implement circle pad modifier

src/citra/config.cpp

@@ -53,6 +53,7 @@ static const std::array<int, Settings::NativeInput::NUM_INPUTS> defaults = {
 
     // indirectly mapped keys
     SDL_SCANCODE_UP, SDL_SCANCODE_DOWN, SDL_SCANCODE_LEFT, SDL_SCANCODE_RIGHT,
+    SDL_SCANCODE_D,
 };
 
 void Config::ReadValues() {
@@ -61,6 +62,7 @@ void Config::ReadValues() {
         Settings::values.input_mappings[Settings::NativeInput::All[i]] =
             sdl2_config->GetInteger("Controls", Settings::NativeInput::Mapping[i], defaults[i]);
     }
+    Settings::values.pad_circle_modifier_scale = (float)sdl2_config->GetReal("Controls", "pad_circle_modifier_scale", 0.5);
 
     // Core
     Settings::values.frame_skip = sdl2_config->GetInteger("Core", "frame_skip", 0);

src/citra/default_ini.h

@@ -31,6 +31,11 @@ pad_circle_up =
 pad_circle_down =
 pad_circle_left =
 pad_circle_right =
+pad_circle_modifier =
+
+# The applied modifier scale to circle pad.
+# Must be in range of 0.0-1.0. Defaults to 0.5
+pad_circle_modifier_scale =
 
 [Core]
 # The applied frameskip amount. Must be a power of two.

src/citra_qt/config.cpp

@@ -31,6 +31,7 @@ static const std::array<QVariant, Settings::NativeInput::NUM_INPUTS> defaults =
 
     // indirectly mapped keys
     Qt::Key_Up, Qt::Key_Down, Qt::Key_Left, Qt::Key_Right,
+    Qt::Key_D,
 };
 
 void Config::ReadValues() {
@@ -39,6 +40,7 @@ void Config::ReadValues() {
         Settings::values.input_mappings[Settings::NativeInput::All[i]] =
             qt_config->value(QString::fromStdString(Settings::NativeInput::Mapping[i]), defaults[i]).toInt();
     }
+    Settings::values.pad_circle_modifier_scale = qt_config->value("pad_circle_modifier_scale", 0.5).toFloat();
     qt_config->endGroup();
 
     qt_config->beginGroup("Core");
@@ -128,6 +130,7 @@ void Config::SaveValues() {
         qt_config->setValue(QString::fromStdString(Settings::NativeInput::Mapping[i]),
             Settings::values.input_mappings[Settings::NativeInput::All[i]]);
     }
+    qt_config->setValue("pad_circle_modifier_scale", (double)Settings::values.pad_circle_modifier_scale);
     qt_config->endGroup();
 
     qt_config->beginGroup("Core");

src/common/key_map.cpp

@@ -23,12 +23,17 @@ const std::array<KeyTarget, Settings::NativeInput::NUM_INPUTS> mapping_targets =
     IndirectTarget::CIRCLE_PAD_DOWN,
     IndirectTarget::CIRCLE_PAD_LEFT,
     IndirectTarget::CIRCLE_PAD_RIGHT,
+    IndirectTarget::CIRCLE_PAD_MODIFIER,
 }};
 
 static std::map<HostDeviceKey, KeyTarget> key_map;
 static int next_device_id = 0;
 
-static bool circle_pad_up = false, circle_pad_down = false, circle_pad_left = false, circle_pad_right = false;
+static bool circle_pad_up = false;
+static bool circle_pad_down = false;
+static bool circle_pad_left = false;
+static bool circle_pad_right = false;
+static bool circle_pad_modifier = false;
 
 static void UpdateCirclePad(EmuWindow& emu_window) {
     constexpr float SQRT_HALF = 0.707106781;
@@ -42,8 +47,9 @@ static void UpdateCirclePad(EmuWindow& emu_window) {
         ++y;
     if (circle_pad_down)
         --y;
-    // TODO: apply modifier here
-    emu_window.CirclePadUpdated(x * (y == 0 ? 1.0 : SQRT_HALF), y * (x == 0 ? 1.0 : SQRT_HALF));
+
+    float modifier = circle_pad_modifier ? Settings::values.pad_circle_modifier_scale : 1.0;
+    emu_window.CirclePadUpdated(x * modifier * (y == 0 ? 1.0 : SQRT_HALF), y * modifier * (x == 0 ? 1.0 : SQRT_HALF));
 }
 
 int NewDeviceId() {
@@ -89,6 +95,10 @@ void PressKey(EmuWindow& emu_window, HostDeviceKey key) {
             circle_pad_right = true;
             UpdateCirclePad(emu_window);
             break;
+        case IndirectTarget::CIRCLE_PAD_MODIFIER:
+            circle_pad_modifier = true;
+            UpdateCirclePad(emu_window);
+            break;
         }
     }
 }
@@ -118,6 +128,10 @@ void ReleaseKey(EmuWindow& emu_window,HostDeviceKey key) {
             circle_pad_right = false;
             UpdateCirclePad(emu_window);
             break;
+        case IndirectTarget::CIRCLE_PAD_MODIFIER:
+            circle_pad_modifier = false;
+            UpdateCirclePad(emu_window);
+            break;
         }
     }
 }

src/common/key_map.h

@@ -13,7 +13,11 @@ class EmuWindow;
 namespace KeyMap {
 
 enum class IndirectTarget {
-    CIRCLE_PAD_UP, CIRCLE_PAD_DOWN, CIRCLE_PAD_LEFT, CIRCLE_PAD_RIGHT,
+    CIRCLE_PAD_UP,
+    CIRCLE_PAD_DOWN,
+    CIRCLE_PAD_LEFT,
+    CIRCLE_PAD_RIGHT,
+    CIRCLE_PAD_MODIFIER,
 };
 
 /**

src/core/settings.h

@@ -22,6 +22,7 @@ enum Values {
 
     // indirectly mapped keys
     CIRCLE_UP, CIRCLE_DOWN, CIRCLE_LEFT, CIRCLE_RIGHT,
+    CIRCLE_MODIFIER,
 
     NUM_INPUTS
 };
@@ -35,7 +36,8 @@ static const std::array<const char*, NUM_INPUTS> Mapping = {{
     "pad_cup", "pad_cdown", "pad_cleft", "pad_cright",
 
     // indirectly mapped keys
-    "pad_circle_up", "pad_circle_down", "pad_circle_left", "pad_circle_right"
+    "pad_circle_up", "pad_circle_down", "pad_circle_left", "pad_circle_right",
+    "pad_circle_modifier",
 }};
 static const std::array<Values, NUM_INPUTS> All = {{
     A, B, X, Y,
@@ -44,6 +46,7 @@ static const std::array<Values, NUM_INPUTS> All = {{
     DUP, DDOWN, DLEFT, DRIGHT,
     CUP, CDOWN, CLEFT, CRIGHT,
     CIRCLE_UP, CIRCLE_DOWN, CIRCLE_LEFT, CIRCLE_RIGHT,
+    CIRCLE_MODIFIER,
 }};
 }
 
@@ -51,6 +54,7 @@ static const std::array<Values, NUM_INPUTS> All = {{
 struct Values {
     // Controls
     std::array<int, NativeInput::NUM_INPUTS> input_mappings;
+    float pad_circle_modifier_scale;
 
     // Core
     int frame_skip;