// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <cstring>
#include <regex>
#include "common/fs/file.h"
#include "common/fs/fs_types.h"
#include "common/fs/path_util.h"
#include "common/logging/log.h"
#include "common/settings.h"
#include "input_common/tas/tas_input.h"
namespace TasInput {
constexpr std::array<std::pair<std::string_view, TasButton>, 20> text_to_tas_button = {
std::pair{"KEY_A", TasButton::BUTTON_A},
{"KEY_B", TasButton::BUTTON_B},
{"KEY_X", TasButton::BUTTON_X},
{"KEY_Y", TasButton::BUTTON_Y},
{"KEY_LSTICK", TasButton::STICK_L},
{"KEY_RSTICK", TasButton::STICK_R},
{"KEY_L", TasButton::TRIGGER_L},
{"KEY_R", TasButton::TRIGGER_R},
{"KEY_PLUS", TasButton::BUTTON_PLUS},
{"KEY_MINUS", TasButton::BUTTON_MINUS},
{"KEY_DLEFT", TasButton::BUTTON_LEFT},
{"KEY_DUP", TasButton::BUTTON_UP},
{"KEY_DRIGHT", TasButton::BUTTON_RIGHT},
{"KEY_DDOWN", TasButton::BUTTON_DOWN},
{"KEY_SL", TasButton::BUTTON_SL},
{"KEY_SR", TasButton::BUTTON_SR},
{"KEY_CAPTURE", TasButton::BUTTON_CAPTURE},
{"KEY_HOME", TasButton::BUTTON_HOME},
{"KEY_ZL", TasButton::TRIGGER_ZL},
{"KEY_ZR", TasButton::TRIGGER_ZR},
};
Tas::Tas() {
if (!Settings::values.tas_enable) {
return;
}
LoadTasFiles();
}
Tas::~Tas() = default;
void Tas::LoadTasFiles() {
script_length = 0;
for (size_t i = 0; i < commands.size(); i++) {
LoadTasFile(i);
if (commands[i].size() > script_length) {
script_length = commands[i].size();
}
}
}
void Tas::LoadTasFile(size_t player_index) {
if (!commands[player_index].empty()) {
commands[player_index].clear();
}
std::string file =
Common::FS::ReadStringFromFile(Common::FS::GetYuzuPath(Common::FS::YuzuPath::TASDir) /
fmt::format("script0-{}.txt", player_index + 1),
Common::FS::FileType::BinaryFile);
std::stringstream command_line(file);
std::string line;
int frame_no = 0;
while (std::getline(command_line, line, '\n')) {
if (line.empty()) {
continue;
}
LOG_DEBUG(Input, "Loading line: {}", line);
std::smatch m;
std::stringstream linestream(line);
std::string segment;
std::vector<std::string> seglist;
while (std::getline(linestream, segment, ' ')) {
seglist.push_back(segment);
}
if (seglist.size() < 4) {
continue;
}
while (frame_no < std::stoi(seglist.at(0))) {
commands[player_index].push_back({});
frame_no++;
}
TASCommand command = {
.buttons = ReadCommandButtons(seglist.at(1)),
.l_axis = ReadCommandAxis(seglist.at(2)),
.r_axis = ReadCommandAxis(seglist.at(3)),
};
commands[player_index].push_back(command);
frame_no++;
}
LOG_INFO(Input, "TAS file loaded! {} frames", frame_no);
}
void Tas::WriteTasFile(std::u8string file_name) {
std::string output_text;
for (size_t frame = 0; frame < record_commands.size(); frame++) {
if (!output_text.empty()) {
output_text += "\n";
}
const TASCommand& line = record_commands[frame];
output_text += std::to_string(frame) + " " + WriteCommandButtons(line.buttons) + " " +
WriteCommandAxis(line.l_axis) + " " + WriteCommandAxis(line.r_axis);
}
const auto bytes_written = Common::FS::WriteStringToFile(
Common::FS::GetYuzuPath(Common::FS::YuzuPath::TASDir) / file_name,
Common::FS::FileType::TextFile, output_text);
if (bytes_written == output_text.size()) {
LOG_INFO(Input, "TAS file written to file!");
} else {
LOG_ERROR(Input, "Writing the TAS-file has failed! {} / {} bytes written", bytes_written,
output_text.size());
}
}
std::pair<float, float> Tas::FlipAxisY(std::pair<float, float> old) {
auto [x, y] = old;
return {x, -y};
}
void Tas::RecordInput(u32 buttons, const std::array<std::pair<float, float>, 2>& axes) {
last_input = {buttons, FlipAxisY(axes[0]), FlipAxisY(axes[1])};
}
std::tuple<TasState, size_t, size_t> Tas::GetStatus() const {
TasState state;
if (is_recording) {
return {TasState::Recording, 0, record_commands.size()};
}
if (is_running) {
state = TasState::Running;
} else {
state = TasState::Stopped;
}
return {state, current_command, script_length};
}
std::string Tas::DebugButtons(u32 buttons) const {
