/* * Code taken from: http://mumble.sourceforge.net/Link * * All code listed below is in the public domain and can be used, shared or * modified freely * * Copyright (C) 2011-2014 The ManaPlus Developers */ #ifdef USE_MUMBLE #include "mumblemanager.h" #include "configuration.h" #include "logger.h" #include "utils/mathutils.h" #ifdef __OpenBSD__ #include <sys/param.h> #endif #include <wchar.h> #include <cctype> #include <fcntl.h> #include <unistd.h> #include <sys/types.h> #include <SDL_syswm.h> #ifndef WIN32 #include <sys/mman.h> #endif #include "debug.h" MumbleManager::MumbleManager() : mLinkedMem(nullptr), mLinkedMemCache() { mMapBase[0] = mMapBase[1] = mMapBase[2] = 0.; init(); } MumbleManager::~MumbleManager() { if (mLinkedMem) { #ifdef WIN32 UnmapViewOfFile(mLinkedMem); #elif defined BSD4_4 #else munmap(mLinkedMem, sizeof(struct LinkedMem)); #endif mLinkedMem = nullptr; } } uint16_t MumbleManager::getMapId(std::string mapName) { uint16_t res = 0; if (mapName.size() != 5 || mapName[3] != '-') { res = getCrc16(mapName); } else { mapName = mapName.substr(0, 3) + mapName[4]; res = static_cast<uint16_t>(atoi(mapName.c_str())); } return res; } void MumbleManager::setMapBase(uint16_t mapid) { mMapBase[0] = 10000.0F * (mapid & 0x1F); mapid >>= 5; mMapBase[1] = 1000.0F * (mapid & 0x3F); mapid >>= 6; mMapBase[2] = 10000.0F * (mapid & 0x1F); } void MumbleManager::init() { #if defined BSD4_4 return; #endif if (mLinkedMem || !config.getBoolValue("enableMumble")) return; logger->log1("MumbleManager::init"); #ifdef WIN32 HANDLE hMapObject = OpenFileMappingW(FILE_MAP_ALL_ACCESS, FALSE, L"MumbleLink"); if (!hMapObject) { logger->log1("MumbleManager::init can't open MumbleLink"); return; } mLinkedMem = reinterpret_cast<LinkedMem *>(MapViewOfFile(hMapObject, FILE_MAP_ALL_ACCESS, 0, 0, sizeof(LinkedMem))); if (!mLinkedMem) { CloseHandle(hMapObject); hMapObject = nullptr; logger->log1("MumbleManager::init can't map MumbleLink"); return; } #elif defined BSD4_4 #else char memName[256]; snprintf(memName, sizeof(memName), "/MumbleLink.%u", getuid()); const int shmfd = shm_open(memName, O_RDWR, S_IRUSR | S_IWUSR); if (shmfd < 0) { logger->log1("MumbleManager::init can't" " open shared memory MumbleLink"); return; } mLinkedMem = static_cast<LinkedMem *>(mmap(nullptr, sizeof(struct LinkedMem), PROT_READ | PROT_WRITE, MAP_SHARED, shmfd, 0)); if (mLinkedMem == reinterpret_cast<void *>(-1)) { mLinkedMem = nullptr; logger->log1("MumbleManager::init can't map MumbleLink"); return; } #endif wcsncpy(mLinkedMemCache.name, L"ManaPlus", 256); wcsncpy(mLinkedMemCache.description, L"ManaPlus Plugin", 2048); mLinkedMemCache.uiVersion = 2; // Left handed coordinate system. // X positive towards "left". // Y positive towards "up". // Z positive towards "into screen". // // 1 unit = 1 meter // Unit vector pointing out of the avatars eyes // (here Front looks into scene). /* no way to look "up", 2d */ mLinkedMemCache.fAvatarFront[1] = 0.0F; // Unit vector pointing out of the top of the avatars head // (here Top looks straight up). /* no way to change this in tmw */ mLinkedMemCache.fAvatarTop[0] = 0.0F; mLinkedMemCache.fAvatarTop[1] = 1.0F; mLinkedMemCache.fAvatarTop[2] = 0.0F; mLinkedMemCache.fCameraFront[0] = 0.0F; mLinkedMemCache.fCameraFront[1] = 