source: TFP-WebServer/CommandExtensions/src/Commands/Give.cs@ 501

using System.Collections.Generic;
using JetBrains.Annotations;
using UnityEngine;

namespace CommandExtensions.Commands {
        [UsedImplicitly]
        public class Give : ConsoleCmdAbstract {
                public override string getDescription () {
                        return "give an item to a player (entity id or name)";
                }

                public override string getHelp () {
                        return "Give an item to a player by dropping it in front of that player\n" +
                               "Usage:\n" +
                               "   give <name / entity id> <item name> <amount>\n" +
                               "   give <name / entity id> <item name> <amount> <quality>\n" +
                               "Either pass the full name of a player or his entity id (given by e.g. \"lpi\").\n" +
                               "Item name has to be the exact name of an item as listed by \"listitems\".\n" +
                               "Amount is the number of instances of this item to drop (as a single stack).\n" +
                               "Quality is the quality of the dropped items for items that have a quality.";
                }

                public override string[] getCommands () {
                        return new[] {"give", string.Empty};
                }

                public override void Execute (List<string> _params, CommandSenderInfo _senderInfo) {
                        if (_params.Count != 3 && _params.Count != 4) {
                                SdtdConsole.Instance.Output ($"Wrong number of arguments, expected 3 or 4, found {_params.Count}.");
                                return;
                        }

                        ClientInfo ci = ConsoleHelper.ParseParamIdOrName (_params [0]);

                        if (ci == null) {
                                SdtdConsole.Instance.Output ("Playername or entity id not found.");
                                return;
                        }

                        ItemValue iv = ItemClass.GetItem (_params [1], true);
                        if (iv.type == ItemValue.None.type) {
                                SdtdConsole.Instance.Output ("Item not found.");
                                return;
                        }

                        iv = new ItemValue (iv.type, true);

                        if (!int.TryParse (_params [2], out int n) || n <= 0) {
                                SdtdConsole.Instance.Output ("Amount is not an integer or not greater than zero.");
                                return;
                        }

                        ushort quality = Constants.cItemMaxQuality;

                        if (_params.Count == 4) {
                                if (!ushort.TryParse (_params [3], out quality) || quality > Constants.cItemMaxQuality) {
                                        SdtdConsole.Instance.Output ("Quality is not an integer or not greater than zero.");
                                        return;
                                }
                        }

                        if (ItemClass.list [iv.type].HasSubItems) {
                                for (int i = 0; i < iv.Modifications.Length; i++) {
                                        ItemValue tmp = iv.Modifications [i];
                                        tmp.Quality = quality;
                                        iv.Modifications [i] = tmp;
                                }
                        } else if (ItemClass.list [iv.type].HasQuality) {
                                iv.Quality = quality;
                        }

                        EntityPlayer p = GameManager.Instance.World.Players.dict [ci.entityId];

                        ItemStack invField = new ItemStack (iv, n);

                        GameManager.Instance.ItemDropServer (invField, p.GetPosition (), Vector3.zero);

                        SdtdConsole.Instance.Output ("Dropped item");
                }
        }
}