[英]I am trying to understand these 2 blocks of code, could someone help please?
I am trying to understand some code and I was hoping someone could give me a basic overview of what this code means.我试图理解一些代码,我希望有人能给我这个代码含义的基本概述。 The first bit of code I don't understand is this:我不明白的第一段代码是这样的:
// loading file path
static string resourceRoot;
#define RESOURCE_PATH(p) (char*)((resourceRoot+"/"+string(p)).c_str())
The second bit of code I am trying to fully understand is this:我试图完全理解的第二段代码是:
void Draw::loadMeshFromFile(cMesh* mesh,string name)
{
bool fileload;
resourceRoot = m_Path.toStdString();
string str1 = "Head/";
string str2 = ".3ds";
fileload = mesh->loadFromFile(str1+name+str2);
if(!fileload)
{
printf("Error - 3D Model failed to load correctly.\n");
return;
}
Any help would be truly appreciated.任何帮助将不胜感激。 I am trying to strengthen my programming, so I'd be glad for any response.我正在努力加强我的编程,所以我很高兴得到任何回应。 Thanks谢谢
The first part is a macro which helps you to create a path for a specified resource, relative yo some root resource path, you can set in your code.第一部分是一个宏,它可以帮助您为指定资源创建路径,相对于一些根资源路径,您可以在代码中设置。
You basically would use it like this:你基本上会像这样使用它:
static string resourceRoot;
#define RESOURCE_PATH(p) (resourceRoot+"/"+string(p))
void load(cMesh* mesh)
{
// Probably set somewhere else
resourceRoot = "/opt/resources";
mesh->loadFromFile(RESOURCE_PATH("relarespath/myresource").c_str());
}
or或者
void load(cMesh* mesh)
{
// Probably set somewhere else
resourceRoot = "/opt/resources";
string myresourcename = RESOURCE_PATH("relarespath/myresource");
mesh->loadFromFile(myresourcename.c_str());
}
Since accessing the pointer in the original code is potentially dangerous, I removed it.由于访问原始代码中的指针存在潜在危险,因此我将其删除。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.