TheTrue.java

public class TheTrue {       //真值阵
    private int tx,ty,tn;  //长宽个数，雷数
    private boolean[][] t;    //真值阵
    public TheTrue(int x,int y,int n) {
        fresh(x,y,n);
    }
    public void fresh(int x,int y,int n) {     //构造新的真值阵
        t = new boolean[x][y];
        for(boolean[] b1:t)         //赋初值
            for(boolean b2:b1)
                b2 = false;
        int intSum;
        for(intSum=0;intSum<n;) {    //安放地雷
            tx = (int)(Math.random()*x);
            ty = (int)(Math.random()*y);
            if(get(tx,ty)) continue;
            t[tx][ty] = true;
            intSum++;
        }
        tx = x; ty = y; tn = n;     //更新真值阵的状态
    }
    public void fresh() {
        fresh(tx,ty,tn);
    }
    public boolean get(int x,int y) {     //获取某个坐标的真值
        if(x>=t.length||y>=t[0].length||t[x][y]!=true) return false;
        else return true;
    }
}