sp_mx

Prototypeint sp_mx(int active_sprite, int pixels[-1])

sp_mx() gets or sets the number of pixels the sprite is moving horizontally per sp_timing() interval. This is used to make sprites move in directions other than the 8 used with sp_dir() or to finely tune movement speed.

If you need to set the value -1 (which will return the current pixels value in this function), use sp_move_x().

If pixels is negative, the active_sprite will move left. If pixels is positive, the active_sprite will move right.

// Excerpt from item-fb.c
if (&mydir == 9)
{
    &mholdx += 30;
    &junk = create_sprite(&mholdx, &mholdy, 11, 506, 1);
    sp_seq(&junk, 506);
    sp_mx(&junk, +6);
    sp_my(&junk, -2);
}