modules/menus : add a way to lock visibility

examples/test_menus/init.lua

@@ -74,6 +74,10 @@ function TestScene:new()
   self.menusystem.menus["testMenu3"]:addSlot(3, 5, 0, 3, 1)
   self.menusystem.menus["testMenu3"]:addSlot(4, 5, 1, 3, 4)
 
+  self.menusystem.menus["testMenu1"].isLocked = true
+  self.menusystem.menus["testMenu2"].isLocked = true
+  self.menusystem.menus["testMenu3"].isLocked = true
+
   self.assets:addImageFont("medium", "examples/test_menus/assets/medium")
 
   local w, h = 424/2, 240 - 48
@@ -101,6 +105,8 @@ function TestScene:new()
 
   MenuWidget(self, "text_menu3", "text_menu6")
   MenuWidget(self, "text_menu3", "text_menu6")
+
+  self.menusystem:setAllMenuVisibility(false)
 end
 
 function TestScene:update(dt)

gamecore/modules/menusystem/init.lua

@@ -48,7 +48,7 @@ end
 
 function MenuSystem:setAllMenuVisibility(visibility)
   for k,v in pairs(self.menus) do
-    v.isVisible = visibility
+    v:setVisibility(visibility)
   end
 end
 

gamecore/modules/menusystem/parent.lua

@@ -19,6 +19,7 @@ function Menu:new(menusystem, name, x, y, w, h)
   self.isDestroyed  = false
   self.isVisible    = true
   self.isActive     = true
+  self.isLocked     = false
 
   self.sound = {}
   self.sound.asset = nil
@@ -27,6 +28,14 @@ function Menu:new(menusystem, name, x, y, w, h)
   self:register()
 end
 
+function Menu:setVisibility(visibility)
+  if self.isLocked == false then
+    self.isVisible = visibility
+  else
+    self.isVisible = true
+  end
+end
+
 function Menu:getFocus()
   self.menusystem.focusedMenu = self.name
 end