modules/world: put the register and initPhysics functions in BaseActor

gamecore/modules/world/actors/actor2D.lua

@@ -32,8 +32,6 @@ local Actor2D = BaseActor:extend()
 function Actor2D:new(world, type, x, y, w, h, isSolid)
   self:initHitbox(x, y, w, h)
   Actor2D.super.new(self, world, type, isSolid)
-  self:initPhysics()
-  self:register()
 end
 
 -- MOVEMENT FUNCTIONS

gamecore/modules/world/actors/baseactor.lua

@@ -38,8 +38,10 @@ function BaseActor:new(world, type, isSolid)
   self:initKeys()
   self:initTimers()
   self:setSprite()
+  self:initPhysics()
 
   self:setDebugColor(1, 1, 1)
+  self:register()
 end
 
 function BaseActor:setManagers(world)