TDGameClient3D/assets/scripts/games/ui/fightings/weapons/WeaponBase.ts

import { _decorator, Component, Node, CCInteger, AnimationComponent, find, instantiate, Vec3, director } from 'cc';
import { GameModel } from '../../../models/GameModel';
import { EventDispatcher } from '../../../../engines/events/EventDispatcher';
const { ccclass, property } = _decorator;


export class WeaponBase extends EventDispatcher{

    /**
     * 子弹数量更改
     */
    public static EVENT_BULLET_CHANGE:string="EVENT_BULLET_CHANGE";

    protected leftHand:AnimationComponent;
    protected rightHand:AnimationComponent;
    protected leftSocket:Node;
    protected rightSocket:Node;

    protected leftWeapon:AnimationComponent;
    protected rightWeapon:AnimationComponent;

    protected fireKey:number=0;
    protected lastFireTime:number=0;
    protected isLeftFire:boolean;

    /**
     * 开火中
     */
    protected isFire:boolean=false;
    protected isReload:boolean=false;

    constructor(leftHand:AnimationComponent,rightHand:AnimationComponent){
        super();

        this.leftHand=leftHand;
        this.rightHand=rightHand;

        this.leftSocket=find("RootNode/Arm/upper_arm_R/lower_arm_R/transform1/hand_R/transform2/Guns",this.leftHand.node);
        this.rightSocket=find("RootNode/Arm/upper_arm_R/lower_arm_R/transform1/hand_R/transform2/Guns",this.rightHand.node);

        this.leftWeapon=instantiate(GameModel.single.currentWeaponPrefab).getComponent(AnimationComponent);
        this.leftSocket.addChild(this.leftWeapon.node);
        this.rightWeapon=instantiate(GameModel.single.currentWeaponPrefab).getComponent(AnimationComponent);
        this.rightSocket.addChild(this.rightWeapon.node);
        this.Idle(true);
    }

    StartFire(fireKey:number):void{
        this.fireKey=fireKey;
        this.isFire=true;
        this.MoveFirePosition();
    }

    StopFire():void{
        this.isFire=false;
        this.Idle();
    }

    Update(dt:number):void{
        if(this.isFire==false||this.isReload){
            return;
        }
        let currentTime=director.getCurrentTime();
        if(currentTime-this.lastFireTime>GameModel.single.currentWeaponConfig.firingRate*1000){
            this.Fire();
            this.bulletCount--;
            this.lastFireTime=currentTime;
        }
        //换弹
        if(this.bulletCount<=0){
            this.Reload();
        }
    }

    /**
     * 换弹
     */
    Reload():void{
        this.isReload=true;
        this.leftHand.crossFade("Reload");
        this.rightHand.crossFade("Reload");
        this.leftHand.on(AnimationComponent.EventType.FINISHED,this.ReloadComplete,this,true);
    }

    /**
     * 换弹完成
     */
    ReloadComplete():void{
        this.bulletCount=this.maxBulletCount;
        this.isReload=false;
    }

     /**
     * 将手移动到指定位置
     */
    MoveFirePosition():void{
        if(this.fireKey==0){
            return;
        }
        let Pos:Vec3;
        if(this.fireKey==1){
            Pos=this.leftHand.node.position;
            Pos.x=-0.3;
            this.leftHand.node.setPosition(Pos);
            
        }else if(this.fireKey==3){
            Pos=this.rightHand.node.position;
            Pos.x=0.3;
            this.rightHand.node.setPosition(Pos);
        }else if(this.fireKey==2){
            Pos=this.leftHand.node.position;
            Pos.x=-0.06;
            this.leftHand.node.setPosition(Pos);
            Pos=this.rightHand.node.position;
            Pos.x=0.06;
            this.rightHand.node.setPosition(Pos);
        }
    }
    
    /**
     * 开火
     */
    private Fire():void{
        if(this.fireKey==1){
            this.leftHand.crossFade("Fire");
            this.isLeftFire=true;
        }else if(this.fireKey==3){
            this.rightHand.crossFade("Fire");
            this.isLeftFire=false;
        }else{
            this.isLeftFire=!this.isLeftFire;
            if(this.isLeftFire){
                this.leftHand.crossFade("Fire");
            }else{
                this.rightHand.crossFade("Fire");
            }
        }
    }

    /**
     * 空闲
     */
    private Idle(isAll?:boolean):void{
        if(isAll){
            this.leftHand.crossFade("Idle",1.5);
            this.rightHand.crossFade("Idle",1.5);
        }else{
            if(this.isLeftFire){
                this.leftHand.crossFade("Idle",1.5);
            }else{
                this.rightHand.crossFade("Idle",1.5);
            }
        }
    }

    /**
     * 剩余子弹数量
     */
    get bulletCount():number{
        return this._bulletCount;
    }
    private _bulletCount:number=0;
    set bulletCount(value:number){
        this._bulletCount=value;
        this.DispatchEvent(WeaponBase.EVENT_BULLET_CHANGE);
    }

    /**
     * 弹夹数量
     */
    get maxBulletCount():number{
        return GameModel.single.currentWeaponConfig.clip;
    }
}