Tracking down NullReferenceException?

[salmo]

I have a NullReferenceException error in my mission script that produces the error in the server log below. I need help tracking down the offending piece of code please. Mission script is also below.

SERVER LOG
=================================================
[01:06:46] System.NullReferenceException: Object reference not set to an instance of an object.
[01:06:46]
[01:06:46] Server stack trace:
[01:06:46] at Mission.DoDamage()
[01:06:46] at Mission.OnAircraftTookOff(Int32 missionNumber, String shortName, AiAircraft aircraft)
[01:06:46] at maddox.game.ABattle.OnAircraftTookOff(Int32 missionNumber, String shortName, AiAircraft aircraft)
[01:06:46] at maddox.game.ABattle.OnEventGame(GameEventId eventId, Object eventArg0, Object eventArg1, Int32 eventArgInt)
[01:06:46] at maddox.game.world.Strategy.OnEventGame(GameEventId eventId, Object eventArg0, Object eventArg1, Int32 eventArgInt)
[01:06:46] at System.Runtime.Remoting.Messaging.StackBuilderSink ._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs)
[01:06:46] at System.Runtime.Remoting.Messaging.StackBuilderSink .SyncProcessMessage(IMessage msg, Int32 methodPtr, Boolean fExecuteInContext)
[01:06:46]
[01:06:46] Exception rethrown at [0]:
[01:06:46] at System.Runtime.Remoting.Proxies.RealProxy.HandleRe turnMessage(IMessage reqMsg, IMessage retMsg)
[01:06:46] at System.Runtime.Remoting.Proxies.RealProxy.PrivateI nvoke(MessageData& msgData, Int32 type)
[01:06:46] at maddox.game.IBattle.OnEventGame(GameEventId eventId, Object eventArg0, Object eventArg1, Int32 eventArgInt)
[01:06:46] at maddox.game.GameDef.eventGame(GameEventId eventId, Object eventArg0, Object eventArg1, Int32 eventArgInt)
[01:06:46] at 2pcDPOMCAn8BIb8ysUA.NFCE7DMiT9FpQagZIAw.eventGame( GameEventId , Object , Object , Int32 )
[01:06:46] at aZ8NnuxUKValf3nKWOT.ePqQP5xS2NPR5XHeyL6.LvaJnnsnxj f(GameEventId , Object , Object , Int32 )
[01:06:46] =================================================



using System;
using maddox.game;
using maddox.game.world;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Security.Cryptography;


public class Mission : AMission

{

string BattleStart;
List<string> connections = new List<string>();
//List<string> BlueBomberMissions = new List<string> {"Dorniers.mis", "Stukas.mis", "Heinkels.mis" };
//List<string> BlueFighterMissions = new List<string>("Bf109E.mis", "G50.mis");
//List<string> BlueShipMissions = new List<string> { "Ships1.mis" };
//List<string> RedBomberMissions = new List<string>("Spit_Mk1.mis", "Hurricane(Rotol).mis");
//List<string> RedFighterMissions = new List<string>("Blenheim_Mk1");

//paths to missions
string BlueMissionPath = "missions/Multi/Dogfight/aus1/blue/";
string RedMissionPath = "missions/Multi/Dogfight/aus1/red/";

// Web statistics page
bool HasStats = true; // show stats on a web page?
string StatsServerURL = @"aus.no-ip.org/aus/nations@war/COD/"; // URL & directory for stats page
string ServerName = "AUS_Nations@War Cliffs of Dover Server"; // name of the game server (appears on stats page)

// initialise some variables
AiAircraft PlayerPlane;
bool BlueShips = false;
bool RedShips = false;
bool RedTrains = false;

// allowed to change only in constructor
private readonly Random m_random;

// Constructor (do not call manually)
public Mission()
{
// initialize a new instance of the Random class
var provider = new RNGCryptoServiceProvider();
var buffer = new byte[4];
provider.GetBytes(buffer);
m_random = new Random(BitConverter.ToInt32(buffer, 0));

}

public override void OnBattleStarted()
{
base.OnBattleStarted();

// time the mission for messages
// MissionTimer.Start();

BattleStart = DateTime.Now.ToString("f");
connections.Clear();
}

public override void OnPlayerConnected(maddox.game.Player player)
{
connections.Add(player.Name());
WriteTable1();
//}
}

public override void OnBattleInit()
{
base.OnBattleInit();

//listen to events from all missions.
MissionNumberListener = -1;

// initial mission loads
LoadBlueSubMission();
LoadRedSubMission();

// create a log file
WriteTable1();

}

public override void OnMissionLoaded(int missionNumber)
{
// GamePlay.gpHUDLogCenter("Mission starts");
}


public override void OnBattleStoped()
{
WriteTable1();
//WriteToLogFile("Battle stopped");

