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Add ability to reshape analog sticks from square/circle to octagon and make the analog stick mapping indicator pretty.

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This commit is contained in:
Jordan Woyak 2018-12-18 20:06:16 -06:00
parent bfb9b1aca5
commit ceb28a2302
18 changed files with 331 additions and 144 deletions
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3
Source/Core/Common/MathUtil.h
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@ -17,6 +17,9 @@
namespace MathUtil
{
constexpr double TAU = 6.2831853071795865;
constexpr double PI = TAU / 2;
template <class T>
constexpr T Clamp(const T val, const T& min, const T& max)
{

15
Source/Core/Core/HW/GCPadEmu.cpp
View File

@ -63,10 +63,14 @@ GCPad::GCPad(const unsigned int index) : m_index(index)
}
// sticks
groups.emplace_back(m_main_stick = new ControllerEmu::AnalogStick(
"Main Stick", _trans("Control Stick"), DEFAULT_PAD_STICK_RADIUS));
groups.emplace_back(m_c_stick = new ControllerEmu::AnalogStick("C-Stick", _trans("C Stick"),
DEFAULT_PAD_STICK_RADIUS));
constexpr auto main_gate_radius =
ControlState(MAIN_STICK_GATE_RADIUS) / GCPadStatus::MAIN_STICK_RADIUS;
groups.emplace_back(m_main_stick = new ControllerEmu::OctagonAnalogStick(
"Main Stick", _trans("Control Stick"), main_gate_radius));
constexpr auto c_gate_radius = ControlState(C_STICK_GATE_RADIUS) / GCPadStatus::MAIN_STICK_RADIUS;
groups.emplace_back(m_c_stick = new ControllerEmu::OctagonAnalogStick(
"C-Stick", _trans("C Stick"), c_gate_radius));
// triggers
groups.emplace_back(m_triggers = new ControllerEmu::MixedTriggers(_trans("Triggers")));
@ -226,7 +230,8 @@ void GCPad::LoadDefaults(const ControllerInterface& ciface)
m_main_stick->SetControlExpression(4, "LSHIFT"); // Modifier
#elif __APPLE__
m_c_stick->SetControlExpression(4, "Left Control"); // Modifier
// Modifier
m_c_stick->SetControlExpression(4, "Left Control");
// Control Stick
m_main_stick->SetControlExpression(0, "Up Arrow"); // Up

8
Source/Core/Core/HW/GCPadEmu.h
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@ -16,7 +16,7 @@ namespace ControllerEmu
class AnalogStick;
class Buttons;
class MixedTriggers;
}
} // namespace ControllerEmu
enum class PadGroup
{
@ -45,6 +45,9 @@ public:
void LoadDefaults(const ControllerInterface& ciface) override;
static const u8 MAIN_STICK_GATE_RADIUS = 87;
static const u8 C_STICK_GATE_RADIUS = 74;
private:
ControllerEmu::Buttons* m_buttons;
ControllerEmu::AnalogStick* m_main_stick;
@ -57,7 +60,4 @@ private:
ControllerEmu::BooleanSetting* m_always_connected;
const unsigned int m_index;
// Default analog stick radius for GameCube controllers.
static constexpr ControlState DEFAULT_PAD_STICK_RADIUS = 1.0;
};

3
Source/Core/Core/HW/WiimoteEmu/Attachment/Attachment.h
View File

@ -25,9 +25,6 @@ public:
std::string GetName() const override;
protected:
// Default radius for attachment analog sticks.
static constexpr ControlState DEFAULT_ATTACHMENT_STICK_RADIUS = 1.0;
std::array<u8, 6> m_id{};
std::array<u8, 0x10> m_calibration{};

