Abstracted a lot of GameLayer's functionality out

In order to prepare for tutorial mode (and eventually, the other game modes), a lot of GameLayer's functionality (reading the accelerometer, moving the cart, moving falling objects, reacting to collisions…) has been abstracted out to FallingObject and subclasses of FallingObject, as well as a new Cart class, and GameMode, a new superclass of GameLayer. The only things that were not abstracted out that probably will be in the future are the pause functionality and the tutorial bubble functionality (which will in fact be moved to the tutorial mode class).

A lot of work was also done to cut down on compiler warnings and a lot of #imports were moved from header files to implementation files because I realized THAT'S HOW YOU'RE SUPPOSED TO DO IT.

Refs #193

23 files changed, 374 insertions, 178 deletions

@@ -84,6 +84,9 @@
                 50F4144910692EE7002A0D5E /* Default.png in Resources */ = {isa = PBXBuildFile; fileRef = 50F4144410692EE7002A0D5E /* Default.png */; };
                 50F4144A10692EE7002A0D5E /* fps_images.png in Resources */ = {isa = PBXBuildFile; fileRef = 50F4144510692EE7002A0D5E /* fps_images.png */; };
                 50F4144B10692EE7002A0D5E /* Icon.png in Resources */ = {isa = PBXBuildFile; fileRef = 50F4144610692EE7002A0D5E /* Icon.png */; };
+                6C0C140E13F1C3EC003A31B2 /* ValuableObject.m in Sources */ = {isa = PBXBuildFile; fileRef = 6C0C140D13F1C3EC003A31B2 /* ValuableObject.m */; };
+                6C0C141113F2099B003A31B2 /* Cart.m in Sources */ = {isa = PBXBuildFile; fileRef = 6C0C141013F2099B003A31B2 /* Cart.m */; };
+                6C0C141413F20E98003A31B2 /* GameMode.m in Sources */ = {isa = PBXBuildFile; fileRef = 6C0C141313F20E98003A31B2 /* GameMode.m */; };
                 6C29041013EAEB590032DA0F /* TutorialBubble.m in Sources */ = {isa = PBXBuildFile; fileRef = 6C29040F13EAEB590032DA0F /* TutorialBubble.m */; };
                 6C29041213EAEC8A0032DA0F /* framestuff.png in Resources */ = {isa = PBXBuildFile; fileRef = 6C29041113EAEC8A0032DA0F /* framestuff.png */; };
                 6C5179C613DF3839006F1F38 /* Morning1.png in Resources */ = {isa = PBXBuildFile; fileRef = 6C5179C513DF3839006F1F38 /* Morning1.png */; };
@@ -328,7 +331,6 @@
                 3F7D0F4913D8F17C00B6CE14 /* highscores2.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = highscores2.png; sourceTree = "<group>"; };
                 3F7D0F4A13D8F17C00B6CE14 /* newgame.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = newgame.png; sourceTree = "<group>"; };
                 3F7D0F4B13D8F17C00B6CE14 /* newgame2.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = newgame2.png; sourceTree = "<group>"; };
-                3F8394AC13D72E2C0059AEE8 /* ValuableObject.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ValuableObject.h; sourceTree = "<group>"; };
                 3F8394F213D732330059AEE8 /* pause.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = pause.png; sourceTree = "<group>"; };
                 3F8394F413D7328E0059AEE8 /* pause2.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = pause2.png; sourceTree = "<group>"; };
                 3F83955113D739B10059AEE8 /* MainMenuLayer.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MainMenuLayer.h; sourceTree = "<group>"; };
@@ -373,6 +375,12 @@
                 50F4144510692EE7002A0D5E /* fps_images.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = fps_images.png; sourceTree = "<group>"; };
                 50F4144610692EE7002A0D5E /* Icon.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = Icon.png; sourceTree = "<group>"; };
                 50F4144710692EE7002A0D5E /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+                6C0C140C13F1C3EC003A31B2 /* ValuableObject.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ValuableObject.h; sourceTree = "<group>"; };
+                6C0C140D13F1C3EC003A31B2 /* ValuableObject.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ValuableObject.m; sourceTree = "<group>"; };
+                6C0C140F13F2099B003A31B2 /* Cart.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = Cart.h; sourceTree = "<group>"; };
+                6C0C141013F2099B003A31B2 /* Cart.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = Cart.m; sourceTree = "<group>"; };
