Oolite Bulletins

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var ship = station.launchShipWithRole("trader")

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if (ship.isValid) ship.remove(true);

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this.buoy = new Array();
this.segmentName = "Navigation Buoy Segment";

this.shipSpawned = function ()
{
	if (this.ship.subEntities.length > 3) // has a segmented buoy.
	{
		this.position = 0; // means segments in folded position.
		var j = 0;
		for (var i = 0; i < this.ship.subEntities.length; i++)
		{
			// copy all buoy parts into a new array to avoid problems with changing subEntity ordering.
			if (this.ship.subEntities[i].name == this.segmentName) this.buoy[j++] = this.ship.subEntities[i];
		}
	}

	// This version starts with folded buoy to allow launches with it.
	this.unfoldTimer = new Timer(this, this.unfoldBuoy, 5.0);
}


this.entityDestroyed = function ()
{
    this.$cleanupTimers();
}

this.foldBuoy = function ()
{
    if (this.buoy.length == 3)
    {
        // the ship still has all the segments, so proceed with folding.
        this.movement = -0.02;
        if (!isValidFrameCallback(this.$callbackID)) this.$callbackID = addFrameCallback(this.moveBuoySegments.bind(this));
    }
}

this.unfoldBuoy = function ()
{
    if (this.buoy.length == 3)
    {
        // the ship still has all the segments, so proceed with unfolding.
        this.movement = 0.02;
        if (!isValidFrameCallback(this.$callbackID)) this.$callbackID = addFrameCallback(this.moveBuoySegments.bind(this));
    }
}

this.moveBuoySegments = function (delta)
{
    if (!delta) delta = 0.25;
    if (!this.ship || !this.ship.isValid || !this.ship.status || this.buoy.length < 3) {this.$cleanupTimers();return;};
    this.position += this.movement * delta;
    if (this.position >= 1) // buoy is unfolded
    {
        this.$cleanupTimers();
        this.position = 1;
    }
    if (this.position <= 0) // buoy is folded
    {
        this.$cleanupTimers();
        this.position = 0;
    }
    this.buoy[1].orientation = [1, this.position, 0, 0]; // Oolite wil normalise the quaternion for us on assignment.
    this.buoy[2].orientation = [1, 0, 0, this.position];
}

this.$cleanupTimers = function ()
{
	if (this.$callbackID && isValidFrameCallback(this.$callbackID))
	{ 
		removeFrameCallback(this.$callbackID);
        delete this.$callbackID;
	}
    if (this.unfoldTimer)
    {
        this.unfoldTimer.stop();
        delete this.unfoldTimer;
    }
}

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this.name      = "landing_gear"; 
this.author    = "griff"; 
this.copyright = "� 2008 griff."; 
this.version   = "1.01";

this._findSubEntity = function(key)
					{
					for (var i = this.ship.subEntities.length - 1 ; i >=0 ; --i)
						{
						if (this.ship.subEntities[i].dataKey == key)
							{
							return this.ship.subEntities[i];
							}
						}
						return null; // couldn't find it.
					}

this.retractGear = function()

{
   this.ship.commsMessage("retracted");

