add job menu and start job

ReallifeGamemode.Server/Job/JobBase.cs

@@ -1,6 +1,8 @@
 using GTANetworkAPI;
 using ReallifeGamemode.Server.Entities;
+using ReallifeGamemode.Server.Managers;
 using ReallifeGamemode.Server.Models;
+using ReallifeGamemode.Server.Services;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -22,21 +24,31 @@ namespace ReallifeGamemode.Server.Job
 
         public abstract string Name { get; }
 
+        public abstract bool NeedVehicleToStart { get; }
+
         public void StartJob(Client player)
         {
             _inJob.Add(player);
-            JobStart();
+
+            if (NeedVehicleToStart && !GetJobVehicles().Any(v => VehicleManager.GetVehicleFromServerVehicle(v).Handle.Value == player.Vehicle?.Handle.Value))
+            {
+                ChatService.Error(player, "Zum Start dieses Jobs musst du in einem Jobfahrzeug sein");
+                return;
+            }
+
+            JobStart?.Invoke();
         }
 
         public void StopJob(Client player)
         {
             _inJob.Remove(player);
-            JobStop();
+
+            JobStop?.Invoke();
         }
 
         public List<JobVehicle> GetJobVehicles()
         {
-            using(var dbContext = new DatabaseContext())
+            using (var dbContext = new DatabaseContext())
             {
                 return dbContext.JobVehicles.Where(j => j.JobId == Id).ToList();
             }