public void AdjustSize(int oriWidth, int oriHeight, int deltaW, int deltaH, out int adjustx, out int adjusty)
{
adjustx = adjusty = 0;
int adjustXleft = 0, adjustYleft = 0, adjustXRight = 0, adjustYRight = 0;
if (imageId == -1 || left == null)
{
if (rect.x + rect.width == oriWidth)
{
rect.width += deltaW;
adjustx = deltaW;
}
if (rect.y + rect.height == oriHeight)
{
rect.height += deltaH;
adjusty = deltaH;
}
}
else
{
left.AdjustSize(oriWidth, oriHeight, deltaW, deltaH, out adjustXleft, out adjustYleft);
right.AdjustSize(oriWidth, oriHeight, deltaW, deltaH, out adjustXRight, out adjustYRight);
adjustx = Mathf.Max(adjustXleft, adjustXRight);
rect.width += adjustx;
adjusty = Mathf.Max(adjustYleft, adjustYRight);
rect.height += adjusty;
}
}
static ImagePackNode InternalPack(RectInt[] rects, int padding)
{
var sortedRects = new ImagePackRect[rects.Length];
for (int i = 0; i < rects.Length; ++i)
{
sortedRects[i] = new ImagePackRect();
sortedRects[i].rect = rects[i];
sortedRects[i].index = i;
}
Array.Sort <ImagePackRect>(sortedRects);
var root = new ImagePackNode();
root.rect = new RectInt(0, 0, 32, 32);
for (int i = 0; i < rects.Length; ++i)
{
if (!root.Insert(sortedRects[i], padding)) // we can't fit
{
int newWidth = 0, newHeight = 0;
if (root.rect.width < root.rect.height)
{
newWidth = (int)NextPowerOfTwo((ulong)root.rect.width + 1);
}
else
{
newHeight = (int)NextPowerOfTwo((ulong)root.rect.height + 1);
}
if (newWidth > k_MaxTextureSize || newHeight > k_MaxTextureSize)
{
Debug.LogAssertion("unable to pack, reached max texture size");
break;
}
root.AdjustSize(newWidth, newHeight);
--i;
}
}
return(root);
}