c# - Unity 中的领导者跟随植绒/转向

Question

我在 C# 中为我的 unity 项目创建了一个植绒算法。我试着关注 this example ，但问题是把所有东西放在一起，我无法推断。以下代码是我希望拥有一个领导者跟随植绒系统的一部分。

我在基本的三个转向子程序(对齐、凝聚、分离)中添加了跟随/寻求转向，但现在这些机器人只是聚集在领导者的顶部并跟随他。我希望他们跟随领导者，但也保持彼此分离，而不是像他们不合时宜地互相堆积。

当用户选择一组 boid，然后选择它们应该聚集到的位置时，最接近的 boid 被分配为领导者，并被分配到目标的 A* 路径。其他 boid 然后调用 flocking 而不是路径代码。

void Update()
{
    if (flock.Count > 0 && 
        flockLeader != gameObject)
    {
        Flocking();
    }
    else
    {
        Movement();
    }
}

private void Flocking()
{
    Vector3 vector = Vector3.zero, alignment = Alignment(), cohesion = Cohesion(), separation = Separation(), following = Following();
    int weightAlignment = 1, weightCohesion = 1, weightSeparation = 1, weightFollowing = 1;

    NeighbourhoodWatch(); // determine neighbour boids (exclude self)

    vector += (separation * weightSeparation);
    vector += (alignment * weightAlignment);
    vector += (cohesion * weightCohesion);
    vector += (following * weightFollowing);
    vector.Normalize();

    if (!vector.Equals(Vector3.zero))
    {
        if (Vector3.Angle(vector, transform.forward) >= 1f)
        {
            transform.rotation = Quaternion.LookRotation(Vector3.RotateTowards(transform.forward, vector, rateOfTurn * Time.deltaTime, 0.0f));
        }
        else // rotate and move
        {
            transform.rotation = Quaternion.LookRotation(Vector3.RotateTowards(transform.forward, vector, rateOfTurn * Time.deltaTime, 0.0f));
            transform.Translate(Vector3.forward * (speed * Time.deltaTime));
        }
    }
}

private Vector3 Alignment()
{
    Vector3 vector = Vector3.zero;

    if (neighbourhood.Count > 0)
    {
        foreach (GameObject boid in neighbourhood)
        {
            vector += boid.transform.forward;
        }

        vector /= neighbourhood.Count;
    }

    return vector;
}

private Vector3 Cohesion()
{
    Vector3 vector = Vector3.zero;

    if (neighbourhood.Count > 0)
    {
        foreach (GameObject boid in neighbourhood)
        {
            vector += boid.transform.position; // acquire centre of mass
        }

        vector /= neighbourhood.Count;
        vector = vector - transform.position; // direction to centre of mass
    }

    return vector;
}

private Vector3 Separation()
{
    Vector3 vector = Vector3.zero;

    if (neighbourhood.Count > 0)
    {
        int spaceInvaders = 0;

        foreach (GameObject boid in neighbourhood)
        {
            float proximity = Vector3.Distance(boid.transform.position, transform.position);

            if (proximity <= footprint)
            {
                vector += boid.transform.position - transform.position;
                spaceInvaders++;
            }
        }

        if (spaceInvaders > 0)
        {
            vector /= spaceInvaders;
            vector *= -1; // negation (invert direction)
        }
    }

    return vector;
}

private Vector3 Following()
{
    Vector3 vector = Vector3.zero;

    vector = flockLeader.transform.position - transform.position;

    return vector;
}

Answer 1

好吧，我有几次尝试类似的东西，如果你想让你的单位与你的领导者有一段距离，只需采用领导者速度并使用那个反向矢量，那个反向矢量将是你的单位目的地，也使用矢量.scale 如果你想自己调整间隔距离。