如何平滑玩家方向的改变？

Question

我想平滑玩家方向的改变。我有一个简单的动作脚本，但是当我继续前进并开始倒退时，我希望我的角色开始 "sliding"。 gif 文件中有一个示例 - https://imgur.com/uSL1Gd1。我尝试这样做但太疯狂了(

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Moving : MonoBehaviour
{
    [SerializeField]
    Transform frogTransform;
    Vector3 now = new Vector3();
    Vector3 Now
    {
        get
        {
            if (now == null)
            {
                return Vector3.zero;
            }
            else
            {
                return now;
            }
        }
    }

    void FixedUpdate()
    {
        if (Input.GetKey(KeyCode.W))
        {
            now = Vector3.Lerp(now, Vector3.forward, 0.5f); //this doesn't help me (nothing changes)
            frogTransform.Translate(now * 0.1f);
            now = Vector3.forward;
        }
        else if (Input.GetKey(KeyCode.S))
        {
            now = Vector3.Lerp(now, Vector3.back, 0.5f);
            frogTransform.Translate(now * 0.1f);
            now = Vector3.back;
        }
        if (Input.GetKey(KeyCode.D))
        {
            now = Vector3.Lerp(now, Vector3.right, 0.5f);
            frogTransform.Translate(now * 0.1f);
            now = Vector3.right;
        }
        else if (Input.GetKey(KeyCode.A))
        {
            now = Vector3.Lerp(now, Vector3.left, 0.5f);
            frogTransform.Translate(now * 0.1f);
            now = Vector3.left;
        }
    }
}

Answer 1

根据您的回答，我看到您正在使用 Transform.Translate，而这不是应用 Unity Physics（并创建滑动效果）的工具。

要应用滑动效果，您可以将 Rigidbody 添加到您的游戏对象。

然后你可以使用Rigidbody.AddForce来引导你的移动。

只要你改变direction/force你就会看到滑动效果。考虑到您可以调整刚体的质量和阻力以获得不同类型的滑动效果。

您的代码将变成。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Moving : MonoBehaviour
{
    [SerializeField] Rigidbody rigidbody;

    [SerializeField] float accelerationForce = 5f;

    void FixedUpdate()
    {
        if (Input.GetKey(KeyCode.W))
            rigidbody.AddForce(Vector3.forward * accelerationForce, ForceMode.Impulse);

        if (Input.GetKey(KeyCode.S))
            rigidbody.AddForce(Vector3.back * accelerationForce, ForceMode.Impulse);

        if (Input.GetKey(KeyCode.D))
            rigidbody.AddForce(Vector3.right * accelerationForce, ForceMode.Impulse);

        if (Input.GetKey(KeyCode.A))
            rigidbody.AddForce(Vector3.left * accelerationForce, ForceMode.Impulse);
    }
}

您还可以查看 this tutorial and this other tutorial。

如何平滑玩家方向的改变？

How to smooth the change of player's direction?

c#

math

vector

motion

unity3d