我正在努力随机化我的骑士在我的骑士的旅游代码中采取的行动。但由于某种原因，我的 switch 语句总是默认，而不是执行可能的移动。我知道我可能的移动方法有效，因为我已经单独运行firstMoveChoice()它自己并且它有效。所以我知道问题出在我的随机移动选择器上，但我似乎无法弄清楚。
提前感谢您的帮助和时间！非常感谢，因为我已经查看了这个问题并且找不到答案。
public class MoveKnight extends Moves {
public int[][] moveTheKnight() {
Moves switchBetweenMoves = new Moves();
switchBetweenMoves.startingLocation();
while (knight != 64) {
int randomMove = new Random().nextInt();
switch (randomMove) {
case 1:
switchBetweenMoves.firstMoveChoice();
break;
case 2:
switchBetweenMoves.secondMoveChoice();
break;
case 3:
switchBetweenMoves.thirdMoveChoice();
break;
// other possible moves
default:
System.out.println("No more possible moves.");
break;
}
break;
}
return board;
}
}
这是上面代码的结果：
1 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
No more possible moves.
BUILD SUCCESSFUL (total time: 0 seconds)
这是我的主要方法：
public static void main(String[] args) {
MoveKnight myKnight = new MoveKnight();
myKnight.moveTheKnight();
}
这是我的棋盘类：
public class ChessBoard {
int[][] board;
public ChessBoard() {
this.board = new int[8][8];
}
}
这是firstMoveChoice()
public int[][] firstMoveChoice() {
System.out.println();
x += 1;
y += 2;
if (x >= board.length) { // this tests to make sure the knight does not move off the row
System.out.println("Cannot move off board on x axis\n");
x -= 1;
y -= 2;
return board;
}
else if (y >= board.length) { // this tests to make sure the knight does not move off the column
System.out.println("Cannot move off board on y axis\n");
x -= 1;
y -= 2;
return board;
}
else if (board[x][y] != 0) { // this prevents the knight from landing on a previously landed on square
x -= 1;
y -= 2;
System.out.println("Cannot move onto a used square\n");
return board;
}
else { // this moves the knight when the above statements are false
board[x][y] = ++knight;
System.out.println("This executed and the knight moved\n");
for(int[] row : board) {
printRow(row);
}
if (knight == 64) {
System.out.println("Knight has completed the tour");
}
return board;
}
}
这里是thirdMoveChoice()：它实际上和其他所有的一样，除了不同动作的数字变化。
public int[][] thirdMoveChoice() {
System.out.println();
x += 2;
y -= 1;
if (x >= board.length) { // this tests to make sure the knight does not move off the row
System.out.println("Cannot move off board on x axis\n");
x -= 2;
y += 1;
return board;
}
else if (y >= board.length) { // this tests to make sure the knight does not move off the column
System.out.println("Cannot move off board on y axis\n");
x -= 2;
y += 1;
return board;
}
else if (board[x][y] != 0) { // this prevents the knight from landing on a previously landed on square
x -= 2;
y += 1;
System.out.println("Cannot move onto a used square\n");
return board;
}
else { // this moves the knight when the above statements are false
board[x][y] = ++knight;
System.out.println("This executed and the knight moved\n");
}
for(int[] row : board) {
printRow(row);
}
if (knight == 64) {
System.out.println("Knight has completed the tour");
return board;
}
return board;
}