fix(actor2D): let hitboxes handle themselves

gamecore/modules/world/actors/actor2D.lua

@@ -39,7 +39,7 @@ end
 
 function Actor2D:destroy()
   self.world:removeActor(self)
-  self.world:removeBody(self.mainHitbox)
+  self.mainHitbox:destroy()
   self.isDestroyed = true
 end
 
@@ -262,7 +262,6 @@ end
 
 function Actor2D:initMainHitbox()
   self.mainHitbox = Hitbox(self, self.type, 0, 0, self.w, self.h, self.isSolid)
-  self.world:registerBody(self.mainHitbox)
 end
 
 function Actor2D:addHitbox(name, type, ox, oy, w, h, isSolid)
@@ -271,7 +270,6 @@ function Actor2D:addHitbox(name, type, ox, oy, w, h, isSolid)
   else
     local hitbox = Hitbox(self, type, ox, oy, w, h, isSolid)
     self.hitboxes[name] = hitbox
-    self.world:registerBody(self.hitboxes[name])
     return hitbox
   end
 end
@@ -307,14 +305,14 @@ end
 
 function Actor2D:removeHitbox(name)
   if (self.hitboxes[name] ~= nil) then
-    self.world:removeBody(self.hitboxes[name])
+    self.hitboxes[name]:destroy()
     self.hitboxes[name] = nil
   end
 end
 
 function Actor2D:purgeHitbox()
   for k,v in pairs(self.hitboxes) do
-    self.world:removeBody(v)
+    v:destroy()
   end
   self.hitboxes = {}
 end

gamecore/modules/world/actors/utils/hitbox2D.lua

@@ -40,6 +40,7 @@ function Hitbox2D:new(owner, type, ox, oy, w, h, isSolid)
   self.isSolid  = isSolid
 
   self:setDebugColor(0,0,0)
+  self:register()
 end
 
 function Hitbox2D:modify(ox, oy, w, h)
@@ -57,6 +58,14 @@ function Hitbox2D:setDebugColor(r,g,b)
   self.debug.b = b
 end
 
+function Hitbox2D:register()
+  self.world:registerBody(self)
+end
+
+function Hitbox2D:destroy()
+  self.world:removeBody(self)
+end
+
 -- COORDINATE FUNCTIONS
 -- Handle Hitbox position