1 files changed, 273 insertions, 0 deletions
diff --git a/src/mumblemanager.cpp b/src/mumblemanager.cpp
new file mode 100644
index 000000000..6586f9546
--- /dev/null
+++ b/src/mumblemanager.cpp
@@ -0,0 +1,273 @@
+/* Code taken from: http://mumble.sourceforge.net/Link */
+
+#include "mumblemanager.h"
+
+#include "configuration.h"
+#include "log.h"
+
+#include "utils/mathutils.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <wchar.h>
+#include <string.h>
+#include <ctype.h>
+
+#include <stdint.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+#include <SDL_syswm.h>
+
+#ifndef WIN32
+#include <sys/mman.h>
+#endif 
+
+MumbleManager::MumbleManager() :
+    mLinkedMem(0)
+{
+    mMapBase[0] = mMapBase[1] = mMapBase[2] = 0.;
+    init();
+}
+
+MumbleManager::~MumbleManager()
+{
+    if (mLinkedMem)
+    {
+#ifdef WIN32
+        UnmapViewOfFile(mLinkedMem);
+#elif defined __FreeBSD__ || defined __DragonFly__
+#else
+        munmap(mLinkedMem, sizeof(struct LinkedMem));
+#endif
+        mLinkedMem = 0;
+    }
+}
+
+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 = atoi(mapName.c_str());
+    }
+    return res;
+}
+
+void MumbleManager::setMapBase(uint16_t mapid)
+{
+    mMapBase[0] = 10000. * (mapid & 0x1f);
+    mapid >>= 5;
+    mMapBase[1] = 1000. * (mapid & 0x3f);
+    mapid >>= 6;
+    mMapBase[2] = 10000. * (mapid & 0x1f);
+}
+
+void MumbleManager::init()
+{
+#if defined __FreeBSD__ || defined __DragonFly__
+    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 == NULL)
+    {
+        logger->log1("MumbleManager::init cant open MumbleLink");
+        return;
+    }
+
+    mLinkedMem = (LinkedMem *) MapViewOfFile(hMapObject,
+        FILE_MAP_ALL_ACCESS, 0, 0, sizeof(LinkedMem));
+
+    if (mLinkedMem == NULL)
+    {
+        CloseHandle(hMapObject);
+        hMapObject = NULL;
+        logger->log1("MumbleManager::init cant map MumbleLink");
+        return;
+    }
+#elif defined __FreeBSD__ || defined __DragonFly__
+#else
+    char memName[256];
+    snprintf(memName, 256, "/MumbleLink.%d", getuid());
+
+    int shmfd = shm_open(memName, O_RDWR, S_IRUSR | S_IWUSR);
+
+    if (shmfd < 0)
+    {
+        logger->log1("MumbleManager::init cant open shared memory MumbleLink");
+        return;
+    }
+
+    mLinkedMem = (LinkedMem *)(mmap(NULL, sizeof(struct LinkedMem),
+        PROT_READ | PROT_WRITE, MAP_SHARED, shmfd, 0));
+
+    if (mLinkedMem == (void *)(-1))
+    {
+        mLinkedMem = NULL;
+        logger->log1("MumbleManager::init cant map MumbleLink");
+        return;
+    }
+
+#endif
+    wcsncpy(mLinkedMemCache.name, L"Mana", 256);
+    wcsncpy(mLinkedMemCache.description, L"TheManaWorld 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(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(int tileX, int tileY, 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] = tileX + mMapBase[0];
+    mLinkedMemCache.fAvatarPosition[2] = 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 = 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));
+}