import { _decorator, CCInteger, Collider2D, Component, Contact2DType, EventHandler, tween, Vec2 } from 'cc';
import { Ball } from './Ball';
import Utilities from '../Utilities';
const { ccclass, property } = _decorator;

@ccclass('Cannon')
export class Cannon extends Component {
    @property({ type: Collider2D, visible: true })
    private _collider: Collider2D;
    @property({ type: CCInteger, visible: true })
    private _force = 30;
    @property({ type: EventHandler, visible: true })
    private onDone: EventHandler[] = [];

    protected onLoad(): void {
        this._collider.on(Contact2DType.BEGIN_CONTACT, this.onBeginContact, this);
    }

    private async onBeginContact(seft: Collider2D, other: Collider2D) {
        const ball = other.getComponent(Ball);
        this._collider.enabled = false;
        if (ball) {
            ball.setActiveRigi(false);
            tween(ball.node).to(0.1, { worldPosition: this.node.worldPosition }).start();
            await Utilities.delay(1000);
            ball.setActiveRigi(true);
            ball.throwBall(new Vec2(0, this._force));
            await Utilities.delay(500);
            this._collider.enabled = true;
            EventHandler.emitEvents(this.onDone, ball);
        }
    }
}