Skip to content
Permalink
Browse files

Merge PR #2609: plugins/l4d: total revamp and identity support

  • Loading branch information...
davidebeatrici committed Oct 30, 2016
2 parents b96bd07 + dead5a7 commit f836ed42acea37e63693d6a42f1db89e40f011f7
Showing with 139 additions and 68 deletions.
  1. +139 −68 plugins/l4d/l4d.cpp
@@ -3,102 +3,173 @@
// that can be found in the LICENSE file at the root of the
// Mumble source tree or at <https://www.mumble.info/LICENSE>.

#include "../mumble_plugin_win32_32bit.h"
#include "../mumble_plugin_win32_32bit.h" // Include standard plugin header.
#include "../mumble_plugin_utils.h" // Include plugin header for special functions, like "escape".

procptr32_t posptr, rotptr;
static procptr32_t steamclient, engine; // Variables to contain modules addresses

static bool calcout(float *pos, float *rot, float *opos, float *front, float *top) {
float h = rot[0];
float v = rot[1];
static int fetch(float *avatar_pos, float *avatar_front, float *avatar_top, float *camera_pos, float *camera_front, float *camera_top, std::string &context, std::wstring &identity) {
for (int i=0;i<3;i++) {
avatar_pos[i] = avatar_front[i] = avatar_top[i] = camera_pos[i] = camera_front[i] = camera_top[i] = 0.0f;
}

if ((v < -180.0f) || (v > 180.0f) || (h < -180.0f) || (h > 180.0f))
// Boolean value to check if game addresses retrieval is successful
bool ok;
// Create containers to stuff our raw data into, so we can convert it to Mumble's coordinate system
float avatar_pos_corrector[3], camera_pos_corrector[3], camera_front_corrector[3], camera_top_corrector[3];
// Char values for extra features
char serverid[22], host[22], map[30], playerid[22];
// State
bool state;

// State pointers
procptr32_t state_base = peekProc<procptr32_t>(pModule + 0x5A7354);
if (state_base == 0) return false;
procptr32_t state_offset = peekProc<procptr32_t>(state_base + 0x5C);
if (state_offset == 0) return false;

// Peekproc and assign game addresses to our containers, so we can retrieve positional data
ok = peekProc(state_offset + 0x8, state) && // Magical state value: 0 when not playing and 1 when in-game.
peekProc(pModule + 0x512264, avatar_pos_corrector) && // Avatar position values (X, Z and Y).
peekProc(pModule + 0x5943B0, camera_pos_corrector) && // Camera position values (X, Z and Y).
peekProc(pModule + 0x594410, camera_front_corrector) && // Front vector values (X, Z and Y).
peekProc(pModule + 0x594440, camera_top_corrector) && // Top vector values (X, Z and Y).
peekProc(steamclient + 0x95E56D, serverid) && // Unique server Steam ID.
peekProc(engine + 0x61F5D8, host) && // Server value: "IP:Port" (xxx.xxx.xxx.xxx:yyyyy) when in a remote server and "loopback" when on a local server.
peekProc(pModule + 0x5A7A29, map) && // Map name.
peekProc(engine + 0x40CF00, playerid); // Unique player Steam ID.

// This prevents the plugin from linking to the game in case something goes wrong during values retrieval from memory addresses.
if (! ok)
return false;

h *= static_cast<float>(M_PI / 180.0f);
v *= static_cast<float>(M_PI / 180.0f);
// State
if (!state) { // If not in-game
context.clear(); // Clear context
identity.clear(); // Clear identity

// Set vectors values to 0.
for (int i=0;i<3;i++) {
avatar_pos[i] = avatar_front[i] = avatar_top[i] = camera_pos[i] = camera_front[i] = camera_top[i] = 0.0f;
}

return true; // This tells Mumble to ignore all vectors.
}

// Begin context
escape(serverid, sizeof(serverid));
escape(host, sizeof(host));
std::ostringstream ocontext;
if (strcmp(serverid, "") != 0) {
ocontext << " {\"Server ID\": \"" << serverid << "\"}"; // Set context with server ID
} else {
ocontext << " {\"Host\": \"" << host << "\"}"; // Set context with IP address and port
}

context = ocontext.str();
// End context

// Begin identity
std::wostringstream oidentity;
oidentity << "{";

// Seems L4D is in inches. INCHES?!?
opos[0] = pos[0] / 39.37f;
opos[1] = pos[2] / 39.37f;
opos[2] = pos[1] / 39.37f;
// Host
if (strcmp(host, "") != 0 && strstr(host, "loopback") == NULL) { // Only include host (IP:Port) if it is not empty and does not include the string "loopback" (which means it's a local server).
oidentity << std::endl << "\"Host\": \"" << host << "\","; // Set host address in identity.
} else {
oidentity << std::endl << "\"Host\": null,";
}

