Method hasComponent

packages/core/src/ECS/Entity.ts:547–555

* @zh 检查实体是否拥有指定类型的组件 * @en Check if entity has component of specified type * * @param type - @zh 组件类型构造函数 @en Component type constructor * @returns @zh 如果实体拥有该组件返回true @en Returns true if entity has the component * * @example * ```typescript * if (entity.hasC

(type: ComponentType<T>)

     * ```
     */
    public hasComponent<T extends Component>(type: ComponentType<T>): boolean {
        const registry = this.scene?.componentRegistry ?? GlobalComponentRegistry;
        if (!registry.isRegistered(type)) {
            return false;
        }

        const mask = registry.getBitMask(type);
        return BitMask64Utils.hasAny(this._componentMask, mask);
    }

    /**
     * @zh 获取或创建指定类型的组件