C＃迷宮求解圖形

Question

我買了我的迷宮求解一個問題，當我運行求解它在圖形變量給出了一個錯誤

private bool solveMaze(int xPos, int yPos, bool[,] alreadySearched) 
     { 
      bool correctPath = false; 
      bool shouldCheck = true; 

      Bitmap map = (Bitmap)Mazebox.Image; 
      Graphics gfx = null; 
      gfx = Graphics.FromImage(map); 
      Brush b = new SolidBrush(Color.CornflowerBlue); 

      //out of index check 
      if (xPos >= XTILES || xPos < 0 || yPos >= YTILES || yPos < 0) 
       shouldCheck = false; 

      if (map.GetPixel(xPos , yPos) == Color.Green) 
      { 
       correctPath = true; 
      } 
      //Search the Tile 
      if (shouldCheck) 
      { 
       //mark tile as searched 
       alreadySearched[xPos, yPos] = true; 

       //Check right tile 
       correctPath = correctPath || solveMaze(xPos + 1, yPos, alreadySearched); 
       //Check down tile 
       correctPath = correctPath || solveMaze(xPos, yPos + 1, alreadySearched); 
       //check left tile 
       correctPath = correctPath || solveMaze(xPos - 1, yPos, alreadySearched); 
       //check up tile 
       correctPath = correctPath || solveMaze(xPos, yPos - 1, alreadySearched); 
      } 
      //make correct path gray 
      if (correctPath) 
      { 
       gfx.FillRectangle(b, xPos, yPos, 10, 10); 
       Mazebox.Image = map; 
      } 

      return correctPath; 
     } 

我認爲問題是，他打開它了很多，然後它墜毀（無窮大） 任何人都可以幫助我解決這個問題嗎？

Answer 1

您從未使用過您的alreadySearched字段。

可以通過插入

shouldCheck = shouldCheck && !alreadySearched[xPos, yPos];