9
Source/Core/Core/HW/WiimoteEmu/Attachment/Classic.cpp
View File

@ -83,10 +83,11 @@ Classic::Classic(ExtensionReg& reg) : Attachment(_trans("Classic"), reg)
}
// sticks
groups.emplace_back(m_left_stick = new ControllerEmu::AnalogStick(
_trans("Left Stick"), DEFAULT_ATTACHMENT_STICK_RADIUS));
groups.emplace_back(m_right_stick = new ControllerEmu::AnalogStick(
_trans("Right Stick"), DEFAULT_ATTACHMENT_STICK_RADIUS));
constexpr auto gate_radius = ControlState(STICK_GATE_RADIUS) / LEFT_STICK_RADIUS;
groups.emplace_back(m_left_stick =
new ControllerEmu::OctagonAnalogStick(_trans("Left Stick"), gate_radius));
groups.emplace_back(
m_right_stick = new ControllerEmu::OctagonAnalogStick(_trans("Right Stick"), gate_radius));
// triggers
groups.emplace_back(m_triggers = new ControllerEmu::MixedTriggers(_trans("Triggers")));

2
Source/Core/Core/HW/WiimoteEmu/Attachment/Classic.h
View File

@ -68,6 +68,8 @@ public:
RIGHT_TRIGGER_RANGE = 0x1F,
};
static const u8 STICK_GATE_RADIUS = 0x16;
private:
ControllerEmu::Buttons* m_buttons;
ControllerEmu::MixedTriggers* m_triggers;

11
Source/Core/Core/HW/WiimoteEmu/Attachment/Drums.cpp
View File

@ -54,8 +54,9 @@ Drums::Drums(ExtensionReg& reg) : Attachment(_trans("Drums"), reg)
}
// stick
groups.emplace_back(
m_stick = new ControllerEmu::AnalogStick(_trans("Stick"), DEFAULT_ATTACHMENT_STICK_RADIUS));
constexpr auto gate_radius = ControlState(STICK_GATE_RADIUS) / STICK_RADIUS;
groups.emplace_back(m_stick =
new ControllerEmu::OctagonAnalogStick(_trans("Stick"), gate_radius));
// buttons
groups.emplace_back(m_buttons = new ControllerEmu::Buttons(_trans("Buttons")));
@ -76,8 +77,8 @@ void Drums::GetState(u8* const data)
{
const ControllerEmu::AnalogStick::StateData stick_state = m_stick->GetState();
drum_data.sx = static_cast<u8>((stick_state.x * 0x1F) + 0x20);
drum_data.sy = static_cast<u8>((stick_state.y * 0x1F) + 0x20);
drum_data.sx = static_cast<u8>((stick_state.x * STICK_RADIUS) + STICK_CENTER);
drum_data.sy = static_cast<u8>((stick_state.y * STICK_RADIUS) + STICK_CENTER);
}
// TODO: softness maybe
@ -119,4 +120,4 @@ ControllerEmu::ControlGroup* Drums::GetGroup(DrumsGroup group)
return nullptr;
}
}
}
} // namespace WiimoteEmu

6
Source/Core/Core/HW/WiimoteEmu/Attachment/Drums.h
View File

@ -40,6 +40,12 @@ public:
PAD_ORANGE = 0x8000,
};
static const u8 STICK_CENTER = 0x20;
static const u8 STICK_RADIUS = 0x1f;
// TODO: Test real hardware. Is this accurate?
static const u8 STICK_GATE_RADIUS = 0x16;
private:
ControllerEmu::Buttons* m_buttons;
ControllerEmu::Buttons* m_pads;

