unity文字逐个出现实现文字打印机效果-Text

我不是女神ヾ 2023-09-27 09:48 58阅读 0赞

movie\_003

代码：

using System;
    using UnityEngine;
    using System.Collections;
    using UnityEngine.UI;
    
    public class TypewriterEffect : MonoBehaviour {
    
        public float charsPerSecond = 0.2f;//打字时间间隔
        private string words;//保存需要显示的文字
    
        private bool isActive = false;
        private float timer;//计时器
        private Text myText;
        private int currentPos=0;//当前打字位置
    
        // Use this for initialization
        void Start () {
            timer = 0;
            isActive = true;
            charsPerSecond = Mathf.Max (0.2f,charsPerSecond);
            myText = GetComponent<Text> ();
            words = myText.text;
            myText.text = "";//获取Text的文本信息，保存到words中，然后动态更新文本显示内容，实现打字机的效果
        }
        public void OnButton()
        {
            isActive = gameObject.GetComponentInChildren<Toggle>().isOn;
        }
    
        // Update is called once per frame
        void Update () {
            OnStartWriter ();
            //Debug.Log (isActive);
        }
    
        public void StartEffect(){
            isActive = true;
        }
        /// <summary>
        /// 执行打字任务
        /// </summary>
        void OnStartWriter(){
    
            if(isActive){
                timer += Time.deltaTime;
                if(timer>=charsPerSecond){//判断计时器时间是否到达
                    timer = 0;
                    currentPos++;
                    myText.text = words.Substring (0,currentPos);//刷新文本显示内容
    
                    if(currentPos>=words.Length) {
                        OnFinish();
                    }
                }
    
            }
        }
        /// <summary>
        /// 结束打字，初始化数据
        /// </summary>
        void OnFinish(){
            isActive = false;
            timer = 0;
            currentPos = 0;
            myText.text = words;
        }
    }