77 lines
2.3 KiB
C#
77 lines
2.3 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Collections.ObjectModel;
|
|
|
|
namespace MyParking.Shared
|
|
{
|
|
// 编队固定布局快照，车队坐标系原点就是编队参考中心。
|
|
public sealed class FleetLayout
|
|
{
|
|
private readonly ReadOnlyCollection<VehicleLayout> _vehicles;
|
|
|
|
public FleetLayout(IReadOnlyList<VehicleLayout> vehicles)
|
|
{
|
|
if (vehicles == null)
|
|
{
|
|
throw new ArgumentNullException(nameof(vehicles));
|
|
}
|
|
|
|
if (vehicles.Count == 0)
|
|
{
|
|
throw new ArgumentException(
|
|
"编队布局至少需要包含一辆车。",
|
|
nameof(vehicles));
|
|
}
|
|
|
|
var snapshot = new VehicleLayout[vehicles.Count];
|
|
var vehicleIds = new HashSet<int>();
|
|
|
|
for (var index = 0; index < vehicles.Count; index++)
|
|
{
|
|
var vehicle = vehicles[index];
|
|
if (vehicle.VehicleId <= 0)
|
|
{
|
|
throw new ArgumentOutOfRangeException(
|
|
nameof(vehicles),
|
|
$"第{index}辆车的编号必须大于零。");
|
|
}
|
|
|
|
if (!vehicleIds.Add(vehicle.VehicleId))
|
|
{
|
|
throw new ArgumentException(
|
|
$"编队布局包含重复车号{vehicle.VehicleId}。",
|
|
nameof(vehicles));
|
|
}
|
|
|
|
NumericGuard.EnsureFinite(
|
|
vehicle.PoseInFleet,
|
|
$"{nameof(vehicles)}[{index}].{nameof(VehicleLayout.PoseInFleet)}");
|
|
snapshot[index] = vehicle;
|
|
}
|
|
|
|
_vehicles = Array.AsReadOnly(snapshot);
|
|
}
|
|
|
|
public IReadOnlyList<VehicleLayout> Vehicles => _vehicles;
|
|
|
|
public int VehicleCount => _vehicles.Count;
|
|
|
|
public bool TryGetVehicle(
|
|
int vehicleId,
|
|
out VehicleLayout vehicle)
|
|
{
|
|
for (var index = 0; index < _vehicles.Count; index++)
|
|
{
|
|
if (_vehicles[index].VehicleId == vehicleId)
|
|
{
|
|
vehicle = _vehicles[index];
|
|
return true;
|
|
}
|
|
}
|
|
|
|
vehicle = default;
|
|
return false;
|
|
}
|
|
}
|
|
}
|