74 lines
2.5 KiB
C
74 lines
2.5 KiB
C
|
// Copyright Epic Games, Inc. All Rights Reserved.
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include "CoreMinimal.h"
|
||
|
|
#include "UI/LyraSimulatedInputWidget.h"
|
||
|
|
#include "LyraJoystickWidget.generated.h"
|
||
|
|
|
||
|
|
class UImage;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* A UMG wrapper for the lyra virtual joystick.
|
||
|
|
*
|
||
|
|
* This will calculate a 2D vector clamped between -1 and 1
|
||
|
|
* to input as a key value to the player, simulating a gamepad analog stick.
|
||
|
|
*
|
||
|
|
* This is intended for use with and Enhanced Input player.
|
||
|
|
*/
|
||
|
|
UCLASS(meta=( DisplayName="Lyra Joystick" ))
|
||
|
|
class LYRAGAME_API ULyraJoystickWidget : public ULyraSimulatedInputWidget
|
||
|
|
{
|
||
|
|
GENERATED_BODY()
|
||
|
|
|
||
|
|
public:
|
||
|
|
|
||
|
|
ULyraJoystickWidget(const FObjectInitializer& ObjectInitializer);
|
||
|
|
|
||
|
|
//~ Begin UUserWidget
|
||
|
|
virtual FReply NativeOnTouchStarted(const FGeometry& InGeometry, const FPointerEvent& InGestureEvent) override;
|
||
|
|
virtual FReply NativeOnTouchMoved(const FGeometry& InGeometry, const FPointerEvent& InGestureEvent) override;
|
||
|
|
virtual FReply NativeOnTouchEnded(const FGeometry& InGeometry, const FPointerEvent& InGestureEvent) override;
|
||
|
|
virtual void NativeOnMouseLeave(const FPointerEvent& InMouseEvent) override;
|
||
|
|
virtual void NativeTick(const FGeometry& MyGeometry, float InDeltaTime) override;
|
||
|
|
//~ End UUserWidget interface
|
||
|
|
|
||
|
|
protected:
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Calculate the delta position of the current touch from the origin.
|
||
|
|
*
|
||
|
|
* Input the associated gamepad key on the player
|
||
|
|
*
|
||
|
|
* Move the foreground joystick image in association with the given input to give the appearance that it
|
||
|
|
* is moving along with the player's finger
|
||
|
|
*/
|
||
|
|
void HandleTouchDelta(const FGeometry& InGeometry, const FPointerEvent& InGestureEvent);
|
||
|
|
|
||
|
|
/** Flush any player input that has been injected and disable the use of this analog stick. */
|
||
|
|
void StopInputSimulation();
|
||
|
|
|
||
|
|
/** How far can the inner image of the joystick be moved? */
|
||
|
|
UPROPERTY(BlueprintReadOnly, EditAnywhere)
|
||
|
|
float StickRange = 50.0f;
|
||
|
|
|
||
|
|
/** Image to be used as the background of the joystick */
|
||
|
|
UPROPERTY(BlueprintReadWrite, meta = (BindWidget))
|
||
|
|
UImage* JoystickBackground;
|
||
|
|
|
||
|
|
/** Image to be used as the foreground of the joystick */
|
||
|
|
UPROPERTY(BlueprintReadWrite, meta = (BindWidget))
|
||
|
|
UImage* JoystickForeground;
|
||
|
|
|
||
|
|
/** Should we negate the Y-axis value of the joystick? This is common for "movement" sticks */
|
||
|
|
UPROPERTY(BlueprintReadWrite, EditAnywhere)
|
||
|
|
bool bNegateYAxis = false;
|
||
|
|
|
||
|
|
/** The origin of the touch. Set on NativeOnTouchStarted */
|
||
|
|
UPROPERTY(Transient)
|
||
|
|
FVector2D TouchOrigin = FVector2D::ZeroVector;
|
||
|
|
|
||
|
|
UPROPERTY(Transient)
|
||
|
|
FVector2D StickVector = FVector2D::ZeroVector;
|
||
|
|
};
|