if (side == 0)
{
    x -= 160;
    hspeed = -9 - random(8);
    vspeed = 4 + random(10);
}
if (side == 1)
{
    x += 160;
    hspeed = 9 + random(8);
    vspeed = 4 + random(10);
}
for (i = 0; i < 18; i += 1)
{
    trail.xprev[i] = x;
    trail.yprev[i] = y;
}