/**********************************************************************
*********************************************************************/
//this method imitates the sender of a packet. It is called by the method invoke
public static void SendPackageAt(int seqnum)
{
if (!stopEverything)
{
if (seqnum == nextSeqnum)
{
DrawFillLeft(seqnum);
}
//pending if not already acknowledged . Add to list only once
if (!arrivedAck.Any() && !pendingAck.Contains(seqnum) ||
arrivedAck.Any() && !arrivedAck.Contains(seqnum) && !pendingAck.Contains(seqnum))
{
pendingAck.Add(seqnum);
}
//define object
float yPos = 15 + (65 * (28 - seqnum)); //calculate where the box !starts! in the coordinate system
var pp = new OldPipelineProtocolsPack(seqnum, 0);
pp.Position = new CCPoint(80, yPos);
layer.AddChild(pp);
//define actions
float timeToTake = 5f;
var distance = new CCPoint(280, yPos); //82 to 278 = 278-82 = 196
var sendPackageAction = new CCMoveTo(timeToTake, distance); //this action moves the object 196 in x-direction within 5 seconds
var removeAction = new CCRemoveSelf(); //this action removes the object
//define sequence of actions and apply to object
var cc_seq1 = new CCSequence(sendPackageAction, removeAction);
pp.RunAction(cc_seq1);
}
}
public static void PackArrived(OldPipelineProtocolsPack pp)
{
//if there has no other pack with the same seqnum has arrived before
if (!arrivedPack.Any() || arrivedPack.Any() && !arrivedPack.Contains(pp.seqnum))
{
arrivedPack.Add(pp.seqnum);
DrawFillRight(pp.seqnum);
baseOfWindowRight = FindFirstNotYetArrivedPack();
DrawWindowRight(baseOfWindowRight);
}
SendACKFor(pp.seqnum);
layer.RemoveChild(pp);
}
/**********************************************************************
*********************************************************************/
public static void SlowDownPack(OldPipelineProtocolsPack pp, int xPos)
{
//stop running actions
pp.StopAllActions();
//define actions
float yPos = 15 + (65 * (28 - pp.seqnum));
float timeToTake = 8f;
var distance = new CCPoint(280, yPos);
var sendPackageAction = new CCMoveTo(timeToTake, distance); //this action moves the Object to the CCPoint
var removeAction = new CCRemoveSelf(); //this action removes the object*/
//define sequence of actions and apply to object
var cc_seq1 = new CCSequence(sendPackageAction, removeAction);
pp.RunAction(cc_seq1);
}
public static void PackArrived(OldPipelineProtocolsPack pp)
{
//if it is the exoected seqnum and there has no other pack with the same seqnum has arrived before
if (pp.seqnum == expectedSeqnum && (!arrivedPack.Any() || arrivedPack.Any() && !arrivedPack.Contains(pp.seqnum)))
{
arrivedPack.Add(pp.seqnum);
DrawFillRight(pp.seqnum);
expectedSeqnum = FindFirstNotYetArrivedPack();
DrawExpectedSeqnum();
SendACKFor(pp.seqnum);
}
else if (pp.seqnum <= expectedSeqnum)
{
SendACKFor(pp.seqnum);
}
else if (pp.seqnum > expectedSeqnum)
{
SendACKFor(arrivedPack.Last()); // send ACK for las recent in Order received Pack
}
layer.RemoveChild(pp);
}
public static void PackLost(OldPipelineProtocolsPack pp)
{
}
/**********************************************************************
*********************************************************************/
public static void PackCorrupt(OldPipelineProtocolsPack pp)
{
}
/**********************************************************************
*********************************************************************/
public static void PackCorrupt(OldPipelineProtocolsPack pp)
{
SendACKFor(arrivedPack.Last()); // send ACK for las recent in Order received Pack
}
