package 
{

	/**
	 * @author nicoptere
	 */
	import flash.display.*;
	
	public class Skeletize 
	{
		
		static public function skeletize( bd:BitmapData, passes:int = -1 ):void
		{
			
			 var kernels:Array = new Array(
										    [ 0,0,0,2,1,2,1,1,1 ],
											[ 0,0,0,2,1,2,1,1,1 ],
											[ 2,0,0,1,1,0,2,1,2 ],
											[ 1,2,0,1,1,0,1,2,0 ],
											[ 2,1,2,1,1,0,2,0,0 ],
											[ 1,1,1,2,1,2,0,0,0 ],
											[ 2,1,2,0,1,1,0,0,2 ],
											[ 0,2,1,0,1,1,0,2,1 ],
											[ 0,0,2,0,1,1,2,1,2 ]
					   						);
					   						
			var i:int;
			if( passes == -1 )
			{		   		
								
				for ( i = 0; i < kernels.length; i++ )
				{
					Thinning.thin( bd, kernels[ i ] );
				}
				
			}
			else
			{
				while( passes-- )
				{	   						
					for ( i = 0; i < kernels.length; i++ )
					{
					 Thinning.thin( bd, kernels[ i ] );
					}
				}
			}
		}
		
	}
}