// Copyright 2020 Mookie. All Rights Reserved.

#include "EBBullet.h"
#include "EBBarrel.h"
#include "Engine/World.h"
#include "Engine/Engine.h"
#include "PhysicalMaterials/PhysicalMaterial.h"
#include "DrawDebugHelpers.h"

void AEBBullet::CreateDebugImpactWidget(FVector Location, bool bRicochet, bool bPenetration, FVector ImpactVelocity, float PenetrationDepth, UPhysicalMaterial* Material)
{
	UEBBarrel* Barrel = GetFiringBarrel();
	if (!Barrel || !Barrel->DebugImpactInfo)
	{
		return;
	}

	UWorld* World = GetWorld();
	if (!World)
	{
		return;
	}

	FString ImpactType;
	if (bRicochet)
	{
		ImpactType = TEXT("RICOCHET");
	}
	else if (bPenetration)
	{
		ImpactType = TEXT("PENETRATION");
	}
	else
	{
		ImpactType = TEXT("STOPPED");
	}

	FString MaterialName = Material ? Material->GetName() : TEXT("Unknown");

	float VelocityMPS = ImpactVelocity.Size();
	float VelocityKMH = VelocityMPS * 0.036f; // Convert cm/s to km/h

	FString DebugInfo = FString::Printf(TEXT(
		"Impact: %s | Material: %s | Velocity: %.1f m/s (%.1f km/h) | Mass: %.3f kg | Diameter: %.2f cm | Energy: %.1f J | Penetration: %.2f cm"
	), 
		*ImpactType,
		*MaterialName,
		VelocityMPS / 100.0f, // Convert cm/s to m/s for display
		VelocityKMH,
		GetEffectiveMass(),
		GetEffectiveDiameter(),
		0.5f * GetEffectiveMass() * FMath::Pow(VelocityMPS / 100.0f, 2.0f), // Kinetic energy in Joules
		PenetrationDepth
	);

	// Use simple on-screen debug message instead of UMG widget
	if (GEngine)
	{
		GEngine->AddOnScreenDebugMessage(-1, 10.0f, FColor::Yellow, DebugInfo);
	}

	// Also draw debug text in world space
	DrawDebugString(World, Location + FVector(0, 0, 50), DebugInfo, nullptr, FColor::Yellow, 10.0f, false, 1.2f);
}