public void Update()
{
if (timer >= Constant.EffectSwordBeamCollisionTimer)
{
IsDestructable = true;
}
timer++;
PositionNE = new Vector2(PositionNE.X + 1 * ItemConstants.ArrowSpeed, PositionNE.Y + (-1 * ItemConstants.ArrowSpeed));
PositionNW = new Vector2(PositionNW.X + (-1 * ItemConstants.ArrowSpeed), PositionNW.Y + (-1 * ItemConstants.ArrowSpeed));
PositionSE = new Vector2(PositionSE.X + (1 * ItemConstants.ArrowSpeed), PositionSE.Y + (1 * ItemConstants.ArrowSpeed));
PositionSW = new Vector2(PositionSW.X + (-1 * ItemConstants.ArrowSpeed), PositionSW.Y + (1 * ItemConstants.ArrowSpeed));
SpriteNE.Update();
SpriteNW.Update();
SpriteSE.Update();
SpriteSW.Update();
}