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Diffstat (limited to 'src/input_common/analog_from_button.cpp')
-rwxr-xr-xsrc/input_common/analog_from_button.cpp238
1 files changed, 0 insertions, 238 deletions
diff --git a/src/input_common/analog_from_button.cpp b/src/input_common/analog_from_button.cpp
deleted file mode 100755
index 2fafd077f..000000000
--- a/src/input_common/analog_from_button.cpp
+++ /dev/null
@@ -1,238 +0,0 @@
-// Copyright 2017 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <atomic>
-#include <chrono>
-#include <cmath>
-#include <thread>
-#include "common/math_util.h"
-#include "common/settings.h"
-#include "input_common/analog_from_button.h"
-
-namespace InputCommon {
-
-class Analog final : public Input::AnalogDevice {
-public:
- using Button = std::unique_ptr<Input::ButtonDevice>;
-
- Analog(Button up_, Button down_, Button left_, Button right_, Button modifier_,
- float modifier_scale_, float modifier_angle_)
- : up(std::move(up_)), down(std::move(down_)), left(std::move(left_)),
- right(std::move(right_)), modifier(std::move(modifier_)), modifier_scale(modifier_scale_),
- modifier_angle(modifier_angle_) {
- Input::InputCallback<bool> callbacks{
- [this]([[maybe_unused]] bool status) { UpdateStatus(); }};
- up->SetCallback(callbacks);
- down->SetCallback(callbacks);
- left->SetCallback(callbacks);
- right->SetCallback(callbacks);
- modifier->SetCallback(callbacks);
- }
-
- bool IsAngleGreater(float old_angle, float new_angle) const {
- constexpr float TAU = Common::PI * 2.0f;
- // Use wider angle to ease the transition.
- constexpr float aperture = TAU * 0.15f;
- const float top_limit = new_angle + aperture;
- return (old_angle > new_angle && old_angle <= top_limit) ||
- (old_angle + TAU > new_angle && old_angle + TAU <= top_limit);
- }
-
- bool IsAngleSmaller(float old_angle, float new_angle) const {
- constexpr float TAU = Common::PI * 2.0f;
- // Use wider angle to ease the transition.
- constexpr float aperture = TAU * 0.15f;
- const float bottom_limit = new_angle - aperture;
- return (old_angle >= bottom_limit && old_angle < new_angle) ||
- (old_angle - TAU >= bottom_limit && old_angle - TAU < new_angle);
- }
-
- float GetAngle(std::chrono::time_point<std::chrono::steady_clock> now) const {
- constexpr float TAU = Common::PI * 2.0f;
- float new_angle = angle;
-
- auto time_difference = static_cast<float>(
- std::chrono::duration_cast<std::chrono::microseconds>(now - last_update).count());
- time_difference /= 1000.0f * 1000.0f;
- if (time_difference > 0.5f) {
- time_difference = 0.5f;
- }
-
- if (IsAngleGreater(new_angle, goal_angle)) {
- new_angle -= modifier_angle * time_difference;
- if (new_angle < 0) {
- new_angle += TAU;
- }
- if (!IsAngleGreater(new_angle, goal_angle)) {
- return goal_angle;
- }
- } else if (IsAngleSmaller(new_angle, goal_angle)) {
- new_angle += modifier_angle * time_difference;
- if (new_angle >= TAU) {
- new_angle -= TAU;
- }
- if (!IsAngleSmaller(new_angle, goal_angle)) {
- return goal_angle;
- }
- } else {
- return goal_angle;
- }
- return new_angle;
- }
-
- void SetGoalAngle(bool r, bool l, bool u, bool d) {
- // Move to the right
- if (r && !u && !d) {
- goal_angle = 0.0f;
- }
-
- // Move to the upper right
- if (r && u && !d) {
- goal_angle = Common::PI * 0.25f;
- }
-
- // Move up
- if (u && !l && !r) {
- goal_angle = Common::PI * 0.5f;
- }
-
- // Move to the upper left
- if (l && u && !d) {
- goal_angle = Common::PI * 0.75f;
- }
-
- // Move to the left
- if (l && !u && !d) {
- goal_angle = Common::PI;
- }
-
- // Move to the bottom left
- if (l && !u && d) {
