cleaned the code a bit

main.lua

@@ -41,6 +41,18 @@ local current = { }
 
 local tempAttached = nil
 
+function mirrorCollider(collider, side)
+  current.x, current.y = collider:getPosition()
+  if side == 'LEFT' then
+    current.x = current.x - CONST_SIDES.LEFT[1]
+    current.x = CONST_SIDES.RIGHT[1] + CONST_SIDES.WIDTH - current.x
+  else
+    current.x = current.x - CONST_SIDES.RIGHT[1]
+    current.x = CONST_SIDES.LEFT[1] + CONST_SIDES.WIDTH - current.x
+  end
+  collider:setPosition(current.x, current.y)
+end
+
 function love.load()
   love.window.setMode(512, 512)
 
@@ -88,40 +100,16 @@ function love.update(dt)
 
     -- first, let's take care of the attached crates
     for key in pairs(crates:getAttached()) do
-      current.x, current.y = crates.attached[key].collider:getPosition()
+      mirrorCollider(crates.attached[key].collider, magnet.side)
-
-      if magnet.side == 'LEFT' then
-        current.x = current.x - CONST_SIDES.LEFT[1]
-
-        -- then, we need to mirror it onto the other side
-        current.x = CONST_SIDES.RIGHT[1] + CONST_SIDES.WIDTH - current.x
-      else
-        current.x = current.x - CONST_SIDES.RIGHT[1]
-
-        current.x = CONST_SIDES.LEFT[1] + CONST_SIDES.WIDTH - current.x
-      end
-
-      crates.attached[key].collider:setPosition(current.x, current.y)
     end
 
-    current.x, current.y = magnet.collider:getPosition()
+    mirrorCollider(magnet.collider, magnet.side)
 
-    -- i want a relative x position, for easier use, so first
-    -- let's substract the x position depending on the side
     if magnet.side == 'LEFT' then
-      current.x = current.x - CONST_SIDES.LEFT[1]
-
-      -- then, we need to mirror it onto the other side
-      current.x = CONST_SIDES.RIGHT[1] + CONST_SIDES.WIDTH - current.x
       magnet.side = 'RIGHT'
     else
-      current.x = current.x - CONST_SIDES.RIGHT[1]
-
-      current.x = CONST_SIDES.LEFT[1] + CONST_SIDES.WIDTH - current.x
       magnet.side = 'LEFT'
     end
-
-    magnet.collider:setPosition(current.x, current.y)
   else
     if input:down('moveUp') or input:down('moveLeft') or input:down('moveRight') or input:down('moveDown') then
       if input:down('moveUp') then velocity[2] = -player.maxSpeed.y