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+/*
+ * cocos2d for iPhone: http://www.cocos2d-iphone.org
+ *
+ * Copyright (c) 2009 On-Core
+ *
+ * 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 <Foundation/Foundation.h>
+
+#import "CCNode.h"
+#import "CCCamera.h"
+#import "ccTypes.h"
+
+@class CCTexture2D;
+@class CCGrabber;
+
+/** Base class for other
+ */
+@interface CCGridBase : NSObject
+{
+        BOOL            active_;
+        int                     reuseGrid_;
+        ccGridSize      gridSize_;
+        CCTexture2D *texture_;
+        CGPoint         step_;
+        CCGrabber       *grabber_;
+        BOOL            isTextureFlipped_;
+}
+
+/** wheter or not the grid is active */
+@property (nonatomic,readwrite) BOOL active;
+/** number of times that the grid will be reused */
+@property (nonatomic,readwrite) int reuseGrid;
+/** size of the grid */
+@property (nonatomic,readonly) ccGridSize gridSize;
+/** pixels between the grids */
+@property (nonatomic,readwrite) CGPoint step;
+/** texture used */
+@property (nonatomic, retain) CCTexture2D *texture;
+/** grabber used */
+@property (nonatomic, retain) CCGrabber *grabber;
+/** is texture flipped */
+@property (nonatomic, readwrite) BOOL isTextureFlipped;
+
++(id) gridWithSize:(ccGridSize)gridSize texture:(CCTexture2D*)texture flippedTexture:(BOOL)flipped;
++(id) gridWithSize:(ccGridSize)gridSize;
+
+-(id) initWithSize:(ccGridSize)gridSize texture:(CCTexture2D*)texture flippedTexture:(BOOL)flipped;
+-(id)initWithSize:(ccGridSize)gridSize;
+-(void)beforeDraw;
+-(void)afterDraw:(CCNode*)target;
+-(void)blit;
+-(void)reuse;
+
+-(void)calculateVertexPoints;
+
+@end
+
+////////////////////////////////////////////////////////////
+
+/**
+ CCGrid3D is a 3D grid implementation. Each vertex has 3 dimensions: x,y,z
+ */
+@interface CCGrid3D : CCGridBase
+{
+        GLvoid          *texCoordinates;
+        GLvoid          *vertices;
+        GLvoid          *originalVertices;
+        GLushort        *indices;
+}
+
+/** returns the vertex at a given position */
+-(ccVertex3F)vertex:(ccGridSize)pos;
+/** returns the original (non-transformed) vertex at a given position */
+-(ccVertex3F)originalVertex:(ccGridSize)pos;
+/** sets a new vertex at a given position */
+-(void)setVertex:(ccGridSize)pos vertex:(ccVertex3F)vertex;
+
+@end
+
+////////////////////////////////////////////////////////////
+
+/**
+ CCTiledGrid3D is a 3D grid implementation. It differs from Grid3D in that
+ the tiles can be separated from the grid.
+*/
+@interface CCTiledGrid3D : CCGridBase
+{
+        GLvoid          *texCoordinates;
+        GLvoid          *vertices;
+        GLvoid          *originalVertices;
+        GLushort        *indices;
+}
+
+/** returns the tile at the given position */
+-(ccQuad3)tile:(ccGridSize)pos;
+/** returns the original tile (untransformed) at the given position */
+-(ccQuad3)originalTile:(ccGridSize)pos;
+/** sets a new tile */
+-(void)setTile:(ccGridSize)pos coords:(ccQuad3)coords;
+
+@end