public override void Update(GameTime gameTime)
{
if (!Alive)
{
return;
}
// movement
previousPlayerPosition = playerPosition;
yVelocity += accelerator;
playerPosition.Y += yVelocity;
totalDistance++;
if (totalDistance >= 100)
{
Distance++;
totalDistance = 0;
}
// intersections
IntersectionLine.PointA = playerPosition;
IntersectionLine.PointB = new Vector2(playerPosition.X - 7, previousPlayerPosition.Y);
NotifyAllObservers();
// trail
trail.AddVertex(playerPosition.ToPoint());
// remove non drawable points
if (trail.VerticesCount > 1)
{
if (trail[0].X < 0 && trail[1].X < 0)
{
trail.RemoveVertexAt(0);
}
}
// move trail
for (int i = 0; i < trail.VerticesCount; i++)
{
trail[i] += new Point(-7, 0);
}
base.Update(gameTime);
}
