cmsghandler

CMsgHandler::CMsgHandler()
{
    this->m_hWnd = NULL;
}

CMsgHandler::~CMsgHandler()
{
}

BOOL CMsgHandler::Init(__in HINSTANCE hInstance)
{
    WNDCLASSEX wc = { 0 };

    wc.cbSize = sizeof(WNDCLASSEX);
    wc.lpfnWndProc = CMsgHandler::WindowProc;
    wc.hInstance = hInstance;
    wc.lpszClassName = TEXT(CLASS_NAME);

    if (!RegisterClassEx(&wc))
    {
        // :'(
        return FALSE;
    }

    this->m_hWnd = CreateWindowEx(0, TEXT(CLASS_NAME), NULL, 0, 0, 0, 0, 0, HWND_MESSAGE, NULL, hInstance, NULL);
    if (!this->m_hWnd)
    {
        UnregisterClass(TEXT(CLASS_NAME), NULL);
        return FALSE;
    }

    this->m_hInstance = hInstance;

    // invisible window
    ShowWindow(this->m_hWnd, SW_HIDE);

    return TRUE;
}

VOID CMsgHandler::Destroy()
{
    if (this->m_hWnd != NULL)
    {
        DestroyWindow(this->m_hWnd);
        this->m_hWnd = NULL;
    }

    UnregisterClass(TEXT(CLASS_NAME), this->m_hInstance);
}

HWND CMsgHandler::GetHandle()
{
    return this->m_hWnd;
}

LRESULT CALLBACK CMsgHandler::WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    CUserLocal *pUserLocal;
    CWvsContext *pWvsContext;
    CPortalList *pPortalList;
    CharacterData *cd;
    POINT pt;
    CField *pField;

    switch (uMsg)
    {
        case WM_CLOSE:
        {
            CMsgHandler::GetInstance()->Destroy();
            break;
        }
        case WM_GET_USER_POS:
        {
            LPPOINT lppt = (LPPOINT)lParam;
            pUserLocal = CUserLocal::GetInstance();
            if (!pUserLocal)
            {
                lppt->x = 0;
                lppt->y = 0;
                return FALSE;
            }
            else
            {
                pUserLocal->VecCtrl.vfptr->GetPos(&pUserLocal->VecCtrl, lppt);
            }
            break;
        }
        case WM_GET_MAPID:
        {
            *(DWORD*)lParam = get_field_id();
            break;
        }
        case WM_TALK_NPC:
        {
            CNpcPool *pNpcPool = CNpcPool::GetInstance();
            pUserLocal = CUserLocal::GetInstance();
            if (!pNpcPool || !pUserLocal)
                return FALSE;

            CNpc *pNpc = pNpcPool->FindNpcByTemplateID(wParam);
            if (!pNpc)
                return FALSE;

            ZRef<CNpc> ref;
            ref.p = pNpc;
            InterlockedIncrement(&pNpc->ZRefCounted._m_nRef);
            pUserLocal->TalkToNpc(ref);
            break;
        }
        case WM_OnKey:
        {
            CWndMan *pWndMan = CWndMan::GetInstance();
            if (!pWndMan || !pWndMan->m_pFocus)
            {
                return FALSE;
            }
            pWndMan->m_pFocus->vfptr->OnKey(pWndMan->m_pFocus, wParam, lParam);
            break;
        }
        case WM_ChangeChannel:
        {
            int nTargetChannel;

            pUserLocal = CUserLocal::GetInstance();
            pWvsContext = CWvsContext::GetInstance();
            pField = get_field();
            if (!pUserLocal || !pWvsContext || !pField ||
                !pWvsContext->CanSendExclRequest(500, FALSE))
            {
                return FALSE;
            }

            nTargetChannel = wParam;
            if (nTargetChannel == -1)
            {
                if (is_starplanet_field(get_field_id()))
                    nTargetChannel = pWvsContext->m_nChannelID == 2 ? 3 : 2;
                else
                    nTargetChannel = pWvsContext->m_nChannelID + 1; // lazy af
            }

            if (pWvsContext->m_nChannelID == nTargetChannel)
                return FALSE;

            pField->SendTransferChannelRequest(nTargetChannel);
            break;
        }
        default:
            return DefWindowProc(hwnd, uMsg, wParam, lParam);
    }

    return TRUE;
}