-	else {
+	} else {
 		return nullptr;
 	}
 }