Beyond_Beyaan.EmpireManager.UpdateFleetMovement C# (CSharp) Метод

        public bool UpdateFleetMovement(float frameDeltaTime)
        {
            bool stillHaveMovement = false;
            foreach (Empire empire in _empires)
            {
                if (empire.FleetManager.MoveFleets(frameDeltaTime))
                {
                    stillHaveMovement = true;
                }
                foreach (var fleet in empire.FleetManager.GetFleets())
                {
                    fleet.VisibleToWhichEmpires.Clear();
                    //Update whether or not it's visible to other empires
                    foreach (Empire otherEmpire in _empires)
                    {
                        if (otherEmpire == empire)
                        {
                            continue; //no need to check owner
                        }
                        foreach (var planet in otherEmpire.PlanetManager.Planets)
                        {
                            float xDis = fleet.GalaxyX - planet.System.X;
                            float yDis = fleet.GalaxyY - planet.System.Y;
                            if ((xDis * xDis) + (yDis * yDis) < otherEmpire.TechnologyManager.PlanetRadarRange)
                            {
                                fleet.VisibleToWhichEmpires.Add(otherEmpire);
                                break;
                            }
                        }
                        if (otherEmpire.TechnologyManager.FleetRadarRange > 0 && !fleet.VisibleToWhichEmpires.Contains(otherEmpire))
                        {
                            //It first checks if other empire even have fleet radar, and if it's not already detected by planets, to improve performance
                            foreach (var otherFleet in otherEmpire.FleetManager.GetFleets())
                            {
                                float xDis = fleet.GalaxyX - otherFleet.GalaxyX;
                                float yDis = fleet.GalaxyY - otherFleet.GalaxyY;
                                if ((xDis * xDis) + (yDis * yDis) < otherEmpire.TechnologyManager.FleetRadarRange)
                                {
                                    fleet.VisibleToWhichEmpires.Add(otherEmpire);
                                    break;
                                }
                            }
                        }
                    }
                }
            }
            return stillHaveMovement;
        }