0.0F; mLinkedMemCache.fCameraFront[2] = 1.0F; mLinkedMemCache.fCameraTop[0] = 0.0F; mLinkedMemCache.fCameraTop[1] = 1.0F; mLinkedMemCache.fCameraTop[2] = 0.0F; mLinkedMemCache.uiTick++; } void MumbleManager::setPlayer(const std::string &userName) { if (!mLinkedMem) return; // Identifier which uniquely identifies a certain player in a context // (e.g. the ingame Name). mbstowcs(mLinkedMemCache.identity, userName.c_str(), 256); mLinkedMemCache.uiTick ++; memcpy(mLinkedMem, &mLinkedMemCache, sizeof(mLinkedMemCache)); } void MumbleManager::setAction(const int action) { if (!mLinkedMem) return; switch (action) { case 0: /* STAND */ case 1: /* WALK */ case 2: /* ATTACK */ case 5: /* HURT */ mLinkedMemCache.fAvatarPosition[1] = 1.5F; break; case 3: /* SIT */ mLinkedMemCache.fAvatarPosition[1] = 1.0F; break; case 4: /* DEAD */ default: mLinkedMemCache.fAvatarPosition[1] = 0.0F; break; } mLinkedMemCache.fAvatarPosition[1] += mMapBase[1]; mLinkedMemCache.fCameraPosition[1] = mLinkedMemCache.fAvatarPosition[1]; mLinkedMemCache.uiTick++; memcpy(mLinkedMem, &mLinkedMemCache, sizeof(mLinkedMemCache)); } void MumbleManager::setPos(const int tileX, const int tileY, const int direction) { if (!mLinkedMem) return; // Position of the avatar (here standing slightly off the origin) // lm->fAvatarPosition /* tmw coordinates work exactly the other way round */ mLinkedMemCache.fAvatarPosition[0] = static_cast<float>(tileX) + mMapBase[0]; mLinkedMemCache.fAvatarPosition[2] = static_cast<float>(tileY) + mMapBase[2]; // Same as avatar but for the camera. // lm->fCameraPosition, fCameraFront, fCameraTop // Same as avatar but for the camera. mLinkedMemCache.fCameraPosition[0] = mLinkedMemCache.fAvatarPosition[0]; mLinkedMemCache.fCameraPosition[2] = mLinkedMemCache.fAvatarPosition[2]; // Unit vector pointing out of the avatars eyes // (here Front looks into scene). switch (direction) { case 4: /* UP */ mLinkedMemCache.fAvatarFront[0] = 0.0F; mLinkedMemCache.fAvatarFront[2] = 1.0F; break; case 1: /* DOWN */ mLinkedMemCache.fAvatarFront[0] = 0.0F; mLinkedMemCache.fAvatarFront[2] = -1.0F; break; case 2: /* LEFT */ mLinkedMemCache.fAvatarFront[0] = 1.0F; mLinkedMemCache.fAvatarFront[2] = 0.0F; break; case 8: /* RIGHT */ mLinkedMemCache.fAvatarFront[0] = -1.0F; mLinkedMemCache.fAvatarFront[2] = 0.0F; break; default: break; } mLinkedMemCache.uiTick ++; memcpy(mLinkedMem, &mLinkedMemCache, sizeof(mLinkedMemCache)); } void MumbleManager::setMap(const std::string &mapName) { if (!mLinkedMem) return; // Context should be equal for players which should be able to hear each // other positional and differ for those who shouldn't // (e.g. it could contain the server+port and team) setMapBase(getMapId(mapName)); setAction(0); /* update y coordinate */ } void MumbleManager::setServer(const std::string &serverName) { if (!mLinkedMem) return; unsigned size = static_cast<unsigned>(serverName.size()); if (size > sizeof(mLinkedMemCache.context) - 1) size = sizeof(mLinkedMemCache.context) - 1; memset(mLinkedMemCache.context, 0, sizeof(mLinkedMemCache.context)); memcpy(mLinkedMemCache.context, serverName.c_str(), size); mLinkedMemCache.context[size] = '\0'; mLinkedMemCache.context_len = size; mLinkedMemCache.uiTick ++; memcpy(mLinkedMem, &mLinkedMemCache, sizeof(mLinkedMemCache)); } #endif