}


public override void OnPlayerDisconnected(maddox.game.Player player, string diagnostic)
{
//WriteToLogFile(player.Name() + " disconnected (" + diagnostic + ")");
//then wait 15 seconds
Timeout(15.0, () =>
{
WriteTable1();
});
}

public void WriteToLogFile(string info)
{

StreamWriter sw = new StreamWriter(StatsServerURL + "index.html", true);
sw.WriteLine(DateTime.Now.ToString() + " " + info + "<br>");
sw.Close();
}

public void WriteTable1()
{
if (HasStats == true)
{



//StreamWriter sw = new StreamWriter(StatsServerURL + "index.html", false);
StreamWriter sw = new StreamWriter(@"F:\Program Files (x86)\Apache Software Foundation\Apache2.2\htdocs\aus\nations@war\COD\in dex.html", false);
sw.WriteLine("<!DOCTYPE html PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN'>");
sw.WriteLine("<html>");
sw.WriteLine("<head>");
sw.WriteLine("<meta");
sw.WriteLine("content='text/html; charset=ISO-8859-1'");
sw.WriteLine("http-equiv='content-type'>");
sw.WriteLine("<title></title>");
sw.WriteLine("</head>");
sw.WriteLine("<body>");
sw.WriteLine("<img src='il2banner.jpg' alt=''>");
sw.WriteLine("<h2>");
sw.WriteLine(ServerName);
sw.WriteLine("</h2>");
sw.WriteLine("<br>");
sw.WriteLine("<b>Battle started on:</b> " + BattleStart);
sw.WriteLine("<br>");
sw.WriteLine("<br><br>");
sw.WriteLine("<table style='text-align: left; width: 571px border='1' cellpadding='2' cellspacing='2'>");
sw.WriteLine("<tbody>");
sw.WriteLine("<tr>");
sw.WriteLine("<td");
sw.WriteLine("style='width: 240px; font-weight: bold; text-align: center;'>");
sw.WriteLine("<span' style='color: rgb(255, 0, 0);'>RED</span></td>");
sw.WriteLine("<td style='width: 62px; font-weight: bold; text-align: center;'></td>");
sw.WriteLine("<td style='width: 241px; font-weight: bold; text-align: center;'><span style='color: rgb(0, 0, 153);'>BLUE</span></td>");
sw.WriteLine("</tr>");
sw.WriteLine("<tr>");
sw.WriteLine("<td style='width: 240px; text-align: center;'>");
sw.WriteLine(NumberOfPlayers(1));
sw.WriteLine("</td>");
sw.WriteLine("<td style='width: 62px; text-align: center;'></td>");
sw.WriteLine("<td style='width: 241px; text-align: center;'>");
sw.WriteLine(NumberOfPlayers(2));
sw.WriteLine("</td>");
sw.WriteLine("</tr>");
sw.WriteLine("<tr>");
sw.WriteLine("<td style='width: 240px;'></td>");
sw.WriteLine("<td style='width: 62px;'></td>");
sw.WriteLine("<td style='width: 241px;'></td>");
sw.WriteLine("</tr>");
sw.WriteLine("</tbody>");


// write the players list table
sw.WriteLine("<table style='text-align: left; width: 574px;' border='1' cellpadding='0' cellspacing='0'>");
sw.WriteLine("<tbody>");
sw.WriteLine("<tr>");
sw.WriteLine("<td style='text-align: center; font-weight: bold; width: 243px; background-color: rgb(204, 204, 204);'>PLAYER</td>");
sw.WriteLine("<td style='text-align: center; font-weight: bold; width: 242px; background-color: rgb(204, 204, 204);'>AIRCRAFT</td>");
sw.WriteLine("<td style='text-align: center; font-weight: bold; width: 61px; background-color: rgb(204, 204, 204);'>PING</td>");
sw.WriteLine("</tr>");

//Stats[] Statistics = maddox.game.IPlayer.GetBattleStat();
//Stats[] Statistics = maddox.game.IPlayerStat();
//GamePlay.gpHUDLogCenter(Statistics.GetUpperBound);


Player[] Players = GamePlay.gpRemotePlayers();
//if ((Players.Length <=0) || (Players.Length == null))
//{
// return;
//}
int i = 0;
string txtColor = "";
string bgColor = "";
foreach (Player p in Players)
{
i++;
sw.WriteLine("<tr>");

// get the table row background color
if (i % 2 == 0)
{ // it's an even number row
bgColor = "rgb(0, 0, 0)";
}
else
{
// it's an odd number row
bgColor = "rgb(240, 240, 240)";
}

