scenes/levels: only load Sti and Bump inside the world manager

imperium-porcorum.love/main.lua

@@ -8,8 +8,6 @@ Game        = require "game"
 Gamestate   = require "libs.hump.gamestate"
 Camera      = require "libs.hump.camera"
 
-Sti         = require "libs.sti"
-Bump        = require "libs.bump"
 anim8       = require "libs.anim8"
 lovebird    = require "libs.lovebird"
 CScreen     = require "libs.cscreen"

imperium-porcorum.love/scenes/levels/world.lua

@@ -2,6 +2,9 @@ local World = Object:extend()
 
 local Obj = require "scenes.levels.entities"
 
+local Sti   = require "libs.sti"
+local Bump  = require "libs.bump"
+
 -- INIT FUNCTIONS
 -- All functions to init the world and the map