FINALLY IT WORKS!!!

#include <ncurses.h>

int main() {
    initscr();
    keypad(stdscr, TRUE);
    int ch,y,x;
    wmove(stdscr,0,0);
    getyx(stdscr,x,y);
    while(1) {
        ch = getch();        
        switch(ch)  {
            case KEY_DOWN:
                x=x+1;
                wmove(stdscr,x, y);
                break;
            case KEY_UP:
                x=x-1;
                wmove(stdscr,x, y);
                break;
            case KEY_LEFT:
                y=y-1;
                wmove(stdscr,x, y);
                break;
            case KEY_RIGHT:
                y=y+1;
                wmove(stdscr,x, y);
                break;

        }
    }
    return 0;
}

Now, I have to add it to the program, which is the most difficult part…

from yocto.

UPDATE: A solution would be to get the x, y of physical cursor (https://linux.die.net/man/3/getyx) and… something like this:
if (ch == KEY_RIGHT x++) move(x,y);
something like this…
Also, this is interesting…

from yocto.

UPDATE: I got working getting the cursor position, but the noted part to move the cursor doesn't work:

#include <ncurses.h>

int main() {
    int y,x,ch;
    WINDOW *win = initscr();
/////below does not work
        ch = getch(); 
        switch(ch)
        {
            case KEY_DOWN:
                y-=1;
                break;
            case KEY_UP:
                y+=1;
                break;
            case KEY_LEFT:
                x+=1;
                break;
            case KEY_RIGHT:
                x-=1;
                break;
        } 
/////above does not work
    mvaddstr(0, 0, "Hello world!");
    refresh();
    getyx(win, y, x);
    printf("%d %d",x,y);
    x-=3;
    y+=4;
    mvprintw(y, x, "X: %d, Y: %d", x, y);
    refresh();
    getch();
    endwin();  
}

(not sure if the x, y movements are correct) Also, press enter to see the output. Problem is: when any key is pressed, it stops.

from yocto.

Except from the ncurses library, there are also the escape codes:

up - "\033[A"
down - "\033[B"
left - "\033[D"
right - "\033[C"

for X terminals like gnome-terminal and Xterm

from yocto.

UPDATE: I got working getting the cursor position, but the noted part to move the cursor doesn't work:

#include <ncurses.h>

int main() {
    int y,x,ch;
    WINDOW *win = initscr();
/////below does not work
        ch = getch(); 
        switch(ch)
        {
            case KEY_DOWN:
                y-=1;
                break;
            case KEY_UP:
                y+=1;
                break;
            case KEY_LEFT:
                x+=1;
                break;
            case KEY_RIGHT:
                x-=1;
                break;
        } 
/////above does not work
    mvaddstr(0, 0, "Hello world!");
    refresh();
    getyx(win, y, x);
    printf("%d %d",x,y);
    x-=3;
    y+=4;
    mvprintw(y, x, "X: %d, Y: %d", x, y);
    refresh();
    getch();
    endwin();  
}

(not sure if the x, y movements are correct) Also, press enter to see the output. Problem is: when any key is pressed, it stops.

I should remove WINDOW *win and I should add this: keypad(stdscr, TRUE); 😆

from yocto.

Except from the ncurses library, there are also the escape codes:

up - "\033[A"
down - "\033[B"
left - "\033[D"
right - "\033[C"

for X terminals like gnome-terminal and Xterm

For this approach, termios.h could be better.

from yocto.

It needs a rebase... There has been some slight behind the scenes progress for an ncurses rebase, but no text editing functionality yet working (saving, reading buffer, etc).

from yocto.

Follow the progress on the ncurses branch. Currently the only issue is suppressing the ctrl x key output while using default key bindings for every other key.

from yocto.

On the ncurses branch, you can find the program (main.c) This issue is resolved, but not merged into the main branch.

from yocto.