Bugfix: calling :remove() deleted all the panels assigned to a player

api.lua

@@ -3,6 +3,7 @@ panel_lib.panels = {}       -- KEY: p_name; VALUE: {{"panel name" = panel}, {"pa
 local function clone_table() end
 
 Panel = {
+    name = "",
     -- player to show the panel to
     player_name = "",
     -- ids of the hud of the player
@@ -42,6 +43,13 @@ function Panel:new(def)
     setmetatable(panel, metapanel)
     metapanel.__index = metapanel
 
+    if not def.name or type(def.name) ~= "string" then
+      minetest.log("warning", "[PANEL_LIB] Can't create a panel without a proper name, aborting")
+      return
+    else
+      panel.name = def.name
+    end
+
     if def.position then
       panel.background_def.position = def.position
       panel.title_def.position = def.position
@@ -202,7 +210,7 @@ end
 
 
 function Panel:remove()
-  panel_lib.panels[self.player_name] = nil
+  panel_lib.panels[self.player_name][self.name] = nil
   self:hide()
   self = nil
 end