214 lines
7.6 KiB
C++
214 lines
7.6 KiB
C++
// Copyright 2013-2023 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) 2013, Steve Hill <github@cheesy.sackheads.org>
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Copyright (C) 2013, Gabriel Risterucci <cleyfaye@gmail.com>
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Copyright (C) 2005-2010, Thorvald Natvig <thorvald@natvig.com>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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- Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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- Neither the name of the Mumble Developers nor the names of its
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contributors may be used to endorse or promote products derived from this
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software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define MUMBLE_ALLOW_DEPRECATED_LEGACY_PLUGIN_API
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#include "mumble_legacy_plugin.h"
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#include "mumble_positional_audio_main.h"
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#include <algorithm>
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procptr_t vects_ptr;
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procptr_t state_ptr;
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procptr_t character_name_ptr_loc;
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static int fetch(float *avatar_pos, float *avatar_front, float *avatar_top, float *camera_pos, float *camera_front,
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float *camera_top, std::string &, std::wstring &identity) {
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// Zero out the structures
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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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bool ok;
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char state;
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// State 1 == in-game, 0 == in-menu
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ok = peekProc(state_ptr, state);
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if (!ok)
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return false;
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if (state == 0)
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return true; // This results in all vectors beeing zero which tells Mumble to ignore them.
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struct {
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float front[3];
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float top[3];
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float position[3];
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} game_vects;
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ok = peekProc(vects_ptr, game_vects);
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if (!ok)
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return false;
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// Copy game vectors into return values
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for (int i = 0; i < 3; i++) {
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camera_pos[i] = avatar_pos[i] = game_vects.position[i] / 100.0f; // Scale to meters
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camera_front[i] = avatar_front[i] = game_vects.front[i];
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camera_top[i] = avatar_top[i] = game_vects.top[i];
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}
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// Extract the character name
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procptr_t ptr1 = peekProcPtr(character_name_ptr_loc);
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procptr_t ptr2 = peekProcPtr(ptr1 + 0xC);
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procptr_t character_name_ptr = ptr2 + 0x80;
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char character_name[16]; // The game limits us to 15 char names
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ok = peekProc(character_name_ptr, character_name);
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if (ok) {
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// character_name is zero terminated, but using strnlen for double-plus safety
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identity.assign(character_name, character_name + strnlen(character_name, sizeof(character_name)));
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}
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return true;
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}
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static int trylock(const std::multimap< std::wstring, unsigned long long int > &pids) {
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if (!initialize(pids, L"Borderlands2.exe")) {
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return false;
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}
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unsigned char detected_version[32];
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// Note for further versions:
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// The "version" string above change. However, it looks like it will always start
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// with "WILLOW2-". Everything after this can change between versions.
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// Position vectors are read as triplet (X,Y,Z). The tree triplet are in this order:
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// front, top, position.
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// When entering the game, in Sanctuary (after liftoff), with the character Zero,
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// the reading are the following (rounded):
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// front.X = 0
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// front.Y = 0
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// front.Z = 1
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// top.X = 0
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// top.Y = 1
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// top.Z = 0
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// pos.X = -8109
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// pos.Y = 3794
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// pos.Z = 2930
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// The "state" ptr is just a value that reliably alternate between 0 (in main menu)
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// and 1 (not in main menu). There is a lot of value that keep reliably changing even
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// across restart, change of characters...
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// Note that I couldn't find an address that would do this reliably with the game "pause"
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// menu, only the main menu (when you initially start the game, or completely exit your
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// current game)
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// VERSION_EQ safely checks whether the content of `buf'
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// (a buffer in the form of a C-style array of unsigned char)
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// contains the byte-level content of the string literal `strlit'.
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//
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// The NUL terminator of the string literal is not considered in
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// this equality check.
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#define VERSION_EQ(buf, strlit) memcmp(buf, strlit, std::min(sizeof(buf), sizeof(strlit) - 1)) == 0
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// 1.3.1
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if (peekProc(pModule + 0x1E6D048, detected_version) && VERSION_EQ(detected_version, "WILLOW2-PCSAGE-28-CL697606")) {
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vects_ptr = pModule + 0x1E792B0;
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state_ptr = pModule + 0x1E79BC8;
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character_name_ptr_loc = pModule + 0x1E7302C;
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}
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// 1.4.0
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else if (peekProc(pModule + 0x1E8D1D8, detected_version)
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&& VERSION_EQ(detected_version, "WILLOW2-PCSAGE-77-CL711033")) {
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vects_ptr = pModule + 0x1E993F0;
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state_ptr = pModule + 0x1E99D08;
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character_name_ptr_loc = pModule + 0x1E93194;
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}
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// 1.5.0
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else if (peekProc(pModule + 0x01E9F338, detected_version)
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&& VERSION_EQ(detected_version, "WILLOW2-PCLILAC-60-CL721220")) {
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vects_ptr = pModule + 0x1EAB650;
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state_ptr = pModule + 0x1EABF68;
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character_name_ptr_loc = pModule + 0x01EA5384;
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}
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// 1.7.0
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else if (peekProc(pModule + 0x01ED53A8, detected_version)
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&& VERSION_EQ(detected_version, "WILLOW2-PCALLIUM-55-CL770068")) {
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vects_ptr = pModule + 0x1EE18E0;
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state_ptr = pModule + 0x1EE21F8;
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character_name_ptr_loc = pModule + 0x01EDB5B4;
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}
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// 1.8.3
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else if (peekProc(pModule + 0x1EE63C8, detected_version)
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&& VERSION_EQ(detected_version, "WILLOW2-PCCHINA-29-CL827556")) {
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vects_ptr = pModule + 0x1EF2930;
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state_ptr = pModule + 0x1EF3248;
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character_name_ptr_loc = pModule + 0x01EEC5D4;
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} else {
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generic_unlock();
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return false;
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}
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// Check if we can get meaningful data from it
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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::wstring sidentity;
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std::string scontext;
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if (fetch(apos, afront, atop, cpos, cfront, ctop, scontext, sidentity)) {
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return true;
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} else {
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generic_unlock();
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return false;
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}
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}
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static const std::wstring longdesc() {
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return std::wstring(L"Supports Borderlands 2. No context support yet.");
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}
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static std::wstring description(L"Borderlands 2 (v1.8.3)");
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static std::wstring shortname(L"Borderlands 2");
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static int trylock1() {
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return trylock(std::multimap< std::wstring, unsigned long long int >());
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}
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static MumblePlugin bl2plug = { MUMBLE_PLUGIN_MAGIC, description, shortname, nullptr, nullptr, trylock1,
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generic_unlock, longdesc, fetch };
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static MumblePlugin2 bl2plug2 = { MUMBLE_PLUGIN_MAGIC_2, MUMBLE_PLUGIN_VERSION, trylock };
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extern "C" MUMBLE_PLUGIN_EXPORT MumblePlugin *getMumblePlugin() {
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return &bl2plug;
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}
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extern "C" MUMBLE_PLUGIN_EXPORT MumblePlugin2 *getMumblePlugin2() {
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return &bl2plug2;
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}
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