+                6C0C141213F20E98003A31B2 /* GameMode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = GameMode.h; sourceTree = "<group>"; };
+                6C0C141313F20E98003A31B2 /* GameMode.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GameMode.m; sourceTree = "<group>"; };
                 6C29040E13EAEB590032DA0F /* TutorialBubble.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = TutorialBubble.h; sourceTree = "<group>"; };
                 6C29040F13EAEB590032DA0F /* TutorialBubble.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = TutorialBubble.m; sourceTree = "<group>"; };
                 6C29041113EAEC8A0032DA0F /* framestuff.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = framestuff.png; sourceTree = "<group>"; };
@@ -656,14 +664,13 @@
                 2D500B1D0D5A766B00DBA0E3 /* Classes */ = {
                         isa = PBXGroup;
                         children = (
+                                6C0C141513F211C7003A31B2 /* Game Modes */,
                                 6C5887E313EE3ED900B5A80A /* Items */,
                                 E0F81035120A173C005866B8 /* GameConfig.h */,
                                 E0F81036120A173C005866B8 /* RootViewController.h */,
                                 E0F81037120A173C005866B8 /* RootViewController.m */,
                                 1F3B9A2C0EF2145700286867 /* Cart_CollectAppDelegate.h */,
                                 507022A2107672FA00393637 /* Cart_CollectAppDelegate.m */,
-                                3FE79CD213D4DE37001A6B93 /* GameLayer.h */,
-                                3FE79CD313D4DE37001A6B93 /* GameLayer.m */,
                                 3F6C7EE713D6377D00C038FE /* GameOverLayer.h */,
                                 3F6C7EE813D6377D00C038FE /* GameOverLayer.m */,
                                 3F83955213D739B10059AEE8 /* MainMenuLayer.m */,
@@ -821,6 +828,17 @@
                         path = Resources;
                         sourceTree = "<group>";
                 };
+                6C0C141513F211C7003A31B2 /* Game Modes */ = {
+                        isa = PBXGroup;
+                        children = (
+                                6C0C141213F20E98003A31B2 /* GameMode.h */,
+                                6C0C141313F20E98003A31B2 /* GameMode.m */,
+                                3FE79CD213D4DE37001A6B93 /* GameLayer.h */,
+                                3FE79CD313D4DE37001A6B93 /* GameLayer.m */,
+                        );
+                        name = "Game Modes";
+                        sourceTree = "<group>";
+                };
                 6C5887E313EE3ED900B5A80A /* Items */ = {
                         isa = PBXGroup;
                         children = (
@@ -834,7 +852,10 @@
                                 3F6C7C7213D5E57100C038FE /* OneUp.m */,
                                 3F6C7EE213D636CF00C038FE /* Rock.h */,
                                 3F6C7EE313D636CF00C038FE /* Rock.m */,
-                                3F8394AC13D72E2C0059AEE8 /* ValuableObject.h */,
+                                6C0C140C13F1C3EC003A31B2 /* ValuableObject.h */,
+                                6C0C140D13F1C3EC003A31B2 /* ValuableObject.m */,
+                                6C0C140F13F2099B003A31B2 /* Cart.h */,
+                                6C0C141013F2099B003A31B2 /* Cart.m */,
                         );
                         name = Items;
                         sourceTree = "<group>";
@@ -1341,6 +1362,9 @@
                                 3F03221613D78F8C00E6A708 /* HighscoreListController.m in Sources */,
                                 3F03221913D7904E00E6A708 /* Highscore.m in Sources */,
                                 6C29041013EAEB590032DA0F /* TutorialBubble.m in Sources */,
+                                6C0C140E13F1C3EC003A31B2 /* ValuableObject.m in Sources */,
+                                6C0C141113F2099B003A31B2 /* Cart.m in Sources */,
+                                6C0C141413F20E98003A31B2 /* GameMode.m in Sources */,
                         );
                         runOnlyForDeploymentPostprocessing = 0;
                 };
@@ -7,10 +7,9 @@
 //
 
 #import <Foundation/Foundation.h>
-#import "FallingObject.h"
 #import "ValuableObject.h"
 
-@interface Bottle : FallingObject <ValuableObject> {
+@interface Bottle : ValuableObject {
 
