Function before

packages/core/src/ECS/Systems/EntitySystem.ts:347–351

* 声明此系统在指定系统之前执行 * Declare this system executes before specified systems * * @param systems 系统名称列表 | System names * @returns this (用于链式调用 | for chaining) * * @example * ```typescript * class MySystem extends EntitySystem { * constructor() { *

(...systems: string[])

     * ```
     */
    public before(...systems: string[]): this {
        this._schedulingMetadata.before.push(...systems);
        this._scene?.markSystemsOrderDirty();
        return this;
    }

    /**
     * 声明此系统在指定系统之后执行