return fmt::format("{{ {} }}", TasInput::Tas::ButtonsToString(buttons));
}
std::string Tas::DebugJoystick(float x, float y) const {
return fmt::format("[ {} , {} ]", std::to_string(x), std::to_string(y));
}
std::string Tas::DebugInput(const TasData& data) const {
return fmt::format("{{ {} , {} , {} }}", DebugButtons(data.buttons),
DebugJoystick(data.axis[0], data.axis[1]),
DebugJoystick(data.axis[2], data.axis[3]));
}
std::string Tas::DebugInputs(const std::array<TasData, PLAYER_NUMBER>& arr) const {
std::string returns = "[ ";
for (size_t i = 0; i < arr.size(); i++) {
returns += DebugInput(arr[i]);
if (i != arr.size() - 1) {
returns += " , ";
}
}
return returns + "]";
}
std::string Tas::ButtonsToString(u32 button) const {
std::string returns;
for (auto [text_button, tas_button] : text_to_tas_button) {
if ((button & static_cast<u32>(tas_button)) != 0)
returns += fmt::format(", {}", text_button.substr(4));
}
return returns.empty() ? "" : returns.substr(2);
}
void Tas::UpdateThread() {
if (!Settings::values.tas_enable) {
return;
}
if (is_recording) {
record_commands.push_back(last_input);
}
if (needs_reset) {
current_command = 0;
needs_reset = false;
LoadTasFiles();
LOG_DEBUG(Input, "tas_reset done");
}
if (is_running) {
if (current_command < script_length) {
LOG_DEBUG(Input, "Playing TAS {}/{}", current_command, script_length);
size_t frame = current_command++;
for (size_t i = 0; i < commands.size(); i++) {
if (frame < commands[i].size()) {
TASCommand command = commands[i][frame];
tas_data[i].buttons = command.buttons;
auto [l_axis_x, l_axis_y] = command.l_axis;
tas_data[i].axis[0] = l_axis_x;
tas_data[i].axis[1] = l_axis_y;
auto [r_axis_x, r_axis_y] = command.r_axis;
tas_data[i].axis[2] = r_axis_x;
tas_data[i].axis[3] = r_axis_y;
} else {
tas_data[i] = {};
}
}
} else {
is_running = Settings::values.tas_loop;
current_command = 0;
tas_data.fill({});
if (!is_running) {
SwapToStoredController();
}
}
} else {
tas_data.fill({});
}
LOG_DEBUG(Input, "TAS inputs: {}", DebugInputs(tas_data));
}
TasAnalog Tas::ReadCommandAxis(const std::string& line) const {
std::stringstream linestream(line);
std::string segment;
std::vector<std::string> seglist;
while (std::getline(linestream, segment, ';')) {
seglist.push_back(segment);
}
const float x = std::stof(seglist.at(0)) / 32767.f;
const float y = std::stof(seglist.at(1)) / 32767.f;
return {x, y};
}
u32 Tas::ReadCommandButtons(const std::string& data) const {
std::stringstream button_text(data);
std::string line;
u32 buttons = 0;
while (std::getline(button_text, line, ';')) {
for (auto [text, tas_button] : text_to_tas_button) {
if (text == line) {
buttons |= static_cast<u32>(tas_button);
break;
}
}
}
return buttons;
}
std::string Tas::WriteCommandAxis(TasAnalog data) const {
auto [x, y] = data;
std::string line;
line += std::to_string(static_cast<int>(x * 32767));
line += ";";
line += std::to_string(static_cast<int>(y * 32767));
return line;
}
std::string Tas::WriteCommandButtons(u32 data) const {
if (data == 0) {
return "NONE";
}
std::string line;
u32 index = 0;
while (data > 0) {
if ((data & 1) == 1) {
for (auto [text, tas_button] : text_to_tas_button) {
if (tas_button == static_cast<TasButton>(1 << index)) {
if (line.size() > 0) {
line += ";";
}
line += text;
break;
}
}
}
index++;
data >>= 1;
}
return line;
}
void Tas::StartStop() {
is_running = !is_running;
if (is_running) {
SwapToTasController();
} else {
SwapToStoredController();
}
}
void Tas::SwapToTasController() {
if (!Settings::values.tas_swap_controllers) {
return;
}
auto& players = Settings::values.players.GetValue();
for (std::size_t index = 0; index < players.size(); index++) {
auto& player = players[index];
player_mappings[index] = player;
// Only swap active controllers
if (!player.connected) {
continue;
}
auto tas_param = Common::ParamPackage{{"pad", static_cast<u8>(index)}};
auto button_mapping = GetButtonMappingForDevice(tas_param);
auto analog_mapping = GetAnalogMappingForDevice(tas_param);
