diff options
| -rw-r--r-- | src/citra/default_ini.h | 6 | ||||
| -rw-r--r-- | src/input_common/sdl/sdl.cpp | 57 |
2 files changed, 59 insertions, 4 deletions
diff --git a/src/citra/default_ini.h b/src/citra/default_ini.h index 084372df4..d8a8fe44f 100644 --- a/src/citra/default_ini.h +++ b/src/citra/default_ini.h @@ -19,7 +19,13 @@ const char* sdl2_config_file = R"( # - "joystick": the index of the joystick to bind # - "button"(optional): the index of the button to bind # - "hat"(optional): the index of the hat to bind as direction buttons +# - "axis"(optional): the index of the axis to bind # - "direction"(only used for hat): the direction name of the hat to bind. Can be "up", "down", "left" or "right" +# - "threshould"(only used for axis): a float value in (-1.0, 1.0) which the button is +# triggered if the axis value crosses +# - "direction"(only used for axis): "+" means the button is triggered when the axis value +# is greater than the threshold; "-" means the button is triggered when the axis value +# is smaller than the threshold button_a= button_b= button_x= diff --git a/src/input_common/sdl/sdl.cpp b/src/input_common/sdl/sdl.cpp index ae0206909..756ee58b7 100644 --- a/src/input_common/sdl/sdl.cpp +++ b/src/input_common/sdl/sdl.cpp @@ -8,6 +8,7 @@ #include <tuple> #include <unordered_map> #include <SDL.h> +#include "common/logging/log.h" #include "common/math_util.h" #include "input_common/sdl/sdl.h" @@ -40,12 +41,16 @@ public: return SDL_JoystickGetButton(joystick.get(), button) == 1; } - std::tuple<float, float> GetAnalog(int axis_x, int axis_y) const { + float GetAxis(int axis) const { if (!joystick) return {}; SDL_JoystickUpdate(); - float x = SDL_JoystickGetAxis(joystick.get(), axis_x) / 32767.0f; - float y = SDL_JoystickGetAxis(joystick.get(), axis_y) / 32767.0f; + return SDL_JoystickGetAxis(joystick.get(), axis) / 32767.0f; + } + + std::tuple<float, float> GetAnalog(int axis_x, int axis_y) const { + float x = GetAxis(axis_x); + float y = GetAxis(axis_y); y = -y; // 3DS uses an y-axis inverse from SDL // Make sure the coordinates are in the unit circle, @@ -97,6 +102,27 @@ private: Uint8 direction; }; +class SDLAxisButton final : public Input::ButtonDevice { +public: + explicit SDLAxisButton(std::shared_ptr<SDLJoystick> joystick_, int axis_, float threshold_, + bool trigger_if_greater_) + : joystick(joystick_), axis(axis_), threshold(threshold_), + trigger_if_greater(trigger_if_greater_) {} + + bool GetStatus() const override { + float axis_value = joystick->GetAxis(axis); + if (trigger_if_greater) + return axis_value > threshold; + return axis_value < threshold; + } + +private: + std::shared_ptr<SDLJoystick> joystick; + int axis; + float threshold; + bool trigger_if_greater; +}; + class SDLAnalog final : public Input::AnalogDevice { public: SDLAnalog(std::shared_ptr<SDLJoystick> joystick_, int axis_x_, int axis_y_) @@ -130,8 +156,14 @@ public: * - "joystick": the index of the joystick to bind * - "button"(optional): the index of the button to bind * - "hat"(optional): the index of the hat to bind as direction buttons + * - "axis"(optional): the index of the axis to bind * - "direction"(only used for hat): the direction name of the hat to bind. Can be "up", - * "down", "left" or "right" + * "down", "left" or "right" + * - "threshould"(only used for axis): a float value in (-1.0, 1.0) which the button is + * triggered if the axis value crosses + * - "direction"(only used for axis): "+" means the button is triggered when the axis value + * is greater than the threshold; "-" means the button is triggered when the axis value + * is smaller than the threshold */ std::unique_ptr<Input::ButtonDevice> Create(const Common::ParamPackage& params) override { const int joystick_index = params.Get("joystick", 0); @@ -155,6 +187,23 @@ public: direction); } + if (params.Has("axis")) { + const int axis = params.Get("axis", 0); + const float threshold = params.Get("threshold", 0.5f); + const std::string direction_name = params.Get("direction", ""); + bool trigger_if_greater; + if (direction_name == "+") { + trigger_if_greater = true; + } else if (direction_name == "-") { + trigger_if_greater = false; + } else { + trigger_if_greater = true; + LOG_ERROR(Input, "Unknown direction %s", direction_name.c_str()); + } + return std::make_unique<SDLAxisButton>(GetJoystick(joystick_index), axis, threshold, + trigger_if_greater); + } + const int button = params.Get("button", 0); return std::make_unique<SDLButton>(GetJoystick(joystick_index), button); } |