如何调整Dev C++中俄罗斯方块的间距？

Question

我用的是dev c++，请问有谁知道这个俄罗斯方块的间距怎么调小啊，不然看起来好丑

gotoxy(18, 5);
    printf("■");
    gotoxy(18, 6);
    printf("■■");
    gotoxy(18, 7);
    printf("■");

    color(14);
    gotoxy(26, 6);
    printf("■■");
    gotoxy(27, 7);
    printf("■■");

    color(10);
    gotoxy(36, 6);
    printf("■■");
    gotoxy(36, 7);
    printf("■■");

    color(13);
    gotoxy(45, 5);
    printf("■");
    gotoxy(45, 6);
    printf("■");
    gotoxy(45, 7);
    printf("■");
    gotoxy(45, 8);
    printf("■");

    color(12);
    gotoxy(56, 6);
    printf("■");
    gotoxy(54, 7);
    printf("■■■");

调行距，但是做完很多都要改变