Improvement to y_sort: make clear which item has to be drawn first

when both have the same y coordinate (prevents possible flickering). Reapplying #7241 to the 3.0 code.

Improvement to y_sort: make clear which item has to be drawn first
8b8807e3 · lonesurvivor · 3fae5051 · 8b8807e3
Commit 8b8807e3 authored Jan 03, 2017 by lonesurvivor
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visual_server_canvas.h servers/visual/visual_server_canvas.h +4 -1

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--- a/servers/visual/visual_server_canvas.h
+++ b/servers/visual/visual_server_canvas.h
@@ -44,7 +44,10 @@ public:

 		_FORCE_INLINE_ bool operator()(const Item* p_left,const Item* p_right) const {

-			return p_left->xform.elements[2].y < p_right->xform.elements[2].y;
+			if(Math::abs(p_left->xform.elements[2].y - p_right->xform.elements[2].y) < CMP_EPSILON )
+				return p_left->xform.elements[2].x < p_right->xform.elements[2].x;
+			else
+				return p_left->xform.elements[2].y < p_right->xform.elements[2].y;
 		}
 	};