NGN_DISK.H

METHODS of the class


Method

int32_t ReadBinaryFile(
    std::string filepath,          // Path to the file
    std::vector<uint8_t> &buffer   // Storage vector
);

Description

Opens and reads the specified file in binary mode from the system's file system and stores it in the given buffer. Additionally, this method returns the size of the read file (in bytes) or -1 in case of an error.

Example

std::vector<uint8_t> data;
int32_t length = ngn->disk->ReadBinaryFile(“data/gamelevel.bin”, data);

Method

int32_t WriteBinaryFile(
    std::string filepath,          // Path to the file
    std::vector<uint8_t> &buffer   // Vector with data to write
);

Description

Opens and writes, in binary mode, to the specified file in the system's file system, the data stored in the given buffer. Additionally, this method creates the path if it does not exist and returns the number of bytes written to the file or -1 in case of an error.

Example

std::vector<uint8_t> save_data;
int32_t length = ngn->disk->WriteBinaryFile(“save/card01.sav”, save_data);

Method

// First Overload
std::string ReadTextFile(std::string filepath);

// Second Overload
bool ReadTextFile(
    std::string filepath,              // Path to the file
    std::vector<std::string> &lines    // Storage vector for text lines
);

Description

Open and read, in text mode, the specified file in the system's file system and return its content as a string or an empty string if the file cannot be read (first overload). The second overload separately stores the text lines in the given vector of strings and returns TRUE or FALSE depending on whether the file could be read or not.

Example

// First Overload
std::string text = ngn->disk-> ReadTextFile(“data/info/eula.txt”);

// Second Overload
std::vector<std::string> text_lines;
bool r = ngn->disk->ReadTextFile(“data/info/eula.txt”, text_lines);

Method

int32_t WriteTextFile(
    std::string filepath,      	// Path to the file
    std::string text,          	// String with data to write
    bool append = false      	// Append data to the end of the existing file?
);

Description

Opens and writes, in text mode, to the specified file in the system's file system, the data stored in the given string. Additionally, this method creates the path if it does not exist and returns the number of characters written (including line breaks) to the file or -1 in case of an error. Optionally, you can specify whether the data should be appended to the end of the file, preserving the existing content (append = true), or if the file content should be overwritten (append = false, default).

Example

std::string txt = “This is a simple text”;
int32_t length = ngn->disk->WriteTextFile(“logs/debug.log”, txt, true);

Method

int32_t CheckFile(std::string path);

Description

Verifies if the specified file at the path exists and is accessible. If yes, it returns the size of the file in bytes. If not, it returns -1.

Example

int32_t length = ngn->disk->CheckFile(“logs/debug.log”);
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