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92 lines
2.2 KiB
92 lines
2.2 KiB
//*********************
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// create by 流云
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// time: 2021.01.05
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// desc: 打印字符组件
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//*********************
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import { Component, Label, RichText, _decorator, Node } from "cc";
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import { DEV } from "cc/env";
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const { ccclass, property } = _decorator;
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/**
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* 打印字符组件
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*/
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@ccclass
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export default class PrintChar extends Component {
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@property({ tooltip: DEV && '打印速度' })
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private speed: number = 1;
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@property({ tooltip: DEV && '自动播放' })
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private playOnLoad: boolean = false;
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private _lb: Label | RichText ;
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private _text: string = `少得了开关就傻掉了看风景撒了国家是，奥斯卡了刚加上了，打飞机按时，第三方`;
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private _strArr = [];
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private _curent_index = 0;
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onLoad() {
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this._lb = this.node.getComponent(Label);
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if (!this._lb)
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this._lb = this.node.getComponent(RichText);
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if (this._lb)
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this._text = this._lb.string;
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else {
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this._lb = this.node.addComponent(Label);
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}
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this._lb.string = ``;
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}
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onEnable() {
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if (this.playOnLoad && this._text != ``)
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this.startPrint();
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}
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onDisable() {
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this.unscheduleAllCallbacks();
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this._lb.string = "";
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}
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public print(str: string, speed = 1) {
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this.speed = speed;
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this._text = str;
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if (this._lb)
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this.startPrint();
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}
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public clear() {
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this._text = ``;
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this._lb.string = ``;
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}
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private startPrint() {
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this._strArr = [];
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this._curent_index = 0;
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this._lb.string = "";
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this.unscheduleAllCallbacks();
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for (let i = 0; i < this._text.length; i++) {
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this._strArr.push(this._text.substring(0, i + 1));
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}
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this.schedule(() => {
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this.next();
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}, this.speed);
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}
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private next() {
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if (this._curent_index < this._text.length) {
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this.showContent(this._strArr[this._curent_index]);
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}
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else {
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this.unscheduleAllCallbacks();
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}
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this._curent_index++;
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}
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private showContent(str) {
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if (this._lb)
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this._lb.string = str;
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}
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}
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