145 lines
2.9 KiB
C++
145 lines
2.9 KiB
C++
#pragma once
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#include <extra2d/core/types.h>
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#include <string>
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namespace extra2d {
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/**
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* @brief 服务优先级枚举
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* 定义服务的初始化顺序，数值越小越先初始化
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*/
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enum class ServicePriority : i32 {
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Core = 0,
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Event = 100,
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Timer = 200,
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Scene = 300,
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Camera = 400,
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Resource = 500,
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Audio = 600,
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User = 1000
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};
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/**
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* @brief 服务状态枚举
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*/
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enum class ServiceState {
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Uninitialized,
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Initializing,
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Running,
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Paused,
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Stopping,
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Stopped
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};
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/**
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* @brief 服务信息结构体
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*/
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struct ServiceInfo {
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std::string name;
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ServicePriority priority = ServicePriority::User;
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ServiceState state = ServiceState::Uninitialized;
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bool enabled = true;
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};
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/**
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* @brief 服务接口基类
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* 所有服务必须实现此接口，支持依赖注入和生命周期管理
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*/
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class IService {
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friend class ServiceLocator;
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public:
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virtual ~IService() = default;
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/**
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* @brief 获取服务信息
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* @return 服务信息结构体
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*/
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virtual ServiceInfo info() const = 0;
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/**
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* @brief 初始化服务
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* @return 初始化成功返回 true
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*/
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virtual bool init() = 0;
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/**
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* @brief 关闭服务
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*/
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virtual void shutdown() = 0;
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/**
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* @brief 暂停服务
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*/
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virtual void pause() {
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info_.state = ServiceState::Paused;
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}
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/**
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* @brief 恢复服务
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*/
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virtual void resume() {
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if (info_.state == ServiceState::Paused) {
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info_.state = ServiceState::Running;
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}
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}
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/**
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* @brief 更新服务
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* @param dt 帧间隔时间
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*/
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virtual void update(f32 dt) { }
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/**
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* @brief 检查服务是否已初始化
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* @return 已初始化返回 true
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*/
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virtual bool initialized() const {
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return info_.state == ServiceState::Running ||
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info_.state == ServiceState::Paused;
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}
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/**
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* @brief 获取服务状态
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* @return 当前服务状态
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*/
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ServiceState state() const { return info_.state; }
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/**
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* @brief 获取服务名称
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* @return 服务名称
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*/
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const std::string& name() const { return info_.name; }
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protected:
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ServiceInfo info_;
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/**
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* @brief 设置服务状态
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* @param state 新状态
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*/
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void setState(ServiceState state) { info_.state = state; }
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};
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/**
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* @brief 类型ID生成器
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* 用于为每种服务类型生成唯一ID
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*/
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using ServiceTypeId = size_t;
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namespace detail {
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inline ServiceTypeId nextServiceTypeId() {
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static ServiceTypeId id = 0;
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return ++id;
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}
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template<typename T>
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ServiceTypeId getServiceTypeId() {
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static ServiceTypeId id = nextServiceTypeId();
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return id;
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}
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}
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}
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