diff options
| -rw-r--r-- | src/core/frontend/input.h | 15 | ||||
| -rwxr-xr-x | src/input_common/analog_from_button.cpp | 195 | ||||
| -rw-r--r-- | src/input_common/keyboard.cpp | 1 |
3 files changed, 138 insertions, 73 deletions
diff --git a/src/core/frontend/input.h b/src/core/frontend/input.h index 0c5d2b3b0..7a047803e 100644 --- a/src/core/frontend/input.h +++ b/src/core/frontend/input.h @@ -27,6 +27,10 @@ struct AnalogProperties { float range; float threshold; }; +template <typename StatusType> +struct InputCallback { + std::function<void(StatusType)> on_change; +}; /// An abstract class template for an input device (a button, an analog input, etc.). template <typename StatusType> @@ -50,6 +54,17 @@ public: [[maybe_unused]] f32 freq_high) const { return {}; } + void SetCallback(InputCallback<StatusType> callback_) { + callback = std::move(callback_); + } + void TriggerOnChange() { + if (callback.on_change) { + callback.on_change(GetStatus()); + } + } + +private: + InputCallback<StatusType> callback; }; /// An abstract class template for a factory that can create input devices. diff --git a/src/input_common/analog_from_button.cpp b/src/input_common/analog_from_button.cpp index f8ec179d0..100138d11 100755 --- a/src/input_common/analog_from_button.cpp +++ b/src/input_common/analog_from_button.cpp @@ -21,104 +21,153 @@ public: : 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_) { - update_thread_running.store(true); - update_thread = std::thread(&Analog::UpdateStatus, this); + Input::InputCallback<bool> callbacks{ + [this]([[maybe_unused]] bool status) { UpdateStatus(); }}; + up->SetCallback(callbacks); + down->SetCallback(callbacks); + left->SetCallback(callbacks); + right->SetCallback(callbacks); } - ~Analog() override { - if (update_thread_running.load()) { - update_thread_running.store(false); - if (update_thread.joinable()) { - update_thread.join(); - } - } + 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); } - void MoveToDirection(bool enable, float to_angle) { - if (!enable) { - return; - } + 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 top_limit = to_angle + aperture; - const float bottom_limit = to_angle - aperture; - - if ((angle > to_angle && angle <= top_limit) || - (angle + TAU > to_angle && angle + TAU <= top_limit)) { - angle -= modifier_angle; - if (angle < 0) { - angle += TAU; + 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 ((angle >= bottom_limit && angle < to_angle) || - (angle - TAU >= bottom_limit && angle - TAU < to_angle)) { - angle += modifier_angle; - if (angle >= TAU) { - angle -= TAU; + } 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 { - angle = to_angle; + return goal_angle; } + return new_angle; } - void UpdateStatus() { - while (update_thread_running.load()) { - 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; - } + 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 to the right - MoveToDirection(r && !u && !d, 0.0f); + // Move up + if (u && !l && !r) { + goal_angle = Common::PI * 0.5f; + } - // Move to the upper right - MoveToDirection(r && u && !d, Common::PI * 0.25f); + // Move to the upper left + if (l && u && !d) { + goal_angle = Common::PI * 0.75f; + } - // Move up - MoveToDirection(u && !l && !r, Common::PI * 0.5f); + // Move to the left + if (l && !u && !d) { + goal_angle = Common::PI; + } - // Move to the upper left - MoveToDirection(l && u && !d, Common::PI * 0.75f); + // Move to the bottom left + if (l && !u && d) { + goal_angle = Common::PI * 1.25f; + } - // Move to the left - MoveToDirection(l && !u && !d, Common::PI); + // Move down + if (d && !l && !r) { + goal_angle = Common::PI * 1.5f; + } - // Move to the bottom left - MoveToDirection(l && !u && d, Common::PI * 1.25f); + // Move to the bottom right + if (r && !u && d) { + goal_angle = Common::PI * 1.75f; + } + } - // Move down - MoveToDirection(d && !l && !r, Common::PI * 1.5f); + void UpdateStatus() { + const float coef = modifier->GetStatus() ? modifier_scale : 1.0f; - // Move to the bottom right - MoveToDirection(r && !u && d, Common::PI * 1.75f); + bool r = right->GetStatus(); + bool l = left->GetStatus(); + bool u = up->GetStatus(); + bool d = down->GetStatus(); - // Move if a key is pressed - if (r || l || u || d) { - amplitude = coef; - } else { - amplitude = 0; - } + // Eliminate contradictory movements + if (r && l) { + r = false; + l = false; + } + if (u && d) { + u = false; + d = false; + } - // Delay the update rate to 100hz - std::this_thread::sleep_for(std::chrono::milliseconds(10)); + // 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) { - return std::make_tuple(std::cos(angle) * amplitude, std::sin(angle) * amplitude); + 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; @@ -166,9 +215,9 @@ private: float modifier_scale; float modifier_angle; float angle{}; + float goal_angle{}; float amplitude{}; - std::thread update_thread; - std::atomic<bool> update_thread_running{}; + std::chrono::time_point<std::chrono::steady_clock> last_update; }; std::unique_ptr<Input::AnalogDevice> AnalogFromButton::Create(const Common::ParamPackage& params) { @@ -179,7 +228,7 @@ std::unique_ptr<Input::AnalogDevice> AnalogFromButton::Create(const Common::Para 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", 0.035f); + 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); diff --git a/src/input_common/keyboard.cpp b/src/input_common/keyboard.cpp index c467ff4c5..8261e76fd 100644 --- a/src/input_common/keyboard.cpp +++ b/src/input_common/keyboard.cpp @@ -75,6 +75,7 @@ public: } else { pair.key_button->UnlockButton(); } + pair.key_button->TriggerOnChange(); } } } |