#include "Runtime/Engine/Classes/Kismet/KismetMathLibrary.h"

//省略大部分代码

void AMyFPS_Character::OnMoveingOrRot()

{

    GetActorLocation();

    //LineTraceSingle_NEW();

    if (GEngine != nullptr)

    {

        FHitResult hit;

        auto temp_startPos = GetActorLocation();

        auto temp_rota = GetActorRotation();

        auto temp_endPos = FRotationMatrix(temp_rota).GetScaledAxis(EAxis::X) * 500.0f; // +

        //hit.

        m_bodyInstance.LineTrace(hit, temp_startPos, temp_endPos, false, false);

        if (hit.Actor != nullptr && hit.Actor != this)

        {

            m_operaTarget = hit.Actor;

        }

    }

}

//Exa 2

//In player controller class

 

//location the PC is focused on

const FVector Start = GetFocalLocation();

 

//256 units in facing direction of PC (256 units in front of the camera)

const FVector End = Start + GetControlRotation().Vector() * 256;

 

//The trace data is stored here

FHitResult HitData(ForceInit);

 

//If Trace Hits anything

if(  UMyStaticFunctionLibrary::Trace(GetWorld(),GetPawn(),Start,End,HitData)  )

{

	//Print out the name of the traced actor

	if(HitData.GetActor())

	{

		ClientMessage(HitData.GetActor()->GetName());

 

	        //Print out distance from start of trace to impact point

	        ClientMessage("Trace Distance: " + FString::SanitizeFloat(HitData.Distance));

	}

}