11
Source/Core/Core/HW/WiimoteEmu/Attachment/Guitar.cpp
View File

@ -83,8 +83,9 @@ Guitar::Guitar(ExtensionReg& reg) : Attachment(_trans("Guitar"), reg)
m_buttons->controls.emplace_back(new ControllerEmu::Input(ControllerEmu::DoNotTranslate, "+"));
// stick
groups.emplace_back(
m_stick = new ControllerEmu::AnalogStick(_trans("Stick"), DEFAULT_ATTACHMENT_STICK_RADIUS));
constexpr auto gate_radius = ControlState(STICK_GATE_RADIUS) / STICK_RADIUS;
groups.emplace_back(m_stick =
new ControllerEmu::OctagonAnalogStick(_trans("Stick"), gate_radius));
// whammy
groups.emplace_back(m_whammy = new ControllerEmu::Triggers(_trans("Whammy")));
@ -108,8 +109,8 @@ void Guitar::GetState(u8* const data)
{
const ControllerEmu::AnalogStick::StateData stick_state = m_stick->GetState();
guitar_data.sx = static_cast<u8>((stick_state.x * 0x1F) + 0x20);
guitar_data.sy = static_cast<u8>((stick_state.y * 0x1F) + 0x20);
guitar_data.sx = static_cast<u8>((stick_state.x * STICK_RADIUS) + STICK_CENTER);
guitar_data.sy = static_cast<u8>((stick_state.y * STICK_RADIUS) + STICK_CENTER);
}
// slider bar
@ -174,4 +175,4 @@ ControllerEmu::ControlGroup* Guitar::GetGroup(GuitarGroup group)
return nullptr;
}
}
}
} // namespace WiimoteEmu

6
Source/Core/Core/HW/WiimoteEmu/Attachment/Guitar.h
View File

@ -43,6 +43,12 @@ public:
FRET_ORANGE = 0x8000,
};
static const u8 STICK_CENTER = 0x20;
static const u8 STICK_RADIUS = 0x1f;
// TODO: Test real hardware. Is this accurate?
static const u8 STICK_GATE_RADIUS = 0x16;
private:
ControllerEmu::Buttons* m_buttons;
ControllerEmu::Buttons* m_frets;

5
Source/Core/Core/HW/WiimoteEmu/Attachment/Nunchuk.cpp
View File

@ -38,8 +38,9 @@ Nunchuk::Nunchuk(ExtensionReg& reg) : Attachment(_trans("Nunchuk"), reg)
m_buttons->controls.emplace_back(new ControllerEmu::Input(ControllerEmu::DoNotTranslate, "Z"));
// stick
groups.emplace_back(
m_stick = new ControllerEmu::AnalogStick(_trans("Stick"), DEFAULT_ATTACHMENT_STICK_RADIUS));
constexpr auto gate_radius = ControlState(STICK_GATE_RADIUS) / STICK_RADIUS;
groups.emplace_back(m_stick =
new ControllerEmu::OctagonAnalogStick(_trans("Stick"), gate_radius));
// swing
groups.emplace_back(m_swing = new ControllerEmu::Force(_trans("Swing")));

1
Source/Core/Core/HW/WiimoteEmu/Attachment/Nunchuk.h
View File

@ -48,6 +48,7 @@ public:
{
STICK_CENTER = 0x80,
STICK_RADIUS = 0x7F,
STICK_GATE_RADIUS = 0x52,
};
void LoadDefaults(const ControllerInterface& ciface) override;

11
Source/Core/Core/HW/WiimoteEmu/Attachment/Turntable.cpp
View File

@ -69,8 +69,9 @@ Turntable::Turntable(ExtensionReg& reg) : Attachment(_trans("Turntable"), reg)
new ControllerEmu::Slider("Table Right", _trans("Right Table")));
// stick
groups.emplace_back(
m_stick = new ControllerEmu::AnalogStick(_trans("Stick"), DEFAULT_ATTACHMENT_STICK_RADIUS));
constexpr auto gate_radius = ControlState(STICK_GATE_RADIUS) / STICK_RADIUS;
groups.emplace_back(m_stick =
new ControllerEmu::OctagonAnalogStick(_trans("Stick"), gate_radius));
// effect dial
groups.emplace_back(m_effect_dial = new ControllerEmu::Triggers(_trans("Effect")));
@ -92,8 +93,8 @@ void Turntable::GetState(u8* const data)
{
const ControllerEmu::AnalogStick::StateData stick_state = m_stick->GetState();
tt_data.sx = static_cast<u8>((stick_state.x * 0x1F) + 0x20);
tt_data.sy = static_cast<u8>((stick_state.y * 0x1F) + 0x20);
tt_data.sx = static_cast<u8>((stick_state.x * STICK_RADIUS) + STICK_CENTER);
tt_data.sy = static_cast<u8>((stick_state.y * STICK_RADIUS) + STICK_CENTER);
}
// left table
@ -170,4 +171,4 @@ ControllerEmu::ControlGroup* Turntable::GetGroup(TurntableGroup group)
return nullptr;
}
}
}
} // namespace WiimoteEmu