// get the text forecolor
if (p.Army() == 1) // allied army
{
txtColor = "color: rgb(255, 0, 0)";
}
else if (p.Army() == 2) // axis army
{
txtColor = "color: rgb(0, 0, 153)";
}
else
{
// player has no army
txtColor = "color: rgb(102, 102, 102)";
}

// write a line for each player online
sw.WriteLine("<td style='width: 243px;'><span style='" + txtColor + ";'>");
sw.WriteLine(" " + p.Name());
sw.WriteLine("</span></td>");
sw.WriteLine("<td style='width: 242px; background-color: " + bgColor + " text-align: left;'>");


//sw.WriteLine(p.AiAircraft.Type());
// PlayerPlane
//sw.WriteLine(" " + (AiAircraft)GamePlay.gpPlayer().Place());

//sw.WriteLine(" Players plane goes here"); //(p.plane);



//sw.Writeline(" {0}", new object[] { (actor as AiAircraft).Type() });
sw.WriteLine("</td>");
sw.WriteLine("<td style='width: 61px; background-color: " + bgColor + " text-align: center;'>");
sw.WriteLine(" " + p.Ping());
sw.WriteLine("</td>");
sw.WriteLine("</tr>");

}

// end the table & html text
sw.WriteLine("</tbody>");
sw.WriteLine("</table>");
sw.WriteLine("<br>");

//write connections summary
sw.WriteLine("<p>");
sw.WriteLine("Connections since battle started");
sw.WriteLine("<p>");
i = 0;
foreach (string connection in connections) // Loop through List with foreach
{
i++;
sw.WriteLine(connection + " ");
if (i % 6 == 0) // it's time for a line break
{
i = 0;
sw.WriteLine("<br>");
}
}
sw.WriteLine("</body>");
sw.WriteLine("</html>");
sw.Close();
}
}

public override void OnTrigger(int missionNumber, string shortName, bool active)
{
//call base classes OnTrigger method.
base.OnTrigger(missionNumber, shortName, active);

//if the trigger that was called is the trigger that we're looking for
if (shortName.Equals("BlueOnRadar") && active)
{
//GamePlay.gpHUDLogCenter("Radar reports large enemy formation in E2");
}
//if the trigger that was called is the trigger that we're looking for
if (shortName.Equals("TrainNorthOfDymchurch") && active)
{
sendScreenMessageTo(2, "Train sighted at Dymchurch (E4) heading north along English coast", null);
}

}

public override void OnPlaceEnter(Player player, AiActor actor, int placeIndex)
{
int army = player.Army();
string forces = "Allied";
if (army == 2)
forces = "Axis";
sendScreenMessageTo(-1, player.Name() + " joins the " + forces + " airforce", null);
WriteTable1();
}

public override void OnPlaceLeave(Player player, AiActor actor, int placeIndex)
{
base.OnPlaceLeave(player, actor, placeIndex);
Timeout(1, () =>
{ damageAiControlledPlane(actor); }
);
WriteTable1();
}

public override void OnAircraftKilled(int missionNumber, string shortName, maddox.game.world.AiAircraft aircraft)
{
//base.OnAircraftKilled(int missionNumber, string shortName, maddox.game.world.AiAircraft aircraft)
// GamePlay.gpHUDLogCenter("shortName=" + shortName + " callsign=" + aircraft.CallSign() + " callsignnumber=" + aircraft.CallSignNumber() + " Type=" + aircraft.Type() +
// " TypedName=" + aircraft.TypedName() + " hullnumber=" + aircraft.HullNumber() + " regiment=" + aircraft.Regiment() + " killed.");
}

public override void OnAircraftCrashLanded(int missionNumber, string shortName, AiAircraft aircraft)
{
base.OnAircraftCrashLanded(missionNumber, shortName, aircraft);

//GamePlay.gpHUDLogCenter("shortName=" + shortName + " callsign=" + aircraft.CallSign() + " callsignnumber=" + aircraft.CallSignNumber() + " Type=" + aircraft.Type() +
// " TypedName=" + aircraft.TypedName() + " hullnumber=" + aircraft.HullNumber() + " regiment=" + aircraft.Regiment() + " crash landed.");