 }
 
@@ -0,0 +1,22 @@
+//
+//  Cart.h
+//  Cart Collect
+//
+//  Created by Starla Insigna on 8/9/11.
+//  Copyright 2011 Four Island. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import "cocos2d.h"
+
+@interface Cart : NSObject {
+    CCSprite* sprite;
+    float accelX;
+}
+
+@property (readonly) CCSprite* sprite;
+- (id)initWithSprite:(CCSprite*)sprite;
+- (void)tick;
+- (void)accelerometer:(UIAccelerometer*)accelerometer didAccelerate:(UIAcceleration*)acceleration;
+
+@end
@@ -0,0 +1,45 @@
+//
+//  Cart.m
+//  Cart Collect
+//
+//  Created by Starla Insigna on 8/9/11.
+//  Copyright 2011 Four Island. All rights reserved.
+//
+
+#import "Cart.h"
+
+@implementation Cart
+
+@synthesize sprite;
+
+- (id)initWithSprite:(CCSprite*)m_sprite
+{
+    self = [super init];
+    
+    if (nil != self)
+    {
+        sprite = m_sprite;
+    }
+    
+    return self;
+}
+
+- (void)tick
+{
+    // Move the cart based on acceleration gathered from accelerometer
+        sprite.position = ccp(MIN(MAX(sprite.position.x+accelX, 16),464), sprite.position.y);
+}
+
+- (void)accelerometer:(UIAccelerometer*)accelerometer didAccelerate:(UIAcceleration*)acceleration
+{
+    static float prevY=0;
+        
+#define kFilterFactor 0.05f
+        
+        float accelY = -((float) acceleration.y * kFilterFactor + (1- kFilterFactor)*prevY);
+        
+        prevY = accelY;
+        accelX = accelY * 750;
+}
+
+@end
@@ -7,10 +7,9 @@
 //
 
 #import <Foundation/Foundation.h>
-#import "FallingObject.h"
 #import "ValuableObject.h"
 
-@interface Cherry : FallingObject <ValuableObject> {
+@interface Cherry : ValuableObject {
 
 }
 
@@ -17,5 +17,8 @@
 @property (readonly) CCSprite* sprite;
 @property (readonly) int weight;
 - (id)init;
+- (BOOL)tick;
+- (void)collideWithCart;
+- (void)collideWithFloor;
 
 @end
@@ -7,7 +7,7 @@
 //
 
 #import "FallingObject.h"
-
+#import "GameMode.h"
 
 @implementation FallingObject
 
@@ -25,6 +25,54 @@
         return self;
 }
 
+- (BOOL)tick
+{
+    GameMode* gameLayer = ((GameMode*) sprite.parent);
+    
+    // Move objects down
+    sprite.position = ccp(sprite.position.x, sprite.position.y-weight);
+        
+    // Cart collision detection
+    CGSize first = [gameLayer.cart.sprite boundingBox].size;
+    CGSize second = [sprite boundingBox].size;
+    
+    if (gameLayer.cart.sprite.position.x > (sprite.position.x - second.width/2 - first.width/2))
+    {
+        if (gameLayer.cart.sprite.position.x < (sprite.position.x + second.width/2 + first.width/2))
+        {
+            if (gameLayer.cart.sprite.position.y > (sprite.position.y - second.height/2 - first.height/2))
+            {
+                if (gameLayer.cart.sprite.position.y < (sprite.position.y + second.height/2 + first.height/2))
+                {
+                    [self collideWithCart];
+                    
+                    return YES;
+                }
+            }
+        }
+    }
+    
+    // Collision detection with floor
+    if (sprite.position.y - (sprite.contentSize.height/2) < 0)
+    {
+        [self collideWithFloor];
+        
+        return YES;
+    }
+    
+    return NO;
+}
+
+- (void)collideWithCart
+{
+
+}
+
+- (void)collideWithFloor
+{
+
+}
+
 - (void)dealloc
 {
     [sprite release];
@@ -8,30 +8,13 @@
 
 #import <Foundation/Foundation.h>
 #import "cocos2d.h"
-#import "FallingObject.h"
-#import "Cherry.h"
-#import "Bottle.h"
-#import "OneUp.h"
-#import "Rock.h"
-#import "GameOverLayer.h"
-#import "ValuableObject.h"
-#import "CocosDenshion.h"
-#import "SimpleAudioEngine.h"
 #import "TutorialBubble.h"
-#import "MainMenuLayer.h"
+#import "GameMode.h"
 