6
Source/Core/Core/HW/WiimoteEmu/Attachment/Turntable.h
View File

@ -45,6 +45,12 @@ public:
BUTTON_PLUS = 0x04,
};
static const u8 STICK_CENTER = 0x20;
static const u8 STICK_RADIUS = 0x1f;
// TODO: Test real hardware. Is this accurate?
static const u8 STICK_GATE_RADIUS = 0x16;
private:
ControllerEmu::Buttons* m_buttons;
ControllerEmu::AnalogStick* m_stick;

151
Source/Core/DolphinQt/Config/Mapping/MappingIndicator.cpp
View File

@ -10,9 +10,11 @@
#include <QPainter>
#include <QTimer>
#include "Common/MathUtil.h"
#include "InputCommon/ControlReference/ControlReference.h"
#include "InputCommon/ControllerEmu/Control/Control.h"
#include "InputCommon/ControllerEmu/ControlGroup/ControlGroup.h"
#include "InputCommon/ControllerEmu/ControlGroup/AnalogStick.h"
#include "InputCommon/ControllerEmu/Setting/NumericSetting.h"
#include "InputCommon/ControllerInterface/Device.h"
@ -28,7 +30,7 @@ MappingIndicator::MappingIndicator(ControllerEmu::ControlGroup* group) : m_group
BindCursorControls(false);
break;
case ControllerEmu::GroupType::Stick:
BindStickControls();
// Nothing needed:
break;
case ControllerEmu::GroupType::Tilt:
BindCursorControls(true);
@ -68,18 +70,6 @@ void MappingIndicator::BindCursorControls(bool tilt)
}
}
void MappingIndicator::BindStickControls()
{
m_stick_up = m_group->controls[0]->control_ref.get();
m_stick_down = m_group->controls[1]->control_ref.get();
m_stick_left = m_group->controls[2]->control_ref.get();
m_stick_right = m_group->controls[3]->control_ref.get();
m_stick_modifier = m_group->controls[4]->control_ref.get();
m_stick_radius = m_group->numeric_settings[0].get();
m_stick_deadzone = m_group->numeric_settings[1].get();
}
void MappingIndicator::BindMixedTriggersControls()
{
m_mixed_triggers_l_button = m_group->controls[0]->control_ref.get();
@ -144,83 +134,92 @@ void MappingIndicator::DrawCursor(bool tilt)
p.fillRect(curx, cury, 8, 8, Qt::red);
}
// Constructs a polygon by querying a radius at varying angles:
template <typename F>
QPolygonF GetPolygonFromRadiusGetter(F&& radius_getter, double scale)
{
// 24 is a multiple of 8 (octagon) and enough points to be visibly pleasing:
constexpr int shape_point_count = 24;
QPolygonF shape{shape_point_count};
int p = 0;
for (auto& point : shape)
{
const double angle = MathUtil::TAU * p / shape.size();
const double radius = radius_getter(angle) * scale;
point = {std::cos(angle) * radius, std::sin(angle) * radius};
++p;
}
return shape;
}
void MappingIndicator::DrawStick()
{
float centerx = width() / 2., centery = height() / 2.;
// Make the c-stick yellow:
const bool is_c_stick = m_group->name == "C-Stick";
const QColor gate_color = is_c_stick ? Qt::yellow : Qt::lightGray;
bool c_stick = m_group->name == "C-Stick";
bool classic_controller = m_group->name == "Left Stick" || m_group->name == "Right Stick";
auto& stick = *static_cast<ControllerEmu::AnalogStick*>(m_group);
float ratio = 1;
// TODO: This SetControllerStateNeeded interface leaks input into the game
// We should probably hold the mutex for UI updates.
Settings::Instance().SetControllerStateNeeded(true);
const auto raw_coord = stick.GetState(false);
const auto adj_coord = stick.GetState(true);
Settings::Instance().SetControllerStateNeeded(false);
if (c_stick)
ratio = 1.;
else if (classic_controller)
ratio = 0.9f;
// Bounding box size:
const double scale = height() / 2.5;
// Polled values
float mod = PollControlState(m_stick_modifier) ? 0.5 : 1;