Timeout(300, () =>
{ destroyPlane(aircraft); }
);
}

public override void OnAircraftLanded(int missionNumber, string shortName, AiAircraft aircraft)
{
base.OnAircraftLanded(missionNumber, shortName, aircraft);
//GamePlay.gpHUDLogCenter("shortName=" + shortName + " callsign=" + aircraft.CallSign() + " callsignnumber=" + aircraft.CallSignNumber() + " Type=" + aircraft.Type() +
// " TypedName=" + aircraft.TypedName() + " hullnumber=" + aircraft.HullNumber() + " regiment=" + aircraft.Regiment() + " landed OK.");
Timeout(300, () =>
{ destroyPlane(aircraft); }
);
}

private void destroyAiControlledPlane(AiAircraft aircraft)
{
if (isAiControlledPlane(aircraft))
{
destroyPlane(aircraft);
}
}

private void damageAiControlledPlane(AiActor actor)
{
if (actor == null || !(actor is AiAircraft))
{
return;
}

AiAircraft aircraft = (actor as AiAircraft);

if (!isAiControlledPlane(aircraft))
{
return;
}

if (aircraft == null)
{
return;
}

aircraft.hitNamed(part.NamedDamageTypes.ControlsEl evatorDisabled);
aircraft.hitNamed(part.NamedDamageTypes.ControlsAi leronsDisabled);
aircraft.hitNamed(part.NamedDamageTypes.ControlsRu dderDisabled);
aircraft.hitNamed(part.NamedDamageTypes.FuelPumpFa ilure);

int iNumOfEngines = (aircraft.Group() as AiAirGroup).aircraftEnginesNum();
for (int i = 0; i < iNumOfEngines; i++)
{
aircraft.hitNamed((part.NamedDamageTypes)Enum.Pars e(typeof(part.NamedDamageTypes), "Eng" + i.ToString() + "TotalFailure"));
}

/***Timeout (240, () =>
{explodeFuelTank (aircraft);}
);
* ***/

Timeout(300, () =>
{ destroyPlane(aircraft); }
);
}

// destroys aircraft abandoned by a player.
private bool isAiControlledPlane(AiAircraft aircraft)
{
if (aircraft == null)
{
return false;
}

Player[] players = GamePlay.gpRemotePlayers();
foreach (Player p in players)
{
if (p != null && (p.Place() is AiAircraft) && (p.Place() as AiAircraft) == aircraft)
{
return false;
}
}

return true;
}

private void destroyPlane(AiAircraft aircraft)
{
if (aircraft != null)
{
aircraft.Destroy();
}
}

public override void OnTickGame()
{
base.OnTickGame();

// if (ShipTimer_b.Elapsed.Minutes >= 60)
// {
// shipTimer_b.Stop();
// shipTimer_b.Reset();
// // destroy ships
// if ((GamePlay.gpGroundGroups(1).Length > 0) && (GamePlay.gpGroundGroups(1) != null))
// {
// foreach (AiGroundGroup group in GamePlay.gpGroundGroups(1))
// {
// if (group.Type() == AiGroundGroupType.Ship)
// {
// destroyGroundGroup(group);
// }
// }
// }
// }

// check for new day
//string tm = gpTime().ToSting();
//GamePlay.gpHUDLogCenter("" + tm);

// ======= User parameters (values in seconds, change to suit your needs) ==========
int LoadFirstMin = 901; // load sub-mission for first time after at least 15 minutes
int LoadFirstMax = 1801; // load sub-mission for first time before 30 minutes
int LoadAfterMin = 900; // thereafter load sub-mission at least every 15 min
int LoadAfterMax = 1800; // thereafter load sub-mission no longer than after 30 min

// ----- check sub-mission timing parameters for errors -------
if (LoadFirstMax < LoadFirstMin)
{
LoadFirstMax = LoadFirstMin;
}
if (LoadAfterMax < LoadAfterMin)
{
LoadAfterMax = LoadAfterMin;
}
// -------------------------------------------------------------

// ------ Convert sub-mission timing parameters to game ticks -----
// LoadFirst = number of ticks before first loading sub-mission
// LoadAfter = number of ticks thereafter before loading sub-mission again
int LoadFirst = m_random.Next(LoadFirstMin * 30, LoadFirstMax * 30);
int LoadAfter = m_random.Next(LoadAfterMin * 30, LoadAfterMax * 30);
if (LoadAfter >= LoadFirst)
{
LoadAfter = LoadFirst - 1; // second parameter must always be less than first parameter
}
// -------------------------------------------------------------

