c# - Unity2D - 伴侣

Question

阅读本文时，请记住我是编程和 Unity 的新手，因此我可能会遗漏一些 Unity 提供的术语或工具。请以 ELI5 方式详细说明您的答案。提前致谢!

我目前正在为一个小型个人项目研究一些游戏物理。目前我已经创建了一个平台、一个角色以及应该是什么，一个追随者。

但是，由于我还没有达到可以自己编写完美代码的水平，所以我找到了一个“敌人”脚本并尝试对其进行了一些修改。它可以在一定程度上发挥作用，但需要进行一些调整，我希望我能帮助你们了解这一点。

这是现在的样子(橙色方 block 是同伴)

它跟随玩家，我可以调整速度以适合作为同伴而不是玩家。然而，如图所示，同伴跑向玩家的中心。我想要创建的是一个跟随玩家的同伴，但仍然与玩家保持很小的距离。

我的第一个想法是创建某种永久偏移，但我想不出如何在不弄乱跟随功能的情况下做到这一点。

我希望你能帮助我，我将不胜感激!

这是引用代码。

附加到播放器的代码:

using UnityEngine;
using System.Collections;

public class PlayerCompanion : MonoBehaviour
{

    //In the editor, add your wayPoint gameobject to the script.
    public GameObject wayPoint;

    //This is how often your waypoint's position will update to the player's position
    private float timer = 0.5f;

    void Update ()
    {
        if (timer > 0) {
            timer -= Time.deltaTime;
        }
        if (timer <= 0) {
            //The position of the waypoint will update to the player's position
            UpdatePosition ();
            timer = 0.5f;
        }
    }

    void UpdatePosition ()
    {
        //The wayPoint's position will now be the player's current position.
        wayPoint.transform.position = transform.position;
    }
}

附加到随播广告的代码:

using UnityEngine;
using System.Collections;

public class FollowerOffset : MonoBehaviour {

    //You may consider adding a rigid body to the zombie for accurate physics simulation
    private GameObject wayPoint;

    private Vector3 wayPointPos;

    //This will be the zombie's speed. Adjust as necessary.
    private float speed = 10.0f;

    void Start ()
    {
        //At the start of the game, the zombies will find the gameobject called wayPoint.
        wayPoint = GameObject.Find("wayPoint");
    }

    void Update ()
    {
        wayPointPos = new Vector3(wayPoint.transform.position.x, transform.position.y, wayPoint.transform.position.z);
        //Here, the zombie's will follow the waypoint.
        transform.position = Vector3.MoveTowards(transform.position, wayPointPos, speed * Time.deltaTime);
    }

}

碰撞，我猜？ :)

Answer 1

您可以使用流畅的跟随脚本。我已经为您创建了一个示例类。此类具有以一定延迟和偏移跟随任何给定游戏对象的功能。您必须根据需要调整一些值。

using UnityEngine;
using System.Collections;

public class PlayerCompanion : MonoBehaviour
{
    [SerializeField]
    private GameObject wayPoint;
    [SerializeField]
    public Vector3 offset;
    public Vector3 targetPos;//Edit: I forgot to declare this on firt time
    public float interpVelocity;
    public float cameraLerpTime = .1f;
    public float followStrength = 15f;

    // Use this for initialization
    void Start ()
    {
        //At the start of the game, the zombies will find the gameobject called wayPoint.
        wayPoint = GameObject.Find("wayPoint");
        offset = new Vector3 (5,0,0);//input amount of offset you need
    }

    void FixedUpdate () {
        if (wayPoint) {
            Vector3 posNoZ = transform.position;

            Vector3 targetDirection = (wayPoint.transform.position - posNoZ);
            interpVelocity = targetDirection.magnitude * followStrength;
            targetPos = transform.position + (targetDirection.normalized * interpVelocity * Time.deltaTime); 

            transform.position = Vector3.Lerp (transform.position, targetPos + offset, cameraLerpTime);
        }

    }
}

将这个类附加到你的玩家伙伴，玩不同的值。