-#define GAME_SCENE 436
-#define GAME_LAYER 437
-
-@interface GameLayer : CCLayer {
-        NSMutableSet* objects;
-        float accelX;
+@interface GameLayer : GameMode {
         CCLabelBMFont* scoreLabel;
         CCLabelBMFont* livesLabel;
-        int score;
-        int lives;
         float addSpeed;
-    CCSprite* cartSprite;
     TutorialBubble* currentTutorial;
     
     CCLayerColor* shadedLayer;
@@ -39,9 +22,7 @@
 }
 
 @property (nonatomic,retain) TutorialBubble* currentTutorial;
-+ (CCScene*)scene;
 - (id)init;
-- (void)updateLabels;
 - (void)pause;
 - (void)unpause;
 - (void)mainmenu;
@@ -7,109 +7,29 @@
 //
 
 #import "GameLayer.h"
-
+#import "FallingObject.h"
+#import "Cherry.h"
+#import "Bottle.h"
+#import "OneUp.h"
+#import "Rock.h"
+#import "GameOverLayer.h"
+#import "SimpleAudioEngine.h"
+#import "MainMenuLayer.h"
 
 @implementation GameLayer
 
 @synthesize currentTutorial;
 
-+ (CCScene*)scene
-{
-        CCScene* scene = [CCScene node];
-        
-        CCLayerColor* backgroundLayer = [CCLayerColor layerWithColor:ccc4(255, 255, 255, 255)];
-        [scene addChild:backgroundLayer];
-        
-        GameLayer* layer = [GameLayer node];
-    layer.tag = GAME_LAYER;
-        [scene addChild:layer];
-        
-        scene.tag = GAME_SCENE;
-        
-        return scene;
-}
-
 - (void)tick:(ccTime)dt
 {
-        // Move the cart based on acceleration gathered from accelerometer
-        cartSprite.position = ccp(MIN(MAX(cartSprite.position.x+accelX, 16),464), cartSprite.position.y);
-        
         int lastScore = score;
         
-        for (FallingObject* object in objects)
-        {
-                // Move objects down
-                object.sprite.position = ccp(object.sprite.position.x, object.sprite.position.y-object.weight);
-        
-        // Cart collision detection
-        CGSize first = [cartSprite boundingBox].size;
-        CGSize second = [object.sprite boundingBox].size;
-        
-        if (cartSprite.position.x > (object.sprite.position.x - second.width/2 - first.width/2))
-        {
-            if (cartSprite.position.x < (object.sprite.position.x + second.width/2 + first.width/2))
-            {
-                if (cartSprite.position.y > (object.sprite.position.y - second.height/2 - first.height/2))
-                {
-                    if (cartSprite.position.y < (object.sprite.position.y + second.height/2 + first.height/2))
-                    {
-                        [object retain];
-                        [objects removeObject:object];
-                        
-                        // If a cart collides with an object, it's going to vanish no matter what
-                        [object.sprite.parent removeChild:object.sprite cleanup:YES];
-                        
-                        NSString* audioFile = nil;
-                        if ([object isKindOfClass:[OneUp class]])
-                        {
-                            audioFile = [[NSBundle mainBundle] pathForResource:@"1up" ofType:@"wav"];
-                            lives++;
-                        } else if ([object isKindOfClass:[Rock class]])
-                        {
-                            audioFile = [[NSBundle mainBundle] pathForResource:@"Damage1" ofType:@"wav"];
-                            lives--;
-                        } else if ([object conformsToProtocol:@protocol(ValuableObject)]) {
-                            audioFile = [[NSBundle mainBundle] pathForResource:@"Item1" ofType:@"wav"];
-                            score += [((FallingObject<ValuableObject>*)object) pointValue];
-                        }
-                        
-                        if (audioFile != nil)
-                        {
-                            [[SimpleAudioEngine sharedEngine] playEffect:audioFile];
-                        }
-                        
-                        [self updateLabels];
-                        
-                        continue; // Don't check for collision with floor
-                    }
-                }
-            }
-        }
-        
-                // Collision detection with floor
-        if (object.sprite.position.y - (object.sprite.contentSize.height/2) < 0)
-                {
-            [object retain];
-            [objects removeObject:object];
-            
-                        [object.sprite.parent removeChild:object.sprite cleanup:YES];
-                        
-                        if ([object conformsToProtocol:@protocol(ValuableObject)])
-                        {
-                                NSString* audioFile = [[NSBundle mainBundle] pathForResource:@"Damage1" ofType:@"wav"];
-                [[SimpleAudioEngine sharedEngine] playEffect:audioFile];
-                                
-                                lives--;
-                                
-                                [self updateLabels];
-                        }
-                }       
-        }
+        [super tick:dt];
         