// -------- Load the sub-mission -------------------------------
if (Time.tickCounter() % LoadFirst == LoadAfter)
{
LoadBlueSubMission();
LoadRedSubMission();
}
}

public void LoadBlueSubMission()
{
bool BlueBombers = false;
//GamePlay.gpPostMissionLoad(BlueMissionPath + BlueBomberMissions[(m_random.Next(0, BlueBomberMissions.Count)]);

switch (m_random.Next(1, 5 + 1))
{
case 1: // single Dornier staffel
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/blue/Dorniers.mis");
sendScreenMessageTo(2, "Dornier Staffel activated", null);
//GamePlay.gpHUDLogCenter("Dornier Staffel activated");
BlueBombers = true;
break;

case 2: // single stuka staffel
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/blue/Stukas.mis");
sendScreenMessageTo(2, "Stuka Staffel activated", null);
//GamePlay.gpHUDLogCenter("Stuka Staffel activated");
BlueBombers = true;
break;

case 3: // single Heinkel staffel
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/blue/Heinkels.mis");
sendScreenMessageTo(2, "Heinkel Staffel activated", null);
//GamePlay.gpHUDLogCenter("Heinkel Staffel activated");
BlueBombers = true;
break;

case 4: // two stuka staffels
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/blue/Stukas.mis");
//GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/blue/Stukas.mis");
sendScreenMessageTo(2, "Stuka Staffels activated", null);
//GamePlay.gpHUDLogCenter("Stuka Staffels activated");
BlueBombers = true;
break;

case 5: // ship convoy with 2 x 109E escorts
if (BlueShips == true)
break;
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/blue/Ships1.mis");
sendScreenMessageTo(1, "German ships sighted in I2 heading north-east along French coast", null);
sendScreenMessageTo(2, "Kriegsmarine ships in I2 heading north-east requesting Luftwaffe air cover", null);
//GamePlay.gpHUDLogCenter("German ships sighted in F2 heading north-east along French coast");
BlueBombers = false;
BlueShips = true;
Timeout(3600.0, () => // wait 1 hour
{
destroyShips(2); // destroy all blue ships
BlueShips = false;
});
break;

default:
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/blue/Stukas.mis");
sendScreenMessageTo(2, "Stuka Staffel activated", null);
//GamePlay.gpHUDLogCenter("Stuka Staffel activated");
break;
}

// blue fighter escorts?
if (BlueBombers == true)
{
if (m_random.Next(1, 100 + 1) < 51) // 50% chance of blue fighter escorts
{
if (m_random.Next(1, 100 + 1) < 67) // 66% chance of Me109 escort
{
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/blue/Bf109E.mis");
if (m_random.Next(1, 100 + 1) < 34) // 33% chance of double escort fighters
{
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/blue/Bf109E.mis");
}
sendScreenMessageTo(2, "Me109 Staffel activated", null);
//GamePlay.gpHUDLogCenter("Me109 Staffel activated");
}
else
{ // 33% chance of G50 escort
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/blue/G50.mis");
if (m_random.Next(1, 100 + 1) < 34) // 33% chance of double escort fighters
{
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/blue/G50.mis");
}
sendScreenMessageTo(2, "G50 Gruppe activated", null);
//GamePlay.gpHUDLogCenter("G50 Gruppe activated");
}
}
}

// blue free huntering fighters
if (m_random.Next(1, 100 + 1) < 34) // 33% chance of free hunting blue fighters
{
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/blue/Bf109E2_freehunt1.mis");
sendScreenMessageTo(2, "Me109 Staffel activated", null);
}
}

public void LoadRedSubMission()
{
switch (m_random.Next(1, 6 + 1))
{
case 1: // single blenheim squadron
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/red/Blenheim_Mk1.mis");
sendScreenMessageTo(1, "Blenheims requesting escort: Meet F5 in 5 min alt 3,900 ft (1200m)", null);
//GamePlay.gpHUDLogCenter("Blenheim Squadron activated");
break;

case 2: // single spitfire squadron
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/red/Spit_Mk1.mis");
sendScreenMessageTo(1, "Spitfire Squadron activated", null);
//GamePlay.gpHUDLogCenter("Spitfire Squadron activated");
break;

case 3: // single hurricane squadron
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/red/Hurricane(Rotol).mis");
sendScreenMessageTo(1, "Hurricane Squadron activated", null);
//GamePlay.gpHUDLogCenter("Hurricane Squadron activated");
break;

case 4: // single Defiant squadron
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/red/Defiant.mis");
sendScreenMessageTo(1, "Defiant Squadron activated", null);
break;

case 5: // allied ship convoy
if (RedShips == true)
break;
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/red/ships1.mis");
sendScreenMessageTo(2, "Allied ships sighted in C3 heading north-east along English coast", null);
sendScreenMessageTo(1, "Allied ships in C3 heading north-east requesting RAF air cover", null);
//GamePlay.gpHUDLogCenter("German ships sighted in F2 heading north-east along French coast");
RedShips = true;
Timeout(3600.0, () => // wait 1 hour
{
destroyShips(1); // destroy all red ships
RedShips = false;
});
break;

