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Merge PR #2248: Fix Left 4 Dead 2 plugin and clean up plugin code
This commit is contained in:
Mikkel Krautz
commit
c8d136febc
@ -1,3 +1,8 @@
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// Copyright 2005-2016 The Mumble Developers. All rights reserved.
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// Use of this source code is governed by a BSD-style license
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// that can be found in the LICENSE file at the root of the
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// Mumble source tree or at <https://www.mumble.info/LICENSE>.
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/* Copyright (C) 2005-2012, Thorvald Natvig <thorvald@natvig.com>
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Copyright (C) 2012, dark_skeleton (d-rez) <dark.skeleton@gmail.com>
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@ -31,48 +36,29 @@
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#include "../mumble_plugin_win32.h"
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/* DESCRIPTION ADDRESS TYPE VALUE
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position tuple: client.dll+0x774B40 float (x, y, z location in inches)
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front tuple: client.dll+0x774BA0 float (x, y, z as unit vector in direction you are facing)
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top tuple: client.dll+0x774BD0 float (x, y, z as unit vector pointing out top of head)
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state: client.dll+0x772ACC byte (0 in menu; non-zero in game)
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context: client.dll+0x772ACC str (see context support below for its possible values)
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*/
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static BYTE *posptr;
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static BYTE *rotptr;
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static BYTE *frontptr;
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static BYTE *topptr;
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static BYTE *stateptr;
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static BYTE *contextptr;
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static bool calcout(float *pos, float *rot, float *opos, float *front, float *top) {
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float h = rot[0];
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float v = rot[1];
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if ((v < -180.0f) || (v > 180.0f) || (h < -180.0f) || (h > 180.0f))
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return false;
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h *= static_cast<float>(M_PI / 180.0f);
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v *= static_cast<float>(M_PI / 180.0f);
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// Seems L4D is in inches. INCHES?!?
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opos[0] = pos[0] / 39.37f;
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opos[1] = pos[2] / 39.37f;
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opos[2] = pos[1] / 39.37f;
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front[0] = cos(v) * cos(h);
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front[1] = -sin(h);
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front[2] = sin(v) * cos(h);
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h -= static_cast<float>(M_PI / 2.0f);
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top[0] = cos(v) * cos(h);
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top[1] = -sin(h);
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top[2] = sin(v) * cos(h);
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/*
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printf("Poll\n");
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printf("%f %f %f : %f %f\n",pos[0],pos[1],pos[2], rot[0], rot[1]);
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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]);
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*/
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return true;
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}
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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*/);
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static int trylock(const std::multimap<std::wstring, unsigned long long int> &pids) {
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posptr = rotptr = stateptr = contextptr = NULL;
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posptr = frontptr = topptr = stateptr = contextptr = NULL;
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if (! initialize(pids, L"left4dead2.exe", L"client.dll"))
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return false;
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/*
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Some hints to make things easier next time valve updates this game:
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use Cheat Engine (non-network single player or non VAC-secured servers to be safe)
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@ -82,32 +68,24 @@ static int trylock(const std::multimap<std::wstring, unsigned long long int> &pi
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speed things up by limiting the scan range to 40000000 to 90000000 (hex number)
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you need addresses relative to client.dll. You can get address by double clicking on the address.
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pos: float likely in a range of 0 to 10000 (changes if you move. constant if you view around)
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rot: float in range of -180 to 180. If you look up the value is -89.0 . If you look down it is 89.0 (changes if you viewaround. constant if you only move)
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state: single player: search for loopback. Go back to menu. There is likely only one instance which has the string when having a game running and empty when not running a game.
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context: same as state appearantly
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pos: float likely in a range of 0 to 10000 (changes if you move. constant if you view around.)
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front: float in range of -1 to 1. (changes if you move your camera. constant if you do not.)
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top: float in range of -1 to 1. (changes if you move your camera. constant if you do not.)
