/// <summary>
/// Get crowd average velocity
/// </summary>
/// <returns>Crowd average velocity</returns>
private bool GetCrowdAverageVelocity(out Vector3 _AverageVelocity)
{
List <SteeringCrowdUnit> crowd = SteeringCrowdUnit.CrowdUnitList;
List <SteeringCrowdUnit> crowdNeighbors = new List <SteeringCrowdUnit>();
float sqrDist = 0;
_AverageVelocity = Vector3.zero;
// Get all crow units in neighbor hood
for (int i = 0; i < crowd.Count; i++)
{
SteeringCrowdUnit crowdUnit = crowd[i];
if (crowdUnit != null)
{
if (crowdUnit.gameObject != gameObject)
{
sqrDist = (crowdUnit.transform.position - transform.position).sqrMagnitude;
if (sqrDist < m_NeighborHoodRadius * m_NeighborHoodRadius)
{
crowdNeighbors.Add(crowdUnit);
}
}
}
}
if (crowdNeighbors.Count < m_MinNeighborHoodUnitCount)
{
return(false);
}
// Get average velocity of neighbor hood
for (int i = 0; i < crowdNeighbors.Count; i++)
{
if (!m_AdaptSpeedToCrowdSpeed)
{
_AverageVelocity += crowdNeighbors[i].Orientation;
}
else
{
_AverageVelocity += crowdNeighbors[i].Velocity;
}
}
_AverageVelocity /= crowdNeighbors.Count;
if (!m_AdaptSpeedToCrowdSpeed)
{
_AverageVelocity = _AverageVelocity.normalized * SteeringCore.MaxSpeed;
}
return(true);
}
/// <summary>
/// Get separation velocity from crowd
/// </summary>
/// <returns>Separation velocity from crowd</returns>
private bool GetSeparationVelocity(out Vector3 _SeparationForce)
{
List <SteeringCrowdUnit> crowd = SteeringCrowdUnit.CrowdUnitList;
List <SteeringCrowdUnit> crowdNeighbors = new List <SteeringCrowdUnit>();
float sqrDist = 0;
_SeparationForce = Vector3.zero;
// Get all crow units in neighbor hood
for (int i = 0; i < crowd.Count; i++)
{
SteeringCrowdUnit crowdUnit = crowd[i];
if (crowdUnit != null)
{
if (crowdUnit.gameObject != gameObject)
{
sqrDist = (crowdUnit.transform.position - transform.position).sqrMagnitude;
if (sqrDist < m_NeighborHoodRadius * m_NeighborHoodRadius)
{
crowdNeighbors.Add(crowdUnit);
}
}
}
}
if (crowdNeighbors.Count < m_MinNeighborHoodUnitCount)
{
return(false);
}
Vector3 force;
// Calculate separation from neighbor hood
for (int i = 0; i < crowdNeighbors.Count; i++)
{
force = transform.position - crowdNeighbors[i].transform.position;
force *= 1 - Mathf.Min(force.sqrMagnitude / (m_NeighborHoodRadius * m_NeighborHoodRadius), 1);
_SeparationForce += force;
}
_SeparationForce /= crowdNeighbors.Count;
return(true);
}
/// <summary>
/// Get center of mass between all neighbor crowd units in neighborhood for cohesion positioning
/// </summary>
/// <returns>Center of mass between all neighbor crowd units in neighborhood</returns>
private bool GetCohesionPoint(out Vector3 _CohesionPoint, out Vector3 _AverageVelocity)
{
List <SteeringCrowdUnit> crowd = SteeringCrowdUnit.CrowdUnitList;
List <SteeringCrowdUnit> crowdNeighbors = new List <SteeringCrowdUnit>();
float sqrDist = 0;
_CohesionPoint = Vector3.zero;
_AverageVelocity = Vector3.zero;
// Get all crow units in neighbor hood
for (int i = 0; i < crowd.Count; i++)
{
SteeringCrowdUnit crowdUnit = crowd[i];
if (crowdUnit != null)
{
if (crowdUnit.gameObject != gameObject)
{
sqrDist = (crowdUnit.transform.position - transform.position).sqrMagnitude;
if (sqrDist < m_NeighborHoodRadius * m_NeighborHoodRadius)
{
crowdNeighbors.Add(crowdUnit);
}
}
}
}
if (crowdNeighbors.Count < m_MinNeighborHoodUnitCount)
{
return(false);
}
// Get center of mass in neighbor hood
for (int i = 0; i < crowdNeighbors.Count; i++)
{
_CohesionPoint += crowdNeighbors[i].transform.position;
_AverageVelocity += crowdNeighbors[i].Velocity;
}
_CohesionPoint /= crowdNeighbors.Count;
_AverageVelocity /= crowdNeighbors.Count;
return(true);
}