Method executeCommand

packages/core/src/ECS/Core/CommandBuffer.ts:518–554

* 执行单个命令（旧模式） * Execute single command (legacy mode)

(cmd: DeferredCommand)

     * Execute single command (legacy mode)
     */
    private executeCommand(cmd: DeferredCommand): void {
        // 检查实体是否仍然有效
        if (!cmd.entity.scene) {
            if (this._debug) {
                logger.debug(`CommandBuffer: 跳过命令，实体 ${cmd.entity.name} 已无效`);
            }
            return;
        }

        try {
            switch (cmd.type) {
                case CommandType.ADD_COMPONENT:
                    if (cmd.component) {
                        cmd.entity.addComponent(cmd.component);
                    }
                    break;

                case CommandType.REMOVE_COMPONENT:
                    if (cmd.componentType) {
                        cmd.entity.removeComponentByType(cmd.componentType);
                    }
                    break;

                case CommandType.DESTROY_ENTITY:
                    cmd.entity.destroy();
                    break;

                case CommandType.SET_ENTITY_ACTIVE:
                    if (cmd.value !== undefined) {
                        cmd.entity.active = cmd.value;
                    }
                    break;
            }
        } catch (error) {
            logger.error(`CommandBuffer: 执行命令失败`, { command: cmd, error });
        }
    }

    /**
     * 清空所有待处理的命令（不执行）