private async Task ExecuteMission()
{
var mission = default(Mission);
var nextMission = default(Mission);
lock (stackLock)
{
mission = currentMission;
nextMission = activeMissions.Any() ? activeMissions.First() : null;
if (null != MissionUpdated)
{
var state = new CommanderState(mission, nextMission);
MissionUpdated.Invoke(state);
}
}
// step 1. check if there is a mission begin executed
// check the mission timeout
if (null != mission)
{
//Debug.WriteLine($"mission {mission.Id} {mission.Type} is running...");
// check the result of mission and return if it is already completed.
if (!mission.CheckIfCompleted())
{
return;
}
lock (stackLock)
{
// mission completed, put it into bucket.
completedMissions.Add(mission);
currentMission = null;
if (null != MissionUpdated)
{
var state = new CommanderState(null, nextMission);
MissionUpdated.Invoke(state);
}
}
}
// step 2. pop a new mission
lock (stackLock)
{
// no more mission, skip this cycle.
if (!activeMissions.Any())
{
return;
}
mission = activeMissions.Dequeue();
currentMission = mission;
nextMission = activeMissions.Any() ? activeMissions.First() : null;
if (null != MissionUpdated)
{
var state = new CommanderState(mission, nextMission);
MissionUpdated.Invoke(state);
}
}
try
{
mission.Start();
}
catch (Exception ex)
{
Debug.WriteLine($"Cmd Executor: ${ex.ToString()}"); Debugger.Break();
}
}
public CommanderState(Mission currentMission, Mission nextMission)
{
CurrentMission = currentMission;
NextMission = nextMission;
}