Java基本内存匹配游戏

Question

我想编码一个4x4内存匹配有8个相同数字对的游戏。所有面朝下的牌都标有星号。然后用户输入（1,1）和（1,2）作为猜测，如果正确，他们仍然正面朝上，游戏继续。

我的问题：我有大部分的代码完成，但我的方法游戏运行游戏我无法弄清楚如何设置它。任何意见，将不胜感激。

我的代码：

 //Welcome Prompt 
    System.out.println("Welcome to the memory matching game!"); 
    System.out.println("Enter the card coordinate for each card when promted to."); 
    System.out.println("For Example, 11 = Card 1 and 12 = Card 2.\n\n"); 

    board(); 
} 

//print the board 
public static void board() { 
    int[][] cards = new int[4][4]; 
    boolean upDown[][] = new boolean[4][4]; 

    cards = randomizer(); //Shuffle cards  
    System.out.println("  1 2 3 4 "); 
    System.out.println("---+---------"); 
    for (int i = 0; i < 4; i++) { 
     System.out.print(" " + (i + 1) + " | "); 
     for (int a = 0; a < 4; a++) { 
      System.out.print("* "); 
      upDown[i][a] = false; 
     } 
     System.out.println(); 
    } 
    System.out.println(); 
    game(upDown, cards); // calls the game 
} 

public static int[][] randomizer() { 
    int num[] = {1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8}; 
    int cards[][] = new int[4][4]; 
    Random random = new Random(); 
    int temp, t; 
    for (int j = 0; j <= 20; j++) { 
     for (int x = 0; x < 16; x++) { //Randomize the card order 
      t = random.nextInt(1000) % 15; 
      temp = num[x]; 
      num[x] = num[t]; 
      num[t] = temp; 

     } 
     t = 0; 
     for (int r = 0; r < 4; r++) // Cards receive Numbers 
     { 
      for (int s = 0; s < 4; s++) { 
       cards[r][s] = num[t]; 
       t = t + 1; 
      } 
     } 

    } 
    return cards; 
} 

//Start the Game 
public static void game(boolean[][] upDown, int[][] cards) { 

} 

//shuffle the cards 
public static int[][] shuf() { 
    int start[] = {1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8}; 
    int cards[][] = new int[4][4]; 
    Random ran = new Random(); 
    int tmp, i; 
    for (int s = 0; s <= 20; s++) { 
     for (int x = 0; x < 16; x++) //randomize the card placements 
     { 
      i = ran.nextInt(100000) % 15; 
      tmp = start[x]; 
      start[x] = start[i]; 
      start[i] = tmp; 
     } 
    } 
    i = 0; 

    for (int r = 0; r < 4; r++) // put values in cards here 
    { 
     for (int c = 0; c < 4; c++) { 
      cards[r][c] = start[i]; 
      i = i + 1; 
     } 
    } 
    return cards; 

} 
} 

Answer 1

这是非常基本的。但它显示了如何运行游戏的基本想法。左上=“11”，右下=“44”。你可以清理它作为一个练习（包括静态引用的方法传递参数，检查输入不会导致数组越界的错误，等等）

public class MemoryGame { 

    static int[][] cards = new int[4][4]; 
    static boolean upDown[][] = new boolean[4][4]; 
    static Scanner s = new Scanner(System.in); 

    public static void main(String[] args) { 
     setup(); 
     game(upDown, cards); // calls the game 
    } 

    //print the board 
    public static void setup() { 
     for (int i = 0; i < 4; i++) { 
      for (int a = 0; a < 4; a++) { 
       upDown[i][a]=false; 
      } 
     } 
     cards = randomizer(); //Shuffle cards  
    } 

    //print the board 
    public static void displayBoard(boolean[][] upDown, int[][] cards) { 

     System.out.println("  1 2 3 4 "); 
     System.out.println("---+---------"); 
     for (int i = 0; i < 4; i++) { 
      System.out.print(" " + (i + 1) + " | "); 
      for (int a = 0; a < 4; a++) { 
       if (upDown[i][a]) { 
        System.out.print(cards[i][a]); 
        System.out.print(" "); 
       } 
       else 
        System.out.print("* "); 
      } 
      System.out.println(); 
     } 
     System.out.println(); 
    } 

    public static int[][] randomizer() { 
     int num[] = {1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8}; 
     int cards[][] = new int[4][4]; 
     Random random = new Random(); 
     int temp, t; 
     for (int j = 0; j <= 20; j++) { 
      for (int x = 0; x < 16; x++) { //Randomize the card order 
       t = random.nextInt(1000) % 15; 
       temp = num[x]; 
       num[x] = num[t]; 
       num[t] = temp; 

      } 
      t = 0; 
      for (int r = 0; r < 4; r++) // Cards receive Numbers 
      { 
       for (int s = 0; s < 4; s++) { 
        cards[r][s] = num[t]; 
        t = t + 1; 
       } 
      } 

     } 
     return cards; 
    } 

    //Start the Game 
    public static void game(boolean[][] upDown, int[][] cards) { 
     int noDownCards = 16; 
     while (noDownCards > 0) { 
      displayBoard(upDown, cards); 
      System.out.println("Enter co-oridinate 1"); 
      String g1 = s.next(); 
      int g1x = Integer.valueOf(g1.substring(0, 1))-1; 
      int g1y = Integer.valueOf(g1.substring(1, 2))-1; 
      System.out.println(cards[g1x][g1y]); 

      System.out.println("Enter co-oridinate 2"); 
      String g2 = s.next(); 
      int g2x = Integer.valueOf(g2.substring(0, 1))-1; 
      int g2y = Integer.valueOf(g2.substring(1, 2))-1; 
      System.out.println(cards[g2x][g2y]); 
      if (cards[g1x][g1y] == cards[g2x][g2y]) { 
       System.out.println("You found a match"); 
       upDown[g1x][g1y] = true; 
       upDown[g2x][g2y] = true; 
       noDownCards -= 2; 
      } 
     } 
     displayBoard(upDown, cards); 
     System.out.println("You win"); 
    } 

    //shuffle the cards 
    public static int[][] shuf() { 
     int start[] = {1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8}; 
     int cards[][] = new int[4][4]; 
     Random ran = new Random(); 
     int tmp, i; 
     for (int s = 0; s <= 20; s++) { 
      for (int x = 0; x < 16; x++) //randomize the card placements 
      { 
       i = ran.nextInt(100000) % 15; 
       tmp = start[x]; 
       start[x] = start[i]; 
       start[i] = tmp; 
      } 
     } 
     i = 0; 

     for (int r = 0; r < 4; r++) // put values in cards here 
     { 
      for (int c = 0; c < 4; c++) { 
       cards[r][c] = start[i]; 
       i = i + 1; 
      } 
     } 
     return cards; 

    } 

}