[工具]C++一键改名

       学习DirectX的2D游戏制作的时候，要切割小图并合并成TileMap。没找到好的切割工具，切割成小图只好用Unity，然后用TexturePacker合并。因为代码中是用索引来获取Json结构数据，因此小图需要重新命名，一个一个修改，太烦也太傻了。写个工具避免重复劳动。

一堆小图：

代码：

#include <iostream>
#include <Windows.h>
#include <ShlObj.h>

char* fileFolder = new char[MAX_PATH];

bool Initialize();
void RenameFile();

int main()
{
	if (Initialize())
	{
		if(IDYES == MessageBox(NULL, fileFolder, "修改路径", MB_YESNO))
			RenameFile();
	}

	system("pause");

	return 0;
}

bool Initialize()
{
	BROWSEINFO bi;
	memset(&bi, 0, sizeof(bi));
	bi.ulFlags = BIF_BROWSEFORCOMPUTER | BIF_EDITBOX | BIF_NEWDIALOGSTYLE;
	bi.lpszTitle = "请选择目录";

	LPITEMIDLIST pidl = SHBrowseForFolder(&bi);
	bool result = pidl != nullptr;
	if (!result)
		return false;

	SHGetPathFromIDList(pidl, fileFolder);
	pidl = nullptr;
	if ('\0' == fileFolder[0])
	{
		MessageBox(nullptr, "目录有误", "错误", MB_OK | MB_ICONERROR);
		return false;
	}

	return true;
}

void RenameFile()
{
	char* filePath = new char[MAX_PATH];
	strcpy_s(filePath, strlen(fileFolder) + 1, fileFolder);
	strcat_s(filePath, strlen(filePath) + strlen("\\*") + 1, "\\*");

	WIN32_FIND_DATA findFileData;
	HANDLE handle = FindFirstFile(filePath, &findFileData);
	if (INVALID_HANDLE_VALUE == handle)
	{
		MessageBox(nullptr, filePath, "错误", MB_OK | MB_ICONERROR);
		return;
	}

	int index = 0;
	char* oldFileNmae = new char[MAX_PATH];
	char* newFileName = new char[MAX_PATH];
	char indexStr[10];
	while (true)
	{
		if (findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
		{
			std::cout << "DIRECTORY: " << findFileData.cFileName << std::endl;
		}
		else
		{
			std::cout << "file: " << findFileData.cFileName << std::endl;
			// Old file name
			strcpy_s(oldFileNmae, strlen(fileFolder) + 1, fileFolder);
			strcat_s(oldFileNmae, strlen(oldFileNmae) + strlen("\\") + 1, "\\");
			strcat_s(oldFileNmae, strlen(oldFileNmae) + strlen(findFileData.cFileName) + 1, findFileData.cFileName);

			// New file name
			strcpy_s(newFileName, strlen(fileFolder) + 1, fileFolder);
			strcat_s(newFileName, strlen(newFileName) + strlen("\\") + 1, "\\");
			_itoa_s(index, indexStr, 10);
			strcat_s(newFileName, strlen(newFileName) + strlen(indexStr) + 1, indexStr);
			char* extensionName = strchr(findFileData.cFileName, '.');
			strcat_s(newFileName, strlen(newFileName) + strlen(extensionName) + 1, extensionName);
			std::cout << "oldFileNmae: " << oldFileNmae << std::endl;
			std::cout << "newFileName: " << newFileName << std::endl;
			rename(oldFileNmae, newFileName);
			++index;
		}

		if (!FindNextFile(handle, &findFileData))
			break;
	}

	FindClose(handle);
}