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9bf24dc210
Supports the 1.0 version of Grand Theft Auto: San Andreas, the only one supported by multiplayer modifications. The camera's vectors are synced with the avatar's ones; in future we should locate the camera's CMatrix in the game's memory and retrieve the proper values. No context/identity support; in future we should at least add the context (e.g. server IP address + port) for Multi Theft Auto and San Andreas: MultiPlayer.
117 lines
2.8 KiB
C++
117 lines
2.8 KiB
C++
// Copyright 2019 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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#include "../mumble_plugin_main.h"
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struct Matrix {
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float right[4];
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float front[4];
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float top[4];
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float position[3];
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};
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static int fetch(float *avatarPosition, float *avatarFront, float *avatarTop, float *cameraPosition, float *cameraFront, float *cameraTop, std::string &, std::wstring &) {
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for (uint8_t i = 0; i < 3; ++i) {
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avatarPosition[i] = avatarFront[i] = avatarTop[i] = 0.0f;
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}
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const auto playerPed = peekProcPtr(0xB7CD98);
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if (!playerPed) {
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return false;
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}
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const bool isInCar = (peekProc<uint8_t>(playerPed + 0x46C) == 1);
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const auto playerCar = peekProcPtr(playerPed + 0x58C);
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const auto matrixAddress = peekProcPtr((isInCar && playerCar ? playerCar : playerPed) + 0x14);
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if (!matrixAddress) {
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return false;
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}
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const auto matrix = peekProc<Matrix>(matrixAddress);
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/*
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Mumble | Game
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X | X
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Y | Z
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Z | Y
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*/
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avatarPosition[0] = matrix.position[0];
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avatarPosition[1] = matrix.position[2];
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avatarPosition[2] = matrix.position[1];
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avatarFront[0] = matrix.front[0];
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avatarFront[1] = matrix.front[2];
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avatarFront[2] = matrix.front[1];
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avatarTop[0] = matrix.top[0];
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avatarTop[1] = matrix.top[2];
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avatarTop[2] = matrix.top[1];
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for (uint8_t i = 0; i < 3; ++i) {
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cameraPosition[i] = avatarPosition[i];
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cameraFront[i] = avatarFront[i];
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cameraTop[i] = avatarTop[i];
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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"gta_sa.exe")) {
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return false;
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}
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float avatarPosition[3], avatarFront[3], avatarTop[3];
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float cameraPosition[3], cameraFront[3], cameraTop[3];
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std::string context;
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std::wstring identity;
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if (fetch(avatarPosition, avatarFront, avatarTop, cameraPosition, cameraFront, cameraTop, context, identity)) {
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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 Grand Theft Auto: San Andreas version 1.0.");
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}
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static std::wstring description(L"Grand Theft Auto: San Andreas (v1.0)");
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static std::wstring shortName(L"Grand Theft Auto: San Andreas");
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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 gtasaPlug = {
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MUMBLE_PLUGIN_MAGIC,
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description,
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shortName,
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NULL,
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NULL,
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tryLock1,
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generic_unlock,
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longDesc,
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fetch
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};
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static MumblePlugin2 gtasaPlug2 = {
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MUMBLE_PLUGIN_MAGIC_2,
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MUMBLE_PLUGIN_VERSION,
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tryLock
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};
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extern "C" MUMBLE_PLUGIN_EXPORT MumblePlugin *getMumblePlugin() {
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return >asaPlug;
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}
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extern "C" MUMBLE_PLUGIN_EXPORT MumblePlugin2 *getMumblePlugin2() {
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return >asaPlug2;
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}
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