第一次提交

2026-03-03 01:23:02 +08:00
commit 3e434877e8
1053 changed files with 102411 additions and 0 deletions
--- a/Plugins/GGS/Source/GenericUISystem/Private/UI/Mobile/GUIS_JoystickWidget.cpp
+++ b/Plugins/GGS/Source/GenericUISystem/Private/UI/Mobile/GUIS_JoystickWidget.cpp
@@ -0,0 +1,108 @@
+// Copyright 2025 https://yuewu.dev/en  All Rights Reserved.
+
+
+#include "UI/Mobile/GUIS_JoystickWidget.h"
+
+#include "CommonHardwareVisibilityBorder.h"
+#include "Components/Image.h"
+
+#include UE_INLINE_GENERATED_CPP_BY_NAME(GUIS_JoystickWidget)
+
+#define LOCTEXT_NAMESPACE "GUIS_Joystick"
+
+UGUIS_JoystickWidget::UGUIS_JoystickWidget(const FObjectInitializer& ObjectInitializer)
+	: Super(ObjectInitializer)
+{
+	SetConsumePointerInput(true);
+}
+
+FReply UGUIS_JoystickWidget::NativeOnTouchStarted(const FGeometry& InGeometry, const FPointerEvent& InGestureEvent)
+{
+	Super::NativeOnTouchStarted(InGeometry, InGestureEvent);
+
+	TouchOrigin = InGestureEvent.GetScreenSpacePosition();
+
+	FReply Reply = FReply::Handled();
+	if (!HasMouseCaptureByUser(InGestureEvent.GetUserIndex(), InGestureEvent.GetPointerIndex()))
+	{
+		Reply.CaptureMouse(GetCachedWidget().ToSharedRef());
+	}
+	return Reply;
+}
+
+FReply UGUIS_JoystickWidget::NativeOnTouchMoved(const FGeometry& InGeometry, const FPointerEvent& InGestureEvent)
+{
+	Super::NativeOnTouchMoved(InGeometry, InGestureEvent);
+	HandleTouchDelta(InGeometry, InGestureEvent);
+
+	FReply Reply = FReply::Handled();
+	if (!HasMouseCaptureByUser(InGestureEvent.GetUserIndex(), InGestureEvent.GetPointerIndex()))
+	{
+		Reply.CaptureMouse(GetCachedWidget().ToSharedRef());
+	}
+	return Reply;
+}
+
+FReply UGUIS_JoystickWidget::NativeOnTouchEnded(const FGeometry& InGeometry, const FPointerEvent& InGestureEvent)
+{
+	StopInputSimulation();
+	return FReply::Handled().ReleaseMouseCapture();
+}
+
+void UGUIS_JoystickWidget::NativeOnMouseLeave(const FPointerEvent& InMouseEvent)
+{
+	Super::NativeOnMouseLeave(InMouseEvent);
+	StopInputSimulation();
+}
+
+void UGUIS_JoystickWidget::NativeTick(const FGeometry& MyGeometry, float InDeltaTime)
+{
+	Super::NativeTick(MyGeometry, InDeltaTime);
+
+	if (!CommonVisibilityBorder || CommonVisibilityBorder->IsVisible())
+	{
+		// Move the inner stick icon around with the vector
+		if (JoystickForeground && JoystickBackground)
+		{
+			JoystickForeground->SetRenderTranslation(
+				(bNegateYAxis ? FVector2D(1.0f, -1.0f) : FVector2D(1.0f)) *
+				StickVector *
+				(JoystickBackground->GetDesiredSize() * 0.5f)
+			);
+		}
+		InputKeyValue2D(StickVector);
+	}
+}
+
+void UGUIS_JoystickWidget::HandleTouchDelta(const FGeometry& InGeometry, const FPointerEvent& InGestureEvent)
+{
+	const FVector2D& ScreenSpacePos = InGestureEvent.GetScreenSpacePosition();
+
+	// The center of the geo locally is just its size
+	FVector2D LocalStickCenter = InGeometry.GetAbsoluteSize();
+
+	FVector2D ScreenSpaceStickCenter = InGeometry.LocalToAbsolute(LocalStickCenter);
+	// Get the offset from the origin
+	FVector2D MoveStickOffset = (ScreenSpacePos - ScreenSpaceStickCenter);
+	if (bNegateYAxis)
+	{
+		MoveStickOffset *= FVector2D(1.0f, -1.0f);
+	}
+
+	FVector2D MoveStickDir = FVector2D::ZeroVector;
+	float MoveStickLength = 0.0f;
+	MoveStickOffset.ToDirectionAndLength(MoveStickDir, MoveStickLength);
+
+	MoveStickLength = FMath::Min(MoveStickLength, StickRange);
+	MoveStickOffset = MoveStickDir * MoveStickLength;
+
+	StickVector = MoveStickOffset / StickRange;
+}
+
+void UGUIS_JoystickWidget::StopInputSimulation()
+{
+	TouchOrigin = FVector2D::ZeroVector;
+	StickVector = FVector2D::ZeroVector;
+}
+
+#undef LOCTEXT_NAMESPACE