- 主题
- 23
- 帖子
- 278
- 精华
- 1
- 积分
- 1334
- C币
- 1031 枚
- 在线时间
- 303 小时
- 注册时间
- 2009-6-13
- 最后登录
- 2012-5-17
- 性别
- 男
- 居住地
- 广东省 深圳市
   
- 主题
- 23
- 帖子
- 278
- C币
- 1031 枚
- 在线时间
- 303 小时
|
class snakePrint {
static int length = 7;
static int value = 1;
static int[][] snake = new int[length][length];
static Direction lastDirection = Direction.Right;
static enum Direction {
Right, Down, Left, Up;
}
public static void initialArray() {
int row = 0, line = 0;
for (int c = 0; c < length * length; c++) {
snake[row][line] = value;
lastDirection = findDirection(row, line);
switch (lastDirection) {
case Right:
line++;
break;
case Down:
row++;
break;
case Left:
line--;
break;
case Up:
row--;
break;
default:
System.out.println("error");
}
value++;
}
}
static Direction findDirection(int row, int line) {
Direction direction = lastDirection;
switch (direction) {
case Right: {
if ((line == length - 1) || (snake[row][line + 1] != 0))
direction = direction.Down;
break;
}
case Down: {
if ((row == length - 1) || (snake[row + 1][line] != 0))
direction = direction.Left;
break;
}
case Left: {
if ((line == 0) || (snake[row][line - 1] != 0))
direction = direction.Up;
break;
}
case Up: {
if (snake[row - 1][line] != 0)
direction = direction.Right;
break;
}
}
return direction;
}
public static void main(String[] args) {
initialArray();
// display.....
for (int i = 0; i < length; i++) {
for (int j = 0; j < length; j++) {
System.out.print(snake[i][j] + " ");
}
System.out.println();
}
}
} |
|