public double Seek(PositionVector newPosition)
{
if (!newPosition.isValid)
{
return 0;
}
direction = newPosition.Track > position.Track ? Direction.In : Direction.Out;
double time = calculateSeek(newPosition);
position.Track = newPosition.Track;
position.Sector = newPosition.Sector;
return time;
}
public double calculateSeek(PositionVector newPosition)
{
double time = (10 + 0.1 * Math.Abs(position.Track - newPosition.Track));
if (newPosition.Sector >= position.Sector)
{
time += newPosition.Sector - position.Sector;
}
else
{
time += (8 - position.Sector) + newPosition.Sector;
}
//Include transfer time of 1 ms
time++;
return time;
}
public Disk()
{
tracks = new Track[250];
position = new PositionVector(0, 0);
direction = Direction.In;
}
public Seek(int arrivalTime, PositionVector position)
{
this.arrivalTime = arrivalTime;
this.position = position;
}