case 6: // Allied train leaving New Romney for Folkstone
if (RedTrains == true)
break;
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/red/train1.mis");
sendScreenMessageTo(2, "Train sighted leaving New Romney (E3) heading north along English coast", null);
Timeout(2700.0, () => // wait 3/4 hour
{
destroyTrains(1); // destroy all red trains
RedTrains = false;
});
break;

default:
GamePlay.gpPostMissionLoad("missions/Multi/Dogfight/aus1/red/Hurricane(Rotol).mis");
sendScreenMessageTo(1, "Hurricane Squadron activated", null);
//GamePlay.gpHUDLogCenter("Hurricane Squadron activated");
break;
}
}

private int NumberOfPlayers(int Army)
{ // gets the number of players for the specified army (1=red; 2=blue)
int i = 0;
foreach (Player p in GamePlay.gpRemotePlayers())
{
if (p.Army() == Army)
i++;
}

return i;
}


internal ISectionFile RandomiseMission()
{
//time of day
bool RandomiseTime = true;
int minTime = 6; // 6am
int maxTime = 8; // 8am
// WeatherIndex
bool RandomiseWeatherIndex = true;
int minWeatherIndex = 0; // clear
int maxWeatherIndex = 2; // medium clouds
// cloud height
bool RandomiseClouds = true;
int minClouds = 500; // 500m
int maxClouds = 1500; // 1500m
// BreezeActivity
bool RandomiseBreezeActivity = true;
int minBreezeActivity = 0; // zero breeze
int maxBreezeActivity = 10; // max breeze
// ThermalActivity
bool RandomiseThermalActivity = true;
int minThermalActivity = 0; // zero thermals
int maxThermalActivity = 10; // max thermals

ISectionFile secfile = GamePlay.gpCreateSectionFile();

// time of day
if (RandomiseTime == true)
{
string value = (m_random.Next(minTime * 100, (maxTime) * 100) / 100f).ToString();
secfile.add("MAIN", "TIME", value);
}

// WeatherIndex
if (RandomiseWeatherIndex == true)
{
string value = m_random.Next(minWeatherIndex, maxWeatherIndex + 1).ToString();
secfile.add("MAIN", "WeatherIndex", value);
}

// clouds
if (RandomiseClouds == true)
{
string value = m_random.Next(minClouds, maxClouds + 1).ToString();
secfile.add("MAIN", "CloudsHeight", value);
}

// minBreezeActivity
if (RandomiseBreezeActivity == true)
{
string value = m_random.Next(minBreezeActivity, maxBreezeActivity + 1).ToString();
secfile.add("MAIN", "BreezeActivity", value);
}

// ThermalActivity
if (RandomiseThermalActivity == true)
{
string value = m_random.Next(minThermalActivity, maxThermalActivity + 1).ToString();
secfile.add("MAIN", "ThermalActivity", value);
}

// This post loads the section file secfile into the current battle.
// It's also possible to save the section file secfile first by secfile.save("filename") and then
// call GamePlay.gpPostMissionLoad("filename"); if you want to save the randomised file
// on your hard disk.
GamePlay.gpPostMissionLoad(secfile);
return secfile;
}

public override void OnAircraftTookOff(int missionNumber, string shortName, maddox.game.world.AiAircraft aircraft)
{
if (m_random.Next(1, 200 + 1) != 67) // 0.5% chance of takeoff failure
{
DoDamage();
}
}


private void DoDamage()
{ // Script that triggered an accidental damage to the player plane
// Author: FG28_Kodiak Modified by: Salmo
// Ref: http://forum.1cpublishing.eu/showthread.php?t=22184

PlayerPlane = (AiAircraft)GamePlay.gpPlayer().Place();
switch (m_random.Next(1, 7 + 1))
{
// ===================================
// ---- Engine(s) failures ----
// ===================================
case 1:
PlayerPlane.hitNamed(part.NamedDamageTypes.Eng0Tot alFailure);
//sendScreenMessageToPilot(PlayerPlane, "Engine Failure", null);
//GamePlay.gpHUDLogCenter("Engine Failure");
break;

case 2:
PlayerPlane.hitNamed(part.NamedDamageTypes.Eng0Oil SecondariesFire);
//sendScreenMessageToPilot(aircraft, "Oil is on fire");
GamePlay.gpHUDLogCenter("Oil is on fire");
break;

