is_shown -> visible | Panels are now by default visible when created

api.lua

@@ -34,8 +34,7 @@ Panel = {
     sub_img_elems = {},
     sub_txt_elems = {},
 
-    is_shown = false
+    visible = true
-
 }
 
 
@@ -53,6 +52,11 @@ function Panel:new(name, def)
       def = clone_table(name)
       name = def.name
     end
+
+    if def.is_shown then
+      minetest.log("warning", "[PANEL_LIB] `is_shown` is deprecated. Use `visible` instead")
+      def.visible = def.is_shown
+    end
     --^------------------ LEGACY UPDATE, to remove in 3.0 -------------------^
 
     if not name or type(name) ~= "string" then
@@ -103,27 +107,33 @@ function Panel:new(name, def)
       panel.player_name = def.player
     end
 
-    local player = minetest.get_player_by_name(def.player)
+    panel.visible = def.visible
-
-    -- creo sfondo e titolo
-    panel.hud_id.bg_hud_id = player:hud_add(panel.background_def)
-    panel.hud_id.text_hud_id = player:hud_add(panel.title_def)
 
     panel.hud_text.bg_hud_txt = panel.background_def.text
     panel.hud_text.text_hud_txt = panel.title_def.text
 
-    panel.is_shown = true
+    -- se il pannello non è mostrato di base, svuoto sfondo e titolo
+    if not def.visible then
+      panel.background_def.text = ""
+      panel.title_def.text = ""
+    end
+
+    local player = minetest.get_player_by_name(def.player)
+
+    -- assegno sfondo e titolo
+    panel.hud_id.bg_hud_id = player:hud_add(panel.background_def)
+    panel.hud_id.text_hud_id = player:hud_add(panel.title_def)
 
     -- controllo sottoelementi
     if def.sub_img_elems then
-      for name, HUD_elem in pairs(def.sub_img_elems) do
+      for subname, HUD_elem in pairs(def.sub_img_elems) do
-        add_sub_elem(panel, "image", name, HUD_elem)
+        add_sub_elem(panel, "image", subname, HUD_elem)
       end
     end
 
     if def.sub_txt_elems then
-      for name, HUD_elem in pairs(def.sub_txt_elems) do
+      for subname, HUD_elem in pairs(def.sub_txt_elems) do
-        add_sub_elem(panel, "text", name, HUD_elem)
+        add_sub_elem(panel, "text", subname, HUD_elem)
       end
     end
 
@@ -157,7 +167,7 @@ function Panel:show()
     player:hud_change(self.hud_id[name], "text", self.hud_text[name])
   end
 
-  self.is_shown = true
+  self.visible = true
 end
 
 
@@ -172,7 +182,7 @@ function Panel:hide()
     end
 	end
 
-  self.is_shown = false
+  self.visible = false
 end
 
 
@@ -197,7 +207,7 @@ function Panel:update(def, txt_elems, img_elems)
           self.hud_text[elem] = v
         end
 
-        if self.is_shown == true then
+        if self.visible == true then
           player:hud_change(self.hud_id[elem], k, v)
         end
       end
@@ -215,7 +225,7 @@ function Panel:update(def, txt_elems, img_elems)
           self.hud_text[elem] = v
         end
 
-        if self.is_shown == true then
+        if self.visible == true then
           player:hud_change(self.hud_id[elem], k, v)
         end
       end
@@ -240,8 +250,8 @@ end
 
 
 
-function Panel:is_shown()
+function Panel:is_visible()
-  return self.is_shown
+  return self.visible
 end
 
 
@@ -256,7 +266,7 @@ function Panel:remove_sub_elem(name)
   self.sub_txt_elems[name] = nil
   self.sub_img_elems[name] = nil
 
-  if self.is_shown then
+  if self.visible then
     minetest.get_player_by_name(self.player_name):hud_remove(self.hud_id[name])
   end
   self.hud_id[name] = nil
@@ -335,8 +345,22 @@ function add_sub_elem(panel, type, name, HUD_elem)
   panel[name].position = mould.position
 
   -- mostro l'elemento se il pannello era già visibile
-  panel[name].text = panel.is_shown and panel[name].text or ""
+  panel[name].text = panel.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
 end
+
+
+
+
+
+----------------------------------------------
+------------------DEPRECATED------------------
+----------------------------------------------
+
+-- to remove in 3.0
+function Panel:is_shown()
+  minetest.log("warning", "[PANEL_LIB] `is_shown()` is deprecated. Use `is_visible()` instead")
+  return self:is_visible()
+end