import { _decorator, Component, Input, input, instantiate, Node, Prefab } from 'cc';
const { ccclass, property } = _decorator;

@ccclass('Test')
export class Test extends Component {
    @property(Prefab)
    private someThing: Prefab;

    someNode: Node;

    protected start(): void {
        input.on(Input.EventType.MOUSE_DOWN, this.ActiveNode, this);
        input.on(Input.EventType.MOUSE_UP, this.DeActiveNode, this);
    }
    private ActiveNode(): void {
        if (this.someNode == null) {
            this.someNode = instantiate(this.someThing);

            this.someNode.parent = this.node;
            this.someNode.setPosition(0, 0, 0);
        } else this.someNode.active = true;
    }

    private DeActiveNode(): void {
        this.someNode.active = false;
    }
}