Menus & Popovers - Learn SpriteBuilder for iOS Game Development - page 201

start buttons should have their Selector fields set to shouldExitGame and
shouldRestartGame , respectively. That's what's important for functionality, the rest
is just visual appeal. I'm not saying that visuals aren't important too, but they're not as
important for continuing with the topic.
But you are free to spend some time to animate the nodes on the menu shown in Figure
6-10 . For instance, why not animate the Color property of the Game over label? Select
the Game over label node, and then add multiple Color keyframes by pressing C . Move
the Timeline Cursor onto each keyframe and, on the Item Properties tab, click the colored
rectangle next to the Color property, which presents the OS X color-picker dialog to let
you pick a color. Right-click the individual Keyframe Segments , and change the easing
modes to whatever you like.
Figure 6-10 . What the Game Over menu might look like
Run this animation and you'll weep tears of delight. Such vivid colors. But enough with
the sentimentalities. Art really isn't my strong point, so let's move on to kill the player.
Showing the “Game Over” Popover
Go back to Xcode, and open GameScene.m . Locate the ccPhysicsCollision
methods, and below the last one, add the collision method shown in Listing 6-17 .
Listing 6-17 . There will not be blood: responding to a collision between player and saw
-(BOOL) ccPhysicsCollisionBegin:(CCPhysicsCollisionPair
*)pair
player:(CCNode *)player
saw:(CCNode *)saw