the-cannon-2_part3_meteor.ts

const {ccclass, property} = cc._decorator;

import Game from './Game'

@ccclass
export default class Meteor extends cc.Component {

    game: Game

    timeToLive = 10000
    timeAlive = 0

    onLoad() {
        this.game = cc.find("/Game").getComponent("Game")
    }

    update(dt) {
        if (!cc.isValid(this.node)) return

        this.timeAlive += dt * 1000
        if (this.timeAlive >= this.timeToLive) {
            this.node.destroy()
        }
    }

    // Collider callbacks
    onBeginContact(contact, selfCollider, otherCollider) {
        if (otherCollider.node.name === "bullet") {
            selfCollider.node.destroy()
            otherCollider.node.destroy()

            this.game.createExplosion(selfCollider.node.position)
        }
    }

}