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// Copyright 2017 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "InputCommon/ControllerEmu/ControlGroup/AnalogStick.h"
#include <algorithm>
#include <cmath>
#include <memory>
#include "Common/Common.h"
#include "InputCommon/ControlReference/ControlReference.h"
#include "InputCommon/ControllerEmu/Control/Control.h"
#include "InputCommon/ControllerEmu/Control/Input.h"
#include "InputCommon/ControllerEmu/ControllerEmu.h"
#include "InputCommon/ControllerEmu/Setting/NumericSetting.h"
namespace ControllerEmu
{
AnalogStick::AnalogStick(const char* const name_, ControlState default_radius)
: AnalogStick(name_, name_, default_radius)
{
}
AnalogStick::AnalogStick(const char* const name_, const char* const ui_name_,
ControlState default_radius)
: ControlGroup(name_, ui_name_, GroupType::Stick)
{
for (auto& named_direction : named_directions)
controls.emplace_back(std::make_unique<Input>(Translate, named_direction));
controls.emplace_back(std::make_unique<Input>(Translate, _trans("Modifier")));
numeric_settings.emplace_back(
std::make_unique<NumericSetting>(_trans("Radius"), default_radius, 0, 100));
numeric_settings.emplace_back(std::make_unique<NumericSetting>(_trans("Dead Zone"), 0, 0, 50));
}
AnalogStick::StateData AnalogStick::GetState()
{
ControlState y = controls[0]->control_ref->State() - controls[1]->control_ref->State();
ControlState x = controls[3]->control_ref->State() - controls[2]->control_ref->State();
const ControlState radius = numeric_settings[SETTING_RADIUS]->GetValue();
const ControlState deadzone = numeric_settings[SETTING_DEADZONE]->GetValue();
const ControlState m = controls[4]->control_ref->State();
const ControlState ang = atan2(y, x);
const ControlState ang_sin = sin(ang);
const ControlState ang_cos = cos(ang);
ControlState dist = sqrt(x * x + y * y);
// dead zone code
dist = std::max(0.0, dist - deadzone);
dist /= (1 - deadzone);
// radius
dist *= radius;
// The modifier halves the distance by 50%, which is useful
// for keyboard controls.
if (m)
dist *= 0.5;
y = std::max(-1.0, std::min(1.0, ang_sin * dist));
x = std::max(-1.0, std::min(1.0, ang_cos * dist));
return {x, y};
}
} // namespace ControllerEmu
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