int ystart = you.y_pos - 9, xstart = you.x_pos - 9;
    int yend = you.y_pos + 9, xend = you.x_pos + 9;
    if (xstart < 0) xstart = 0;
    if (ystart < 0) ystart = 0;
    if (xend >= GXM) xend = GXM - 1;
    if (yend >= GYM) yend = GYM - 1;

    const int ystart = MAX(0,       you.y_pos - 9);
    const int yend   = MIN(GYM - 1, you.y_pos + 9);
    const int xstart = MAX(0,       you.x_pos - 9);
    const int xend   = MIN(GXM - 1, you.x_pos + 9);

                if ( targ_monst != NON_MONSTER )

                if (targ_monst != NON_MONSTER)

        int ystart = you.y_pos - 9, xstart = you.x_pos - 9;
        int yend = you.y_pos + 9, xend = you.x_pos + 9;
        if ( xstart < 0 ) xstart = 0;
        if ( ystart < 0 ) ystart = 0;
        if ( xend >= GXM ) xend = GXM - 1;
        if ( yend >= GYM ) yend = GYM - 1;

        const int ystart = MAX(0,       you.y_pos - 9);
        const int yend   = MIN(GYM - 1, you.y_pos + 9);
        const int xstart = MAX(0,       you.x_pos - 9);
        const int xend   = MIN(GXM - 1, you.x_pos + 9);

    int xstart = 0, ystart = 0;
    int xend = GXM, yend = GYM;

    int ystart = 0, yend = GXM - 1;
    int xstart = 0, xend = GYM - 1;

        xstart = you.x_pos - 9;
        ystart = you.y_pos - 9;
          xend = you.x_pos + 9;
          yend = you.y_pos + 9;
        if ( xstart < 0 ) xstart = 0;
        if ( ystart < 0 ) ystart = 0;
        if ( xend >= GXM )  xend = GXM - 1;
        if ( yend >= GYM )  yend = GYM - 1;

        ystart = MAX(0,       you.y_pos - 9);
        xstart = MAX(0,       you.x_pos - 9);
          yend = MIN(GYM - 1, you.y_pos + 9);
          xend = MIN(GXM - 1, you.x_pos + 9);

    // monster check

    // Monster check.

    {

        {

        }
    }

                                bool just_check = false, bool want_move = false,
                                bool dangerous = false, int range = -1);

                                bool want_move = false, bool just_check = false,
                                bool dangerous_only = false, int range = -1);

    for (int y = ystart; y <= yend; y++)
        for (int x = xstart; x <= xend; x++)

    for (int y = ystart; y <= yend; ++y)
    {
        for (int x = xstart; x <= xend; ++x)

                if (see_grid(x,y))

                if (see_grid(x, y))

    }