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@kaeza kaeza/gist:6adb86d42483990882d3 Secret
Created Nov 11, 2014

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mumble.diff
diff --git a/src/game.cpp b/src/game.cpp
index fee45e3..57fc681 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -71,6 +71,43 @@
#include "drawscene.h"
#include "content_cao.h"
+#include <sys/stat.h> /* For mode constants */
+#include <fcntl.h> /* For O_* constants */
+
+// Needed by Mumble.
+#ifdef WIN32
+#include <windows.h>
+#else
+#include <sys/mman.h>
+#endif
+
+struct LinkedMem {
+#ifdef WIN32
+ UINT32 uiVersion;
+ DWORD uiTick;
+#else
+ u32 uiVersion;
+ u32 uiTick;
+#endif
+ float fAvatarPosition[3];
+ float fAvatarFront[3];
+ float fAvatarTop[3];
+ wchar_t name[256];
+ float fCameraPosition[3];
+ float fCameraFront[3];
+ float fCameraTop[3];
+ wchar_t identity[256];
+#ifdef WIN32
+ UINT32 context_len;
+#else
+ u32 context_len;
+#endif
+ unsigned char context[256];
+ wchar_t description[2048];
+};
+
+LinkedMem *mumblelm = NULL;
+
#ifdef HAVE_TOUCHSCREENGUI
#include "touchscreengui.h"
#endif
@@ -1391,6 +1428,10 @@ class Game
void showOverlayMessage(const char *msg, float dtime, int percent,
bool draw_clouds = true);
+ // Mumble
+ void initMumble(std::string *address, u16 port);
+ void updateMumblePositionalAudio();
+
private:
InputHandler *input;
@@ -1550,6 +1591,8 @@ bool Game::startup(bool *kill,
if (!createClient(playername, password, address, port, error_message))
return false;
+ initMumble(address, port);
+
return true;
}
@@ -1620,6 +1663,7 @@ void Game::run()
flags.show_hud, flags.show_debug);
updateFrame(highlight_boxes, &graph, &stats, &runData, dtime,
flags, cam_view);
+ updateMumblePositionalAudio();
updateProfilerGraphs(&graph);
}
}
@@ -1701,7 +1745,6 @@ bool Game::init(
if (!createSingleplayerServer(map_dir, gamespec, port, address))
return false;
}
-
return true;
}
@@ -1732,6 +1775,53 @@ bool Game::initSound()
return true;
}
+void Game::initMumble(std::string *address, u16 port)
+{
+#ifdef WIN32
+ HANDLE hMapObject = OpenFileMappingW(FILE_MAP_ALL_ACCESS, FALSE, L"MumbleLink");
+ if (hMapObject == NULL)
+ return;
+
+ mumblelm = (LinkedMem *) MapViewOfFile(hMapObject, FILE_MAP_ALL_ACCESS, 0, 0, sizeof(LinkedMem));
+ if (mumblelm == NULL) {
+ CloseHandle(hMapObject);
+ hMapObject = NULL;
+ return;
+ }
+#else
+ char memname[256];
+ snprintf(memname, 256, "/MumbleLink.%d", getuid());
+
+ int shmfd = shm_open(memname, O_RDWR, S_IRUSR | S_IWUSR);
+
+ if (shmfd < 0) {
+ return;
+ }
+
+ mumblelm = (LinkedMem *)(mmap(NULL, sizeof(struct LinkedMem), PROT_READ | PROT_WRITE, MAP_SHARED, shmfd,0));
+
+ if (mumblelm == (void *)(-1)) {
+ mumblelm = NULL;
+ return;
+ }
+#endif
+
+ // Context is equal for players on the same server
+ //TODO allow mods to append something to allow for teams
+ std::stringstream contextstringstream;
+ contextstringstream << (*address) << ":" << port;
+ std::string context = contextstringstream.str();
+ memcpy(mumblelm->context, context.c_str(), context.length());
+ mumblelm->context_len = context.length();
+
+ // Identifier which uniquely identifies the player on the server (nicknames are unique per server)
+ std::string playername = client->getEnv().getLocalPlayer()->getName();
+ std::wstring wplayername;
+ wplayername.assign(playername.begin(), playername.end());
+ wcsncpy(mumblelm->identity, wplayername.c_str(), 256);
+
+}
+
bool Game::createSingleplayerServer(const std::string map_dir,
const SubgameSpec &gamespec, u16 port, std::string *address)
{
@@ -3102,6 +3192,64 @@ void Game::updateSound(f32 dtime)
soundmaker->m_player_step_sound = nodedef_manager->get(n).sound_footstep;
}
+void Game::updateMumblePositionalAudio()
+{
+ LocalPlayer *avatar = client->getEnv().getLocalPlayer();
+ v3f player_position = avatar->getEyePosition();
+ v3f camera_position = camera->getPosition();
+ v3f camera_direction = camera->getDirection();
+ camera_direction = camera_direction.normalize();
+ // Todo: calculate from yaw and pitch
+ v3f player_direction = camera_direction;
+
+ if (! mumblelm)
+ return;
+
+ if(mumblelm->uiVersion != 2) {
+ wcsncpy(mumblelm->name, L"MinetestLink", 256);
+ wcsncpy(mumblelm->description, L"Link to the Minetest game.", 2048);
+ mumblelm->uiVersion = 2;
+ }
+ mumblelm->uiTick++;
+
+ // Left handed coordinate system.
+ // X positive towards "right".
+ // Y positive towards "up".
+ // Z positive towards "front".
+ //
+ // 1 unit = 1 meter
+
+ // Position of the avatar
+ mumblelm->fAvatarPosition[0] = player_position.X;
+ mumblelm->fAvatarPosition[1] = player_position.Y;
+ mumblelm->fAvatarPosition[2] = player_position.Z;
+
+ // Unit vector pointing out of the avatars eyes
+ mumblelm->fAvatarFront[0] = player_direction.X;
+ mumblelm->fAvatarFront[1] = player_direction.Y;
+ mumblelm->fAvatarFront[2] = player_direction.Z;
+
+ // Unit vector pointing out of the top of the avatars head
+ // minetest never lets the player roll or anything so this is always straight up
+ mumblelm->fAvatarTop[0] = 0.0f;
+ mumblelm->fAvatarTop[1] = 1.0f;
+ mumblelm->fAvatarTop[2] = 0.0f;
+
+ // Same as avatar but for the camera.
+ mumblelm->fCameraPosition[0] = camera_position.X;
+ mumblelm->fCameraPosition[1] = camera_position.Y;
+ mumblelm->fCameraPosition[2] = camera_position.Z;
+
+ mumblelm->fCameraFront[0] = camera_direction.X;
+ mumblelm->fCameraFront[1] = camera_direction.Y;
+ mumblelm->fCameraFront[2] = camera_direction.Z;
+
+ mumblelm->fCameraTop[0] = 0.0f;
+ mumblelm->fCameraTop[1] = 1.0f;
+ mumblelm->fCameraTop[2] = 0.0f;
+
+}
+
void Game::processPlayerInteraction(std::vector<aabb3f> &highlight_boxes,
GameRunData *runData, f32 dtime, bool show_hud, bool show_debug)
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