float radius = m_stick_radius->GetValue();
float curx = -PollControlState(m_stick_left) + PollControlState(m_stick_right),
cury = -PollControlState(m_stick_up) + PollControlState(m_stick_down);
// The maximum deadzone value covers 50% of the stick area
float deadzone = m_stick_deadzone->GetValue() / 2.;
// Size parameters
float max_size = (height() / 2.5) / ratio;
float stick_size = (height() / 3.) / ratio;
// Emulated cursor position
float virt_curx, virt_cury;
if (std::abs(curx) < deadzone && std::abs(cury) < deadzone)
{
virt_curx = virt_cury = 0;
}
else
{
virt_curx = curx * mod;
virt_cury = cury * mod;
}
// Coordinates for an octagon
std::array<QPointF, 8> radius_octagon = {{
QPointF(centerx, centery + stick_size), // Bottom
QPointF(centerx + stick_size / sqrt(2), centery + stick_size / sqrt(2)), // Bottom Right
QPointF(centerx + stick_size, centery), // Right
QPointF(centerx + stick_size / sqrt(2), centery - stick_size / sqrt(2)), // Top Right
QPointF(centerx, centery - stick_size), // Top
QPointF(centerx - stick_size / sqrt(2), centery - stick_size / sqrt(2)), // Top Left
QPointF(centerx - stick_size, centery), // Left
QPointF(centerx - stick_size / sqrt(2), centery + stick_size / sqrt(2)) // Bottom Left
}};
const float dot_radius = 2;
QPainter p(this);
p.translate(width() / 2, height() / 2);
// Bounding box.
p.setBrush(Qt::white);
p.setPen(Qt::gray);
p.drawRect(-scale - 1, -scale - 1, scale * 2 + 1, scale * 2 + 1);
// UI y-axis is opposite that of stick.
p.scale(1.0, -1.0);
// Enable AA after drawing bounding box.
p.setRenderHint(QPainter::Antialiasing, true);
p.setRenderHint(QPainter::SmoothPixmapTransform, true);
// Draw maximum values
p.setBrush(Qt::white);
p.setPen(Qt::black);
p.drawRect(centerx - max_size, centery - max_size, max_size * 2, max_size * 2);
// Input gate. (i.e. the octagon shape)
p.setPen(Qt::darkGray);
p.setBrush(gate_color);
p.drawPolygon(GetPolygonFromRadiusGetter(
[&stick](double ang) { return stick.GetGateRadiusAtAngle(ang); }, scale));
// Draw radius
p.setBrush(c_stick ? Qt::yellow : Qt::darkGray);
p.drawPolygon(radius_octagon.data(), static_cast<int>(radius_octagon.size()));
// Deadzone.
p.setPen(Qt::darkGray);
p.setBrush(QBrush(Qt::darkGray, Qt::BDiagPattern));
p.drawPolygon(GetPolygonFromRadiusGetter(
[&stick](double ang) { return stick.GetDeadzoneRadiusAtAngle(ang); }, scale));
// Draw deadzone
p.setBrush(c_stick ? Qt::darkYellow : Qt::lightGray);
p.drawEllipse(centerx - deadzone * stick_size, centery - deadzone * stick_size,
deadzone * stick_size * 2, deadzone * stick_size * 2);
// Input shape.
p.setPen(QPen(Qt::darkGray, 1.0, Qt::DashLine));
p.setBrush(Qt::NoBrush);
p.drawPolygon(GetPolygonFromRadiusGetter(
[&stick](double ang) { return stick.GetInputRadiusAtAngle(ang); }, scale));
// Draw stick
p.setBrush(Qt::black);
p.drawEllipse(centerx - 4 + curx * max_size, centery - 4 + cury * max_size, 8, 8);
// Raw stick position.
p.setPen(Qt::NoPen);
p.setBrush(Qt::darkGray);
p.drawEllipse(QPointF{raw_coord.x, raw_coord.y} * scale, dot_radius, dot_radius);
// Draw virtual stick
p.setBrush(Qt::red);
p.drawEllipse(centerx - 4 + virt_curx * max_size * radius,
centery - 4 + virt_cury * max_size * radius, 8, 8);
// Adjusted stick position.
if (adj_coord.x || adj_coord.y)
{
p.setPen(Qt::NoPen);
p.setBrush(Qt::red);
p.drawEllipse(QPointF{adj_coord.x, adj_coord.y} * scale, dot_radius, dot_radius);
}
}
void MappingIndicator::DrawMixedTriggers()

