97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
// Copyright 2017 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include "InputCommon/ControllerEmu/ControlGroup/Tilt.h"
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#include <algorithm>
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#include <cmath>
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#include <memory>
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#include <string>
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#include "Common/Common.h"
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#include "InputCommon/ControlReference/ControlReference.h"
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#include "InputCommon/ControllerEmu/Control/Control.h"
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#include "InputCommon/ControllerEmu/Control/Input.h"
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namespace ControllerEmu
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{
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Tilt::Tilt(const std::string& name_) : ControlGroup(name_, GroupType::Tilt)
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{
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controls.emplace_back(std::make_unique<Input>("Forward"));
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controls.emplace_back(std::make_unique<Input>("Backward"));
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controls.emplace_back(std::make_unique<Input>("Left"));
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controls.emplace_back(std::make_unique<Input>("Right"));
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controls.emplace_back(std::make_unique<Input>(_trans("Modifier")));
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numeric_settings.emplace_back(std::make_unique<NumericSetting>(_trans("Dead Zone"), 0, 0, 50));
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numeric_settings.emplace_back(std::make_unique<NumericSetting>(_trans("Circle Stick"), 0));
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numeric_settings.emplace_back(std::make_unique<NumericSetting>(_trans("Angle"), 0.9, 0, 180));
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}
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void Tilt::GetState(ControlState* const x, ControlState* const y, const bool step)
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{
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// this is all a mess
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ControlState yy = controls[0]->control_ref->State() - controls[1]->control_ref->State();
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ControlState xx = controls[3]->control_ref->State() - controls[2]->control_ref->State();
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ControlState deadzone = numeric_settings[0]->GetValue();
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ControlState circle = numeric_settings[1]->GetValue();
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auto const angle = numeric_settings[2]->GetValue() / 1.8;
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ControlState m = controls[4]->control_ref->State();
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// deadzone / circle stick code
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// this section might be all wrong, but its working good enough, I think
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ControlState ang = atan2(yy, xx);
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ControlState ang_sin = sin(ang);
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ControlState ang_cos = cos(ang);
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// the amt a full square stick would have at current angle
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ControlState square_full =
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std::min(ang_sin ? 1 / fabs(ang_sin) : 2, ang_cos ? 1 / fabs(ang_cos) : 2);
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// the amt a full stick would have that was (user setting circular) at current angle
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// I think this is more like a pointed circle rather than a rounded square like it should be
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ControlState stick_full = (square_full * (1 - circle)) + (circle);
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ControlState dist = sqrt(xx * xx + yy * yy);
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// dead zone code
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dist = std::max(0.0, dist - deadzone * stick_full);
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dist /= (1 - deadzone);
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// circle stick code
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ControlState amt = dist / stick_full;
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dist += (square_full - 1) * amt * circle;
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if (m)
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dist *= 0.5;
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yy = std::max(-1.0, std::min(1.0, ang_sin * dist));
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xx = std::max(-1.0, std::min(1.0, ang_cos * dist));
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// this is kinda silly here
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// gui being open will make this happen 2x as fast, o well
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// silly
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if (step)
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{
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if (xx > m_tilt[0])
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m_tilt[0] = std::min(m_tilt[0] + 0.1, xx);
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else if (xx < m_tilt[0])
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m_tilt[0] = std::max(m_tilt[0] - 0.1, xx);
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if (yy > m_tilt[1])
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m_tilt[1] = std::min(m_tilt[1] + 0.1, yy);
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else if (yy < m_tilt[1])
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m_tilt[1] = std::max(m_tilt[1] - 0.1, yy);
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}
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*y = m_tilt[1] * angle;
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*x = m_tilt[0] * angle;
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}
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} // namespace ControllerEmu
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