On Feb 15, 2010, at 8:49 AM, Dave DeLong wrote:

> As far as GGB goes, how well does it handle custom boards?  For example, 
> let's say I wanted to recreate this board: 
> http://gallery.me.com/davedelong#100084/Board&bgcolor=black (dots are valid 
> positions, and lines indicate valid moves between positions).  
> Presumably I'd be creating a custom "Grid" subclass and building the board 
> layout in there.  My board is based on a square grid, but I'm not sure how 
> I'd only make some of the grid positions valid locations, nor how I'd draw 
> the lines in between them. What would I need to do to recreate this board?

You can create a 7x7 RectGrid and then call -removeCellAtRow:column: to remove 
the cells that don't appear in that board. You'd also want to set the 
borderWidth to 0 in the remaining cells so they don't draw their square 
outlines.

Alternatively, you could just start with an empty board and add a BitHolder 
object for every valid position.

Drawing the background lines is up to you. You could create a fancy image of 
the board and add it as a PNG file, or you could make a CALayer for the 
background that has a custom drawing callback.

—Jens_______________________________________________

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