void MapBlock::QuadIntersectRay(const QuadTree::Node* node, const Ray& ray, float& tMin) const {
if(!node->IsVisible()) return;
if(!ray.IntersectsBox(node->mBoundingBox)) return;
if(!node->mChildren[0]){
GetPatchIntersect(node->mIndex, ray, tMin);
return;
}
QuadIntersectRay(node->mChildren[0], ray, tMin);
QuadIntersectRay(node->mChildren[1], ray, tMin);
QuadIntersectRay(node->mChildren[2], ray, tMin);
QuadIntersectRay(node->mChildren[3], ray, tMin);
return;
}
void SceneManager::MouseMove(int x, int y, int /*flags*/){
Vector2 wnd = Vector2(float(mWidth), float(mHeight));
Vector3 mouse = Vector3(float(x), float(mHeight - y), 0.0f);
mHoverEntity = 0;
if(!mEntityFlag[ENTITY_CAN_HOVER_IDX].Size()) return;
Array<Entity*, 10>& lst = mEntityFlag[ENTITY_CAN_HOVER_IDX];
Ray ray = UnprojectRay(mouse, mCamera->GetTransform(), mCamera->GetProjection(), wnd);
Vector3 camPos = mCamera->GetTransform().TransformCoord(Vector3(0.0f, 0.0f, 0.0f));
float nearest = 9999.0f;
float dist;
for(unsigned int i = 0; i < lst.Size(); ++i){
Entity* entity = lst[i];
if(!entity->mVisible) continue;
if(!ray.IntersectsBox(entity->GetBoundingBox(), dist)) continue;
if(dist > nearest) continue;
nearest = dist;
mHoverEntity = entity;
}
}
virtual bool CastRay(const Ray& ray, Vector3& out, float maxLengthSq){
if(!ray.IntersectsBox(mBoundingBoxTransformed)) return false;
return true;
}