Matlab Reversi'有效的移動'檢查

Question

當前我的移動檢查器出現問題，似乎我放入代碼以使其看起來不在矩陣範圍之外的失敗安全模式無法正常工作，有什麼建議嗎？

還有一個問題，它似乎並沒有工作（即我仍然可以將碎片放在任何我想要的地方！）。

function legal = legalMove() 
    d_l = [0, -1]; 
    d_r = [0, 1]; 
    d_u = [-1, 0]; 
    d_d = [1, 0]; 
    d_ul = [-1, -1]; 
    d_ur = [-1, 1]; 
    d_dl = [1, -1]; 
    d_dr = [1, 1]; 
    directions = {'d_l' 'd_ul' 'd_u' 'd_ur' 'd_r' 'd_dr' 'd_d' 'd_dl'}; 
    valid_moves = zeros(8,8); 

    for ci = 1:8 
     for cj = 1:8 
      if game_state(ci,cj) == 0 %check element = 0 
     for count = 1:8 
     d = eval(directions{count}); 
     ti = ci+d(1); 
     tj = cj+d(2); 

     % Check if out of the board 
      if (ti > 8 || ti < 1) || (tj > 8 || tj < 1) 
       break 
      else 
     % Number of enemy pieces you went over 
     cnt = 0; 
     selected = game_state(ti, tj); 

     % Move while going over enemy pieces 
     while selected == player_number * -1 
      ti = ti + d(1); 
      tj = tj + d(2); 
      selected = game_state(ti, tj); 

      % Check if out of the board 
       if (ti > 8 || ti < 1) || (tj > 8 || tj < 1) 
       break 
       else 
       end 

      % Count pieces you went over 
      cnt = cnt + 1; 
     end 
      end 

     % Check if you moved over enemy pieces & whether you landed on your piece 
     if selected == player_number 
      valid_moves(ti,tj) = 1; 
     else 
     end 

     end 
      else 
      end 
     end 
    end 

    if ~isempty(valid_moves) 
     legal = 1; 
    else 
     legal = 0; 
    end 
end 

錯誤時進行退換@ boundries：

Attempted to access game_state(0,7); index must be a positive integer or 
logical. 

Error in umpire/legalMove (line 217) 
       selected = game_state(ti, tj); 

Error in umpire/buttonPress (line 85) 
     legal = legalMove(); 

另一片：我在前面了使用的代碼如下以及

代碼上市

function buttonPress(hObject, eventdata) 



    ended = game_is_over(); 

    if ended == 1; 
     setAllInactive(); 
     winner = calc_winner(); 
     if winner == -1; 
      set(stat_text,'string','Winner is White! Restart?') 
     elseif winner == 1; 
      set(stat_text,'string','Winner is Black! Restart?') 
     else 
      set(stat_text,'string','Game is a tie! Restart?') 
     end 
    else 
    end 

    legal = legalMove(); 
    if legal ~= 1; 
     set(stat_text,'Illegal move! Try again') 
     return 
    else 
    end 

    game_state(get(hObject,'userdata')) = player_number; 
    drawScreen(); 
    player_number = player_number * -1; 
end 

Answer 1

在第二個地方，你分配變量選擇（接近結束時功能legalMove），你有錯誤的地方檢查外面。

這裏有一個固定的版本

% ... 
    % Number of enemy pieces you went over 
    cnt = 0; 
    selected = game_state(ti, tj); 

    % Move while going over enemy pieces 
    while selected == player_number * -1 
     ti = ti + d(1); 
     tj = tj + d(2); 

     % Check if out of the board 
      if (ti > 8 || ti < 1) || (tj > 8 || tj < 1) 
      break 
      else 
      end 

     selected = game_state(ti, tj); 

     % Count pieces you went over 
     cnt = cnt + 1; 
    end 
     end 

    % Check if you moved over enemy pieces & whether you landed on your piece 
    if selected == player_number 
     valid_moves(ti,tj) = 1; 
    else 
    end 
end