public void UpdateEnemyAmmo(GameTime gameTime)
{
if (ammoActive)
{
fElapsed += (float)gameTime.ElapsedGameTime.TotalSeconds;
if (fElapsed > fUpdateInterval)
{
fElapsed = 0f;
aLocation.X -= iSpeed;
// If the bullet has moved off of the screen,
// set it to inactive
if ((aLocation.X > 800f) || (aLocation.X < 1f))
{
ammoActive = false;
}
} //end If
} // end If
}