2d阵列发生器JAVA中的随机路径

Question

我正在开发一个迷宫游戏。首先，我想生成一个空地图，然后生成一个路径，然后将障碍物放入，因为这可以确保迷宫可以解决。

    public int[][] generatePath(int[][] map){
    int[][]gameMap= map;
    int steps = 0;
    //Choose random start position on grid
     Random rand = new Random();
     int  rowStart = rand.nextInt(this.gridSize);       
     int  colStart = rand.nextInt(this.gridSize);
     //1 indicates a step in the path
     int step = 1;
     gameMap[rowStart][colStart] =step;
     //length of the path along the 2d grid
     int pathLength = 5;
     int curRow =rowStart;
     int curCol =colStart;
     while(pathLength>-1){
         //choose to move row in currentRow
         int  nextRow = rand.nextInt(2) + 1;
         if(nextRow+ curRow <gridSize)curRow+=nextRow;
         //choose to move row in currentRow
         int  nextCol = rand.nextInt(2) + 1;
         if(nextCol+ curCol <gridSize)curCol+=nextCol;
         gameMap[curRow][curCol]=step;
         pathLength--;
     }
     return gameMap;
}

此代码未成功

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