Super linia

void my_line(int x0, int y0, int x1, int y1) {
    int linecolor = makecol(255, 255, 255);

    if(x1 == x0) {
        for(int y = min(y0, y1); y <= max(y0,y1); ++y) {
            putpixel(screen, x0, y, linecolor);
        };
        return;
    };

    if(y1 == y0) {
        for(int x = min(x0, x1); x <= max(x0,x1); ++x) {
            putpixel(screen, x, y0, linecolor);
        };
        return;
    }

    double m = (y1 - y0) / (double) (x1 - x0);
    cout << "Wspolczynnik nachylenia m = " << m << endl;

    if(abs(m) <= 1) {
        int x = x0;
        double y = y0;
        while( min(x0, x1) <= x && x <= max(x0, x1)) {
            putpixel(screen, x, floor(y), linecolor);
            x = (x0 <= x1) ? x + 1 : x - 1;
            y = (x0 <= x1) ? y + m : y - m;
        };
    } else {
        double x = x0;
        int y = y0;
        m = (x1 - x0) / (double) (y1 - y0);
        while( min(y0, y1) <= y && y <= max(y0, y1)) {
            putpixel(screen, floor(x), y, linecolor);
            y = (y0 <= y1) ? y + 1 : y - 1;
            x = (y0 <= y1) ? x + m : x - m;
        };
    }
}