Mk2

uh stuff. i'm putting it in the readme.

Source/MediocreMapper/FileDownloader.h

@@ -0,0 +1,80 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "Http.h"
+#include "FileDownloader.generated.h"
+
+/**
+* Possible results from a download request.
+*/
+UENUM(BlueprintType, Category = "HTTP")
+enum class EDownloadResult : uint8
+{
+	Success,
+	DownloadFailed,
+	SaveFailed,
+	DirectoryCreationFailed
+};
+
+DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FOnResult, const EDownloadResult, Result);
+DECLARE_DYNAMIC_MULTICAST_DELEGATE_ThreeParams(FOnProgress, const int32, BytesSent, const int32, BytesReceived, const int32, ContentLength);
+
+/**
+ * Download a file from a URL and save it locally.
+ */
+UCLASS(BlueprintType, Category = "HTTP")
+class MEDIOCREMAPPER_API UFileDownloader : public UObject
+{
+	GENERATED_BODY()
+
+public:
+	/**
+	* Bind to know when the download is complete (even if it fails).
+	*/
+	UPROPERTY(BlueprintAssignable, Category = "HTTP")
+	FOnResult OnResult;
+	/**
+	* Bind to know when the download is complete (even if it fails).
+	*/
+	UPROPERTY(BlueprintAssignable, Category = "HTTP")
+	FOnProgress OnProgress;
+
+	/**
+	* The URL used to start this download.
+	*/
+	UPROPERTY(BlueprintReadOnly, Category = "HTTP")
+	FString FileUrl;
+	/**
+	* The path set to save the downloaded file.
+	*/
+	UPROPERTY(BlueprintReadOnly, Category = "HTTP")
+	FString FileSavePath;
+
+	UFileDownloader();
+	~UFileDownloader();
+
+	/**
+	* Instantiates a FileDownloader object, starts downloading and saves it when done.
+	* 
+	* @return The FileDownloader object. Bind to it's OnResult event to know when it's done downloading.
+	*/
+	UFUNCTION(BlueprintCallable, Meta = (DisplayName = "Create Downloader"), Category = "HTTP")
+	static UFileDownloader* MakeDownloader();
+
+	/**
+	* Starts downloading a file and saves it when done. Bind to the OnResult
+	* event to know when the download is done (preferrably, before calling this function).
+	* 
+	* @param Url		The file Url to be downloaded.
+	* @param SavePath	The absolute path and file name to save the downloaded file.
+	* @return Returns itself.
+	*/
+	UFUNCTION(BlueprintCallable, Category = "HTTP")
+	UFileDownloader* DownloadFile(const FString& Url, FString SavePath);
+
+private:
+
+	void OnReady(FHttpRequestPtr Request, FHttpResponsePtr Response, bool bWasSuccessful);
+	void OnProgress_Internal(FHttpRequestPtr Request, int32 BytesSent, int32 BytesReceived);
+};