EventBus类 参考

事件总线，缓冲队列模式 更多...

#include <EventBus.h>

Public 类型
using	HandlerID = uint64_t

Public 成员函数
	EventBus (const EventBus &)=delete
EventBus &	operator= (const EventBus &)=delete
	EventBus (EventBus &&)=delete
EventBus &	operator= (EventBus &&)=delete

静态 Public 成员函数
template<typename EventType>
static HandlerID	Subscribe (std::function< void(const EventType &)> callback)
template<typename EventType>
static void	Unsubscribe (HandlerID id)
template<typename EventType>
static void	Emit (const EventType &event)
static void	ProcessEvents ()
template<typename EventType>
static void	Clear ()
static void	ClearAll ()
static EventBus &	GetInstance ()

详细描述

事件总线，缓冲队列模式

所有事件先入队，在游戏循环的统一时刻（ProcessEvents）派发。 避免递归触发、迭代器失效等问题。

使用示例： struct CollisionEvent : public Shit::Event { class GameObject* a; class GameObject* b; };

uint64_t id = Shit::EventBus::Subscribe<CollisionEvent>( [](const CollisionEvent& e) { /* handle *\/ });

Shit::EventBus::Emit(CollisionEvent{nullptr, nullptr}); // 游戏循环结束时： Shit::EventBus::ProcessEvents(); Shit::EventBus::Unsubscribe<CollisionEvent>(id);

成员类型定义说明

HandlerID

using HandlerID = uint64_t

构造及析构函数说明

EventBus() [1/2]

EventBus ( const EventBus & )

delete

EventBus() [2/2]

EventBus ( EventBus && )

delete

成员函数说明

Clear()

template<typename EventType>

void Clear ( )

inlinestatic

ClearAll()

void ClearAll ( )

inlinestatic

Emit()

template<typename EventType>

void Emit ( const EventType & event )

inlinestatic

GetInstance()

EventBus & GetInstance ( )

static

operator=() [1/2]

EventBus & operator= ( const EventBus & )

delete

operator=() [2/2]

EventBus & operator= ( EventBus && )

delete

ProcessEvents()

void ProcessEvents ( )

inlinestatic

Subscribe()

template<typename EventType>

HandlerID Subscribe ( std::function< void(const EventType &)> callback )

inlinestatic

Unsubscribe()

template<typename EventType>

void Unsubscribe ( HandlerID id )

inlinestatic

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该类的文档由以下文件生成:

• ShitEngine/Event/EventBus.h