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@ -66,14 +66,14 @@ public: |
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state.axes.insert_or_assign(axis, value); |
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} |
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float GetAxis(int axis) const { |
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float GetAxis(int axis, float range) const { |
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std::lock_guard lock{mutex}; |
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return state.axes.at(axis) / 32767.0f; |
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return state.axes.at(axis) / (32767.0f * range); |
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} |
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std::tuple<float, float> GetAnalog(int axis_x, int axis_y) const { |
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float x = GetAxis(axis_x); |
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float y = GetAxis(axis_y); |
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std::tuple<float, float> GetAnalog(int axis_x, int axis_y, float range) const { |
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float x = GetAxis(axis_x, range); |
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float y = GetAxis(axis_y, range); |
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y = -y; // 3DS uses an y-axis inverse from SDL
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// Make sure the coordinates are in the unit circle,
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@ -313,7 +313,7 @@ public: |
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trigger_if_greater(trigger_if_greater_) {} |
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bool GetStatus() const override { |
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const float axis_value = joystick->GetAxis(axis); |
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const float axis_value = joystick->GetAxis(axis, 1.0f); |
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if (trigger_if_greater) { |
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return axis_value > threshold; |
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} |
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@ -329,11 +329,13 @@ private: |
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class SDLAnalog final : public Input::AnalogDevice { |
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public: |
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SDLAnalog(std::shared_ptr<SDLJoystick> joystick_, int axis_x_, int axis_y_, float deadzone_) |
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: joystick(std::move(joystick_)), axis_x(axis_x_), axis_y(axis_y_), deadzone(deadzone_) {} |
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SDLAnalog(std::shared_ptr<SDLJoystick> joystick_, int axis_x_, int axis_y_, float deadzone_, |
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float range_) |
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: joystick(std::move(joystick_)), axis_x(axis_x_), axis_y(axis_y_), deadzone(deadzone_), |
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range(range_) {} |
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std::tuple<float, float> GetStatus() const override { |
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const auto [x, y] = joystick->GetAnalog(axis_x, axis_y); |
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const auto [x, y] = joystick->GetAnalog(axis_x, axis_y, range); |
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const float r = std::sqrt((x * x) + (y * y)); |
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if (r > deadzone) { |
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return std::make_tuple(x / r * (r - deadzone) / (1 - deadzone), |
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@ -363,6 +365,7 @@ private: |
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const int axis_x; |
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const int axis_y; |
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const float deadzone; |
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const float range; |
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}; |
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/// A button device factory that creates button devices from SDL joystick
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@ -458,13 +461,13 @@ public: |
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const int axis_x = params.Get("axis_x", 0); |
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const int axis_y = params.Get("axis_y", 1); |
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const float deadzone = std::clamp(params.Get("deadzone", 0.0f), 0.0f, .99f); |
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const float range = std::clamp(params.Get("range", 0.0f), 0.0f, .99f) + 0.50f; |
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auto joystick = state.GetSDLJoystickByGUID(guid, port); |
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// This is necessary so accessing GetAxis with axis_x and axis_y won't crash
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joystick->SetAxis(axis_x, 0); |
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joystick->SetAxis(axis_y, 0); |
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return std::make_unique<SDLAnalog>(joystick, axis_x, axis_y, deadzone); |
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return std::make_unique<SDLAnalog>(joystick, axis_x, axis_y, deadzone, range); |
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} |
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private: |
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