SpawnVolume.h

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "Components/BoxComponent.h"
#include "SpawnVolume.generated.h"

UCLASS()
class BATTERYCOLLECTOR_API ASpawnVolume : public AActor
{
	GENERATED_BODY()
	
public:	
	// Sets default values for this actor's properties
	ASpawnVolume();

	// Called every frame
	virtual void Tick(float DeltaTime) override;

	//returns the wheretospawn object
	FORCEINLINE class UBoxComponent* GetWhereToSpawn() const { return WhereToSpawn; }

	//find a random point in box component
	UFUNCTION(BlueprintPure, Category = "Spawning")
		FVector GetRandomPointInVolume();

	// this functions toggles whether or not the spawn volume spawns pickups
	UFUNCTION(BlueprintCallable, Category = "Spawning")
	void SetSpawningActive(bool bShouldSpawn);

protected:
	// Called when the game starts or when spawned
	virtual void BeginPlay() override;
	//the pickup to spawn
	UPROPERTY(EditAnywhere, Category = "Spawning")//UPROPERTY macro allows to manipulate vars in Blueprint dynamically
	TSubclassOf<class APickup> WhatToSpawn;
	FTimerHandle SpawnTimer;
	//minimum spawn delay
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Spawning")
	float SpawnDelayRangeLow;
	//maximum spawn delay
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Spawning")
	float SpawnDelayRangeHigh;

private:
	//Box Component to specify where pickups should spawn
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "Spawning", meta = (AllowPrivateAccess = "true"))
		class UBoxComponent* WhereToSpawn;
	//handle spawning a new pickup
	void SpawnPickup();
	//the current spawn delay
	float SpawnDelay;
};