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Make YSort stable

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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.
This commit is contained in:
John Pennycook 2020-09-27 10:58:54 -07:00
parent 93d42693a3
commit 8d3afa985b
2 changed files with 4 additions and 1 deletions
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1
servers/rendering/rendering_server_canvas.cpp
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@ -81,6 +81,7 @@ void _collect_ysort_children(RenderingServerCanvas::Item *p_canvas_item, Transfo
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 : nullptr;
child_items[i]->ysort_index = r_index;
}
r_index++;