- goal_angle = Common::PI * 1.25f;
- }
-
- // Move down
- if (d && !l && !r) {
- goal_angle = Common::PI * 1.5f;
- }
-
- // Move to the bottom right
- if (r && !u && d) {
- goal_angle = Common::PI * 1.75f;
- }
- }
-
- void UpdateStatus() {
- const float coef = modifier->GetStatus() ? modifier_scale : 1.0f;
-
- bool r = right->GetStatus();
- bool l = left->GetStatus();
- bool u = up->GetStatus();
- bool d = down->GetStatus();
-
- // Eliminate contradictory movements
- if (r && l) {
- r = false;
- l = false;
- }
- if (u && d) {
- u = false;
- d = false;
- }
-
- // Move if a key is pressed
- if (r || l || u || d) {
- amplitude = coef;
- } else {
- amplitude = 0;
- }
-
- const auto now = std::chrono::steady_clock::now();
- const auto time_difference = static_cast<u64>(
- std::chrono::duration_cast<std::chrono::milliseconds>(now - last_update).count());
-
- if (time_difference < 10) {
- // Disable analog mode if inputs are too fast
- SetGoalAngle(r, l, u, d);
- angle = goal_angle;
- } else {
- angle = GetAngle(now);
- SetGoalAngle(r, l, u, d);
- }
-
- last_update = now;
- }
-
- std::tuple<float, float> GetStatus() const override {
- if (Settings::values.emulate_analog_keyboard) {
- const auto now = std::chrono::steady_clock::now();
- float angle_ = GetAngle(now);
- return std::make_tuple(std::cos(angle_) * amplitude, std::sin(angle_) * amplitude);
- }
- constexpr float SQRT_HALF = 0.707106781f;
- int x = 0, y = 0;
- if (right->GetStatus()) {
- ++x;
- }
- if (left->GetStatus()) {
- --x;
- }
- if (up->GetStatus()) {
- ++y;
- }
- if (down->GetStatus()) {
- --y;
- }
- const float coef = modifier->GetStatus() ? modifier_scale : 1.0f;
- return std::make_tuple(static_cast<float>(x) * coef * (y == 0 ? 1.0f : SQRT_HALF),
- static_cast<float>(y) * coef * (x == 0 ? 1.0f : SQRT_HALF));
- }
-
- Input::AnalogProperties GetAnalogProperties() const override {
- return {modifier_scale, 1.0f, 0.5f};
- }
-
- bool GetAnalogDirectionStatus(Input::AnalogDirection direction) const override {
- switch (direction) {
- case Input::AnalogDirection::RIGHT:
- return right->GetStatus();
- case Input::AnalogDirection::LEFT:
- return left->GetStatus();
- case Input::AnalogDirection::UP:
- return up->GetStatus();
- case Input::AnalogDirection::DOWN:
- return down->GetStatus();
- }
- return false;
- }
-
-private:
- Button up;
- Button down;
- Button left;
- Button right;
- Button modifier;
- float modifier_scale;
- float modifier_angle;
- float angle{};
- float goal_angle{};
- float amplitude{};
- std::chrono::time_point<std::chrono::steady_clock> last_update;
-};
-
-std::unique_ptr<Input::AnalogDevice> AnalogFromButton::Create(const Common::ParamPackage& params) {
- const std::string null_engine = Common::ParamPackage{{"engine", "null"}}.Serialize();
- auto up = Input::CreateDevice<Input::ButtonDevice>(params.Get("up", null_engine));
- auto down = Input::CreateDevice<Input::ButtonDevice>(params.Get("down", null_engine));
- auto left = Input::CreateDevice<Input::ButtonDevice>(params.Get("left", null_engine));
- auto right = Input::CreateDevice<Input::ButtonDevice>(params.Get("right", null_engine));
- auto modifier = Input::CreateDevice<Input::ButtonDevice>(params.Get("modifier", null_engine));
- auto modifier_scale = params.Get("modifier_scale", 0.5f);
- auto modifier_angle = params.Get("modifier_angle", 5.5f);
- return std::make_unique<Analog>(std::move(up), std::move(down), std::move(left),
- std::move(right), std::move(modifier), modifier_scale,
- modifier_angle);
-}
-
-} // namespace InputCommon
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