I touchs: 4月 2017

2017年4月16日星期日

Unreal: How To Read Customized Configuration File

since: 2017/04/16
update: 2017/04/16
reference:
1. I touchs: Unreal: Create C++ Blueprint Function Library
2. How can I load text from file with blueprint? - UE4 AnswerHub
3. Newline character in UE4 – Bocil Mania
4. set array elem - UE4 AnswerHub

A. 新增專案
1. 新增 Blueprint 的 Blank 專案, 取名為: ReadConfigFile

2. 新增 Maps 與 Data 資料夾:
Maps 用來存放預設的關卡地圖; Data 用來放置 config.ini 檔

    3. 新增一個檔名為 config.ini 的檔案, 內容如下:
# show debug information (1:true / 0:false)
debug=1

# remote IP (String)
remoteIP=192.168.1.1

# connect timeout (int)
timeout=10

說明: a. # 開頭為註解
         b. 變數名稱與變數值之間用 "=" 號連接, 且前後不可以有空白
         c. 此例有 3 行是變數的設定(之後需要在字串陣列變數指定此數量)

    4. 點選 Data 資料夾 > 滑鼠右鍵 > Show in Explorer

5. 將剛剛的 config.ini 檔案 copy 進來

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B. 新增 C++ Blueprint Function Library
1. Add New > New C++ Class...

2. 點選: Blueprint Function Library > Next

3. Name: FileHelperFunction > Create Class
> 自動開啟 visual studio 2015

    4. 修改 FileHelperFunction.h
// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "Kismet/BlueprintFunctionLibrary.h"
#include "FileHelperFunction.generated.h"

/**
*
*/
UCLASS()
class READCONFIGFILE_API UFileHelperFunction : public UBlueprintFunctionLibrary
{
    GENERATED_BODY()

    //@add ######
    public:

    UFUNCTION(BlueprintCallable, Category = "save")
        static bool FileSaveString(FString SaveString, FString SavePath);

    UFUNCTION(BlueprintPure, Category = "save")
        static bool FileLoadString(FString LoadPath, FString& LoadString);
};

    5. 修改 FileHelperFunction.cpp
// Fill out your copyright notice in the Description page of Project Settings.

#include "ReadConfigFile.h"
#include "FileHelperFunction.h"

//@add ######
bool UFileHelperFunction::FileSaveString(FString SaveString, FString SavePath)
{
    return FFileHelper::SaveStringToFile(SaveString, *(FPaths::GameDir() + SavePath));
}

bool UFileHelperFunction::FileLoadString(FString LoadPath, FString& LoadString)
{
    return FFileHelper::LoadFileToString(LoadString, *(FPaths::GameDir() + LoadPath));
}

    6. 建置 > 建置方案

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C. Level Blueprint: 新增變數
1. ConfigStrings: 字串陣列

2. FilteredStrings: 字串陣列

3. FilteredIndex: 整數

4. debug: 布林

5. remoteIP: 字串

6. timeout: 整數

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D. Level Blueprint: Load Config Strings

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E. Level Blueprint: Filter Config Strings

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F. Level Blueprint: Set Config Vars

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G. Package Project: Windows

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H. Package Project: Mac

2017年4月9日星期日

How to Connect Two Windows Together with an Ethernet Cable

since: 2017/04/09
update: 2017/04/09
reference:

A. 說明:
二台 Windows 對連, 早期需使用跳線連結, 近年來的主機多已支援自動跳線,
(Auto MDI/MID-X) 所以使用一般的網路線即可.

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B. 二台電腦需設成相同的工作群組名稱

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C. 網路設定 > 乙太網路 > 變更介面卡選項
1. 變更介面卡選項

2. 乙太網路 > 內容

3. TCP / IPv4 > 內容

     4. 使用下列的 IP 位址:
         IP: 192.168.1.1 (另一台 IP 設為 192.168.1.2)
         submask: 255.255.255.0
         default gateway: 不用輸入

        勾選: 結束時確認設定
        > 確認
        > 點選: Turn on Network discovery

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C. 網路設定 > 乙太網路 > Windows 防火墻
1. Windows 防火墻