ccGridSize in cocos2d

Question

While using ccWave, one of the parameters was grid and it showed that the value should be of type ccGridSize.

I would like to know what a ccGridSize is.. What value should be given for a ccGridSize variable?

The code for ccWaves is as follows...

[CCWaves actionWithWaves:<(int)> amplitude:<(float)>
              horizontal:<(BOOL)> vertical:<(BOOL)>
                    grid:<(ccGridSize)> duration:<(ccTime)>]; 

What value can be given in the place of the parameter grid???

Answer 1

Cocos2d defines ccGridSize as:

typedef struct _ccGridSize
{
    NSInteger   x;
    NSInteger   y;
} ccGridSize;

And provides an inline factory function:

static inline ccGridSize ccg(const NSInteger x, const NSInteger y);

So you can write your call as:

... grid:ccg(gridSizeX, gridSizeY)

Where gridSizeX and gridSizeY define a number of grid columns and rows for your effect.

Answer 2

From cctypes.h:

 typedef struct _ccGridSize
 {
        NSInteger   x;
        NSInteger   y;
 } ccGridSize;

So it's just a couple of ints to state how big every step is of the grid that you are going to animate.