ClassLibraryWeiBao/QR二维码/Masking/Scoring/Penalty2.cs

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namespace Gma.QrCodeNet.Encoding.Masking.Scoring
{
	/// <summary>
	/// ISO/IEC 18004:2000 Chapter 8.8.2 Page 52
	/// </summary>
	internal class Penalty2 : Penalty
    {
        
        internal override int PenaltyCalculate(BitMatrix matrix)
        {
        	int width = matrix.Width;
        	bool topR = false;
        	
        	int x = 0;
        	int y = 0;
        	int penalty = 0;
        	
        	while( y < (width - 1))
        	{
        		while( x < (width - 1))
        		{
        			topR = matrix[x + 1, y];
        			
        			if(topR == matrix[x + 1, y + 1])	//Bottom Right
        			{
        				if(topR == matrix[x, y + 1])	//Bottom Left
        				{
        					if(topR == matrix[x, y])	//Top Left
        					{
        						penalty += 3;
        						x += 1;
        					}
        					else
        						x += 1;
        					
        				}
        				else
        					x += 1;
        			}
        			else
        			{
        				x += 2;
        			}
        		}
        		
        		x = 0;
        		y ++;
        	}
        	return penalty;
        }
        
    }
}