diff options
Diffstat (limited to 'src/input_common/helpers/stick_from_buttons.cpp')
| -rw-r--r-- | src/input_common/helpers/stick_from_buttons.cpp | 67 |
1 files changed, 29 insertions, 38 deletions
diff --git a/src/input_common/helpers/stick_from_buttons.cpp b/src/input_common/helpers/stick_from_buttons.cpp index 82aa6ac2f..a6be6dac1 100644 --- a/src/input_common/helpers/stick_from_buttons.cpp +++ b/src/input_common/helpers/stick_from_buttons.cpp @@ -11,13 +11,21 @@ namespace InputCommon { class Stick final : public Common::Input::InputDevice { public: + // Some games such as EARTH DEFENSE FORCE: WORLD BROTHERS + // do not play nicely with the theoretical maximum range. + // Using a value one lower from the maximum emulates real stick behavior. + static constexpr float MAX_RANGE = 32766.0f / 32767.0f; + static constexpr float TAU = Common::PI * 2.0f; + // Use wider angle to ease the transition. + static constexpr float APERTURE = TAU * 0.15f; + using Button = std::unique_ptr<Common::Input::InputDevice>; - Stick(Button up_, Button down_, Button left_, Button right_, Button modifier_, + Stick(Button up_, Button down_, Button left_, Button right_, Button modifier_, Button updater_, 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_) { + right(std::move(right_)), modifier(std::move(modifier_)), updater(std::move(updater_)), + modifier_scale(modifier_scale_), modifier_angle(modifier_angle_) { up->SetCallback({ .on_change = [this](const Common::Input::CallbackStatus& callback_) { @@ -48,35 +56,31 @@ public: UpdateModButtonStatus(callback_); }, }); + updater->SetCallback({ + .on_change = [this](const Common::Input::CallbackStatus& callback_) { SoftUpdate(); }, + }); last_x_axis_value = 0.0f; last_y_axis_value = 0.0f; } 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; + 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; + 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; + std::chrono::duration_cast<std::chrono::milliseconds>(now - last_update).count()); + time_difference /= 1000.0f; if (time_difference > 0.5f) { time_difference = 0.5f; } @@ -193,8 +197,6 @@ public: } void UpdateStatus() { - const float coef = modifier_status.value ? modifier_scale : 1.0f; - bool r = right_status; bool l = left_status; bool u = up_status; @@ -212,7 +214,7 @@ public: // Move if a key is pressed if (r || l || u || d) { - amplitude = coef; + amplitude = modifier_status.value ? modifier_scale : MAX_RANGE; } else { amplitude = 0; } @@ -248,7 +250,7 @@ public: modifier->ForceUpdate(); } - void SoftUpdate() override { + void SoftUpdate() { Common::Input::CallbackStatus status{ .type = Common::Input::InputType::Stick, .stick_status = GetStatus(), @@ -266,30 +268,17 @@ public: Common::Input::StickStatus status{}; status.x.properties = properties; status.y.properties = properties; + if (Settings::values.emulate_analog_keyboard) { const auto now = std::chrono::steady_clock::now(); - float angle_ = GetAngle(now); + const float angle_ = GetAngle(now); status.x.raw_value = std::cos(angle_) * amplitude; status.y.raw_value = std::sin(angle_) * amplitude; return status; } - constexpr float SQRT_HALF = 0.707106781f; - int x = 0, y = 0; - if (right_status) { - ++x; - } - if (left_status) { - --x; - } - if (up_status) { - ++y; - } - if (down_status) { - --y; - } - const float coef = modifier_status.value ? modifier_scale : 1.0f; - status.x.raw_value = static_cast<float>(x) * coef * (y == 0 ? 1.0f : SQRT_HALF); - status.y.raw_value = static_cast<float>(y) * coef * (x == 0 ? 1.0f : SQRT_HALF); + + status.x.raw_value = std::cos(goal_angle) * amplitude; + status.y.raw_value = std::sin(goal_angle) * amplitude; return status; } @@ -308,6 +297,7 @@ private: Button left; Button right; Button modifier; + Button updater; float modifier_scale{}; float modifier_angle{}; float angle{}; @@ -331,11 +321,12 @@ std::unique_ptr<Common::Input::InputDevice> StickFromButton::Create( auto left = Common::Input::CreateInputDeviceFromString(params.Get("left", null_engine)); auto right = Common::Input::CreateInputDeviceFromString(params.Get("right", null_engine)); auto modifier = Common::Input::CreateInputDeviceFromString(params.Get("modifier", null_engine)); + auto updater = Common::Input::CreateInputDeviceFromString("engine:updater,button:0"); auto modifier_scale = params.Get("modifier_scale", 0.5f); auto modifier_angle = params.Get("modifier_angle", 5.5f); return std::make_unique<Stick>(std::move(up), std::move(down), std::move(left), - std::move(right), std::move(modifier), modifier_scale, - modifier_angle); + std::move(right), std::move(modifier), std::move(updater), + modifier_scale, modifier_angle); } } // namespace InputCommon |