AVI decoded for F4SE plugin. (reg2k)

GameForms.cpp

RelocAddr<uintptr_t> s_AVFunctorVtbl(0x02C98598);

bool ActorValueInfo::AddDependentAV(ActorValueInfo* avif)
{
    if (numDependentAVs < sizeof(dependentAVs) / 8)
    {
        dependentAVs[numDependentAVs++] = avif;
        return true;
    }
    return false;
}

void ActorValueInfo::RegisterDerivedBaseFunction(float(*f)(ActorValueOwner*, ActorValueInfo*))
{
    derived_func_impl = reinterpret_cast<void*>(s_AVFunctorVtbl.GetUIntPtr());
    derived_func_ptr = &derived_func_impl;
    derived_func = f;
}

GameForms.h

// 190
class ActorValueInfo : public TESForm
{
public:
    enum { kTypeID = kFormType_AVIF };
 
    TESFullName       fullName;             // 20
    TESDescription    description;          // 30
 
    void            * func_impl;            // 48
    void            * func;                 // 50
    UInt64            unk58;                // 58
    void            * func_ptr;             // 60 - address of offset 48
 
    const char      * avName;               // 68
    UInt64            unk70;                // 70
    ActorValueInfo  * dependentAVs[0xF];    // 78
 
    void            * derived_func_impl;    // F0
    void            * derived_func;         // F8
    UInt64            unk100;               // 100
    void            * derived_func_ptr;     // 108 - address of offset F0
 
    UInt32    unk110[(0x16C - 0x110) / 4];  // 110
 
    UInt32    avFlags;                      // 16C
    enum AVFlags
    {
        kFlag_DefaultBase_0             = (1 << 10),    // 10 | Default Base: 0
        kFlag_DefaultBase_1             = (1 << 11),    // 11 | Default Base: 1
        kFlag_DefaultBase_100           = (1 << 12),    // 12 | Default Base: 100
        kFlag_DefaultBase_UserDefined   = (1 << 13),    // 13 | Default Base: User Defined
        kFlag_DefaultBase_Derived       = (1 << 15),    // 15 | Default Base: Derived (bits 10-13 must not be set)
        kFlag_DamageIsPositive          = (1 << 26),    // 26 | Damage is Positive
        kFlag_GodModeImmune             = (1 << 27),    // 27 | God Mode Immune
        kFlag_Hardcoded                 = (1 << 31)     // 31 | Hardcoded
    };
 
    UInt32    unk170;                       // 170
    UInt32    numDependentAVs;              // 174
    UInt32    unk178;                       // 178
    UInt32    unk17C;                       // 17C
    UInt32    unk180;                       // 180
    float     defaultBase;                  // 184
    UInt32    unk188;                       // 188
    UInt32    unk18C;                       // 18C
 
    bool AddDependentAV(ActorValueInfo* avif);
    void RegisterDerivedBaseFunction(float(*f)(ActorValueOwner*, ActorValueInfo*));
};

YourPlugin.cpp

float CalculateStat(ActorValueOwner* actorValueOwner, ActorValueInfo* actorValueInfo) {
    // Do derived attribute calculation here
    return 9999.99;
}

// Register derivation function
ActorValueInfo* derivedAV = DYNAMIC_CAST(LookupFormByID(0x2F000F99), TESForm, ActorValueInfo);
derivedAV->RegisterDerivedBaseFunction(CalculateStat);

// Add as dependent to agility
ActorValueInfo* agilityAV = DYNAMIC_CAST(LookupFormByID(0x2C7), TESForm, ActorValueInfo);
agilityAV->AddDependentAV(derivedAV);