// Map
escape(map, sizeof(map));
if (strcmp(map, "") != 0) {
oidentity << std::endl << "\"Map\": \"" << map << "\","; // Set map name in identity.
} else {
oidentity << std::endl << "\"Map\": null,";
}

front[0] = cos(v) * cos(h);
front[1] = -sin(h);
front[2] = sin(v) * cos(h);
// Player ID
escape(playerid, sizeof(playerid));
if (strcmp(playerid, "") != 0) {
oidentity << std::endl << "\"Player ID\": \"" << playerid << "\""; // Set player ID in identity.
} else {
oidentity << std::endl << "\"Player ID\": null";
}

h -= static_cast<float>(M_PI / 2.0f);
oidentity << std::endl << "}";
identity = oidentity.str();
// End identity

top[0] = cos(v) * cos(h);
top[1] = -sin(h);
top[2] = sin(v) * cos(h);
/*
printf("Poll\n");
printf("%f %f %f : %f %f\n",pos[0],pos[1],pos[2], rot[0], rot[1]);
printf("%f %f %f :: %.2f %.2f %.2f :: %.2f %.2f %.2f\n", opos[0], opos[1], opos[2], front[0], front[1], front[2], top[0], top[1], top[2]);
Mumble | Game
X | X
Y | Z
Z | Y
*/
avatar_pos[0] = avatar_pos_corrector[0];
avatar_pos[1] = avatar_pos_corrector[2];
avatar_pos[2] = avatar_pos_corrector[1];

camera_pos[0] = camera_pos_corrector[0];
camera_pos[1] = camera_pos_corrector[2];
camera_pos[2] = camera_pos_corrector[1];

camera_front[0] = camera_front_corrector[0];
camera_front[1] = camera_front_corrector[2];
camera_front[2] = camera_front_corrector[1];

camera_top[0] = camera_top_corrector[0];
camera_top[1] = camera_top_corrector[2];
camera_top[2] = camera_top_corrector[1];

// Convert from inches to meters and sync avatar vectors with camera ones
for (int i=0;i<3;i++) {
avatar_pos[i]/=39.37f;
camera_pos[i]/=39.37f;
avatar_front[i] = camera_front[i];
avatar_top[i] = camera_top[i];
}

return true;
}

static int trylock(const std::multimap<std::wstring, unsigned long long int> &pids) {
posptr = rotptr = NULL;

if (! initialize(pids, L"left4dead.exe", L"client.dll"))
if (! initialize(pids, L"left4dead.exe", L"client.dll")) { // Retrieve "client.dll" module's memory address
return false;

posptr = pModule + 0x596E30;
rotptr = pModule + 0x596E3C;

float pos[3];
float rot[3];

bool ok = peekProc(posptr, pos, 12) &&
peekProc(rotptr, rot, 12);

if (ok) {
float opos[3], top[3], front[3];
return calcout(pos, rot, opos, top, front);
}

generic_unlock();

return false;
}
// Server ID
steamclient = getModuleAddr(L"steamclient.dll"); // Retrieve "steamclient.dll" module's memory address
// This prevents the plugin from linking to the game in case something goes wrong during module's memory address retrieval.
if (steamclient == 0)
return false;

static int fetch(float *avatar_pos, float *avatar_front, float *avatar_top, float *camera_pos, float *camera_front, float *camera_top, std::string &context, std::wstring &identity) {
for (int i=0;i<3;i++)
avatar_pos[i] = avatar_front[i] = avatar_top[i] = camera_pos[i] = camera_front[i] = camera_top[i] = 0.0f;
// Host & Player ID
engine = getModuleAddr(L"engine.dll"); // Retrieve "engine.dll" module's memory address
// This prevents the plugin from linking to the game in case something goes wrong during module's memory address retrieval.
if (engine == 0)
return false;

float ipos[3], rot[3];
bool ok;
// Check if we can get meaningful data from it
float apos[3], afront[3], atop[3], cpos[3], cfront[3], ctop[3];
std::wstring sidentity;
std::string scontext;

ok = peekProc(posptr, ipos, 12) &&
peekProc(rotptr, rot, 12);

if (ok) {
int res = calcout(ipos, rot, avatar_pos, avatar_front, avatar_top);
if (res) {
for (int i=0;i<3;++i) {
camera_pos[i] = avatar_pos[i];
camera_front[i] = avatar_front[i];
camera_top[i] = avatar_top[i];

// Example only -- only set these when you have sane values, and make sure they're pretty constant (every change causes a sever message).
context = std::string("server/map/blah");
identity = std::wstring(L"STEAM_1:2:3456789");
}
return res;
}
if (fetch(apos, afront, atop, cpos, cfront, ctop, scontext, sidentity)) {
return true;
} else {
generic_unlock();
return false;
}

return false;
}

static const std::wstring longdesc() {
return std::wstring(L"Supports L4D version 4440 only. Supports no fancy stuff.");
return std::wstring(L"Supports Left 4 Dead version 1.0.3.1 with context and identity support."); // Plugin long description
}

static std::wstring description(L"Left 4 Dead (Build 4440)");
static std::wstring shortname(L"Left 4 Dead");
static std::wstring description(L"Left 4 Dead (v1.0.3.1)"); // Plugin short description
static std::wstring shortname(L"Left 4 Dead"); // Plugin short name

static int trylock1() {
return trylock(std::multimap<std::wstring, unsigned long long int>());

0 comments on commit f836ed4

Please sign in to comment.
You can’t perform that action at this time.