gamecore/world: add an activity system for the world

gamecore/modules/scenes.lua

@@ -64,7 +64,7 @@ function Scene:update(dt)
 end
 
 function Scene:updateWorld(dt)
-  if (self.world ~= nil) then
+  if (self.world ~= nil) and (self.world.isActive) then
     self.world:update(dt)
   end
 end

gamecore/modules/world/baseworld.lua

@@ -44,6 +44,8 @@ function BaseWorld:new(scene, actorlist, mapfile)
   self:setGravity()
 
   self:register()
+
+  self.isActive = true
 end
 
 function BaseWorld:setActorList(actorlist)
@@ -275,6 +277,21 @@ function BaseWorld:getBackgroundColor()
   return self.backcolor[1]/256, self.backcolor[2]/256, self.backcolor[3]/256
 end
 
+-- Lock MANAGEMENT FUNCTIONS
+-- Basic function to handle the lock
+
+function BaseWorld:setActivity(activity)
+  self.isActive = activity
+end
+
+function BaseWorld:switchActivity()
+  self.isActive = (self.isActive == false)
+end
+
+function BaseWorld:getActivity()
+  return self.isActive
+end
+
 -- UPDATE FUNCTIONS
 -- All update functions