Menus & Popovers - Learn SpriteBuilder for iOS Game Development - page 194

in Figure 6-8 will appear, where you should enter resumeGameDidEnd in the Selector
field.
Tip The sound effects keyframes are also added by Option-clicking on the
sound-effects segment, and they're editable by double-clicking a keyframe.
Figure 6-8 . Editing a Callbacks keyframe
As with other keyframes, you can also right-click a Callbacks or Sound effects keyframe
to Cut , Copy , or Delete it. You can also delete keyframes by selecting a keyframe with a
left-click and pressing the Backspace key.
Note If you receive a message that says “the root node cannot be removed”
when trying to cut or delete a Callbacks or Sound effects keyframe, just deselect
the root node by selecting any other node or by clicking on the stage, outside
any node, to deselect the currently selected node(s).
You've already added the necessary code to handle resuming a game in Listing 6-9 . The
shouldResumeGame method runs the resume game Timeline, which in turn will even-
tually run the resumeGameDidEnd selector.
If you build and run the app now, pause the game, and then click resume, the pause menu
popover will disappear after two seconds and the game continues.
You can also restart the level and exit to the menu now, as the SceneManager will
change scenes. (See Listing 6-13 .) As an exercise for you, you may want to add another
SceneManager class method that presents the GameScene but without using a trans-
ition. Then update the shouldRestartGame method to use your new SceneMan-
ager method.