gamecore/scene: put world wrapper inside the scene

gamecore/modules/scenes.lua

@@ -63,6 +63,12 @@ function Scene:update(dt)
   -- Empty function, is just here to avoid crash
 end
 
+function Scene:updateWorld(dt)
+  if (self.world ~= nil) then
+    self.world:update(dt)
+  end
+end
+
 -- MOUSE FUNCTIONS
 -- Make the scene support the pointer
 
@@ -103,6 +109,12 @@ function Scene:draw()
 
 end
 
+function Scene:drawWorld(dt)
+  if (self.world ~= nil) then
+    self.world:draw()
+  end
+end
+
 -- INPUT FUNCTIONS
 -- Handle inputs from keyboard/controllers
 

gamecore/scenemanager.lua

@@ -67,9 +67,7 @@ function SceneManager:update(dt)
     self.currentScene:setKeys()
     self.currentScene.assets:update(dt)
     self.currentScene.menusystem:update(dt)
-    if (self.currentScene.world ~= nil) then
-      self.currentScene.world:update(dt)
-    end
+    self.currentScene:updateWorld(dt)
     self.currentScene:update(dt)
   end
 end
@@ -112,9 +110,7 @@ function SceneManager:draw()
   if (self.currentScene ~= nil) then
     self.currentScene:draw(dt)
     self.currentScene.menusystem:draw()
-    if (self.currentScene.world ~= nil) then
-      self.currentScene.world:draw()
-    end
+    self.currentScene:drawWorld()
   end
   self.controller.screen:cease()
 end