#include "SCTLocationCapturer.h"
#include "Engine/SceneCapture2D.h"
#include "Engine/TextureRenderTarget2D.h"
#include "Components/SceneCaptureComponent2D.h"
#include "Engine/Engine.h"
#include "GameFramework/PlayerInput.h"
#include "Kismet/GameplayStatics.h"
#include "Camera/CameraComponent.h"
#include "TypedPrimitive.h"
#include "Materials/MaterialInstanceDynamic.h"
#include "Components/DrawFrustumComponent.h"
#include "GameFramework/SpringArmComponent.h"

#define NUM_SIDES 24

ASCTLocationCapturer* ASCTLocationCapturer::_Instance = nullptr;

ASCTLocationCapturer* ASCTLocationCapturer::GetCapturer2DInstance()
{
	if (ASCTLocationCapturer::_Instance == nullptr)
	{
		//创建小地图摄像机并拖放到场景里
		ASCTLocationCapturer::_Instance = GWorld->SpawnActor<ASCTLocationCapturer>(ASCTLocationCapturer::StaticClass());
	}

	return ASCTLocationCapturer::_Instance;
}


ASCTLocationCapturer::ASCTLocationCapturer()
{
	RootComponent = CreateDefaultSubobject<USceneComponent>(TEXT("SceneComponent"));
	/*创建弹簧手臂和摄像机*/
	CameraSpringArm = CreateDefaultSubobject<USpringArmComponent>(TEXT("CameraSpringArm"));
	CameraSpringArm->SetupAttachment(RootComponent);
	CameraSpringArm->TargetArmLength = 500.f;
	CameraSpringArm->bEnableCameraLag = false;
	CameraSpringArm->bUsePawnControlRotation = true;
	CameraSpringArm->bDoCollisionTest = false;
	CameraSpringArm->CameraLagSpeed = 3.0f;
	
	GetCaptureComponent2D()->SetupAttachment(CameraSpringArm);
	GetCaptureComponent2D()->bCaptureEveryFrame = true;
	GetCaptureComponent2D()->CaptureSource = ESceneCaptureSource::SCS_SceneColorSceneDepth;
	GetCaptureComponent2D()->ProjectionType = ECameraProjectionMode::Perspective;
	GetCaptureComponent2D()->OrthoWidth = 150.0f;
	GetCaptureComponent2D()->CompositeMode = ESceneCaptureCompositeMode::SCCM_Overwrite;
	GetCaptureComponent2D()->PrimitiveRenderMode = ESceneCapturePrimitiveRenderMode::PRM_UseShowOnlyList;
	
}

UTextureRenderTarget2D* ASCTLocationCapturer::GetMiniMapTexture()
{
	//实例化渲染贴图
	MiniMapTexture = NewObject<UTextureRenderTarget2D>();
	MiniMapTexture->InitAutoFormat(128.0f, 128.0f);
	MiniMapTexture->ClearColor = FLinearColor(1.0f, 0, 0, 1.0f);

	//将相机的渲染目标到纹理上
	GetCaptureComponent2D()->TextureTarget = MiniMapTexture;

	return MiniMapTexture;
}

void ASCTLocationCapturer::UpdateCapture2DTransform(FVector ArroundLocation, FRotator NormRotator)
{
	CameraSpringArm->SetWorldLocation(ArroundLocation);
	CameraSpringArm->SetWorldRotation(NormRotator);
}

void ASCTLocationCapturer::ShowActor(AActor* AxisActor)
{
	//创建显示的场景
	GetCaptureComponent2D()->ShowOnlyActorComponents(AxisActor);
}