   var actuatorsR = this._findSubEntity("HPC_actuatorR"); 
               if (actuatorsR)
               {
                  actuatorsR.position = [0, 6.155206, 2.648078];
               }
	var actuatorsF = this._findSubEntity("HPC_actuatorF");
               if (actuatorsF)
               {
                  actuatorsF.position = [0, 3.80, -21.3];
               }
   var reargearextendPRT = this._findSubEntity("HPC_reargearPRT");
                  if (reargearextendPRT)
               {
               reargearextendPRT.position = [-17.392771, -8.961073, 2.796213];
			   reargearextendPRT.orientation = [0.9953, 0.0908, 0, 0];
               }
   var reargearextendSTB = this._findSubEntity("HPC_reargearSTB");
                  if (reargearextendSTB)
               {
               reargearextendSTB.position = [17.552752, -8.847222, 3.028129];
			   reargearextendPRT.orientation = [-0.9953, -0.0908, 0, 0];
               }
	var frontgearextendPRT = this._findSubEntity("HPC_frontgearPRT");
                  if (frontgearextendPRT)
               {
               frontgearextendPRT.position = [-13.038872, -5.954015, 25.049587];
			   reargearextendPRT.orientation = [0, 0, 0.9959, -0.0905];
               }
	var frontgearextendSTB = this._findSubEntity("HPC_frontgearSTB");
                  if (frontgearextendSTB)
               {
               frontgearextendSTB.position = [13.038872, -5.954015, 25.049587];
			   reargearextendPRT.orientation = [0.9959, 0.0905, 0, 0];
               }
	   
}

this.extendGear = function()
{

		var actuatorsR = this._findSubEntity("HPC_actuatorR"); 
               if (actuatorsR)
               {
                  actuatorsR.position = [0,0,0];
               }
		var actuatorsF = this._findSubEntity("HPC_actuatorF"); 
               if (actuatorsF)
               {
                  actuatorsF.position = [0,0,0];
               }
		var reargearextendPRT = this._findSubEntity("HPC_reargearPRT");
                  if (reargearextendPRT)
               {
               reargearextendPRT.position = [-17.351349,-17.408951,-3.749173];
               }
		var reargearextendSTB = this._findSubEntity("HPC_reargearSTB");
                  if (reargearextendSTB)
               {
               reargearextendSTB.position = [17.435233,-17.338642,-3.50929];
               }
		var frontgearextendPRT = this._findSubEntity("HPC_frontgearPRT");
                  if (frontgearextendPRT)
               {
               frontgearextendPRT.position = [-12.765342,-11.194131,27.818142];
               }
		var frontgearextendSTB = this._findSubEntity("HPC_frontgearSTB");
                  if (frontgearextendSTB)
               {
               frontgearextendSTB.position = [12.765342,-11.194131,27.818142];
               }
}					

this.playerStartedAutoPilot = function() //make LDG visible when pressing autopilot key

{
	this.ship.commsMessage("Autopilot ON");
	this.ship.commsMessage("GEAR DOWN & LOCKED");
	this.retractGear();
	this.extendGear();
	   
}

this.shipLaunchedFromStation = function(station) //make LDG invisible during startup sequence
{
	this.extendGear();
	this.tenSecTimer = new Timer(this, this.retractGear,10);
	this.ship.commsMessage("GEAR UP");
}


this.playerCancelledAutoPilot = function() 

{
	this.extendGear();
	this.retractGear();
	this.ship.commsMessage("Autopilot OFF");
	this.ship.commsMessage("GEAR UP");
	this.ship.AIState = "LIGHTS_OFF";
}

this.stationWithdrewDockingClearance = function()
{
     this.extendGear();
	 this.retractGear();
}

this.shipWillLaunchFromStation = function(station)
{
      this.retractGear();
	  this.extendGear();
}

this.shipDockedWithStation = function(station)
{
     this.retractGear();
	 this.extendGear();
}

this.shipApproachingPlanetSurface = function(planet)
{
	 this.retractGear();
	 this.extendGear();
	 this.ship.commsMessage("GEAR DOWN & LOCKED");
}

this.shipLeavingPlanetSurface = function(planet)
{
    this.extendGear(); 
	this.tenSecTimer = new Timer(this, this.retractGear,10);
	this.ship.commsMessage("GEAR UP");
}

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if(this.ship.target == system.mainStation && this.ship.position.distanceTo(this.ship.target) < 11000)
    {
		this.retractGear();
		this.extendGear();
    }

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if(this.ship.AIState = "GO_TO_STATION")
      {
      this.ship.commsMessage("debug message: GEAR DOWN & LOCKED");
		this.retractGear();
		this.extendGear();
      }