// ===================================
// ---- Hydrolicss & cables failures ----
// ===================================
case 3:
if (m_random.Next(1, 2) == 1)
{
PlayerPlane.hitNamed(part.NamedDamageTypes.Underca rriageUpLockFailureL);
//sendScreenMessageToPilot(aircraft, "Undercarriage failure");
GamePlay.gpHUDLogCenter("Undercarriage failure");
}
else
{
PlayerPlane.hitNamed(part.NamedDamageTypes.Underca rriageUpLockFailureR);
//sendScreenMessageToPilot(aircraft, "Undercarriage failure");
GamePlay.gpHUDLogCenter("Undercarriage failure");
}
break;

case 4:
PlayerPlane.hitNamed(part.NamedDamageTypes.Eng0Thr ottleControlBroken);
//sendScreenMessageToPilot(aircraft, "Broken throttle cable");
GamePlay.gpHUDLogCenter("Broken throttle cable");
break;

// ===================================
// ---- Flight surfaces failures ----
// ===================================
case 5:
PlayerPlane.hitNamed(part.NamedDamageTypes.Control sElevatorDisabled);
//sendScreenMessageToPilot(aircraft, "Elevator jammed");
GamePlay.gpHUDLogCenter("Elevator jammed");
break;

case 6:
PlayerPlane.hitNamed(part.NamedDamageTypes.Control sAileronsDisabled);
//sendScreenMessageToPilot(aircraft, "Ailerons jammed");
GamePlay.gpHUDLogCenter("Ailerons jammed");
break;

case 7:
PlayerPlane.hitNamed(part.NamedDamageTypes.Control sRudderDisabled);
//sendScreenMessageToPilot(aircraft, "Rudder jammed");
GamePlay.gpHUDLogCenter("Rudder jammed");
break;

default:
PlayerPlane.hitNamed(part.NamedDamageTypes.Eng0Tot alFailure);
//sendScreenMessageToPilot(aircraft, "Engine Failure");
GamePlay.gpHUDLogCenter("Engine Failure");
break;

}

}

private void sendScreenMessageTo(int army, string msg, object[] parms)
{
List<Player> Players = new List<Player>();

// on Dedi the server or for singleplayertesting
if (GamePlay.gpPlayer() != null)
{
if (GamePlay.gpPlayer().Army() == army || army == -1)
Players.Add(GamePlay.gpPlayer());
}
if (GamePlay.gpRemotePlayers() != null || GamePlay.gpRemotePlayers().Length > 0)
{
foreach (Player p in GamePlay.gpRemotePlayers())
{
if (p.Army() == army || army == -1)
Players.Add(p);
}
}
if (Players != null && Players.Count > 0)
GamePlay.gpHUDLogCenter(Players.ToArray(), msg, parms);
}


private void sendChatMessageTo(int army, string msg, object[] parms)
{
List<Player> Players = new List<Player>();
// on Dedi the server:
if (GamePlay.gpPlayer() != null)
{
if (GamePlay.gpPlayer().Army() == army || army == -1)
Players.Add(GamePlay.gpPlayer());
} //rest of the crowd
if (GamePlay.gpRemotePlayers() != null || GamePlay.gpRemotePlayers().Length > 0)
{
foreach (Player p in GamePlay.gpRemotePlayers())
{
if (p.Army() == army || army == -1)
Players.Add(p);
}
}
if (Players != null && Players.Count > 0)
GamePlay.gpLogServer(Players.ToArray(), msg, parms);
}

private void sendScreenMessageToPilot(AiAircraft aircraft, string msg, object[] parms)
{
GamePlay.gpHUDLogCenter(new Player[] { aircraft.Player(0) }, msg, null);
}

private void sendScreenMessageToAllCrew(AiAircraft aircraft, string msg, object[] parms)
{
for (int i = 0; i < aircraft.Places(); i++)
if (aircraft.Player(i) != null)
GamePlay.gpHUDLogCenter(new Player[] { aircraft.Player(i) }, msg, null);
}

private void destroyShips(int army)
{
if (GamePlay.gpGroundGroups(1).Length == 0 || GamePlay.gpGroundGroups(army) == null || (army != 1 && army != 2))
return;

foreach (AiGroundGroup group in GamePlay.gpGroundGroups(army))
{
if (group.GroupType() == AiGroundGroupType.Ship)
{
destroyGroundGroup(group);
}
}
}

private void destroyTrains(int army)
{
if (GamePlay.gpGroundGroups(1).Length == 0 || GamePlay.gpGroundGroups(army) == null || (army != 1 && army != 2))
return;

foreach (AiGroundGroup group in GamePlay.gpGroundGroups(army))
{
if (group.GroupType() == AiGroundGroupType.Train)
{
destroyGroundGroup(group);
}
}
}


private void destroyGroundGroup(AiGroundGroup group)
{
if (group != null)
{
foreach (AiActor actor in group.GetItems())
{
(actor as AiGroundActor).Destroy();
}
}
}
}

[41Sqn_Banks]

Just a guess: gpPlayer() returns null if you are hosting it on a dedicated server and gpPlayer().Place() returns null if the player is not within an vehicle.


