whoa/src/object/client/Util.cpp

#include "object/client/Util.hpp"
#include "object/client/CClientObjCreate.hpp"
#include "object/client/CGContainer_C.hpp"
#include "object/client/CGCorpse_C.hpp"
#include "object/client/CGDynamicObject_C.hpp"
#include "object/client/CGGameObject_C.hpp"
#include "object/client/CGItem_C.hpp"
#include "object/client/CGObject_C.hpp"
#include "object/client/CGPlayer_C.hpp"
#include "object/client/CGUnit_C.hpp"
#include "object/client/ObjMgr.hpp"
#include <common/Time.hpp>

CGObject_C* FindActiveObject(WOWGUID guid) {
    return ClntObjMgrGetCurrent()->m_objects.Ptr(guid, CHashKeyGUID(guid));
}

/**
 * Given an object type and collection age, free the object at the head of that type's FIFO queue
 * if it was disabled longer ago than the collection age. Only frees at most one object per call.
 */
void GarbageCollect(OBJECT_TYPE_ID typeID, uint32_t collectAgeMs) {
    auto object = ClntObjMgrGetCurrent()->m_lazyCleanupFifo[typeID - 1].Head();

    if (!object) {
        return;
    }

    uint32_t disableAgeMs = OsGetAsyncTimeMsPrecise() - object->m_disableTimeMs;

    if (disableAgeMs < collectAgeMs) {
        return;
    }

    ClntObjMgrGetCurrent()->m_lazyCleanupObjects.Unlink(object);
    object->m_link.Unlink();

    ClntObjMgrFreeObject(object);
}

CGObject_C* GetUpdateObject(WOWGUID guid, int32_t* reenable) {
    *reenable = false;

    // Active object

    auto activeObject = FindActiveObject(guid);

    if (activeObject) {
        activeObject->SetDisablePending(false);

        return activeObject;
    }

    // Disabled object

    auto disabledObject = ClntObjMgrGetCurrent()->m_lazyCleanupObjects.Ptr(guid, CHashKeyGUID(guid));

    if (disabledObject) {
        ClntObjMgrGetCurrent()->m_lazyCleanupObjects.Unlink(disabledObject);
        disabledObject->m_link.Unlink();

        ClntObjMgrGetCurrent()->m_objects.Insert(disabledObject, guid, CHashKeyGUID(guid));

        // These link checks are guaranteed to pass because of the unlink above (both lists share
        // the same link). This check is either from an inlined function or is cruft left behind
        // after a refactor.
        if (
            !ClntObjMgrGetCurrent()->m_visibleObjects.IsLinked(disabledObject)
            && !ClntObjMgrGetCurrent()->m_reenabledObjects.IsLinked(disabledObject)
        ) {
            *reenable = true;
            ClntObjMgrGetCurrent()->m_reenabledObjects.LinkToTail(disabledObject);
        }

        return disabledObject;
    }

    // Object not found

    return nullptr;
}

int32_t HandleObjectOutOfRangePass1(CGObject_C* object, OUT_OF_RANGE_TYPE type) {
    // TODO arena unit out of range handling

    object->HandleOutOfRange(type);

    if (object->IsObjectLocked()) {
        object->SetDisablePending(true);

        return false;
    }

    object->SetDisablePending(false);
    object->Disable();

    return true;
}

void HandleObjectOutOfRangePass2(CGObject_C* object) {
    // TODO ClearObjectMirrorHandlers(object);

    ClntObjMgrGetCurrent()->m_objects.Unlink(object);

    if (ClntObjMgrGetCurrent()->m_visibleObjects.IsLinked(object)) {
        ClntObjMgrGetCurrent()->m_visibleObjects.UnlinkNode(object);
    }

    ClntObjMgrGetCurrent()->m_lazyCleanupObjects.Insert(object, object->m_hashval, CHashKeyGUID(object->m_key));
    ClntObjMgrGetCurrent()->m_lazyCleanupFifo[object->m_typeID - 1].LinkToTail(object);
}

void InitObject(CGObject_C* object, uint32_t time, CClientObjCreate& objCreate) {
    switch (object->m_typeID) {
        case ID_ITEM: {
            new (object) CGItem_C(time, objCreate);

            break;
        }

        case ID_CONTAINER: {
            new (object) CGContainer_C(time, objCreate);

            break;
        }

        case ID_UNIT: {
            new (object) CGUnit_C(time, objCreate);
            object->AddWorldObject();

            break;
        }

        case ID_PLAYER: {
            new (object) CGPlayer_C(time, objCreate);
            object->AddWorldObject();

            break;
        }

        case ID_GAMEOBJECT: {
            new (object) CGGameObject_C(time, objCreate);
            object->AddWorldObject();

            break;
        }

        case ID_DYNAMICOBJECT: {
            new (object) CGDynamicObject_C(time, objCreate);
            object->AddWorldObject();

            break;
        }

        case ID_CORPSE: {
            new (object) CGCorpse_C(time, objCreate);
            object->AddWorldObject();

            break;
        }

        default: {
            break;
        }
    }
}