public SteeringBehavior(MovingEntity agent)
{
m_parentMovingEntity = agent;
m_iFlags = 0;
m_dDBoxLength = SteerParams.Instance.MinDetectionBoxLength;
m_dWeightCohesion = SteerParams.Instance.AppliedCohesionWeight();
m_dWeightAlignment = SteerParams.Instance.AppliedAlignmentWeight();
m_dWeightSeparation = SteerParams.Instance.AppliedSeparationWeight();
m_dWeightObstacleAvoidance = SteerParams.Instance.AppliedObstacleAvoidanceWeight();
m_dWeightWander = SteerParams.Instance.AppliedWanderWeight();
m_dWeightWallAvoidance = SteerParams.Instance.AppliedWallAvoidanceWeight();
m_dViewDistance = SteerParams.Instance.ViewDistance;
m_dWallDetectionFeelerLength = SteerParams.Instance.WallDetectionFeelerLength;
m_Feelers = new List<Vector2D>(3);
m_Deceleration = Deceleration.normal;
m_pTargetAgent1 = null;
m_pTargetAgent2 = null;
m_dWanderDistance = WanderDist;
m_dWanderJitter = WanderJitterPerSec;
m_dWanderRadius = WanderRad;
m_dWaypointSeekDistSq = WaypointSeekDist * WaypointSeekDist;
m_dWeightSeek = SteerParams.Instance.AppliedSeekWeight();
m_dWeightFlee = SteerParams.Instance.AppliedFleeWeight();
m_dWeightArrive = SteerParams.Instance.AppliedArriveWeight();
m_dWeightPursuit = SteerParams.Instance.AppliedPursuitWeight();
m_dWeightOffsetPursuit = SteerParams.Instance.AppliedOffsetPursuitWeight();
m_dWeightInterpose = SteerParams.Instance.AppliedInterposeWeight();
m_dWeightHide = SteerParams.Instance.AppliedHideWeight();
m_dWeightEvade = SteerParams.Instance.AppliedEvadeWeight();
m_dWeightFollowPath = SteerParams.Instance.AppliedFollowPathWeight();
m_SummingMethod = summing_method.prioritized;
//stuff for the wander behavior
double theta = Utils.RandFloat() * Utils.TwoPi;
//create a vector to a target position on the wander circle
m_vWanderTarget = new Vector2D(m_dWanderRadius * Math.Cos(theta), m_dWanderRadius * Math.Sin(theta));
//create a Path
m_pPath = new Path2D(true);
m_vSteeringForce = new Vector2D();
}
private Path2D CreateRandomPath()
{
Path2D pPath = new Path2D(true);
List<Vector2D> listWayPoints = new List<Vector2D>();
int NumWaypoints = 8;
double MinX = m_bordersize;
double MinY = m_bordersize;
double MaxX = m_cxClient - m_bordersize;
double MaxY = m_cyClient - m_bordersize;
double midX = (MaxX + MinX) / 2.0;
double midY = (MaxY + MinY) / 2.0;
double smaller = Math.Min(midX, midY);
double spacing = Utils.TwoPi / (double)NumWaypoints;
for (int i = 0; i < NumWaypoints; ++i)
{
double RadialDist = Utils.RandInRange(smaller * 0.2f, smaller);
Vector2D temp = new Vector2D(RadialDist, 0.0f);
Utils.Vec2DRotateAroundOrigin(temp, i * spacing);
temp.X += midX;
temp.Y += midY;
bool bOverlapped = false;
foreach (BaseGameEntity objObs in m_Obstacles)
{
if (Utils.PointInCircle(objObs.Pos, objObs.BRadius, temp))
{
bOverlapped = true;
break;
}
}
if (!bOverlapped) listWayPoints.Add(temp);
}
pPath.Set(listWayPoints);
return pPath;
}
private void RenderPath2D(Path2D objPath2D, Graphics objGraphics, Pen objPen)
{
if (objPath2D.GetPath().Count > 1)
{
IEnumerator<Vector2D> nextVec = objPath2D.GetPath().GetEnumerator();
nextVec.MoveNext();
int intCount = 0;
foreach (Vector2D objVec in objPath2D.GetPath())
{
intCount = intCount + 1;
if (!nextVec.MoveNext() && objPath2D.Loop)
{
nextVec.Reset();
nextVec.MoveNext();
}
if (Vector2D.IsNull(nextVec.Current)){ break;}
objGraphics.DrawLine(objPen, (PointF)objVec, (PointF)nextVec.Current);
objGraphics.DrawString(intCount.ToString(), mFont, Brushes.YellowGreen, (float)objVec.X, (float)objVec.Y);
}
}
}
public void Set(Path2D path)
{
m_WayPoints = path.GetPath();
m_curWaypoint = m_WayPoints.GetEnumerator();
m_bLooped = path.Loop;
m_curWaypoint.MoveNext(); // set the first item ready to go
}