/// <summary>
/// template method
/// </summary>
/// <param name="driveContainer"></param>
/// <param name="mobile"></param>
internal virtual void DriveMobile(StaticOBJ driveCtx, MobileOBJ mobile)
{
var dctx = this.Observe(driveCtx, mobile);
switch (driveCtx.EntityType)
{
//use way as container for lane changing
case EntityType.Lane:
this.WayDriver.DriveMobile(mobile, dctx);
break;
case EntityType.XNode:
this.XNodeDriver.DriveMobile(mobile, dctx);
break;
default:
ThrowHelper.ThrowArgumentException("不正确的参数");
break;
}
mobile.iAcceleration = Math.Max(dctx.Params.iAcceleration, 1);
mobile.iSpeed = dctx.Params.iSpeed;
}
protected MobileOBJ(StaticOBJ bornContainer)
{
this._entityID = ++TrafficOBJ.EntityCounter;
this.Route = new EdgeRoute();
this._container = bornContainer;
}
internal void Run(StaticOBJ DriveEnvirnment)
{
this.Driver.DriveMobile(DriveEnvirnment, this);
}
///////////////////////////////////////////////////
internal DriveCtx Observe(StaticOBJ driveEn, MobileOBJ mobile)
{
DriveCtx dctx = new DriveCtx(driveEn);
dctx.iAcceleration = mobile.iAcceleration;
dctx.iSpeed = mobile.iSpeed;
switch (driveEn.EntityType)
{
// calculate headway on the left/right/current lane of current mobile
case EntityType.Lane:
var currLane = mobile.Container as Lane;
var currWay = currLane.Container as Way;
//current mobile
int iCurrStart = currLane.Shape.GetIndex(mobile.Shape.Start);
//current mobile
int iCurrEnd = currLane.Shape.GetIndex(mobile.Shape.End);
// int iLaneGap = currLane.iLength-iCurrentStart;
if (mobile.Front != null)
{
//behiand 14 .front 15. iLaneGap need to reduce 1
dctx.iLaneGap = currLane.Shape.GetIndex(mobile.Front.Shape.End) - iCurrStart - 1;
dctx.iFrontSpeed = mobile.Front.iSpeed;
dctx.iXNodeGap = 0;
dctx.iFrontHeadWay = dctx.iLaneGap + dctx.iXNodeGap;
}
//front mobile is null, current mobile is the first one on this lane
//the first mobile needs to deal with a traffic light or/and a crossing(XNode)
else //this.FrontMobile==null)
//front mobile,there's a signal light playing on the lane
//deal with that signal light
{
if (currLane.IsBlocked == true)
{
dctx.iFrontHeadWay = currLane.Length - iCurrStart;
}
//deal with that crossing
else //the current mobile is the first one to deal with a crossing
//先计算车辆的轨迹，where a mobile is heading for. right .left or straight forward
{
int iXNodeGap = 0;
int iLaneGap = currLane.Length - 1 - iCurrStart;
if (iLaneGap <= 3 * mobile.iSpeed) //space si more than triple car speed.
{
mobile.Track.Update();
if (mobile.Track.ToLane != null)
{
//class acts as parameters will pass its address to functions,so clone is used here
var temp = currLane.Shape.End;
// if (this.ID == 2) {
// ;
// }
//再计算剩余轨迹
GetXNodeGap(currWay.To, temp, out iXNodeGap, mobile);
}
else //toLane == null. reach destination
{
dctx.IsReachEnd = true;
iXNodeGap = 10; //to let the first car go away
iLaneGap = 0;
}
}
dctx.iXNodeGap = iXNodeGap;
dctx.iLaneGap = iLaneGap;
dctx.iFrontHeadWay = iXNodeGap + iLaneGap;
dctx.iFrontSpeed = -1;
}
}
//rear mobile
dctx.iRearHeadWay = iCurrStart;
if (mobile.Rear != null)
{
dctx.iRearHeadWay = iCurrEnd - currLane.Shape.GetIndex(mobile.Rear.Shape.Start);
dctx.iRearSpeed = mobile.Rear.iSpeed;
}
else //rear mobile is empty
{
dctx.iRearHeadWay = iCurrStart; //rear mobiel
dctx.iRightRearSpeed = -1;
}
//get dirving context on the left lane
this.GetSidesContext(currLane.Left, LaneType.Left, iCurrStart, iCurrEnd, ref dctx);
//get dirving context on the right lane
this.GetSidesContext(currLane.Right, LaneType.Right, iCurrStart, iCurrEnd, ref dctx);
break;
case EntityType.XNode:
var xnode = driveEn as XNode;
int iLaneEnGap = 0;
int iXNodeEnGap = 0;
//计算剩余轨迹数量//如果pcurrPos没到头，iXnodeGap等于零
//when a mobile is on a xnode .its headway is xnodeGap for a secend mobile
//the frist mobile bIsBlocked is never true;while its following may be true
var bIsBlocked = this.GetXNodeGap(xnode, mobile.Track.Current, out iXNodeEnGap, mobile);
if (bIsBlocked == false) //the first mobile
{
var toLane = mobile.Track.ToLane;
//计算车道上的长度
if (toLane != null) //no destination lane means a mobile has reach its destnation.
{
if (toLane.MobilesInn.Count > 0) //theres already mobiles waiting to enter tolane.
{
iLaneEnGap = 0;
}
else
{
var lastMobile = toLane.Mobiles.Last;
if (lastMobile != null)
{
iLaneEnGap = toLane.Shape.GetIndex(lastMobile.Value.Shape.End);
}
else //no mobiles running at tolane
{
iLaneEnGap = toLane.Length;
}
}
}
}
else //the a mobile blocked by its previous mobile on a xnode
{
iLaneEnGap = 0;
}
dctx.iLaneGap = iLaneEnGap;
dctx.iXNodeGap = iXNodeEnGap;
dctx.iFrontHeadWay = iXNodeEnGap + iLaneEnGap;
break;
case EntityType.Way:
throw new NotImplementedException("不应该传入这个参数，应在在车道上，或者是交叉口上");
break;
default: break;
}
return(dctx);
}