private void DoDamage()
{ // Script that triggered an accidental damage to the player plane
// Author: FG28_Kodiak Modified by: Salmo
// Ref: http://forum.1cpublishing.eu/showthread.php?t=22184

if(GamePlay.gpPlayer() != null && GamePlay.gpPlayer().Place() != null && GamePlay.gpPlayer().Place() is AiAircraft)
{
PlayerPlane = (AiAircraft)GamePlay.gpPlayer().Place();
...
}
}

[salmo]

Thanks Banks, I thought the same, so I've played with removing the Dodamage() call etc but it did not fix the error. So while your code suggestion is more elegant (& I've implimented it), it doesnt fix the NullReferenceException error :confused:

[ATAG_Bliss]

Hi Salmo,

I've been seeing this error through the dedi box since the game was released (scripts or not). There's still a huge disconnect between running missions through the in-game GUI and running them through the -server.

Nice stuff you've done with scripting btw!

[FG28_Kodiak]

@salmo:

Modified:


public override void OnAircraftTookOff(int missionNumber, string shortName, AiAircraft aircraft)
{
if (m_random.Next(1, 200 + 1) != 67) // 0.5% chance of takeoff failure
{
DoDamage(aircraft);
}
}


private void DoDamage(AiAircraft aircraft)
{ // Script that triggered an accidental damage to the player plane
// Author: FG28_Kodiak Modified by: Salmo
// Ref: http://forum.1cpublishing.eu/showthread.php?t=22184


if (aircraft.Player(0) == null) return; // If no human pilot leave

switch (m_random.Next(1, 7 + 1))
{
// ===================================
// ---- Engine(s) failures ----
// ===================================
case 1:
aircraft.hitNamed(part.NamedDamageTypes.Eng0TotalF ailure);
//sendScreenMessageToPilot(PlayerPlane, "Engine Failure", null);
//GamePlay.gpHUDLogCenter("Engine Failure");
break;

case 2:
aircraft.hitNamed(part.NamedDamageTypes.Eng0OilSec ondariesFire);
//sendScreenMessageToPilot(aircraft, "Oil is on fire");
GamePlay.gpHUDLogCenter("Oil is on fire");
break;

// ===================================
// ---- Hydrolicss & cables failures ----
// ===================================
case 3:
if (m_random.Next(1, 2) == 1)
{
aircraft.hitNamed(part.NamedDamageTypes.Undercarri ageUpLockFailureL);
//sendScreenMessageToPilot(aircraft, "Undercarriage failure");
GamePlay.gpHUDLogCenter("Undercarriage failure");
}
else
{
aircraft.hitNamed(part.NamedDamageTypes.Undercarri ageUpLockFailureR);
//sendScreenMessageToPilot(aircraft, "Undercarriage failure");
GamePlay.gpHUDLogCenter("Undercarriage failure");
}
break;

case 4:
aircraft.hitNamed(part.NamedDamageTypes.Eng0Thrott leControlBroken);
//sendScreenMessageToPilot(aircraft, "Broken throttle cable");
GamePlay.gpHUDLogCenter("Broken throttle cable");
break;

// ===================================
// ---- Flight surfaces failures ----
// ===================================
case 5:
aircraft.hitNamed(part.NamedDamageTypes.ControlsEl evatorDisabled);
//sendScreenMessageToPilot(aircraft, "Elevator jammed");
GamePlay.gpHUDLogCenter("Elevator jammed");
break;

case 6:
aircraft.hitNamed(part.NamedDamageTypes.ControlsAi leronsDisabled);
//sendScreenMessageToPilot(aircraft, "Ailerons jammed");
GamePlay.gpHUDLogCenter("Ailerons jammed");
break;

case 7:
aircraft.hitNamed(part.NamedDamageTypes.ControlsRu dderDisabled);
//sendScreenMessageToPilot(aircraft, "Rudder jammed");
GamePlay.gpHUDLogCenter("Rudder jammed");
break;

default:
aircraft.hitNamed(part.NamedDamageTypes.Eng0TotalF ailure);
//sendScreenMessageToPilot(aircraft, "Engine Failure");
GamePlay.gpHUDLogCenter("Engine Failure");
break;

}

}

[Octocat]

Cool. Simple modification, to add a random delay before failure:

public override void OnAircraftTookOff(int missionNumber, string shortName, AiAircraft aircraft)
{
if (m_random.Next(1, 200 + 1) != 67) // 0.5% chance of takeoff failure
{
Timeout(m_random.Next(1, 60), ()=> DoDamage(aircraft));
}
}

Also, in dynamic campaign, the chance of failure may depend on the aircraft aging, and damages in previous missions.