Reworked falling objects

Previously, every type of falling object had to have its own class that defined the object type's sprite, weight, and reaction to the cart/floor. This was pretty messy considering how many object types may only be used in one game mode--for instance, the many power ups in Power mode, once it's created, will never be used outside of Power mode. So, to increase customizability and decrease class clutter, game modes now use a FallingObjectFactory to define recipes (basically a sprite filename, a weight and an identifier) that can easily be built throughout the game mode using the identifier. FallingObjectDelegate is now used for all reactions to the cart/floor, rather than defining a standard reaction in the FallingObject subclass and then putting extra stuff in FallingObjectDelegate.

1 files changed, 70 insertions, 0 deletions

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+//
+//  FallingObjectFactory.m
+//  Cartographic
+//
+//  Created by Starla Insigna on 9/10/11.
+//  Copyright (c) 2011 Four Island. All rights reserved.
+//
+
+#import "FallingObjectFactory.h"
+
+@interface FallingObjectRecipe : NSObject {
+    NSString* spriteFilename;
+    int weight;
+}
+
+@property (readonly) NSString* spriteFilename;
+@property (readonly) int weight;
+- (id)initWithSpriteFilename:(NSString*)filename weight:(int)m_weight;
+
+@end
+
+@implementation FallingObjectRecipe
+
+@synthesize spriteFilename, weight;
+
+- (id)initWithSpriteFilename:(NSString*)filename weight:(int)m_weight
+{
+    self = [super init];
+    
+    if (nil != self)
+    {
+        spriteFilename = [filename retain];
+        weight = m_weight;
+    }
+    
+    return self;
+}
+
+@end
+
+@implementation FallingObjectFactory
+
+- (id)init
+{
+    self = [super init];
+    
+    if (nil != self)
+    {
+        recipes = [[NSMutableDictionary alloc] init];
+    }
+    
+    return self;
+}
+
+- (void)createRecipeWithIdentifier:(int)identifier spriteFilename:(NSString*)filename weight:(int)weight
+{
+    FallingObjectRecipe* recipe = [[FallingObjectRecipe alloc] initWithSpriteFilename:filename weight:weight];
+    [recipes setObject:recipe forKey:[NSNumber numberWithInt:identifier]];
+    [recipe release];
+}
+
+- (FallingObject*)buildFallingObjectWithRecipeIdentifier:(int)identifier
+{
+    FallingObjectRecipe* recipe = [recipes objectForKey:[NSNumber numberWithInt:identifier]];
+    FallingObject* object = [[FallingObject alloc] initWithSpriteFilename:recipe.spriteFilename weight:recipe.weight objectType:identifier];
+    
+    return [object autorelease];
+}
+
+@end