Added Update call in Game to test OctTree by using collision.

src/Engine/Core/OctTree.cpp

@@ -4,6 +4,8 @@
 
 #include "Core/OctTree.h"
 #include "Core/Collision.h"
+#include "Core/World.h"
+#include "Rendering/Camera.h"
 
 namespace
 {
@@ -27,6 +29,7 @@ OctTree::OctTree()
 
 OctTree::OctTree(const AABB& octTreeBounds, int subDivisions)
     : m_Box(octTreeBounds)
+    , m_UpdatedOnce(false)
 {
     if (subDivisions == 0) {
         for (OctTree*& c : m_Children) {
@@ -80,6 +83,46 @@ OctTree::~OctTree()
     }
 }
 
+void OctTree::Update(float dt, World* world, Camera* cam)
+{
+    AABB aabb;
+    for (ComponentWrapper& c : world->GetComponents("Collision")) {
+        aabb.CreateFromCenter(c["BoxCenter"], c["BoxSize"]);
+        AddStaticObject(aabb);
+    }
+    const glm::vec4 redCol = glm::vec4(1, 0.2f, 0, 1);
+    const glm::vec4 greenCol = glm::vec4(0.1f, 1.0f, 0.25f, 1);
+    const glm::vec3 boxSize = 0.1f*glm::vec3(1.0f, 1.0f, 1.0f);
+
+    if (!m_UpdatedOnce) {
+        m_BoxID = world->CreateEntity();
+        ComponentWrapper transform = world->AttachComponent(m_BoxID, "Transform");
+        transform["Scale"] = boxSize;
+        ComponentWrapper model = world->AttachComponent(m_BoxID, "Model");
+        model["Resource"] = "Models/Core/UnitBox.obj";
+        m_UpdatedOnce = true;
+    }
+
+    AABB box;
+    auto boxPos = cam->Position() + 1.2f*cam->Forward();
+    box.CreateFromCenter(boxPos, boxSize);
+    ComponentWrapper transform = world->GetComponent(m_BoxID, "Transform");
+    transform["Position"] = boxPos;
+    ComponentWrapper model = world->GetComponent(m_BoxID, "Model");
+    //if (BoxCollides(box, AABB())) {
+    if (Collision::AABBVsAABB(box, aabb)) {
+        cam->SetPosition(m_PrevPos);
+        cam->SetOrientation(m_PrevOri);
+        model["Color"] = greenCol;
+    } else {
+        model["Color"] = redCol;
+    }
+
+    m_PrevPos = cam->Position();
+    m_PrevOri = cam->Orientation();
+    ClearObjects();
+}
+
 bool OctTree::BoxCollides(const AABB& boxToTest, AABB& outBoxIntersected) const
 {
     if (hasChildren()) {