cursorctl.c

#include <ncurses.h>
#include <sys/param.h>

int main()
{
    initscr();
    printw("Press WASD to move the cross, Q to quit\n");
    int x = 10;
    int y = 10;
    refresh();
    int ch = 0;
    noecho();
    while (ch != 'q')
    {
        ch = getch();
        int sy, sx;
        getmaxyx(stdscr, sy, sx);
        move(y, x);
        delch();
        if (ch == '2')
            y--;
        if (ch == '8')
            y++;
        if (ch == '4')
            x--;
        if (ch == '6')
            x++;
        y = MAX(1, MIN(sy - 1, y));
        x = MAX(0, MIN(sx - 1, x));
        move(y, x);
        addch('O');
        refresh();
    }
    endwin();
    return 0;
}
//dynamically (int double)