auto& buttons = player.buttons;
auto& analogs = player.analogs;
for (std::size_t i = 0; i < buttons.size(); ++i) {
buttons[i] = button_mapping[static_cast<Settings::NativeButton::Values>(i)].Serialize();
}
for (std::size_t i = 0; i < analogs.size(); ++i) {
analogs[i] = analog_mapping[static_cast<Settings::NativeAnalog::Values>(i)].Serialize();
}
}
Settings::values.is_device_reload_pending.store(true);
}
void Tas::SwapToStoredController() {
if (!Settings::values.tas_swap_controllers) {
return;
}
auto& players = Settings::values.players.GetValue();
for (std::size_t index = 0; index < players.size(); index++) {
players[index] = player_mappings[index];
}
Settings::values.is_device_reload_pending.store(true);
}
void Tas::Reset() {
needs_reset = true;
}
bool Tas::Record() {
is_recording = !is_recording;
return is_recording;
}
void Tas::SaveRecording(bool overwrite_file) {
if (is_recording) {
return;
}
if (record_commands.empty()) {
return;
}
WriteTasFile(u8"record.txt");
if (overwrite_file) {
WriteTasFile(u8"script0-1.txt");
}
needs_reset = true;
record_commands.clear();
}
InputCommon::ButtonMapping Tas::GetButtonMappingForDevice(
const Common::ParamPackage& params) const {
// This list is missing ZL/ZR since those are not considered buttons.
// We will add those afterwards
// This list also excludes any button that can't be really mapped
static constexpr std::array<std::pair<Settings::NativeButton::Values, TasButton>, 20>
switch_to_tas_button = {
std::pair{Settings::NativeButton::A, TasButton::BUTTON_A},
{Settings::NativeButton::B, TasButton::BUTTON_B},
{Settings::NativeButton::X, TasButton::BUTTON_X},
{Settings::NativeButton::Y, TasButton::BUTTON_Y},
{Settings::NativeButton::LStick, TasButton::STICK_L},
{Settings::NativeButton::RStick, TasButton::STICK_R},
{Settings::NativeButton::L, TasButton::TRIGGER_L},
{Settings::NativeButton::R, TasButton::TRIGGER_R},
{Settings::NativeButton::Plus, TasButton::BUTTON_PLUS},
{Settings::NativeButton::Minus, TasButton::BUTTON_MINUS},
{Settings::NativeButton::DLeft, TasButton::BUTTON_LEFT},
{Settings::NativeButton::DUp, TasButton::BUTTON_UP},
{Settings::NativeButton::DRight, TasButton::BUTTON_RIGHT},
{Settings::NativeButton::DDown, TasButton::BUTTON_DOWN},
{Settings::NativeButton::SL, TasButton::BUTTON_SL},
{Settings::NativeButton::SR, TasButton::BUTTON_SR},
{Settings::NativeButton::Screenshot, TasButton::BUTTON_CAPTURE},
{Settings::NativeButton::Home, TasButton::BUTTON_HOME},
{Settings::NativeButton::ZL, TasButton::TRIGGER_ZL},
{Settings::NativeButton::ZR, TasButton::TRIGGER_ZR},
};
InputCommon::ButtonMapping mapping{};
for (const auto& [switch_button, tas_button] : switch_to_tas_button) {
Common::ParamPackage button_params({{"engine", "tas"}});
button_params.Set("pad", params.Get("pad", 0));
button_params.Set("button", static_cast<int>(tas_button));
mapping.insert_or_assign(switch_button, std::move(button_params));
}
return mapping;
}
InputCommon::AnalogMapping Tas::GetAnalogMappingForDevice(
const Common::ParamPackage& params) const {
InputCommon::AnalogMapping mapping = {};
Common::ParamPackage left_analog_params;
left_analog_params.Set("engine", "tas");
left_analog_params.Set("pad", params.Get("pad", 0));
left_analog_params.Set("axis_x", static_cast<int>(TasAxes::StickX));
left_analog_params.Set("axis_y", static_cast<int>(TasAxes::StickY));
mapping.insert_or_assign(Settings::NativeAnalog::LStick, std::move(left_analog_params));
Common::ParamPackage right_analog_params;
right_analog_params.Set("engine", "tas");
right_analog_params.Set("pad", params.Get("pad", 0));
right_analog_params.Set("axis_x", static_cast<int>(TasAxes::SubstickX));
right_analog_params.Set("axis_y", static_cast<int>(TasAxes::SubstickY));
mapping.insert_or_assign(Settings::NativeAnalog::RStick, std::move(right_analog_params));
return mapping;
}
const TasData& Tas::GetTasState(std::size_t pad) const {
return tas_data[pad];
}
} // namespace TasInput