Game Development Reference
In-Depth Information
{
[self.gameSession sendData:packet
toPeers:[NSArray
arrayWithObject:peerId]withMode:MCSessionSendDataUnreliableerror:&error];
}
if (error)
{
NSLog(@"Error:%@",[error description]);
}
}
}
Here
networkPacket
is created with a header and data. A variable
pIntData
is declared, which is the header containing the
NetworkPack-
etCode
and a
gamePacketNumber
so that a unique number is assigned to a
packet to serialize the network packets to be used to sync or update the game
properly. Once the packet is created, a method called
sendData
of
MCSes-
sion
is called with the packet to be sent,
peerID
to which the packet has to be
sent, the mode, which can be
MCSessionSendDataUnreliable
or
MCSessionSendDataReliable
and
error
to check whether an error has
occurred while sending the packet.
This method will be reused everywhere in the game to send packets to peers of
the same game.
3. Generate a random number and store it in the variable
gameU-
niqueIdForPlayerAllocation
declared above, which will help to decide
which will be the first and second player. Add this line in the
didMoveToView
method of
GameScene
.
gameUniqueIdForPlayerAllocation = arc4random();
4. Add the following code to receiving data delegate method of
MCSession
for
handling of received packets based on their
NetworkPacketCode
as shown in
the following code:
- (void)session:(MCSession *)session
didReceiveData:(NSData *)data fromPeer:(MCPeerID
*)peerID {
// Data has been received from a peer.
