void OctreeTests::elementAddChildTests() {
EntityTreePointer tree = std::make_shared<EntityTree>();
auto elem = tree->createNewElement();
QCOMPARE((bool)elem->getChildAtIndex(0), false);
elem->addChildAtIndex(0);
QCOMPARE((bool)elem->getChildAtIndex(0), true);
const int MAX_CHILD_INDEX = 8;
for (int i = 0; i < MAX_CHILD_INDEX; i++) {
for (int j = 0; j < MAX_CHILD_INDEX; j++) {
auto e = tree->createNewElement();
// add a single child.
auto firstChild = e->addChildAtIndex(i);
QCOMPARE(e->getChildAtIndex(i), firstChild);
if (i != j) {
// add a second child.
auto secondChild = e->addChildAtIndex(j);
QCOMPARE(e->getChildAtIndex(i), firstChild);
QCOMPARE(e->getChildAtIndex(j), secondChild);
// remove scecond child.
e->removeChildAtIndex(j);
QCOMPARE((bool)e->getChildAtIndex(j), false);
}
QCOMPARE(e->getChildAtIndex(i), firstChild);
}
}
}
void HorizontalLayout::addOrMergeChildAtIndex(ExpressionLayout * eL, int index, bool removeEmptyChildren) {
if (eL->isHorizontal()) {
mergeChildrenAtIndex(static_cast<HorizontalLayout *>(eL), index, removeEmptyChildren);
} else {
addChildAtIndex(eL, index);
}
}
OctreeElement* OctreeElement::getOrCreateChildElementContaining(const AABox& box) {
OctreeElement* child = NULL;
int childIndex = getMyChildContaining(box);
// If getMyChildContaining() returns CHILD_UNKNOWN then it means that our level
// is the correct level for this cube
if (childIndex == CHILD_UNKNOWN) {
return this;
}
// Now, check if we have a child at that location
child = getChildAtIndex(childIndex);
if (!child) {
child = addChildAtIndex(childIndex);
}
// if we've made a really small child, then go ahead and use that one.
if (child->getScale() <= SMALLEST_REASONABLE_OCTREE_ELEMENT_SCALE) {
return child;
}
// Now that we have the child to recurse down, let it answer the original question...
return child->getOrCreateChildElementContaining(box);
}
// TODO: consider removing this, or switching to using getOrCreateChildElementContaining(const AACube& box)...
OctreeElement* OctreeElement::getOrCreateChildElementAt(float x, float y, float z, float s) {
OctreeElement* child = NULL;
// If the requested size is less than or equal to our scale, but greater than half our scale, then
// we are the Element they are looking for.
float ourScale = getScale();
float halfOurScale = ourScale / 2.0f;
if(s > ourScale) {
qCDebug(octree, "UNEXPECTED -- OctreeElement::getOrCreateChildElementAt() s=[%f] > ourScale=[%f] ",
(double)s, (double)ourScale);
}
if (s > halfOurScale) {
return this;
}
int childIndex = getMyChildContainingPoint(glm::vec3(x, y, z));
// Now, check if we have a child at that location
child = getChildAtIndex(childIndex);
if (!child) {
child = addChildAtIndex(childIndex);
}
// Now that we have the child to recurse down, let it answer the original question...
return child->getOrCreateChildElementAt(x, y, z, s);
}
void VoxelTreeElement::splitChildren() {
if (requiresSplit()) {
const nodeColor& ourColor = getColor();
// for colored leaves, we must add *all* the children
for (int i = 0; i < NUMBER_OF_CHILDREN; i++) {
addChildAtIndex(i)->setColor(ourColor);
}
nodeColor noColor = { 0, 0, 0, 0};
setColor(noColor); // set our own color to noColor so we are a pure non-leaf
}
}
void HorizontalLayout::privateRemoveChildAtIndex(int index, bool deleteAfterRemoval, bool forceRemove) {
/* Remove the child before potentially adding an EmptyLayout. Indeed, adding
* a new child would remove any EmptyLayout surrounding the new child and in
* the case the child to be removed was an Empty layout, it would result in
* removing it twice if we remove it afterwards. */
DynamicLayoutHierarchy::removeChildAtIndex(index, deleteAfterRemoval);
/* If the child to remove is at index 0 and its right sibling must have a left
* sibling (e.g. it is a VerticalOffsetLayout), replace the child with an
* EmptyLayout instead of removing it. */
if (!forceRemove && index == 0 && numberOfChildren() > 0 && child(0)->mustHaveLeftSibling()) {
addChildAtIndex(new EmptyLayout(), 0);
}
}
// TODO: consider removing this, or switching to using getOrCreateChildElementContaining(const AACube& box)...
OctreeElement* OctreeElement::getOrCreateChildElementAt(float x, float y, float z, float s) {
OctreeElement* child = NULL;
// If the requested size is less than or equal to our scale, but greater than half our scale, then
// we are the Element they are looking for.
float ourScale = getScale();
float halfOurScale = ourScale / 2.0f;
if(s > ourScale) {
qCDebug(octree, "UNEXPECTED -- OctreeElement::getOrCreateChildElementAt() s=[%f] > ourScale=[%f] ",
(double)s, (double)ourScale);
}
if (s > halfOurScale) {
return this;
}
// otherwise, we need to find which of our children we should recurse
glm::vec3 ourCenter = _cube.calcCenter();
int childIndex = CHILD_UNKNOWN;
// left half
if (x > ourCenter.x) {
if (y > ourCenter.y) {
// top left
if (z > ourCenter.z) {
// top left far
childIndex = CHILD_TOP_LEFT_FAR;
} else {
// top left near
childIndex = CHILD_TOP_LEFT_NEAR;
}
} else {
// bottom left
if (z > ourCenter.z) {
// bottom left far
childIndex = CHILD_BOTTOM_LEFT_FAR;
} else {
// bottom left near
childIndex = CHILD_BOTTOM_LEFT_NEAR;
}
}
} else {
// right half
if (y > ourCenter.y) {
// top right
if (z > ourCenter.z) {
// top right far
childIndex = CHILD_TOP_RIGHT_FAR;
} else {
// top right near
childIndex = CHILD_TOP_RIGHT_NEAR;
}
} else {
// bottom right
if (z > ourCenter.z) {
// bottom right far
childIndex = CHILD_BOTTOM_RIGHT_FAR;
} else {
// bottom right near
childIndex = CHILD_BOTTOM_RIGHT_NEAR;
}
}
}
// Now, check if we have a child at that location
child = getChildAtIndex(childIndex);
if (!child) {
child = addChildAtIndex(childIndex);
}
// Now that we have the child to recurse down, let it answer the original question...
return child->getOrCreateChildElementAt(x, y, z, s);
}