11
Source/Core/DolphinQt/Config/Mapping/MappingIndicator.h
View File

@ -25,7 +25,6 @@ public:
private:
void BindCursorControls(bool tilt);
void BindStickControls();
void BindMixedTriggersControls();
void DrawCursor(bool tilt);
@ -35,16 +34,6 @@ private:
void paintEvent(QPaintEvent*) override;
ControllerEmu::ControlGroup* m_group;
// Stick settings
ControlReference* m_stick_up;
ControlReference* m_stick_down;
ControlReference* m_stick_left;
ControlReference* m_stick_right;
ControlReference* m_stick_modifier;
ControllerEmu::NumericSetting* m_stick_radius;
ControllerEmu::NumericSetting* m_stick_deadzone;
// Cursor settings
ControlReference* m_cursor_up;
ControlReference* m_cursor_down;

143
Source/Core/InputCommon/ControllerEmu/ControlGroup/AnalogStick.cpp
View File

@ -9,6 +9,7 @@
#include <memory>
#include "Common/Common.h"
#include "Common/MathUtil.h"
#include "InputCommon/ControlReference/ControlReference.h"
#include "InputCommon/ControllerEmu/Control/Control.h"
@ -18,54 +19,158 @@
namespace ControllerEmu
{
AnalogStick::AnalogStick(const char* const name_, ControlState default_radius)
: AnalogStick(name_, name_, default_radius)
AnalogStick::AnalogStick(const char* const name_, std::unique_ptr<StickGate>&& stick_gate)
: AnalogStick(name_, name_, std::move(stick_gate))
{
}
AnalogStick::AnalogStick(const char* const name_, const char* const ui_name_,
ControlState default_radius)
: ControlGroup(name_, ui_name_, GroupType::Stick)
std::unique_ptr<StickGate>&& stick_gate)
: ControlGroup(name_, ui_name_, GroupType::Stick), m_stick_gate(std::move(stick_gate))
{
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));
std::make_unique<NumericSetting>(_trans("Input Radius"), 1.0, 0, 100));
numeric_settings.emplace_back(
std::make_unique<NumericSetting>(_trans("Input Shape"), 0.0, 0, 50));
numeric_settings.emplace_back(std::make_unique<NumericSetting>(_trans("Dead Zone"), 0, 0, 50));
}
AnalogStick::StateData AnalogStick::GetState()
AnalogStick::StateData AnalogStick::GetState(bool adjusted)
{
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();
// Return raw values. (used in UI)
if (!adjusted)
return {x, y};
const ControlState ang = atan2(y, x);
// TODO: make the AtAngle functions work with negative angles:
const ControlState ang = atan2(y, x) + MathUtil::TAU;
const ControlState ang_sin = sin(ang);
const ControlState ang_cos = cos(ang);
ControlState dist = sqrt(x * x + y * y);
const ControlState gate_max_dist = GetGateRadiusAtAngle(ang);
const ControlState input_max_dist = GetInputRadiusAtAngle(ang);
// dead zone code
dist = std::max(0.0, dist - deadzone);
dist /= (1 - deadzone);
// If input radius is zero we apply no scaling.
// This is useful when mapping native controllers without knowing intimate radius details.
const ControlState max_dist = input_max_dist ? input_max_dist : gate_max_dist;
// radius
dist *= radius;
ControlState dist = std::sqrt(x * x + y * y) / max_dist;
// The modifier halves the distance by 50%, which is useful
// for keyboard controls.
if (m)
// If the modifier is pressed, scale the distance by the modifier's value.
