From c658f68e147448d2845106595c34633f49dc31a4 Mon Sep 17 00:00:00 2001
From: Kazhnuz <kazhnuz@kobold.cafe>
Date: Sun, 22 Aug 2021 12:39:44 +0200
Subject: [PATCH] feat: add depth sorting

---
 .../birb/modules/gui/elements/parent.lua             |  2 +-
 .../birb/modules/gui/mixins/elements.lua             | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/sonic-radiance.love/birb/modules/gui/elements/parent.lua b/sonic-radiance.love/birb/modules/gui/elements/parent.lua
index e672886..f0653b0 100644
--- a/sonic-radiance.love/birb/modules/gui/elements/parent.lua
+++ b/sonic-radiance.love/birb/modules/gui/elements/parent.lua
@@ -20,7 +20,7 @@ end
 
 function GuiElement:register()
     local gui = self:getGui()
-    gui:addElement(self.name, self)
+    self.creationId = gui:addElement(self.name, self)
 end
 
 function GuiElement:destroy()
diff --git a/sonic-radiance.love/birb/modules/gui/mixins/elements.lua b/sonic-radiance.love/birb/modules/gui/mixins/elements.lua
index a5270a8..ddfb608 100644
--- a/sonic-radiance.love/birb/modules/gui/mixins/elements.lua
+++ b/sonic-radiance.love/birb/modules/gui/mixins/elements.lua
@@ -3,10 +3,13 @@ local ElementList = Object:extend()
 function ElementList:initElements()
     self.elements = {}
     self.focusedElem = nil
+    self.nbrElement = 0
 end
 
 function ElementList:addElement(name, element)
+    self.nbrElement = self.nbrElement + 1
     self.elements[name] = element
+    return self.nbrElement
 end
 
 function ElementList:deleteElement(name)
@@ -22,6 +25,15 @@ function ElementList:getVisibleElement(topLayer)
             end
         end
     end
+
+    table.sort(visibleList, function (a, b)
+        if (a.depth == b.depth) then
+            return (a.creationId < b.creationId)
+        else
+            return (a.depth > b.depth)
+        end
+    end)
+
     return visibleList
 end