sanguozhanji/assets/scripts/ui/GuideLabel.ts

// Learn TypeScript:
//  - https://docs.cocos.com/creator/manual/en/scripting/typescript.html
// Learn Attribute:
//  - https://docs.cocos.com/creator/manual/en/scripting/reference/attributes.html
// Learn life-cycle callbacks:
//  - https://docs.cocos.com/creator/manual/en/scripting/life-cycle-callbacks.html

const {ccclass, property} = cc._decorator;

@ccclass
export default class GuideLabel extends cc.Component {

    // LIFE-CYCLE CALLBACKS:

    // onLoad () {}
    private labelStr = ""
    private isShow = false

    start () {
        // if(this.isShow){
        //     return
        // }
        this.setView()
    }
    
    setView(){
        this.node.color = cc.color(233,136,78)
        let label = this.node.getComponent(cc.Label)
        if(!cc.isValid(label)){
            return
        }
        // if(this.isShow){
        //     return
        // }
        this.isShow = true
        label.enableBold = true
        // this.labelStr = label.string
        // this.showTalk(0,this.labelStr)
    }

    onEnable(){
       
    }

    showTalk(index: number, str: string) {
        index++
        if (index > str.length) {
            return
        }
        if(!cc.isValid(this.node)){
            return
        }
        let showStr = str.substr(0, index)
        this.node.getComponent(cc.Label).string = showStr
        this.scheduleOnce(() => {
            this.showTalk(index, str)
        }, 0.06)
    }



    // update (dt) {}
}