// This is affected by the modifier's "range" setting which defaults to 50%.
const ControlState modifier = controls[4]->control_ref->State();
if (modifier)
{
// TODO: Modifier's range setting gets reset to 100% when the clear button is clicked.
// This causes the modifier to not behave how a user might suspect.
// Retaining the old scale-by-50% behavior until range is fixed to clear to 50%.
dist *= 0.5;
// dist *= modifier;
}
// Apply deadzone as a percentage of the user-defined radius/shape:
const ControlState deadzone = GetDeadzoneRadiusAtAngle(ang);
dist = std::max(0.0, dist - deadzone) / (1.0 - deadzone);
// Scale to the gate shape/radius:
dist = dist *= gate_max_dist;
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};
}
ControlState AnalogStick::GetGateRadiusAtAngle(double ang) const
{
return m_stick_gate->GetRadiusAtAngle(ang);
}
ControlState AnalogStick::GetDeadzoneRadiusAtAngle(double ang) const
{
return CalculateInputShapeRadiusAtAngle(ang) * numeric_settings[SETTING_DEADZONE]->GetValue();
}
ControlState AnalogStick::GetInputRadiusAtAngle(double ang) const
{
return CalculateInputShapeRadiusAtAngle(ang) * numeric_settings[SETTING_INPUT_RADIUS]->GetValue();
}
ControlState AnalogStick::CalculateInputShapeRadiusAtAngle(double ang) const
{
const auto shape = numeric_settings[SETTING_INPUT_SHAPE]->GetValue() * 4.0;
if (shape < 1.0)
{
// Between 0 and 25 return a shape between octagon and circle
const auto amt = shape;
return OctagonStickGate::ComputeRadiusAtAngle(ang) * (1 - amt) + amt;
}
else
{
// Between 25 and 50 return a shape between circle and square
const auto amt = shape - 1.0;
return (1 - amt) + SquareStickGate::ComputeRadiusAtAngle(ang) * amt;
}
}
OctagonStickGate::OctagonStickGate(ControlState radius) : m_radius(radius)
{
}
ControlState OctagonStickGate::GetRadiusAtAngle(double ang) const
{
return ComputeRadiusAtAngle(ang) * m_radius;
}
ControlState OctagonStickGate::ComputeRadiusAtAngle(double ang)
{
// Ratio of octagon circumcircle to incircle:
const double incircle_radius = 0.923879532511287;
const double section_ang = MathUtil::TAU / 8;
return incircle_radius / std::cos(std::fmod(ang, section_ang) - section_ang / 2);
}
RoundStickGate::RoundStickGate(ControlState radius) : m_radius(radius)
{
}
ControlState RoundStickGate::GetRadiusAtAngle(double) const
{
return m_radius;
}
SquareStickGate::SquareStickGate(ControlState half_width) : m_half_width(half_width)
{
}
ControlState SquareStickGate::GetRadiusAtAngle(double ang) const
{
return ComputeRadiusAtAngle(ang) * m_half_width;
}
ControlState SquareStickGate::ComputeRadiusAtAngle(double ang)
{
const double section_ang = MathUtil::TAU / 4;
return 1 / std::cos(std::fmod(ang + section_ang / 2, section_ang) - section_ang / 2);
}
OctagonAnalogStick::OctagonAnalogStick(const char* name, ControlState gate_radius)
: OctagonAnalogStick(name, name, gate_radius)
{
}
OctagonAnalogStick::OctagonAnalogStick(const char* name, const char* ui_name,
ControlState gate_radius)
: AnalogStick(name, ui_name, std::make_unique<ControllerEmu::OctagonStickGate>(gate_radius))
{
}
} // namespace ControllerEmu

