modules/menusystem: add a way to manage menusystem activity

gamecore/modules/menusystem/init.lua

@@ -41,12 +41,28 @@ MenuSystem.Widget       = require(cwd .. "widgets")
 function MenuSystem:new()
   self.menus = {}
   self.focusedMenu = ""
+  self.isActive = true
 end
 
 function MenuSystem:reset()
   self.menus = {}
 end
 
+-- ACTIVATION FUNCTIONS
+-- Activate and deactivate the whole menusystem
+
+function MenuSystem:activate()
+  self.isActive = true
+end
+
+function MenuSystem:deactivate()
+  self.isActive = false
+end
+
+function MenuSystem:getActiveState()
+  return self.isActive
+end
+
 -- MENUS FUNCTIONS
 -- Controle the menus of the menusystem
 
@@ -128,6 +144,7 @@ end
 -- Update the menus of the menusystem
 
 function MenuSystem:update(dt)
+  if (self.isActive) then
     self:removeDestroyedMenus()
     for k,v in pairs(self.menus) do
       v:update(dt)
@@ -144,13 +161,15 @@ function MenuSystem:update(dt)
         end
       end
     end
-
+  end
 end
 
 -- MOUSE FUNCTIONS
 -- Send mouse inputs to the menu
 
 function MenuSystem:mousemoved(x, y, dx, dy)
+  if (self.isActive) then
+
     for k,v in pairs(self.menus) do
       if v.isActive then
         if (x > v.x) and (x < v.x + v.w) and (y > v.y) and (y < v.y + v.h) then
@@ -159,9 +178,12 @@ function MenuSystem:mousemoved(x, y, dx, dy)
         end
       end
     end
+
+  end
 end
 
 function MenuSystem:mousepressed( x, y, button, istouch )
+  if (self.isActive) then
     for k,v in pairs(self.menus) do
       if v.isActive then
         if (x > v.x) and (x < v.x + v.w) and (y > v.y) and (y < v.y + v.h) then
@@ -170,6 +192,7 @@ function MenuSystem:mousepressed( x, y, button, istouch )
         end
       end
     end
+  end
 end
 
 -- DRAW FUNCTIONS
@@ -188,7 +211,9 @@ function MenuSystem:getDrawList()
   return drawList
 end
 
-function MenuSystem:draw(dt) -- On dessine les entitées
+function MenuSystem:draw(dt)
+  if (self.isActive) then
+    -- Draw all the menus
     self.drawList = self:getDrawList()
 
     for i,v in ipairs(self.drawList) do
@@ -203,7 +228,7 @@ function MenuSystem:draw(dt) -- On dessine les entitées
         self.menus[self.focusedMenu]:drawCursor()
       end
     end
-
+  end
 end
 
 return MenuSystem