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#define _USE_MATH_DEFINES
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <tlhelp32.h>
#include <math.h>
#include "../mumble_plugin.h"
HANDLE h = NULL;
static DWORD getProcess(const wchar_t *exename) {
PROCESSENTRY32 pe;
DWORD pid = 0;
pe.dwSize = sizeof(pe);
HANDLE hSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
if (hSnap != INVALID_HANDLE_VALUE) {
BOOL ok = Process32First(hSnap, &pe);
while (ok) {
if (wcscmp(pe.szExeFile, exename)==0) {
pid = pe.th32ProcessID;
break;
}
ok = Process32Next(hSnap, &pe);
}
CloseHandle(hSnap);
}
return pid;
}
static BYTE *getModuleAddr(DWORD pid, const wchar_t *modname) {
MODULEENTRY32 me;
BYTE *addr = NULL;
me.dwSize = sizeof(me);
HANDLE hSnap = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pid);
if (hSnap != INVALID_HANDLE_VALUE) {
BOOL ok = Module32First(hSnap, &me);
while (ok) {
if (wcscmp(me.szModule, modname)==0) {
addr = me.modBaseAddr;
break;
}
ok = Module32Next(hSnap, &me);
}
CloseHandle(hSnap);
}
return addr;
}
static bool peekProc(VOID *base, VOID *dest, SIZE_T len) {
SIZE_T r;
BOOL ok=ReadProcessMemory(h, base, dest, len, &r);
return (ok && (r == len));
}
static void about(HWND h) {
::MessageBox(h, L"Reads audio position information from Call of Duty: Modern Warfare 2 Special Ops(v1.0)", L"Mumble CoDMW2SO Plugin", MB_OK);
}
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) {
float viewHor, viewVer;
char state;
char specops;
for (int i=0;i<3;i++)
avatar_pos[i]=avatar_front[i]=avatar_top[i]=0.0f;
bool ok;
bool so;
/*
This plugin uses the following Variables:
Address Type Description
===================================
0x00782A64 float Z-Coordinate
0x00782A68 float X-Coordinate
0x00782A6C float Y-Coordinate
0x00782A34 float Horizontal view (degrees)
0x00782A30 float Vertical view (degrees)
0x01597682 byte Magical state value
*/
so = peekProc((BYTE *) 0x019703A0, &specops, 1); // Magical state value
if (! so)
return false;
if (specops != 2)
return false; // 2 value indicates you are playing Special Ops, 1 indicates SP, 0 indicates at three-way selection menu
ok = peekProc((BYTE *) 0x01B12BBB, &state, 1); // Magical state value
if (! ok)
return false;
// /*
// state value is:
// 0 while not in game
// 4 to 5 while playing
// This value is used for disabling pa for spectators
// or people not on a server.
// */
if (state == 0)
return true; // This results in all vectors beeing zero which tells mumble to ignore them.
ok = peekProc((BYTE *) 0x00782A64, avatar_pos+2, 4) && //Z
peekProc((BYTE *) 0x00782A68, avatar_pos, 4) && //X
peekProc((BYTE *) 0x00782A6C, avatar_pos+1, 4) && //Y
peekProc((BYTE *) 0x00782A34, &viewHor, 4) && //Hor
peekProc((BYTE *) 0x00782A30, &viewVer, 4); //Ver
if (! ok)
return false;
// Scale Coordinates
/*
Z-Value is increasing when heading north
decreasing when heading south
X-Value is increasing when heading west
decreasing when heading east
Y-Value is increasing when going up
decreasing when going down
40 units = 1 meter (not confirmed)
*/
for (int i=0;i<3;i++)
avatar_pos[i]/=40.0f; // Scale to meters
avatar_pos[0]*=(-1.0f); // Convert right to left handed
avatar_top[2] = -1; // Head movement is in front vector
// Calculate view unit vector
/*
Vertical view 0° when centered
85° when looking down
275° when looking up
Decreasing when looking up.
Horizontal is 0° when facing North
90° when facing West
180° when facing South
270° when facing East
Increasing when turning left.
*/
viewVer *= static_cast<float>(M_PI / 180.0f);
viewHor *= static_cast<float>(M_PI / 180.0f);
avatar_front[0] = -sin(viewHor) * cos(viewVer);
avatar_front[1] = -sin(viewVer);
avatar_front[2] = cos(viewHor) * cos(viewVer);
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];
}
return ok;
}
static int trylock() {
h = NULL;
DWORD pid=getProcess(L"iw4sp.exe");
if (!pid)
return false;
h=OpenProcess(PROCESS_VM_READ, false, pid);
if (!h)
return false;
float apos[3], afront[3], atop[3], cpos[3], cfront[3], ctop[3];
std::string context;
std::wstring identity;
if (fetch(apos, afront, atop, cpos, cfront, ctop, context, identity))
return true;
CloseHandle(h);
h = NULL;
return false;
}
static void unlock() {
if (h) {
CloseHandle(h);
h = NULL;
}
}
static const std::wstring longdesc() {
return std::wstring(L"Supports Call of Duty: Modern Warfare 2 Special Ops v1.0 only. No context or identity support yet.");
}
static std::wstring description(L"Call of Duty: Modern Warfare 2 Special Ops v1.0");
static std::wstring shortname(L"Call of Duty: Modern Warfare 2 Special Ops");
static MumblePlugin codmw2soplug = {
MUMBLE_PLUGIN_MAGIC,
description,
shortname,
about,
NULL,
trylock,
unlock,
longdesc,
fetch
};
extern "C" __declspec(dllexport) MumblePlugin *getMumblePlugin() {
return &codmw2soplug;
}
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