visible = false wasn't working

api.lua

@@ -2,7 +2,7 @@ panel_lib.panels = {}       -- KEY: p_name; VALUE: {{"panel name" = panel}, {"pa
 
 local function clone_table() end
 local function add_sub_elem() end
-local function remove_sub_elem() end
+local function update_sub_elems() end
 
 Panel = {
     name = "",
@@ -53,7 +53,7 @@ function Panel:new(name, def)
       name = def.name
     end
 
-    if def.is_shown then
+    if def.is_shown ~= nil then
       minetest.log("warning", "[PANEL_LIB] `is_shown` is deprecated. Use `visible` instead")
       def.visible = def.is_shown
     end
@@ -107,13 +107,15 @@ function Panel:new(name, def)
       panel.player_name = def.player
     end
 
-    panel.visible = def.visible
+    if def.visible ~= nil and type(def.visible) == "boolean" then
+      panel.visible = def.visible
+    end
 
     panel.hud_text.bg_hud_txt = panel.background_def.text
     panel.hud_text.text_hud_txt = panel.title_def.text
 
     -- se il pannello non è mostrato di base, svuoto sfondo e titolo
-    if not def.visible then
+    if panel.visible == false then
       panel.background_def.text = ""
       panel.title_def.text = ""
     end
@@ -189,8 +191,6 @@ end
 
 function Panel:update(def, txt_elems, img_elems)
 
-  local player = minetest.get_player_by_name(self.player_name)
-
   if def ~= nil then
     for k, v in pairs(def) do
       self[k] = v
@@ -198,39 +198,11 @@ function Panel:update(def, txt_elems, img_elems)
   end
 
   if txt_elems ~= nil then
-
-    for elem, _ in pairs(txt_elems) do
-      for k, v in pairs(txt_elems[elem]) do
-        self[elem][k] = v
-
-        if k == "text" then
-          self.hud_text[elem] = v
-        end
-
-        if self.visible == true then
-          player:hud_change(self.hud_id[elem], k, v)
-        end
-      end
-    end
-
+    update_sub_elems(self, txt_elems)
   end
 
   if img_elems ~= nil then
-
-    for elem, _ in pairs(img_elems) do
-      for k, v in pairs(img_elems[elem]) do
-        self[elem][k] = v
-
-        if k == "text" then
-          self.hud_text[elem] = v
-        end
-
-        if self.visible == true then
-          player:hud_change(self.hud_id[elem], k, v)
-        end
-      end
-    end
-
+    update_sub_elems(self, img_elems)
   end
 end
 
@@ -341,11 +313,10 @@ function add_sub_elem(panel, type, name, HUD_elem)
 
   -- mantengo la stessa posizione del corpo del panel, costringendo
   -- l'utente a modificare gli offset se vuole spostare gli elementi
-  HUD_elem.position = mould.position
   panel[name].position = mould.position
 
   -- mostro l'elemento se il pannello era già visibile
-  panel[name].text = panel.visible and panel[name].text or ""
+  panel[name].text = panel:is_visible() and panel[name].text or ""
 
   panel.hud_id[name] = minetest.get_player_by_name(panel.player_name):hud_add(panel[name])
   panel.hud_text[name] = HUD_elem.text
@@ -353,6 +324,29 @@ end
 
 
 
+function update_sub_elems(panel, elems)
+
+  local player = minetest.get_player_by_name(panel.player_name)
+
+  for elem, _ in pairs(elems) do
+    for k, v in pairs(elems[elem]) do
+      panel[elem][k] = v
+
+      if k == "text" then
+        panel.hud_text[elem] = v
+        -- aggiorno il testo solo se visibile
+        if panel:is_visible() then
+          player:hud_change(panel.hud_id[elem], k, v)
+        end
+      else
+        player:hud_change(panel.hud_id[elem], k, v)
+      end
+    end
+  end
+end
+
+
+
 
 
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