Unity Text超框 文字滚动循环显示

//container Text

using System.Collections;
using System.Collections.Generic;
using Unity.VisualScripting;
using UnityEngine;
using UnityEngine.UI;public class AutoScrollText : MonoBehaviour
{private Text[] _texts = new Text[2];private RectTransform _container;private RectTransform _mask;[SerializeField] private string _txt; //显示文本[SerializeField] private float _speed = 30f; //滚动速度[SerializeField] private float _space; //间距[SerializeField] private float _overall; //字体长度[SerializeField] private float _overall2; //总长度[SerializeField] private float _leftBound = 0;// 左边界[SerializeField] private bool _scroll = false; //是否滚动private float _startTime;//开始滚动时间private void Awake(){_mask = this.GetComponent<RectTransform>();_container = transform.GetChild(0).GetComponent<RectTransform>();_texts[0] = _container.GetChild(0).GetComponent<Text>();_texts[1] = _container.GetChild(1).GetComponent<Text>();_container.pivot = new Vector2(0, 0.5f);_texts[0].rectTransform.pivot = new Vector2(0, 0.5f);_texts[1].rectTransform.pivot = new Vector2(0, 0.5f);var size = _texts[0].gameObject.GetOrAddComponent<ContentSizeFitter>();size.horizontalFit = ContentSizeFitter.FitMode.PreferredSize;size = _texts[1].gameObject.GetOrAddComponent<ContentSizeFitter>();size.horizontalFit = ContentSizeFitter.FitMode.PreferredSize;}private void Start(){//SetText(_txt,false);}private void FixedUpdate(){if (_scroll && Time.time > _startTime){if (_container.localPosition.x < -10000000){ResetContainer();}// 容器 移动_container.localPosition += Vector3.left * Time.fixedDeltaTime * _speed;//文本 位置 更新for (int i = 0; i < _texts.Length; ++i){if (_texts[i].rectTransform.localPosition.x + _container.localPosition.x < _leftBound){SetToNextViewPos(i);}}}}public void StopScroll()//停止 滚动{ResetContainer(true);}public void StartScroll() //开始 滚动{ResetContainer();}public void SetText(string _txt, bool IsStopScroll = true){this._txt = _txt;_texts[0].text = _txt;_texts[1].text = _txt;ResetContainer(IsStopScroll);}private void ResetContainer(bool IsStopScroll = false)//重置{_startTime = Time.time + 0.5f;_container.localPosition = new Vector2(_mask.rect.xMin + 5f, _container.localPosition.y);_texts[0].rectTransform.localPosition = new Vector2(0, _texts[0].rectTransform.localPosition.y);LayoutRebuilder.ForceRebuildLayoutImmediate(_texts[0].rectTransform);if (!IsStopScroll && _texts[0].rectTransform.rect.width > _mask.rect.width){var relative = new Vector2(-_texts[0].rectTransform.rect.width + _mask.rect.min.x, _mask.rect.min.y);_leftBound = relative.x;_overall = _space + _texts[0].rectTransform.rect.width;_overall2 = _overall * 2;_texts[1].rectTransform.localPosition = _texts[0].rectTransform.localPosition + Vector3.right * _overall;_scroll = true;_texts[1].gameObject.SetActive(true);}else{_texts[1].gameObject.SetActive(false);_scroll = false;}}private void SetToNextViewPos(int index)//文本位置 交替{var count = Mathf.FloorToInt(-_container.localPosition.x / _overall2);var len = (-_container.localPosition.x) % _overall2;var x = len > _overall ? _overall2 * (count + 1) : _overall2 * count;x += index * _overall;_texts[index].rectTransform.localPosition = new Vector2(x, _texts[index].rectTransform.localPosition.y);}
}