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state: single player -> search for "loopback:0"
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public game -> search for server ip "xxx.xxx.xxx.xxx:yyyyy"
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menu -> empty string ""
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context: same as state (they are used differently)
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*/
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posptr = pModule + 0x8217D0;
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rotptr = pModule + 0x762E04;
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stateptr = pModule + 0x81CB4C;
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contextptr = pModule + 0x81CB4C;
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float apos[3], afront[3], atop[3];
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float cpos[3], cfront[3], ctop[3];
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std::string context;
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std::wstring identity;
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float pos[3];
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float rot[3];
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char state, _context[21];
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bool ok = peekProc(posptr, pos, 12) &&
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peekProc(rotptr, rot, 12) &&
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peekProc(stateptr, &state, 1) &&
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peekProc(contextptr, _context);
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if (ok) {
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float opos[3], top[3], front[3];
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return calcout(pos, rot, opos, top, front);
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}
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if (fetch(apos, afront, atop, cpos, cfront, ctop, context, identity))
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return true;
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generic_unlock();
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return false;
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}
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@ -115,60 +93,85 @@ static int fetch(float *avatar_pos, float *avatar_front, float *avatar_top, floa
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for (int i=0;i<3;i++)
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avatar_pos[i] = avatar_front[i] = avatar_top[i] = camera_pos[i] = camera_front[i] = camera_top[i] = 0.0f;
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float ipos[3], rot[3];
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float pos[3], front[3], top[3];
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bool ok;
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char state;
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char _context[21];
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// when valve updates the game and breaks the plugin, these following 5 addresses will need changed
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// nothing else should need to be modified
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posptr = pModule + 0x774B40;
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frontptr = pModule + 0x774BA0;
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topptr = pModule + 0x774BD0;
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stateptr = pModule + 0x772ACC;
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contextptr = pModule + 0x772ACC;
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// stateptr returns byte values: 0 when map is not loaded; first character in hostname when map is loaded
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ok = peekProc(posptr, ipos, 12) &&
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peekProc(rotptr, rot, 12) &&
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ok = peekProc(posptr, pos, 12) &&
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peekProc(frontptr, front, 12) &&
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peekProc(topptr, top, 12) &&
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peekProc(stateptr, &state, 1) &&
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peekProc(contextptr, _context);
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// in menu -> disable plugin
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if (state == 0) {
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context = std::string(""); // clear context
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return true; // This results in all vectors beeing zero which tells Mumble to ignore them.
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return true; // This results in all vectors being zero which tells Mumble to ignore them.
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}
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if(!ok)
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return false;
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// convert all vectors from right handed coordinate system to left handed coordinate system
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// L4D2 is in inches so convert to meters
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avatar_pos[0] = pos[0] / 39.37f;
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avatar_pos[1] = pos[2] / 39.37f;
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avatar_pos[2] = pos[1] / 39.37f;
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avatar_front[0] = front[0];
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avatar_front[1] = front[2];
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avatar_front[2] = front[1];
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avatar_top[0] = top[0];
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avatar_top[1] = top[2];
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avatar_top[2] = top[1];
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for (int i=0;i<3;++i) {
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camera_pos[i] = avatar_pos[i];
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camera_front[i] = avatar_front[i];
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camera_top[i] = avatar_top[i];
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if (ok) {
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int res = calcout(ipos, rot, avatar_pos, avatar_front, avatar_top);
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if (res) {
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for (int i=0;i<3;++i) {
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camera_pos[i] = avatar_pos[i];
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camera_front[i] = avatar_front[i];
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camera_top[i] = avatar_top[i];
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// Example only -- only set these when you have sane values, and make sure they're pretty constant (every change causes a sever message).
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//context = std::string("server/map/blah");
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//identity = std::wstring(L"STEAM_1:2:3456789");
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}
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_context[sizeof(_context) - 1] = '\0';
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std::string sHost(_context);
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// This string can be either "xxx.xxx.xxx.xxx:yyyyy" (or shorter), "loopback:0" or "" (empty) when in menus. Hence 21 size for char.
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if (!sHost.empty())
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{
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if (sHost.find("loopback") == std::string::npos)
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{
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std::ostringstream newcontext;
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newcontext << "{\"ipport\": \"" << sHost << "\"}";
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context = newcontext.str();
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}
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}
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return res;
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// Example only -- only set these when you have sane values, and make sure they're pretty constant (every change causes a sever message).
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//context = std::string("server/map/blah");
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//identity = std::wstring(L"STEAM_1:2:3456789");
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}
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// context support
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// used to disable positional audio when people are on different servers
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_context[sizeof(_context) - 1] = '\0';
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std::string sHost(_context);
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// this string will change depending on your context:
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// if in public game then server ip -> "xxx.xxx.xxx.xxx:yyyyy"
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// if in single player then loopback -> "loopback:0"
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// if in menu then empty -> ""
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if (!sHost.empty())
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{
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if (sHost.find("loopback") == std::string::npos)
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{
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std::ostringstream newcontext;
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newcontext << "{\"ipport\": \"" << sHost << "\"}";
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context = newcontext.str();
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}
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}
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return false;
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return true;
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}
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static const std::wstring longdesc() {
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return std::wstring(L"Supports L4D2 version 2.1.4.4 with context support. No identity support yet.");
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return std::wstring(L"Supports L4D2 version 2.1.4.5 with context support. No identity support yet.");
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}
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static std::wstring description(L"Left 4 Dead 2 (version 2.1.4.4)");
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static std::wstring description(L"Left 4 Dead 2 (version 2.1.4.5)");
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static std::wstring shortname(L"Left 4 Dead 2");
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static int trylock1() {
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