Adding stick radius setting

because that makes it easier to adjust it

Adding visual aid for the hardware range because that makes it easier to adjust the radius relative to it

Source/Core/DolphinWX/Src/InputConfigDiagBitmaps.cpp

@@ -89,13 +89,53 @@ void InputConfigDialog::UpdateBitmaps(wxTimerEvent& WXUNUSED(event))
 						dc.DrawRectangle( 0, 31 - z*31, 64, 2);
 					}
 
-					// circle for visual aid for diagonal adjustment
+					// octagon for visual aid for diagonal adjustment
 					dc.SetPen(*wxLIGHT_GREY_PEN);
 					dc.SetBrush(*wxWHITE_BRUSH);
 					if ( GROUP_TYPE_STICK == (*g)->control_group->type )
 					{
-						dc.SetBrush(*wxTRANSPARENT_BRUSH);
-						dc.DrawCircle( 32, 32, 32);
+						// outline and fill colors
+						wxBrush LightGrayBrush(_T("#dddddd"));
+						wxPen LightGrayPen(_T("#bfbfbf"));
+						dc.SetBrush(LightGrayBrush);
+						dc.SetPen(LightGrayPen);
+
+						// polygon offset
+						float max
+							, diagonal
+							, box = 64
+							, d_of = box / 256.0
+							, x_of = box / 2.0;
+
+						if ((*g)->control_group->name == "Main Stick")
+						{
+							max = (87.0 / 127.0) * 100;
+							diagonal = (55.0 / 127.0) * 100.0;
+						}
+						else if ((*g)->control_group->name == "C-Stick")
+						{
+							max = (74.0 / 127.0) * 100;
+							diagonal = (46.0 / 127.0) * 100;
+						}
+						else
+						{
+							max = (82.0 / 127.0) * 100;
+							diagonal = (58.0 / 127.0) * 100;
+						}
+
+						// polygon corners
+						wxPoint Points[8];
+						Points[0].x = (int)(0.0 * d_of + x_of); Points[0].y = (int)(max * d_of + x_of);
+						Points[1].x = (int)(diagonal * d_of + x_of); Points[1].y = (int)(diagonal * d_of + x_of);
+						Points[2].x = (int)(max * d_of + x_of); Points[2].y = (int)(0.0 * d_of + x_of);
+						Points[3].x = (int)(diagonal * d_of + x_of); Points[3].y = (int)(-diagonal * d_of + x_of);
+						Points[4].x = (int)(0.0 * d_of + x_of); Points[4].y = (int)(-max * d_of + x_of);
+						Points[5].x = (int)(-diagonal * d_of + x_of); Points[5].y = (int)(-diagonal * d_of + x_of);
+						Points[6].x = (int)(-max * d_of + x_of); Points[6].y = (int)(0.0 * d_of + x_of);
+						Points[7].x = (int)(-diagonal * d_of + x_of); Points[7].y = (int)(diagonal * d_of + x_of);
+
+						// draw polygon
+						dc.DrawPolygon(8, Points);
 					}
 					else
 					{
@@ -106,7 +146,7 @@ void InputConfigDialog::UpdateBitmaps(wxTimerEvent& WXUNUSED(event))
 					{
 						// deadzone circle
 						dc.SetBrush(*wxLIGHT_GREY_BRUSH);
-						dc.DrawCircle( 32, 32, ((*g)->control_group)->settings[0]->value * 32 );
+						dc.DrawCircle( 32, 32, ((*g)->control_group)->settings[SETTING_DEADZONE]->value * 32 );
 					}
 
 					// raw dot

Source/Core/InputCommon/Src/ControllerEmu.cpp

@@ -226,6 +226,7 @@ ControllerEmu::AnalogStick::AnalogStick(const char* const _name) : ControlGroup(
 
 	controls.push_back(new Input(_trans("Modifier")));
 
+	settings.push_back(new Setting(_trans("Radius"), 0.7f, 0, 100));
 	settings.push_back(new Setting(_trans("Dead Zone"), 0, 0, 50));
 	settings.push_back(new Setting(_trans("Square Stick"), 0));
 

Source/Core/InputCommon/Src/ControllerEmu.h

@@ -35,6 +35,13 @@ enum
 	GROUP_TYPE_SLIDER,
 };
 
+enum
+{
+	SETTING_RADIUS,
+	SETTING_DEADZONE,
+	SETTING_SQUARE,
+};
+
 const char * const named_directions[] = 
 {
 	"Up",
@@ -126,8 +133,9 @@ public:
 			ControlState yy = controls[0]->control_ref->State() - controls[1]->control_ref->State();
 			ControlState xx = controls[3]->control_ref->State() - controls[2]->control_ref->State();
 
-			ControlState deadzone = settings[0]->value;
-			ControlState square = settings[1]->value;
+			ControlState radius = settings[SETTING_RADIUS]->value;
+			ControlState deadzone = settings[SETTING_DEADZONE]->value;
+			ControlState square = settings[SETTING_SQUARE]->value;
 			ControlState m = controls[4]->control_ref->State();
 
 			// modifier code
@@ -138,11 +146,11 @@ public:
 			}
 
 			// deadzone / square stick code
-			if (deadzone || square)
+			if (radius != 1 || deadzone || square)
 			{
 				// this section might be all wrong, but its working good enough, I think
 
-				ControlState ang = atan2(yy, xx); 
+				ControlState ang = atan2(yy, xx);
 				ControlState ang_sin = sin(ang);
 				ControlState ang_cos = cos(ang);
 
@@ -163,6 +171,9 @@ public:
 				ControlState amt = dist / stick_full;
 				dist -= ((square_full - 1) * amt * square);
 
+				// radius
+				dist *= radius;
+
 				yy = std::max(-1.0f, std::min(1.0f, ang_sin * dist));
 				xx = std::max(-1.0f, std::min(1.0f, ang_cos * dist));
 			}