Initial commit (version 0.2.1)

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+/*
+ * cocos2d for iPhone: http://www.cocos2d-iphone.org
+ *
+ * Copyright (c) 2010 Ricardo Quesada
+ * Copyright (c) 2011 Zynga Inc.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+
+#import "ccMacros.h"
+#import "CCAnimationCache.h"
+#import "CCAnimation.h"
+#import "CCSprite.h"
+
+
+@implementation CCAnimationCache
+
+#pragma mark CCAnimationCache - Alloc, Init & Dealloc
+
+static CCAnimationCache *sharedAnimationCache_=nil;
+
++ (CCAnimationCache *)sharedAnimationCache
+{
+        if (!sharedAnimationCache_)
+                sharedAnimationCache_ = [[CCAnimationCache alloc] init];
+                
+        return sharedAnimationCache_;
+}
+
++(id)alloc
+{
+        NSAssert(sharedAnimationCache_ == nil, @"Attempted to allocate a second instance of a singleton.");
+        return [super alloc];
+}
+
++(void)purgeSharedAnimationCache
+{
+        [sharedAnimationCache_ release];
+        sharedAnimationCache_ = nil;
+}
+
+-(id) init
+{
+        if( (self=[super init]) ) {
+                animations_ = [[NSMutableDictionary alloc] initWithCapacity: 20];
+        }
+        
+        return self;
+}
+
+- (NSString*) description
+{
+        return [NSString stringWithFormat:@"<%@ = %08X | num of animations =  %i>", [self class], self, [animations_ count]];
+}
+
+-(void) dealloc
+{
+        CCLOGINFO(@"cocos2d: deallocing %@", self);
+        
+        [animations_ release];
+        [super dealloc];
+}
+
+#pragma mark CCAnimationCache - load/get/del
+
+-(void) addAnimation:(CCAnimation*)animation name:(NSString*)name
+{
+        [animations_ setObject:animation forKey:name];
+}
+
+-(void) removeAnimationByName:(NSString*)name
+{
+        if( ! name )
+                return;
+        
+        [animations_ removeObjectForKey:name];
+}
+
+-(CCAnimation*) animationByName:(NSString*)name
+{
+        return [animations_ objectForKey:name];
+}
+
+@end