XNA 4.0 Game Development by Example Beginner's Guide

Time for action – water in the pipes

1. Add a method to the GameBoard class to clear the water marker from all pieces:

     public void ResetWater()
     {
         for (int y = 0; y < GameBoardHeight; y++)
             for (int x = 0; x < GameBoardWidth; x++)
                 boardSquares[x,y].RemoveSuffix("W");
     }

2. Add a method to the GameBoard class to fill an individual piece with water:

     public void FillPiece(int X, int Y)
     {
         boardSquares[X,Y].AddSuffix("W");
     }

What just happened?

The ResetWater() method simply loops through each item in the boardSquares array and removes the W suffix from the GamePiece. Similarly, to fill a piece with water, the FillPiece() method adds the W suffix to the GamePiece. Recall that by having a W suffix, the GetSourceRect() method of GamePiece shifts the source rectangle ...