A simple drive to destination script

This is my frist script for gta v, maybe it can help some beginners.
If anyone has some tips how i could code better or what i do wrong just tell me.

Press E to start your job.
Press Y when on the marker.

Know bugs:
Destination is random, but could be the same destination when completeing your task.
When you complete your job it will just recount from 0 so its endless.



paintJob.cs

Code:

using GTANetworkServer;
using GTANetworkShared;
using System;
using System.Collections.Generic;


public class paintJob : Script
{
    public paintJob()
    {
        API.onResourceStart += onResourceStart;
        API.onClientEventTrigger += OnClientEvent;
    }

    public ColShape misStartColshape;
    public ColShape misEndColshape;

    public Marker marker;
    public Blip desblip;
    public int taskdone;

    
 
    public void onResourceStart()
    {
        API.createMarker(1, new Vector3(833.1752, 1288.977, 362.5864), new Vector3(), new Vector3(), new Vector3(2, 2, 2), 255, 0, 0, 255); // marker to start the job
        Blip misBlip = API.createBlip(new Vector3(833.1752, 1288.977, 362.5864)); // blip to start job
        API.setBlipSprite(misBlip, 56);
        API.setBlipName(misBlip, "Paint Job");
        API.setBlipColor(misBlip, 5);
        misStartColshape = API.createCylinderColShape(new Vector3(833.1752, 1288.977, 362.5864), 5f, 3f); // colshap for mission start point

        misStartColshape.onEntityEnterColShape += (shape, entity) =>
        {
            Client player;

            if ((player = API.getPlayerFromHandle(entity)) != null)
            {
                API.sendChatMessageToPlayer(player, "~b~ Press E to start the job");
            }
        };

    }

    public void OnClientEvent(Client player, string eventName, params object[] arguments) //arguments param can contain multiple params
    {
        if (eventName == "StartMission") //an eventname with no params that was triggered from the Client-side script
        {

            if (misStartColshape.containsEntity(player.handle))
            {
                API.setPlayerSkin(player, PedHash.Lathandy01SMM);
                VehicleHash taxi = API.vehicleNameToModel("Pony");
                Vehicle myvehicle = API.createVehicle(taxi, new Vector3(833.1752, 1288.977, 362.5864), new Vector3(0, 0, 143.9855), 0, 0, 0);
                API.setPlayerIntoVehicle(player, myvehicle, -1);
                API.setEntityData(player, "paintJob", true);
                API.sendChatMessageToPlayer(player, "~g~You are now a grafity remover");
                nextDes(player);
            }
            else { API.sendChatMessageToPlayer(player, "~r~You are too far away"); }

        }

        if (eventName == "objComplete") //an eventname with no params that was triggered from the Client-side script
        {

            if (misEndColshape.containsEntity(player.handle))
            {
                taskdone++;

                if (taskdone == 5)
                {
                    API.sendChatMessageToPlayer(player, "~g~ Job complete");
                    taskdone = 0;
                }
                else
                {
                    API.sendChatMessageToPlayer(player, "~g~Drive to the next point " + taskdone.ToString() + "/5");
                }
                nextDes(player);
            }
            else { API.sendChatMessageToPlayer(player, "~r~You are too far away"); }
        }
    }

    public void nextDes(Client player)
    {
      
        if (misEndColshape != null)
        {
            API.deleteColShape(misEndColshape);
        }
        
        
        Random random = new Random();

        List<Vector3> des = new List<Vector3>();
        des.Add(new Vector3(825.7181, 1362.43, 349.3494));
        des.Add(new Vector3(800.0999, 1371.068, 346.5405));
        des.Add(new Vector3(735.2936, 1360.412, 338.0286));
        des.Add(new Vector3(653.0134, 1381.875, 323.9514));

      
        Vector3 despoint = des[random.Next(des.Count)];
        
        misEndColshape = API.createCylinderColShape(despoint, 5F, 3F);

      
       API.triggerClientEvent(player, "nextDes", despoint, despoint.X, despoint.Y,desblip,marker);
    }
  
}

paintJob.js

Code:

var desblip;
var marker;

API.onKeyDown.connect(function (sender, e) {
    if (e.KeyCode === Keys.E) {

        API.triggerServerEvent("StartMission");

    }

    if (e.KeyCode === Keys.Y) {

        API.triggerServerEvent("objComplete");


    }
});

API.onServerEventTrigger.connect(function (eventName, args) {
    if (eventName == "waypoint") {

        API.setWaypoint(args[0], args[1]);
      
    }

    if (eventName == "nextDes") {

        var textLabel = API.createTextLabel("Press y to complete task", args[0], 1, 1);

        if (desblip != null)
        {
          
            API.setBlipPosition(desblip, args[0]);
            API.deleteEntity(marker);
        }
        else
        {
            desblip = API.createBlip(args[0]);
            
        }
      
        marker = API.createMarker(1, args[0], new Vector3(), new Vector3(), new Vector3(2, 2, 2), 255, 0, 0, 255);
        API.attachEntity(textLabel, marker, "0", new Vector3(), new Vector3());
      
      API.setWaypoint(args[1], args[2]);

        
    }

});