EventTypes.h

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#pragma once
 
#include <stdint.h>
#include "ship/Api.h"
 
typedef int32_t EventID;
typedef int64_t ListenerID;
 
typedef enum {
    EVENT_PRIORITY_LOW,    
    EVENT_PRIORITY_NORMAL, 
    EVENT_PRIORITY_HIGH,   
} EventPriority;
 
typedef struct {
    bool Cancelled;
} IEvent;
 
typedef void (*EventCallback)(IEvent*);
 
typedef struct EventMetadata {
    const char* Path; 
    int Line;         
    uint64_t Count;   
} EventMetadata;
 
typedef struct EventListener {
    ListenerID ID;          
    EventPriority Priority; 
    EventCallback Function; 
    EventMetadata Metadata; 
} EventListener;
 
#ifdef INIT_EVENT_IDS
#ifdef __cplusplus
#define DECLARE_EVENT(eventName) extern "C" EventID eventName##ID = -1;
#else
#define DECLARE_EVENT(eventName) EventID eventName##ID = -1;
#endif
#else
#define DECLARE_EVENT(eventName) API_EXPORT EventID eventName##ID;
#endif
 
#define STRINGIFY_DETAIL(x) #x
#define TOSTRING(x) STRINGIFY_DETAIL(x)
 
#define FILE_AND_LINE __FILE__ ":" TOSTRING(__LINE__)
 
#define DEFINE_EVENT(eventName, ...) \
    typedef struct {                 \
        IEvent Event;                \
        __VA_ARGS__                  \
    } eventName;                     \
                                     \
    DECLARE_EVENT(eventName)
 
#define CALL_EVENT(eventType, ...)                       \
    eventType eventType##_ = { { false }, __VA_ARGS__ }; \
    EventSystemCallEvent(eventType##ID, &eventType##_, __FILE__, __LINE__, FILE_AND_LINE);
 
#define CALL_CANCELLABLE_EVENT(eventType, ...)                                             \
    eventType eventType##_ = { { false }, __VA_ARGS__ };                                   \
    EventSystemCallEvent(eventType##ID, &eventType##_, __FILE__, __LINE__, FILE_AND_LINE); \
    if (!eventType##_.Event.Cancelled)
 
#define CHECK_IF_NOT_CANCELLED(eventType) if (!eventType##_.Event.Cancelled)
 
#define CALL_CANCELLABLE_RETURN_EVENT(eventType, ...)                                      \
    eventType eventType##_ = { { false }, __VA_ARGS__ };                                   \
    EventSystemCallEvent(eventType##ID, &eventType##_, __FILE__, __LINE__, FILE_AND_LINE); \
    if (eventType##_.Event.Cancelled) {                                                    \
        return;                                                                            \
    }
 
#define REGISTER_EVENT(eventType) eventType##ID = EventSystemRegisterEvent(#eventType);
 
#define REGISTER_LISTENER(eventType, priority, callback) \
    EventSystemRegisterListener(eventType##ID, callback, priority, __FILE__, __LINE__);
 
#define UNREGISTER_LISTENER(eventType, listenerID) EventSystemUnregisterListener(eventType##ID, listenerID);
 
 
typedef enum {
    TICK_EVENT_UPDATE = 0,
    TICK_EVENT_LATE_UPDATE = 1,
    TICK_EVENT_DRAW = 2,
} TickEvent;