Lioncash 6a75ea5653 ControllerEmu: Separate ControlGroup from ControllerEmu
ControllerEmu, the class, is essentially acting like a namespace for
ControlGroup. This makes it impossible to forward declare any of the
internals. It also globs a bunch of classes together which is kind of a
pain to manage.

This splits ControlGroup and the classes it contains into their own source
files and situates them all within a namespace, which gets them out of
global scope.

Since this allows forward declarations for the once-internal classes, it
now requires significantly less files to be rebuilt if anything is changed
in the ControllerEmu portion of code.

It does not split out the settings classes yet, however, as it
would be preferable to make a settings base class that all settings derive
from, but this would be a functional change -- this commit only intends to
move around existing code. Extracting the settings class will be done in
another commit.
2017-02-09 18:18:52 -05:00

100 lines
3.2 KiB
C++

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