DoomsdayRescue/assets/script/gameLogic/gameObject/bullet/zomBiebullet.ts

/*
 * @Author: your name
 * @Date: 2021-09-20 15:38:03
 * @LastEditTime: 2021-09-20 22:43:24
 * @LastEditors: Please set LastEditors
 * @Description: In User Settings Edit
 * @FilePath: \zombiefood\assets\script\gameLogic\gameObject\bullet\zomBiebullet.ts
 */
import { Log, LOG_TAG } from "../../../framework/log/Log";
import Utils from "../../../framework/utils/utils";
import { GAME_OBJECT_TYPE } from "../../utrl/gameEnum";
import GameObject from "../gameObject";
import PlayerObject from "../player/playerObject";

const { ccclass, property } = cc._decorator;
/**子弹实体类 */
@ccclass
export default class BulletObject extends GameObject {
    @property(cc.Node)
    view: cc.Node = null;
    private inited = false;
    private height = 250;
    private u_speed = 500;
    private dur = 0;
    private a = -1000;
    private v_speed: cc.Vec3 = null;
    damage: number;

    init(pos: cc.Vec3, target_pos: cc.Vec3, damage: number) {
        target_pos.x = target_pos.x + Utils.random(-100, 100);
        this.node.setPosition(pos);
        this.view.y = this.height;
        this.dur = Math.sqrt(Math.pow(this.u_speed / this.a, 2) - this.height / this.a * 2) - this.u_speed / this.a;
        this.v_speed = target_pos.sub(pos).div(this.dur);
        this.type = GAME_OBJECT_TYPE.zombieBullet;
        this.damage = damage;
        this.inited = true;
    }
    update(dt: number) {
        if (!this.inited) {
            return;
        }
        if (this.view.y > 0) {
            this.u_speed += dt * this.a;
            this.view.y += this.u_speed * dt;
            if (this.view.y < 0) {
                this.view.y = 0;
                // Log.log(LOG_TAG.DEBUG, 'booooooooooooooom');
                if (this.node && cc.isValid(this.node))
                    this.node.destroy();
            }
            let pos = this.node.position.add(this.v_speed.mul(dt));
            this.node.setPosition(pos);
        }
    }
}