Add ETQW plugin files

2 files changed, 239 insertions, 0 deletions

diff --git a/plugins/etqw/etqw.cpp b/plugins/etqw/etqw.cpp
new file mode 100644
index 000000000..6ced91d01
--- /dev/null
+++ b/plugins/etqw/etqw.cpp
@@ -0,0 +1,232 @@
+#define _USE_MATH_DEFINES
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <windows.h>
+#include <tlhelp32.h>
+#include <math.h>
+#include <string>
+#include <sstream>
+
+#include "../mumble_plugin.h"
+
+HANDLE h = NULL;
+
+using namespace std;
+
+BYTE *pos1ptr;
+BYTE *pos2ptr;
+BYTE *pos3ptr;
+BYTE *rot1ptr;
+BYTE *rot2ptr;
+
+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 DWORD peekProc(VOID *base) {
+	DWORD v = 0;
+	peekProc(base, reinterpret_cast<BYTE *>(&v), sizeof(DWORD));
+	return v;
+}
+
+static BYTE *peekProcPtr(VOID *base) {
+	DWORD v = peekProc(base);
+	return reinterpret_cast<BYTE *>(v);
+}
+
+static void about(HWND h) {
+	::MessageBox(h, L"Reads audio position information from Enemy Territory: Quake Wars (v1.50). IP:Port context support. Note that vehicle PA support is not present or may not function as expected", L"Mumble ETQW 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) {
+	char menustate;
+	char ccontext[128];
+	
+	float viewHor, viewVer;
+	for (int i=0;i<3;i++)
+		avatar_pos[i]=avatar_front[i]=avatar_top[i]=0.0f;
+
+	bool ok;
+
+	/*
+		This plugin uses the following Variables:
+
+			Address			Type	Description
+			===================================
+			0x013F79CC		float	Y-Coordinate
+			0x013E8CF4		float	X-Coordinate
+			0x013E8CF8		float	Z-Coordinate
+			0x013F9E20		float	Horizontal view
+			0x013F9E1C		float	Vertical view
+			0x013E8D18		byte	Magic value (32 ingame / 0 spectating)
+	*/
+	ok = peekProc((BYTE *) 0x00801BA4, &menustate, 1);
+	if (! ok)
+		return false;
+	if (menustate == 0)
+		return true;
+
+	ok = peekProc(pos1ptr, avatar_pos+1, 4) &&	//Y
+	     peekProc(pos2ptr, avatar_pos, 4) &&	//X
+	     peekProc(pos3ptr, avatar_pos+2, 4) && //Z
+	     peekProc(rot1ptr, &viewHor, 4) && //Hor
+	     peekProc(rot2ptr, &viewVer, 4) && //Ver
+		 peekProc((BYTE *) 0x0122E0B8, ccontext, 128);
+
+	if (! ok)
+		return false;
+
+	avatar_top[2] = -1; // Head movement is in front vector
+	
+	ccontext[127] = 0;
+	context = std::string(ccontext);
+	
+	if (context.find(':')==string::npos) 
+		context.append(":27733");
+
+	/*
+	   Z-Value is increasing when heading north
+				  decreasing when heading south
+	   X-Value is increasing when heading east
+				  decreasing when heading west
+	   Y-Value is increasing when going up
+				  decreasing when going down
+	   1 unit = 1 meter (not confirmed)
+	*/
+
+	// Calculate view unit vector
+	/*
+	   Vertical view 0 when centered
+				   -90 when looking up
+				   +90 when looking down
+	   Increasing when looking down.
+
+	   Horizontal is 90 when facing north
+					  0 when facing east
+					-90 when facing south
+					+/-180 when facing west
+	   Increasing when turning left.
+	*/
+	viewVer *= static_cast<float>(M_PI / 180.0f);
+	viewHor *= static_cast<float>(M_PI / 180.0f);
+
+	avatar_front[0] = cos(viewVer) * cos(viewHor);
+	avatar_front[1] = -sin(viewVer);
+	avatar_front[2] = cos(viewVer) * sin(viewHor);
+
+	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;
+	pos1ptr = pos2ptr = pos3ptr = rot1ptr = rot2ptr = NULL;
+	
+	DWORD pid=getProcess(L"etqw.exe");
+	if (!pid)
+		return false;
+	BYTE *mod=getModuleAddr(pid, L"gamex86.dll");
+	if (!mod)
+		return false;
+		
+	pos1ptr = mod + 0x74EABC;
+	pos2ptr = mod + 0x74EAB4;
+	pos3ptr = mod + 0x74EAB8;
+	rot1ptr = mod + 0x75F014;
+	rot2ptr = mod + 0x75D30C;
+
+	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 Enemy Territory: Quake Wars v1.50. No identity support yet.");
+}
+
+static std::wstring description(L"Enemy Territory: Quake Wars v1.50");
+static std::wstring shortname(L"Enemy Territory: Quake Wars");
+
+static MumblePlugin etqwplug = {
+	MUMBLE_PLUGIN_MAGIC,
+	description,
+	shortname,
+	about,
+	NULL,
+	trylock,
+	unlock,
+	longdesc,
+	fetch
+};
+
+extern "C" __declspec(dllexport) MumblePlugin *getMumblePlugin() {
+	return &etqwplug;
+}
diff --git a/plugins/etqw/etqw.pro b/plugins/etqw/etqw.pro
new file mode 100644
index 000000000..25a711560
--- /dev/null
+++ b/plugins/etqw/etqw.pro
@@ -0,0 +1,7 @@
+include(../plugins.pri)
+
+TARGET		= etqw
+SOURCES		= etqw.cpp
+LIBS		+= -luser32
+
+