Drag and Drop game with ActionScript 3 - Page 5

Some Bonus

If you take a look around the source files you'll find some nice AS3 bonus material.
Besides the DraggableObject.as and Game.as Class files you've already seen, there is also Main.as.
This Class is responsible for the game control: start, end; show success and failure screens, ...

In Game.as there is also a countdown timer: the game should be completed in less than one minute otherwise you lose. This is done using the Timer() Class.

Both the DraggableObject and Game Classes have custom events being dispatched:

// game successfully finished
dispatchEvent(new Event(GAME_SUCCESS));

// time run out
dispatchEvent(new Event(GAME_FAILURE));

// object released
dispatchEvent(new Event(STOP_DRAGGING));

In the Main Class the game object listens for two:

// when the timer / countdown finishes, you lost
game.addEventListener(Game.GAME_FAILURE, gameFailure);
// game successfully finished
game.addEventListener(Game.GAME_SUCCESS, gameSuccess);

And in the Game Class, each of the draggable objects listen for one as well:

rabbit_draggable.addEventListener(DraggableObject.STOP_DRAGGING, stopDragging);

GAME_SUCCESS, GAME_FAILURE and STOP_DRAGGING are just static constants of the String data type. They are used to identify the Event. As they are public they are accessible outside the Class, e.g.:

Game.GAME_SUCCESS