public bool CollidedWithIce()
{
if (details != null){
details = null;
return true;
}
return false;
}
private void UpdatePlayer(float elapsedTimeSeconds)
{
Vector2 previousPosition = player.GetPosition();
player.Update(elapsedTimeSeconds);
Vector2 newPosition = player.GetPosition();
Vector2 speed = player.GetSpeed();
if (didCollide(newPosition))
{
details = GetCollisionDetails(previousPosition, newPosition, speed);
player.SetNewPosition(details.positionAfterCollision);
}
}
private CollisionDetails GetCollisionDetails(Vector2 previousPosition, Vector2 newPosition, Vector2 speed)
{
CollisionDetails ret = new CollisionDetails(speed, previousPosition);
Vector2 xPosition = new Vector2(newPosition.X, previousPosition.Y);
Vector2 yPosition = new Vector2(previousPosition.X, newPosition.Y);
if (didCollide(xPosition) == false)
{
return MoveRightOrLeft(speed, ret);
}
else if (didCollide(yPosition) == false)
{
return MoveUpOrDown(speed, ret, yPosition);
}
else
{
return Stop(ret, speed);
}
}
private static CollisionDetails Stop(CollisionDetails ret, Vector2 speed)
{
ret.speedAfterCollision = new Vector2(0, 0);
return ret;
}
private static CollisionDetails MoveUpOrDown(Vector2 speed, CollisionDetails ret, Vector2 yPosition)
{
ret.positionAfterCollision = yPosition;
return ret;
}
private static CollisionDetails MoveRightOrLeft(Vector2 speed, CollisionDetails ret)
{
ret.speedAfterCollision = SetSpeedX(speed);
return ret;
}
