Make YSort stable

Keeps track of the order in which items are collected by
_collect_ysort_children, and uses that order to break
ties between items with similar Y positions.

(cherry picked from commit 8d3afa985b)
This commit is contained in:
John Pennycook 2020-09-27 10:58:54 -07:00 committed by Rémi Verschelde
parent fbafd5c9e2
commit f8cc7893d0
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2 changed files with 6 additions and 2 deletions

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@ -62,6 +62,7 @@ void _collect_ysort_children(VisualServerCanvas::Item *p_canvas_item, Transform2
child_items[i]->ysort_xform = p_transform;
child_items[i]->ysort_pos = p_transform.xform(child_items[i]->xform.elements[2]);
child_items[i]->material_owner = child_items[i]->use_parent_material ? p_material_owner : NULL;
child_items[i]->ysort_index = r_index;
}
r_index++;