citra/src/core/cheats/cheats.cpp
Ben b90ff739a0 Add CheatEngine and support for Gateway cheats (#4406)
* Add CheatEngine; Add support for Gateway cheats; Add Cheat UI

* fix a potential crash on some systems

* fix substr with negative length

* Add Joker to the NonOp comp handling

* Fixup JokerOp

* minor fixup in patchop; add todo for nested loops

* Add comment for PadState member variable in HID

* fix: stol to stoul in parsing cheat file

* fix misplaced parsing of values; fix patchop code

* add missing break

* Make read_func and write_func a template parameter
2018-11-16 18:01:10 -07:00

59 lines
1.8 KiB
C++

// Copyright 2018 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <functional>
#include <fmt/format.h>
#include "core/cheats/cheats.h"
#include "core/cheats/gateway_cheat.h"
#include "core/core.h"
#include "core/core_timing.h"
#include "core/hle/kernel/process.h"
namespace Cheats {
constexpr u64 run_interval_ticks = BASE_CLOCK_RATE_ARM11 / 60;
CheatEngine::CheatEngine(Core::System& system_) : system(system_) {
LoadCheatFile();
event = system.CoreTiming().RegisterEvent(
"CheatCore::run_event",
[this](u64 thread_id, s64 cycle_late) { RunCallback(thread_id, cycle_late); });
system.CoreTiming().ScheduleEvent(run_interval_ticks, event);
}
CheatEngine::~CheatEngine() {
system.CoreTiming().UnscheduleEvent(event, 0);
}
const std::vector<std::unique_ptr<CheatBase>>& CheatEngine::GetCheats() const {
return cheats_list;
}
void CheatEngine::LoadCheatFile() {
const std::string cheat_dir = FileUtil::GetUserPath(FileUtil::UserPath::CheatsDir);
const std::string filepath = fmt::format(
"{}{:016X}.txt", cheat_dir, system.Kernel().GetCurrentProcess()->codeset->program_id);
if (!FileUtil::IsDirectory(cheat_dir)) {
FileUtil::CreateDir(cheat_dir);
}
if (!FileUtil::Exists(filepath))
return;
auto gateway_cheats = GatewayCheat::LoadFile(filepath);
std::move(gateway_cheats.begin(), gateway_cheats.end(), std::back_inserter(cheats_list));
}
void CheatEngine::RunCallback([[maybe_unused]] u64 userdata, int cycles_late) {
for (auto& cheat : cheats_list) {
if (cheat->IsEnabled()) {
cheat->Execute(system);
}
}
system.CoreTiming().ScheduleEvent(run_interval_ticks - cycles_late, event);
}
} // namespace Cheats