Unity如何允许对象仅使用坐标在特定边界内移动

使用 Mathf.PingPong 摇摆 0f 和 5f 基于当前时间。

float speed = 1f;
float curXPosition = Mathf.PingPong(speed * Time.time, 5f);
transform.position = new Vector3(curXPosition,transform.position.y,transform.position.z);

如果需要在特定时间从0开始:

// as class field
public float zeroTime=0f;
public float speed;

// When you want it to start from zero, call this line:
this.zeroTime = Time.time; 

// in Update/FixedUpdate
float curXPosition = Mathf.PingPong(speed * (Time.time-zeroTime), 5f);
transform.position = new Vector3(curXPosition,transform.position.y,transform.position.z);