Unity文字印表機效果的實現程式碼

    指令碼直接掛在文字上就可以了

using UnityEngine; using System.Collections; using UnityEngine.UI;

public class TypewriterEffect : MonoBehaviour {

public float charsPerSecond = 0.2f;//打字時間間隔
private string words;//儲存需要顯示的文字

private bool isActive = false;
private float timer;//計時器
private Text myText;
private int currentPos=0;//當前打字位置

// Use this for initialization
void Start () {
    timer = 0;
    isActive = true;
    charsPerSecond = Mathf.Max (0.2f,charsPerSecond);
    myText = GetComponent<Text> ();
    words = myText.text;
    myText.text = "";//獲取Text的文字資訊，儲存到words中，然後動態更新文字顯示內容，實現打字機的效果
}

// Update is called once per frame
void Update () {
    OnStartWriter ();
    //Debug.Log (isActive);
}

public void StartEffect(){
    isActive = true;
}
/// <summary>
/// 執行打字任務
/// </summary>
void OnStartWriter(){

    if(isActive){
        timer += Time.deltaTime;
        if(timer>=charsPerSecond){//判斷計時器時間是否到達
            timer = 0;
            currentPos++;
            myText.text = words.Substring (0,currentPos);//重新整理文字顯示內容

            if(currentPos>=words.Length) {
                OnFinish();
            }
        }

    }
}
/// <summary>
/// 結束打字，初始化資料
/// </summary>
void OnFinish(){
    isActive = false;
    timer = 0;
    currentPos = 0;
    myText.text = words;
}
 

}