How do you click on object and then unclick that onbject to then click on another object?

Question

I am building a simple game in which you must click on a square to activate it, meaning when you click on it you have control of its movement. I then want to be able to click on the square again so that you don't have control of it, and then you can click on another object in the game. What is the code to allow this? I believe its an eventListener for a mouse event.

Answer 1

Clicking either way involves assigning an event listener for the CLICK event, as in...
yourSquare.addEventListener(MouseEvent.CLICK, manageControl);
wherein bth the name of the square that I used (yourSquare) and the name of the event handler function (manageControl) are named however you want them named.  The real work gets done in the event handler function...
function manageControl(evt:MouseEvent):void {
     // this is where your code will go to determine if the square has been clicked to control it versus clicked to give up control.