73
Source/Core/InputCommon/ControllerEmu/ControlGroup/AnalogStick.h
View File

@ -9,12 +9,57 @@
namespace ControllerEmu
{
// An abstract class representing the plastic shell that limits an analog stick's movement.
class StickGate
{
public:
// Angle is in radians and should be non-negative
virtual ControlState GetRadiusAtAngle(double ang) const = 0;
};
// An octagon-shaped stick gate is found on most Nintendo GC/Wii analog sticks.
class OctagonStickGate : public StickGate
{
public:
explicit OctagonStickGate(ControlState radius);
ControlState GetRadiusAtAngle(double ang) const override;
static ControlState ComputeRadiusAtAngle(double ang);
const ControlState m_radius;
};
// A round-shaped stick gate. Possibly found on 3rd-party accessories.
class RoundStickGate : public StickGate
{
public:
explicit RoundStickGate(ControlState radius);
ControlState GetRadiusAtAngle(double ang) const override;
private:
const ControlState m_radius;
};
// A square-shaped stick gate. e.g. keyboard input.
class SquareStickGate : public StickGate
{
public:
explicit SquareStickGate(ControlState half_width);
ControlState GetRadiusAtAngle(double ang) const override;
static ControlState ComputeRadiusAtAngle(double ang);
private:
const ControlState m_half_width;
};
class AnalogStick : public ControlGroup
{
public:
enum
{
SETTING_RADIUS,
SETTING_INPUT_RADIUS,
SETTING_INPUT_SHAPE,
SETTING_DEADZONE,
};
@ -24,10 +69,28 @@ public:
ControlState y{};
};
// The GameCube controller and Wiimote attachments have a different default radius
AnalogStick(const char* name, ControlState default_radius);
AnalogStick(const char* name, const char* ui_name, ControlState default_radius);
AnalogStick(const char* name, std::unique_ptr<StickGate>&& stick_gate);
AnalogStick(const char* name, const char* ui_name, std::unique_ptr<StickGate>&& stick_gate);
StateData GetState();
StateData GetState(bool adjusted = true);
// Angle is in radians and should be non-negative
ControlState GetGateRadiusAtAngle(double ang) const;
ControlState GetDeadzoneRadiusAtAngle(double ang) const;
ControlState GetInputRadiusAtAngle(double ang) const;
private:
ControlState CalculateInputShapeRadiusAtAngle(double ang) const;
std::unique_ptr<StickGate> m_stick_gate;
};
// An AnalogStick with an OctagonStickGate
class OctagonAnalogStick : public AnalogStick
{
public:
OctagonAnalogStick(const char* name, ControlState gate_radius);
OctagonAnalogStick(const char* name, const char* ui_name, ControlState gate_radius);
};
} // namespace ControllerEmu