/// <summary>
/// Add a color into the tree
/// </summary>
/// <param name="pixel">The color</param>
/// <param name="colorBits">The number of significant color bits</param>
/// <param name="level">The level in the tree</param>
/// <param name="octree">The tree to which this node belongs</param>
public void addColor(Color32* pixel, int colorBits, int level, Octree octree)
{
// Update the color information if this is a leaf
if (_leaf)
{
inc(pixel);
// Setup the previous node
octree.trackPrevious(this);
}
else
{
// Go to the next level down in the tree
int shift = 7 - level;
int index = ((pixel->Red & mask[level]) >> (shift - 2)) |
((pixel->Green & mask[level]) >> (shift - 1)) |
((pixel->Blue & mask[level]) >> (shift));
OctreeNode child = _children[index];
if (child == null)
{
// Create a new child node & store in the array
child = new OctreeNode(level + 1, colorBits, octree);
_children[index] = child;
}
// Add the color to the child node
child.addColor(pixel, colorBits, level + 1, octree);
}
}
