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tas_input: std::move strings into vector

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While we're in the same area, we can also avoid performing std::stoi in
a loop when it only needs to be performed once.
This commit is contained in:
Lioncash 2021-12-13 11:07:26 -05:00
parent a515ede2af
commit 26ef76213c
1 changed files with 24 additions and 21 deletions
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41
src/input_common/drivers/tas_input.cpp
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@ -93,27 +93,29 @@ void Tas::LoadTasFile(size_t player_index, size_t file_index) {
continue; continue;
} }
std::istringstream linestream(line); std::vector<std::string> seg_list;
{
std::istringstream line_stream(line);
std::string segment; std::string segment;
std::vector<std::string> seglist; while (std::getline(line_stream, segment, ' ')) {
seg_list.push_back(std::move(segment));
while (std::getline(linestream, segment, ' ')) { }
seglist.push_back(segment);
} }
if (seglist.size() < 4) { if (seg_list.size() < 4) {
continue; continue;
} }
while (frame_no < std::stoi(seglist.at(0))) { const auto num_frames = std::stoi(seg_list[0]);
commands[player_index].push_back({}); while (frame_no < num_frames) {
commands[player_index].emplace_back();
frame_no++; frame_no++;
} }
TASCommand command = { TASCommand command = {
.buttons = ReadCommandButtons(seglist.at(1)), .buttons = ReadCommandButtons(seg_list[1]),
.l_axis = ReadCommandAxis(seglist.at(2)), .l_axis = ReadCommandAxis(seg_list[2]),
.r_axis = ReadCommandAxis(seglist.at(3)), .r_axis = ReadCommandAxis(seg_list[3]),
}; };
commands[player_index].push_back(command); commands[player_index].push_back(command);
frame_no++; frame_no++;
@ -223,22 +225,23 @@ void Tas::ClearInput() {
} }
TasAnalog Tas::ReadCommandAxis(const std::string& line) const { TasAnalog Tas::ReadCommandAxis(const std::string& line) const {
std::stringstream linestream(line); std::vector<std::string> seg_list;
{
std::istringstream line_stream(line);
std::string segment; std::string segment;
std::vector<std::string> seglist; while (std::getline(line_stream, segment, ';')) {
seg_list.push_back(std::move(segment));
while (std::getline(linestream, segment, ';')) { }
seglist.push_back(segment);
} }
const float x = std::stof(seglist.at(0)) / 32767.0f; const float x = std::stof(seg_list.at(0)) / 32767.0f;
const float y = std::stof(seglist.at(1)) / 32767.0f; const float y = std::stof(seg_list.at(1)) / 32767.0f;
return {x, y}; return {x, y};
} }
u64 Tas::ReadCommandButtons(const std::string& line) const { u64 Tas::ReadCommandButtons(const std::string& line) const {
std::stringstream button_text(line); std::istringstream button_text(line);
std::string button_line; std::string button_line;
u64 buttons = 0; u64 buttons = 0;
while (std::getline(button_text, button_line, ';')) { while (std::getline(button_text, button_line, ';')) {