mirror of
https://github.com/litruv/TobiiEyetracking.git
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104 lines
4.7 KiB
C++
104 lines
4.7 KiB
C++
/******************************************************************************
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* Copyright 2017- Tobii Technology AB. All rights reserved.
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*
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* @author Temaran | Fredrik Lindh | fredrik.lindh@tobii.com | https://github.com/Temaran
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******************************************************************************/
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#pragma once
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#include "TobiiInteractionsTypes.h"
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#include "CoreMinimal.h"
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#include "Blueprint/UserWidget.h"
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#include "Kismet/BlueprintFunctionLibrary.h"
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#include "TobiiInteractionsBlueprintLibrary.generated.h"
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/**
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* Simplified interface for blueprint use. Only exposes the features most likely to be consumed from BP.
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*/
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UCLASS()
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class TOBIIINTERACTIONS_API UTobiiInteractionsBlueprintLibrary : public UBlueprintFunctionLibrary
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{
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GENERATED_UCLASS_BODY()
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public:
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UFUNCTION(BlueprintPure, Category = "Tobii Desktop Interaction")
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static bool IsInfiniteScreenEnabled();
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//Util functions to see if the feature can be considered enabled by the user.
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UFUNCTION(BlueprintPure, Category = "Tobii Desktop Interaction")
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static bool IsCleanUIEnabled();
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UFUNCTION(BlueprintPure, Category = "Tobii Desktop Interaction")
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static bool IsAimAtGazeEnabled();
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UFUNCTION(BlueprintPure, Category = "Tobii Desktop Interaction")
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static bool IsFireAtGazeEnabled();
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UFUNCTION(BlueprintPure, Category = "Tobii Desktop Interaction")
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static bool IsThrowAtGazeEnabled();
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public:
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/**
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* This function will determine an appropriate amount to dampen infinite screen depending on view pitch.
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*/
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UFUNCTION(BlueprintCallable, Category = "Tobii Infinite Screen")
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static float CalculateSmoothPitchStep(float ViewPitch);
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/**
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* This function will determine an appropriate amount to dampen infinite screen depending on view pitch.
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*/
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UFUNCTION(BlueprintCallable, Category = "Tobii Infinite Screen")
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static FRotator MakeInfiniteScreenCameraRotator(FRotator OriginalCameraRotation, FRotator InfiniteScreenAngles);
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public:
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/*
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* Render UI to a texture so we can use it on arbitrary meshes.
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* Thanks to https://answers.unrealengine.com/questions/353532/rendering-a-umg-widget-on-a-static-mesh.html for this.
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*/
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UTexture2D* TextureFromWidget(UUserWidget* const Widget, const FVector2D& DrawSize);
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/**
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* This function will find and return all real roots to the square equation Ax^2 + Bx + C = 0
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*/
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UFUNCTION(BlueprintCallable, Category = "Tobii Math Utils")
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static void FindRealSquareRoots(float A, float B, float C, TArray<float>& OutRealRoots);
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/**
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* This function will find and return all real roots to the cubic equation Ax^3 + Bx^2 + Cx + D = 0
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*/
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UFUNCTION(BlueprintCallable, Category = "Tobii Math Utils")
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static void FindRealCubicRoots(float A, float B, float C, float D, TArray<float>& OutRealRoots);
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/**
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* This function will find and return all real roots to the quartic equation Ax^4 + Bx^3 + Cx^2 + Dx + E = 0
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* WARNING: The roots of a full degree quartic are generally not cheap to compute. Use with care.
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*/
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UFUNCTION(BlueprintCallable, Category = "Tobii Math Utils")
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static void FindRealQuarticRoots(float A, float B, float C, float D, float E, TArray<float>& OutRealRoots);
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/**
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* This function will try to find which acceleration you will need for the current frame to hit a certain target given a homing projectile that uses acceleration for it's movement behavior.
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*/
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UFUNCTION(BlueprintCallable, Category = "Tobii Math Utils")
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static bool FindNeededAccelerationForAccelerationBasedHomingProjectile(const FTobiiAccelerationBasedHomingData& InputData, FTobiiAccelerationBasedHomingResult& BestResult);
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/**
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* This function will try to find the initial velocity needed to hit a moving target with a ballistic projectile that passes through a selected apex point.
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* To find an arc that works with your environment and thrower you might have to call this function multiple times and trace the results in your scene.
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*
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* @return Whether a valid velocity could be found. If this is false, it usually means that SourceZ + ProjectileApexOffset was smaller than TargetZ. Try increasing the apex offset and try again.
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*/
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UFUNCTION(BlueprintCallable, Category = "Tobii Math Utils")
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static bool FindNeededInitialVelocityForBallisticProjectile(const FTobiiBallisticData& InputData, TArray<FTobiiBallisticResult>& Results);
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/**
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* This function will trace along a ballistic path until it hits something. It will then return the traced path as well as what it hit.
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*
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* @return Whether anything was hit tracing the path
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*/
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UFUNCTION(BlueprintCallable, Category = "Tobii Math Utils", meta = (WorldContext = "WorldContextObject"))
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static bool TraceBallisticProjectilePath(UObject* WorldContextObject, const FTobiiProjectileTraceData& InputData, TArray<FVector>& OutTracedPath, FHitResult& OutHitResult);
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};
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