// Draw lines to the connected game objects that a script has.
// if the target object doesnt have any game objects attached
// then it draws a line from the object to 0,0,0.

@CustomEditor (ConnectedObjects)
class ConnectLineHandle extends Editor {

function OnSceneGUI () {
for(var i = 0; i < target.objs.Length; i++)
if(target.objs[i])
Handles.DrawLine(target.transform.position,
target.objs[i].transform.position);
else
Handles.DrawLine(target.transform.position, Vector3.zero);
}
}

//ConnectedObjects.js

var objs : GameObject[] = null;