xsdmx-CocosCreator/assets/Script/game/fight/object/skill/SkillRotate.ts

import CMath from "../../../../util/CMath";
import BObject from "../../bullet/BObject";
import FSprite,{SpriteActionType} from "../FSprite";
import SkillBase from "./SkillBase";

/**
 * 旋转发射子弹
 */
const {ccclass, property} = cc._decorator;

@ccclass
export default class SkillRotate extends SkillBase {

    @property({
        displayName: '每次发射子弹数量'
    })
    public count = 10;
    @property({
        displayName: '每颗子弹间隔时间'
    })
    public btime = 0.1;

    @property({
        displayName: '每颗子弹旋转弧度'
    })
    public rotate = 0.2;

    @property({
        type:cc.Prefab,
        displayName: '子弹'
    })
    mBullet:cc.Prefab = null;

    /**
     * 释放技能
     */
    public exe(target:FSprite,callback:()=>void){
        this.time = new Date().getTime();
        // this.sprite.setDir({x:0,y:0});
        
        //-----播放开始动画
        let bNode = cc.instantiate(this.mBullet)
        let bobject = bNode.getComponent(BObject)
        let sf = bobject.mStartEffect

        let x = this.sprite.mAtkSite.worldX * this.sprite.spine.node.scaleX
        let y = this.sprite.mAtkSite.worldY

        let pos = cc.v2(x, y);
        let sfNode = cc.instantiate(sf)
        sfNode.angle = this.sprite.wAngle
        sfNode.setPosition(pos);
        sfNode.parent = this.sprite.node
        let startSpine: sp.Skeleton = sfNode.getComponent(sp.Skeleton)
        startSpine.setCompleteListener(() => {
            startSpine.setCompleteListener(null);
            sfNode.destroy()
            callback()
        });
        if(startSpine.findAnimation('skill')){
            startSpine.setAnimation(0, 'skill', false);
        }else{
            startSpine.setAnimation(0, 'atk', false);
        }
        //----开始动画播放结束


        this.sprite.playAction(SpriteActionType.atk,false,()=>{
            this.AI.walk(this.range);
        });
        let tp = target.node.getPosition();
        for (let i = 0; i < this.count; i++) {
            this.fire(i,tp);
        }
    }

    private fire(index,tp:cc.Vec2){
        cc.tween(this).sequence(
            cc.delayTime(index*this.btime),
            cc.callFunc(()=>{
                this.fireBullet(index,tp);
            })
        ).start();
       
    }

    private fireBullet(index,p2){
        let node = cc.instantiate(this.mBullet);
        node.group = 'bullet';

        let x = this.node.x+this.sprite.mAtkSite.worldX*this.sprite.spine.node.scaleX
        let y = this.node.y+this.sprite.mAtkSite.worldY

        let pos = cc.v2(x,y);
        node.setPosition(pos);

        let bObject = node.getComponent(BObject);
        bObject.setSprite(this.sprite);
        bObject.speed = this.speed;
        node.parent = this.sprite.map.mSprites;
        let p1 = node.getPosition();

        let angle = CMath.getAngle(p1,p2);

        let cur = index - this.count/2;

        angle += cur*this.rotate;

        bObject.fireAngle(angle);

    }


}