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+/*
+ * cocos2d for iPhone: http://www.cocos2d-iphone.org
+ *
+ * Copyright (c) 2008-2010 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 "CCTextureAtlas.h"
+#import "CCNode.h"
+#import "CCProtocols.h"
+
+/** CCAtlasNode is a subclass of CCNode that implements the CCRGBAProtocol and
+ CCTextureProtocol protocol
+ 
+ It knows how to render a TextureAtlas object.
+ If you are going to render a TextureAtlas consider subclassing CCAtlasNode (or a subclass of CCAtlasNode)
+ 
+ All features from CCNode are valid, plus the following features:
+ - opacity and RGB colors
+ */
+@interface CCAtlasNode : CCNode <CCRGBAProtocol, CCTextureProtocol>
+{
+        // texture atlas
+        CCTextureAtlas  *textureAtlas_;
+
+        // chars per row
+        NSUInteger              itemsPerRow_;
+        // chars per column
+        NSUInteger              itemsPerColumn_;
+                
+        // width of each char
+        NSUInteger              itemWidth_;
+        // height of each char
+        NSUInteger              itemHeight_;
+
+        // quads to draw
+        NSUInteger              quadsToDraw_;
+
+        // blend function
+        ccBlendFunc             blendFunc_;
+
+        // texture RGBA. 
+        GLubyte         opacity_;
+        ccColor3B       color_;
+        ccColor3B       colorUnmodified_;
+        BOOL opacityModifyRGB_;
+}
+
+/** conforms to CCTextureProtocol protocol */
+@property (nonatomic,readwrite,retain) CCTextureAtlas *textureAtlas;
+
+/** conforms to CCTextureProtocol protocol */
+@property (nonatomic,readwrite) ccBlendFunc blendFunc;
+
+/** conforms to CCRGBAProtocol protocol */
+@property (nonatomic,readwrite) GLubyte opacity;
+/** conforms to CCRGBAProtocol protocol */
+@property (nonatomic,readwrite) ccColor3B color;
+
+/** how many quads to draw */
+@property (readwrite) NSUInteger quadsToDraw;
+
+/** creates a CCAtlasNode  with an Atlas file the width and height of each item measured in points and the quantity of items to render*/
++(id) atlasWithTileFile:(NSString*)tile tileWidth:(NSUInteger)w tileHeight:(NSUInteger)h itemsToRender: (NSUInteger) c;
+
+/** initializes an CCAtlasNode  with an Atlas file the width and height of each item measured in points and the quantity of items to render*/
+-(id) initWithTileFile:(NSString*)tile tileWidth:(NSUInteger)w tileHeight:(NSUInteger)h itemsToRender: (NSUInteger) c;
+
+/** updates the Atlas (indexed vertex array).
+ * Shall be overriden in subclasses
+ */
+-(void) updateAtlasValues;
+@end