How do I connect two object or back and unconnect

Hi! How to make connections in this style:

and unconnect when you touch previous item? <img src="{SMILIES_PATH}/icon_e_wink.gif" alt=";)" title="Wink">

Create a sprite that is just a horizontal line.

Spawn the line from the "source" object

Then set its width to the distance between both objects e.g. distance(source.x, source.y, dest.x, dest.y)

Then set its angle of source object towards the "dest" object

You can see a tutorial for a lazer with the affect here:

scirra.com

/tutorials/588/how-to-make-a-laser-for-tds

For "untouch" just destroy the line object.

Ok, but how to delete only last line when i touch previous item?

keep track of last line by a global variable UID