MapEvents.cpp

#include "Events/MapEvents.hpp"
#include "API/CNWSPlayer.hpp"
#include "API/CNWSMessage.hpp"
#include "API/Functions.hpp"
#include "API/Constants.hpp"
#include "Events.hpp"
#include "Utils.hpp"
#include <cstring>

namespace Events {

using namespace NWNXLib;
using namespace NWNXLib::API;
using namespace NWNXLib::Platform;

static NWNXLib::Hooking::FunctionHook* m_HandlePlayerToServerMapPinSetMapPinAtHook = nullptr;
static NWNXLib::Hooking::FunctionHook* m_HandlePlayerToServerMapPinChangePinHook = nullptr;
static NWNXLib::Hooking::FunctionHook* m_HandlePlayerToServerMapPinDestroyMapPinHook = nullptr;

MapEvents::MapEvents(ViewPtr<Services::HooksProxy> hooker)
{
    hooker->RequestExclusiveHook<Functions::CNWSMessage__HandlePlayerToServerMapPinSetMapPinAt, int32_t,
        CNWSMessage*, CNWSPlayer*>(&HandleMapPinSetMapPinAtMessageHook);
    m_HandlePlayerToServerMapPinSetMapPinAtHook = hooker->FindHookByAddress(API::Functions::CNWSMessage__HandlePlayerToServerMapPinSetMapPinAt);          

    hooker->RequestExclusiveHook<Functions::CNWSMessage__HandlePlayerToServerMapPinChangePin, int32_t,
        CNWSMessage*, CNWSPlayer*>(&HandleMapPinChangePinMessageHook);
    m_HandlePlayerToServerMapPinChangePinHook = hooker->FindHookByAddress(API::Functions::CNWSMessage__HandlePlayerToServerMapPinChangePin);\

    hooker->RequestExclusiveHook<Functions::CNWSMessage__HandlePlayerToServerMapPinDestroyMapPin, int32_t,
        CNWSMessage*, CNWSPlayer*>(&HandleMapPinDestroyMapPinMessageHook);
    m_HandlePlayerToServerMapPinDestroyMapPinHook = hooker->FindHookByAddress(API::Functions::CNWSMessage__HandlePlayerToServerMapPinDestroyMapPin);  
}
template <typename T>
static T PeekMessage(CNWSMessage *pMessage, int32_t offset)
{
    static_assert(std::is_pod<T>::value);
    T value;
    uint8_t *ptr = pMessage->m_pnReadBuffer + pMessage->m_nReadBufferPtr + offset;
    std::memcpy(&value, ptr, sizeof(T));
    return value;
}
int32_t MapEvents::HandleMapPinSetMapPinAtMessageHook(CNWSMessage *thisPtr, CNWSPlayer *pPlayer)
{
    int32_t retVal;
    
    Types::ObjectID oidPlayer = pPlayer ? pPlayer->m_oidNWSObject : Constants::OBJECT_INVALID;
 
    Events::SignalEvent("NWNX_ON_MAP_PIN_ADD_PIN", oidPlayer);
    retVal = m_HandlePlayerToServerMapPinSetMapPinAtHook->CallOriginal<int32_t>(thisPtr, pPlayer);
    return retVal;
}

int32_t MapEvents::HandleMapPinChangePinMessageHook(CNWSMessage *thisPtr, CNWSPlayer *pPlayer)
{
    int32_t retVal;
    
    Types::ObjectID oidPlayer = pPlayer ? pPlayer->m_oidNWSObject : Constants::OBJECT_INVALID;
 
    Events::SignalEvent("NWNX_ON_MAP_PIN_CHANGE_PIN", oidPlayer);
    retVal = m_HandlePlayerToServerMapPinChangePinHook->CallOriginal<int32_t>(thisPtr, pPlayer);
    return retVal;
}

int32_t MapEvents::HandleMapPinDestroyMapPinMessageHook(CNWSMessage *thisPtr, CNWSPlayer *pPlayer)
{
    int32_t retVal;
    
    Types::ObjectID oidPlayer = pPlayer ? pPlayer->m_oidNWSObject : Constants::OBJECT_INVALID;
    static std::string pin_id;
    pin_id = std::to_string(PeekMessage<int32_t>(thisPtr, 0));
 
    Events::PushEventData("NWNX_ON_MAP_PIN_DESTROY_PIN_ID", pin_id);
    Events::SignalEvent("NWNX_ON_MAP_PIN_DESTROY_PIN", oidPlayer);
    retVal = m_HandlePlayerToServerMapPinDestroyMapPinHook->CallOriginal<int32_t>(thisPtr, pPlayer);
    return retVal;
}