         if (lives == 0)
         {
-        [self unschedule:@selector(randomlyAddObject:)];
-        [self unschedule:@selector(tick:)];
+        [self unscheduleAllSelectors];
+
         [[CCDirector sharedDirector] replaceScene:[CCTransitionSlideInT transitionWithDuration:1.5f scene:[GameOverLayer sceneWithScore:score]]];
         } else if (score > lastScore)
         {
@@ -237,20 +157,12 @@
                 backgroundImage.position = ccp(240, 160);
                 [self addChild:backgroundImage z:0];
                 
-                isAccelerometerEnabled_ = YES;
-                
-                //cart = [[Cart alloc] init];
-        cartSprite = [CCSprite spriteWithFile:@"cart.png"];
-                cartSprite.position = ccp(winWidth/2, 22);
-                cartSprite.scale = cartScale;
-                [self addChild:cartSprite];
-                
-                objects = [[NSMutableSet alloc] init];
-                
-                score = 0;
-                lives = 3;
-                
-                scoreLabel = [CCLabelBMFont labelWithString:@"Score: 0" fntFile:@"helvetica2.fnt"];
+                cart = [[Cart alloc] initWithSprite:[CCSprite spriteWithFile:@"cart.png"]];
+                cart.sprite.position = ccp(winWidth/2, 22);
+                cart.sprite.scale = cartScale;
+                [self addChild:cart.sprite];
+        
+        scoreLabel = [CCLabelBMFont labelWithString:@"Score: 0" fntFile:@"helvetica2.fnt"];
                 scoreLabel.position = ccp(50, 300);
                 [self addChild:scoreLabel];
                 
@@ -258,6 +170,9 @@
                 livesLabel.position = ccp(50, 280);
                 [self addChild:livesLabel];
                 
+                score = 0;
+                lives = 3;
+                
                 CCMenuItemImage* pauseButton = [CCMenuItemImage itemFromNormalImage:@"pause2.png" selectedImage:@"pause.png" target:self selector:@selector(pause)];
                 CCMenu* pauseMenu = [CCMenu menuWithItems:pauseButton, nil];
                 [pauseMenu setPosition:ccp(480-8-16, 320-8-16)];
@@ -273,27 +188,21 @@
 {
         [super onEnter];
         
-        [[UIAccelerometer sharedAccelerometer] setUpdateInterval:(1.0 / 60)];
-    [self schedule:@selector(tick:) interval:1.0f/60.0f];
     [self schedule:@selector(randomlyAddObject:) interval:addSpeed];
 }
 
-- (void)accelerometer:(UIAccelerometer*)accelerometer didAccelerate:(UIAcceleration*)acceleration
-{       
-        static float prevY=0;
-        
-#define kFilterFactor 0.05f
-        
-        float accelY = -((float) acceleration.y * kFilterFactor + (1- kFilterFactor)*prevY);
-        
-        prevY = accelY;
-        accelX = accelY * 750;
+- (void)setScore:(int)m_score
+{
+    score = m_score;
+    
+    [scoreLabel setString:[NSString stringWithFormat:@"Score: %d", score]];
 }
 
-- (void)updateLabels
+- (void)setLives:(int)m_lives
 {
-        [scoreLabel setString:[NSString stringWithFormat:@"Score: %d", score]];
-        [livesLabel setString:[NSString stringWithFormat:@"Lives: %d", lives]];
+    lives = m_lives;
+    
+    [livesLabel setString:[NSString stringWithFormat:@"Lives: %d", lives]];
 }
 
