private void HandleStart(string sender, FloorPlanMessage startMessage)
{
int senderId = Utils.ParsePeer(sender);
WorkerPositions.Add(senderId, startMessage.position);
numberOfPositionChanges[senderId] = 0;
FloorPlanMessage ackMessage = BuildFloorPlanMessage(MessageType.Acknowledge, WorkerPositions[senderId]);
Send(sender, JsonSerializer.Serialize(ackMessage));
}
private FloorPlanMessage BuildFloorPlanMessage(string type, Point position)
{
var planMessage = new FloorPlanMessage();
planMessage.type = type;
planMessage.position = position;
planMessage.exitsInFieldOfViewPositions = ExitPositions.Values
.Where(exitPosition => InFieldOfView(exitPosition, position))
.ToList();
planMessage.agentsInFieldOfViewPositions = WorkerPositions
.Where(agentKvp => InFieldOfView(agentKvp.Value, position) && !agentKvp.Value.Equals(position))
.Select(agentKvp => new AgentSummary(agentKvp.Key, agentKvp.Value))
.ToList();
return(planMessage);
}
private void HandleChangePosition(string sender, FloorPlanMessage receivedMessage)
{
int senderId = Utils.ParsePeer(sender);
// Block is handled regardless if in emergency or not
foreach (int workerId in WorkerPositions.Keys)
{
if (workerId == senderId)
{
continue;
}
if (WorkerPositions[workerId].Equals(receivedMessage.position))
{
var blockMessage = BuildFloorPlanMessage(MessageType.Block, WorkerPositions[senderId]);
Send(sender, JsonSerializer.Serialize(blockMessage));
return;
}
}
// todo: block if server is congested
if (WorkerPositions.ContainsKey(senderId) && Utils.Distance(WorkerPositions[senderId], receivedMessage.position) > 1)
{
var blockMessage = BuildFloorPlanMessage(MessageType.Block, WorkerPositions[senderId]);
Send(sender, JsonSerializer.Serialize(blockMessage));
return;
}
// Allow the requested move
if (!WorkerPositions.ContainsKey(senderId))
{
return;
}
else
{
WorkerPositions[senderId] = receivedMessage.position;
}
// Should declare emergency
if (++numberOfPositionChanges[senderId] == turnsUntilEmergency)
{
var emergencyMessage = BuildFloorPlanMessage(MessageType.Emergency, WorkerPositions[senderId]);
Send(sender, JsonSerializer.Serialize(emergencyMessage));
return;
}
// Exit if emergency is declared
if (isEmergencyDeclared(senderId) && ExitPositions.Values.Contains(WorkerPositions[senderId]))
{
var exitMessage = BuildFloorPlanMessage(MessageType.Exit, WorkerPositions[senderId]);
Send(sender, JsonSerializer.Serialize(exitMessage));
WorkerPositions.Remove(senderId);
this.Environment.Remove(sender);
if (WorkerPositions.Count == 0)
{
this.Stop();
}
return;
}
// Only thing remaining to do is acknowledge the move
var moveMessage = BuildFloorPlanMessage(MessageType.Acknowledge, WorkerPositions[senderId]);
Send(sender, JsonSerializer.Serialize(moveMessage));
}
