Unity 物体从一个点移动到另一个点

redhat9i · 发表于 2022-12-23 20:18

22.gif

方式一

Transform.Translate（moveDir * Time.deltaTime * speed ,Space relativeTo）transform.position +=  moveDir * Time.deltaTime * speed
需要注意的是：moveDir表示移动方向，可以是Vector3.forward，也可以是endPosition-startPosition；
using UnityEngine;using UnityEngine.UI;public class MoveTest : MonoBehaviour{ Vector3 endPosition = new Vector3(3, 3, 3); Vector3 startPosition ; bool isStart = false; float speed = 1; Vector3 moveDir; float distance; public Button btn; void Start() {       startPosition = transform.position;       endPosition.y = transform.position.y;       moveDir = endPosition - startPosition;       distance = Vector3.Distance(startPosition, endPosition);       btn.onClick.AddListener(StartRun); } public void StartRun() {       transform.position = startPosition;       isStart = true; } void Update() {       if (isStart) {          //下面3行代码一样的效果          transform.Translate(moveDir * Time.deltaTime * speed, Space.World);          //transform.position += moveDir * Time.deltaTime * speed;                      float dis = Vector3.Distance(startPosition, transform.position);          if (dis >= distance) {             isStart = false;          }       } }}方式二

Vector3 vec = Vector3.Lerp(startPosition, endPosition, progress);transform.position = vec;
需要注意的是，progress是一个[0-1]之间的值，如果progress=0.1，那么vec的值就在两点的1/10位置处；如果progress=0.2，那么vec的值就在两点的2/10位置处；
using UnityEngine;using UnityEngine.UI;public class Move_Lerp : MonoBehaviour{ Vector3 endPosition = new Vector3(2, 2, 2); Vector3 startPosition; bool isStart = false; float speed = 1; float totalTime; float currentTime; public Button btn; void Start() {       startPosition = transform.position;       endPosition.y = transform.position.y;       totalTime = Vector3.Distance(startPosition, endPosition) / speed;       btn.onClick.AddListener(StartRun); } void StartRun() {       transform.position = startPosition;       isStart = true;       currentTime = 0; } void Update() {       if (isStart)       {          currentTime += Time.deltaTime;          Vector3 vec = Vector3.Lerp(startPosition, endPosition, currentTime / totalTime);          transform.position = vec;       } }}方式三

transform.position = Vector3.MoveTowards(currentPosition, targetPosition, Time.deltaTime * speed);
需要注意的是currentPosition表示的是自己的实时位置
using UnityEngine;using UnityEngine.UI;public class MoveToTowards : MonoBehaviour{ Vector3 endPosition = new Vector3(3, 3, 3); Vector3 startPosition; bool isStart = false; float speed = 1; public Button btn; void Start() {       startPosition = transform.position;       endPosition.y = transform.position.y;       btn.onClick.AddListener(StartRun); } public void StartRun() {       transform.position = startPosition;       isStart = true; } void Update() {       if (isStart)       {          transform.position = Vector3.MoveTowards(transform.position, endPosition, Time.deltaTime * speed);       } }}

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Unity 物体从一个点移动到另一个点

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