 - (void)pause
@@ -0,0 +1,27 @@
+//
+//  GameMode.h
+//  Cart Collect
+//
+//  Created by Starla Insigna on 8/9/11.
+//  Copyright 2011 Four Island. All rights reserved.
+//
+
+#import "CCLayer.h"
+#import "Cart.h"
+
+#define GAME_SCENE 436
+#define GAME_LAYER 437
+
+@interface GameMode : CCLayer {
+    NSMutableSet* objects;
+        int score;
+        int lives;
+    Cart* cart;
+}
+
+@property (readonly) Cart* cart;
+@property (assign) int score;
+@property (assign) int lives;
+- (void)tick:(ccTime)dt;
+
+@end
@@ -0,0 +1,78 @@
+//
+//  GameMode.m
+//  Cart Collect
+//
+//  Created by Starla Insigna on 8/9/11.
+//  Copyright 2011 Four Island. All rights reserved.
+//
+
+#import "GameMode.h"
+#import "FallingObject.h"
+
+@implementation GameMode
+
+@synthesize cart, score, lives;
+
++ (CCScene*)scene
+{
+        CCScene* scene = [CCScene node];
+                
+        GameMode* layer = [self node];
+    layer.tag = GAME_LAYER;
+        [scene addChild:layer];
+        
+        scene.tag = GAME_SCENE;
+        
+        return scene;
+}
+
+- (id)init
+{
+    self = [super init];
+    
+    if (nil != self)
+    {
+        isAccelerometerEnabled_ = YES;
+        
+        objects = [[NSMutableSet alloc] init];
+    }
+    
+    return self;
+}
+
+- (void)accelerometer:(UIAccelerometer*)accelerometer didAccelerate:(UIAcceleration*)acceleration
+{       
+        [cart accelerometer:accelerometer didAccelerate:acceleration];
+}
+
+- (void)onEnter
+{
+    [super onEnter];
+    
+    [[UIAccelerometer sharedAccelerometer] setUpdateInterval:(1.0 / 60)];
+    [self schedule:@selector(tick:) interval:1.0f/60.0f];
+}
+
+- (void)tick:(ccTime)dt
+{
+    [cart tick];
+    
+    for (FallingObject* object in objects)
+        {
+        if ([object tick])
+        {
+            [object retain];
+            [self removeChild:object.sprite cleanup:YES];
+            [objects removeObject:object];
+        }
+    }
+}
+
+- (void)dealloc
+{
+    [objects release];
+    [cart release];
+    [super dealloc];
+}
+
+@end
@@ -8,11 +8,6 @@
 
 #import <Foundation/Foundation.h>
 #import "cocos2d.h"
-#import "Cart_CollectAppDelegate.h"
-#import <sqlite3.h>
-#import "cocoslive.h"
-
-@class MainMenuLayer;
 
 @interface GameOverLayer : CCLayer <UITextFieldDelegate, UIAlertViewDelegate> {
     UILabel* scoreField;
@@ -7,7 +7,10 @@
 //
 
 #import "GameOverLayer.h"
-
+#import "Cart_CollectAppDelegate.h"
+#import <sqlite3.h>
+#import "cocoslive.h"
+#import "MainMenuLayer.h"
 
 @implementation GameOverLayer
 
@@ -7,9 +7,6 @@
 //
 
 #import <Foundation/Foundation.h>
-#import <sqlite3.h>
-#import "Cart_CollectAppDelegate.h"
-#import "cocoslive.h"
 
 @interface Highscore : NSObject {
         NSString* name;
@@ -8,7 +8,6 @@
 
 #import "Highscore.h"
 
-
 @implementation Highscore
 
 @synthesize name, score, date;
@@ -7,9 +7,6 @@
 //
 
 #import <UIKit/UIKit.h>
-#import "Highscore.h"
-#import "cocoslive.h"
-#import "RootViewController.h"
 
 @interface HighscoreListController : UITableViewController {
         UINavigationBar* navigationBar;
@@ -7,7 +7,11 @@
 //
 
 #import "HighscoreListController.h"
-
+#import "Highscore.h"
+#import "RootViewController.h"
+#import "cocoslive.h"
+#import <sqlite3.h>
+#import "Cart_CollectAppDelegate.h"
 
 @implementation HighscoreListController
 
@@ -290,9 +294,10 @@
 
 - (void)back
 {
-        RootViewController* viewController = [[[UIApplication sharedApplication] delegate] viewController];
-        [[[[UIApplication sharedApplication] delegate] window] setRootViewController:nil];
-    [[[[UIApplication sharedApplication] delegate] window] addSubview:viewController.view];
+    Cart_CollectAppDelegate* appDelegate = ((Cart_CollectAppDelegate*) [[UIApplication sharedApplication] delegate]);
+        RootViewController* viewController = [appDelegate viewController];
+        [[appDelegate window] setRootViewController:nil];
+    [[appDelegate window] addSubview:viewController.view];
 }
 
