Open our Xcode project if it's not already open.

Create a new Objective-C class inside the GameScenes group.

Call this class GameOver it should be a subclass of Scene.

Switch to the GameOver.h file.

Using the following line of code, add a property called message:

@property SPTextField *message;

Using the following line of code, add another property to indicate whether the game was won:

@property (nonatomic) BOOL gameWon;

Switch to GameOver.m.

Import the SceneDirector.h, Assets.h, and the World.h files, as shown in the following code:

#import "SceneDirector.h"
#import "Assets.h"
#import "World.h"

Add an initializer for this new scene, as shown in the following code:

-(id) init
{
    if ((self = [super init])) {
        
        SPImage *background = [SPImage imageWithTexture:[Assets texture:@"water.png"]];
        
        _message = [SPTextField textFieldWithWidth:Sparrow.stage.width height:Sparrow.stage...