// Update is called once per frame
void Update()
{
for (int b = 0; b < boids.Length; b++)
{
BoidData boid = boids[b];
if (IsHeadingForCollision(boid.position, boid.boundsRadius, boid.forward, boid.collisionAvoidDst, boid.layerMask))
{
boid.collAvoidDir = boid.forward;
}
boids[b] = boid;
}
}
public void Execute(int index)
{
int numFlockMates = 0;
BoidData boida = boids[index];
for (int i = 0; i < boids.Length; i++)
{
if (index != i)
{
BoidData boidb = boids[i];
float3 offset = boidb.position - boida.position;
float sqrDst = offset.x * offset.x + offset.y * offset.y + offset.z * offset.z;
if (sqrDst < viewRadius * viewRadius)
{
numFlockMates++;
boida.flockHeading += boidb.direction;
boida.flockCenter += boidb.position;
if (sqrDst < avoidRadius * avoidRadius)
{
boida.separationHeading -= offset / sqrDst;
}
}
}
}
float3 acceleration = float3.zero;
if (numFlockMates > 0)
{
boida.flockCenter /= numFlockMates;
float3 offsetToFlockmatesCentre = (boida.flockCenter - boida.position);
var alignmentForce = SteerTowards(boida.flockHeading, boida.velocity) * alignWeight;
var cohesionForce = SteerTowards(offsetToFlockmatesCentre, boida.velocity) * cohesionWeight;
var seperationForce = SteerTowards(boida.separationHeading, boida.velocity) * seperateWeight;
acceleration += alignmentForce;
acceleration += cohesionForce;
acceleration += seperationForce;
}
boida.acceleration = acceleration;
boids[index] = boida;
}