TESHitEvent

GameEvents.h

struct TESHitEvent
{
    enum HitEventFlags {
        kFlag_Unk0          = (1 << 0),     // (Unk0 | Unk1) - blocked
        kFlag_Unk1          = (1 << 1),
        kFlag_CriticalHit   = (1 << 3),
        kFlag_SneakAttack   = (1 << 11),
        kFlag_Unk15         = (1 << 15),    // (Unk15 | Unk16) - bash
        kFlag_Unk16         = (1 << 16),
        kFlag_PowerAttack   = (1 << 17),
    };
    
    NiPoint3        position;                   // 00
    UInt32          unk0C[(0x40-0x0C)/4];       // 0C
    UInt32          attackerHandle;             // 40
    UInt32          targetHandle;               // 44
    UInt64          unk48;                      // 48
    void*           attackData;                 // 50 - BGSAttackData*
    TESForm*        source;                     // 58 - e.g. TESObjectWEAP*
    void*           sourceInstanceData;         // 60
    UInt64          unk68[(0x80-0x68)/8];       // 68
    TESAmmo*        ammo;                       // 80
    UInt64          unk88;                      // 88
    float           effectiveDamage;            // 90 - effectiveDamage = baseDamage + damage bonus (body part multiplier)
    float           incomingDamage;             // 94
    float           baseDamage;                 // 98 - baseDamage = incomingDamage - negatedDamage
    float           unk9C;                      // 9C
    float           unkA0;                      // A0
    float           negatedDamage;              // A4
    UInt64          unkA8;                      // A8
    float           attackDamageMultiplier;     // B0 - Sneak attack muliplier
    UInt32          unkB4[(0xC4-0xB4)/4];       // B4
    UInt32          flags;                      // C4
    UInt64          unkC8[(0xE0-0xC8)/8];       // C8
    TESObjectREFR*  target;                     // E0 - If null, use handle
    TESObjectREFR*  attacker;                   // E8 - If null, use handle
    UInt64          unkF0;                      // F0
    UInt32          sourceFormID;               // F8 - May be null
    UInt32          projectileFormID;           // FC - May be null
    bool            unk100;                     // 100
    char            pad101[7];                  // 101
};
STATIC_ASSERT(offsetof(TESHitEvent, unk100) == 0x100);

DECLARE_EVENT_DISPATCHER(TESHitEvent, 0x004444D0);  // v1.10.26

YourPlugin.cpp

// Add event sink
auto eventDispatcher = GetEventDispatcher<TESHitEvent>();
eventDispatcher->lock.Lock();
for (int i = 0; i < eventDispatcher->eventSinks.count; i++) {
    if (eventDispatcher->eventSinks[i] == &hitEventSink) {
        eventDispatcher->lock.Release();
        return false;
    }
}
eventDispatcher->eventSinks.Push(&hitEventSink);
eventDispatcher->lock.Release();