80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
#ifndef EVENT_HPP
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#define EVENT_HPP
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#include "open_engine/core.hpp"
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#include <string>
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namespace OpenEngine {
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enum class EventType
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{
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none = 0,
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WindowClose, WindowResized, WindowFocus, WindowLostFocus, WindowMoved,
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AppUpdate,
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KeyPressed, KeyReleased, KeyTyped,
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MouseButtonPressed, MouseButtonReleased, MouseMoved, MouseScrolled
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};
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enum EventCategory
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{
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None = 0,
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EventCategoryApplication = BIT(0),
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EventCategoryInput = BIT(1),
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EventCategoryKeyboard = BIT(2),
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EventCategoryMouse = BIT(3),
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EventCategoryMouseButton = BIT(4)
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};
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#define EVENT_CLASS_TYPE(type) static EventType GetStaticType() { return EventType::type; }\
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virtual EventType GetEventType() const override { return GetStaticType(); }\
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virtual const char* GetName() const override { return #type; }
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#define EVENT_CLASS_CATEGORY(category) virtual int GetCategoryFlags() const override { return category; }
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class Event
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{
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public:
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virtual ~Event() = default;
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virtual EventType GetEventType() const = 0;
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virtual const char* GetName() const = 0;
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virtual int GetCategoryFlags() const = 0;
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virtual std::string ToString() const { return GetName(); };
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inline bool IsInCategory(EventCategory category) {
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return GetCategoryFlags() & category;
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};
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bool handled = false;
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};
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class EventDispatcher
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{
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public:
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EventDispatcher(Event& event)
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: event(event)
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{
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};
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template<typename T, typename F>
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bool Dispatch(const F& func)
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{
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if (event.GetEventType() == T::GetStaticType())
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{
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event.handled = func(static_cast<T&>(event));
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return true;
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}
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return false;
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};
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private:
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Event& event;
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};
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inline std::ostream& operator<<(std::ostream& os, const Event& e)
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{
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return os << e.ToString();
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};
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}
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#endif // EVENT_HPP
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