public override Vector2 SteerForce()
{
if (path.Size == 0)
{
_bUsingArrive = false;
return(Vector2.zero);
}
else if (path.Size == 1)
{
_bUsingArrive = true;
arriveSensor.target = path.FirstWaypoint;
Arrive2D.SteerForce(Agent, arriveSensor);
}
if (!path.Finished())
{
_bUsingArrive = false;
return(Seek2D.SteerForce(path.CurrentWaypoint(), Agent));
}
else
{
_bUsingArrive = true;
arriveSensor.target = path.CurrentWaypoint();
return(Arrive2D.SteerForce(Agent, arriveSensor));
}
}
void OnDrawGizmosSelected()
{
if (target != null)
{
Seek2D.DrawGizmos(target.position, Agent);
}
}
public static Vector2 SteerForce(AutonomousAgent2D agent, Collider2D[] colliders, int totalCount, float detectionRadius)
{
Vector2 positionsSum = Vector2.zero;
Vector2 steering = Vector2.zero;
Vector2 agentPosition = agent.transform.position;
int count = 0;
float radiusSq = detectionRadius * detectionRadius;
for (int i = 0; i < totalCount; ++i)
{
var other = colliders[i].GetComponent <AutonomousAgent2D>();
if (other == agent)
{
continue;
}
if (agentPosition.WithinDistanceSq(other.transform.position, radiusSq))
{
count += 1;
positionsSum += (Vector2)other.transform.position;
}
}
if (count > 0)
{
// The center "mass".
Vector2 averagePosition = positionsSum / count;
return(Seek2D.SteerForce(averagePosition, agent));
}
return(Vector2.zero);
}
void OnDrawGizmosSelected()
{
if (targetRigid)
{
Seek2D.DrawGizmos(_futureSeekCache, Agent);
DrawUtil.DrawLine(_futureSeekCache, targetRigid.position, Color.green);
}
}
public override Vector2 SteerForce()
{
Vector2 mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
mousePosition += Random.insideUnitCircle.normalized * randomDisplacement;
return(Seek2D.SteerForce(mousePosition, Agent));
}
public override Vector2 SteerForce()
{
if (target != null)
{
return(Seek2D.SteerForce(target.position, Agent));
}
return(Vector2.zero);
}
void OnDrawGizmosSelected()
{
if (path.waypoints != null && path.Size != 0)
{
path.DrawGizmos();
// Draw the arrival towards the last end point (if no looping)
if (_bUsingArrive)
{
Arrive2D.DrawGizmos(Agent, arriveSensor);
}
// Show which current waypoint we are traveling to.
else
{
Seek2D.DrawGizmos(path.CurrentWaypoint(), Agent);
}
}
}
public override Vector2 SteerForce()
{
Vector2 toTarget = targetRigid.position - (Vector2)Agent.transform.position;
Vector2 targetVelocityDir = targetRigid.velocity.normalized;
float relativeForward = Vector2.Dot(Agent.ForwardDirection, targetVelocityDir);
// If the target is head on, then just seek towards it.
if (Vector2.Dot(toTarget, Agent.ForwardDirection) > 0 &&
relativeForward < -0.95f)
{
_futureSeekCache = targetRigid.position;
return(Seek2D.SteerForce(targetRigid.position, Agent));
}
float lookAheadTime = toTarget.magnitude / (Agent.maxSpeed + targetRigid.velocity.magnitude);
Vector2 future = targetRigid.position + targetRigid.velocity * lookAheadTime;
_futureSeekCache = future;
return(Seek2D.SteerForce(future, Agent));
}
public override Vector2 SteerForce()
{
return(Seek2D.SteerForce(_wanderTarget, Agent));
}