 - (void)switchLists:(id)sender
@@ -8,9 +8,6 @@
 
 #import <Foundation/Foundation.h>
 #import "cocos2d.h"
-#import "HighscoreListController.h"
-
-@class GameLayer;
 
 @interface MainMenuLayer : CCLayer {
 
@@ -7,7 +7,9 @@
 //
 
 #import "MainMenuLayer.h"
-
+#import "HighscoreListController.h"
+#import "GameLayer.h"
+#import "Cart_CollectAppDelegate.h"
 
 @implementation MainMenuLayer
 
@@ -61,7 +63,8 @@
 - (void)highscores
 {
         HighscoreListController* listController = [[HighscoreListController alloc] initWithStyle:UITableViewStylePlain];
-        [[[[UIApplication sharedApplication] delegate] window] setRootViewController:listController];
+    Cart_CollectAppDelegate* appDelegate = ((Cart_CollectAppDelegate*) [[UIApplication sharedApplication] delegate]);
+        [[appDelegate window] setRootViewController:listController];
     [listController release];
 }
 
@@ -7,7 +7,8 @@
 //
 
 #import "OneUp.h"
-
+#import "GameMode.h"
+#import "SimpleAudioEngine.h"
 
 @implementation OneUp
 
@@ -24,4 +25,12 @@
         return self;
 }
 
+- (void)collideWithCart
+{
+    GameMode* gameLayer = ((GameMode*) sprite.parent);
+    [gameLayer setLives:gameLayer.lives+1];
+    
+    [[SimpleAudioEngine sharedEngine] playEffect:[[NSBundle mainBundle] pathForResource:@"1up" ofType:@"wav"]];
+}
+
 @end
@@ -7,7 +7,8 @@
 //
 
 #import "Rock.h"
-
+#import "GameMode.h"
+#import "SimpleAudioEngine.h"
 
 @implementation Rock
 
@@ -24,4 +25,13 @@
         return self;
 }
 
+- (void)collideWithCart
+{
+    GameMode* gameLayer = ((GameMode*) sprite.parent);
+    [gameLayer setLives:gameLayer.lives-1];
+    
+    [[SimpleAudioEngine sharedEngine] playEffect:[[NSBundle mainBundle] pathForResource:@"Damage1" ofType:@"wav"]];
+}
+
+
 @end
@@ -2,13 +2,13 @@
 //  ValuableObject.h
 //  Cart Collect
 //
-//  Created by iD Student Account on 7/20/11.
-//  Copyright 2011 __MyCompanyName__. All rights reserved.
+//  Created by Starla Insigna on 8/9/11.
+//  Copyright 2011 Four Island. All rights reserved.
 //
 
-#import <Foundation/Foundation.h>
+#import "FallingObject.h"
 
-@protocol ValuableObject
+@interface ValuableObject : FallingObject
 
 - (int)pointValue;
 
@@ -0,0 +1,46 @@
+//
+//  ValuableObject.m
+//  Cart Collect
+//
+//  Created by Starla Insigna on 8/9/11.
+//  Copyright 2011 Four Island. All rights reserved.
+//
+
+#import "ValuableObject.h"
+#import "GameMode.h"
+#import "SimpleAudioEngine.h"
+
+@implementation ValuableObject
+
+- (id)init
+{
+    self = [super init];
+    if (self) {
+        // Initialization code here.
+    }
+    
+    return self;
+}
+
+- (void)collideWithCart
+{
+    GameMode* gameLayer = ((GameMode*) sprite.parent);
+    [gameLayer setScore:gameLayer.score+self.pointValue];
+    
+    [[SimpleAudioEngine sharedEngine] playEffect:[[NSBundle mainBundle] pathForResource:@"Item1" ofType:@"wav"]];
+}
+
+- (void)collideWithFloor
+{
+    GameMode* gameLayer = ((GameMode*) sprite.parent);
+    [gameLayer setLives:gameLayer.lives-1];
+    
+    [[SimpleAudioEngine sharedEngine] playEffect:[[NSBundle mainBundle] pathForResource:@"Damage1" ofType:@"wav"]];
+}
+
+- (int)pointValue
+{
+    @throw [NSException exceptionWithName:NSInternalInconsistencyException reason:[NSString stringWithFormat:@"You must override %@ in a subclass", NSStringFromSelector(_cmd)] userInfo:nil];
+}
+
+@end