1 files changed, 18 insertions, 8 deletions
diff --git a/src/input_common/helpers/stick_from_buttons.cpp b/src/input_common/helpers/stick_from_buttons.cpp
index 82aa6ac2f..096c23b07 100644
--- a/src/input_common/helpers/stick_from_buttons.cpp
+++ b/src/input_common/helpers/stick_from_buttons.cpp
@@ -11,13 +11,18 @@ 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;
+
     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_) {
@@ -48,6 +53,9 @@ 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;
     }
@@ -193,7 +201,7 @@ public:
     }
 
     void UpdateStatus() {
-        const float coef = modifier_status.value ? modifier_scale : 1.0f;
+        const float coef = modifier_status.value ? modifier_scale : MAX_RANGE;
 
         bool r = right_status;
         bool l = left_status;
@@ -248,7 +256,7 @@ public:
         modifier->ForceUpdate();
     }
 
-    void SoftUpdate() override {
+    void SoftUpdate() {
         Common::Input::CallbackStatus status{
             .type = Common::Input::InputType::Stick,
             .stick_status = GetStatus(),
@@ -287,7 +295,7 @@ public:
         if (down_status) {
             --y;
         }
-        const float coef = modifier_status.value ? modifier_scale : 1.0f;
+        const float coef = modifier_status.value ? modifier_scale : MAX_RANGE;
         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);
         return status;
@@ -308,6 +316,7 @@ private:
     Button left;
     Button right;
     Button modifier;
+    Button updater;
     float modifier_scale{};
     float modifier_angle{};
     float angle{};
@@ -331,11 +340,12 @@ 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