How The Script Works

This script converts a resource pack for the game Minecraft from one version to another. It is a bash script, which is a type of script that is executed by the command line interpreter on Linux and macOS.

The script begins by defining some color placeholders, which will be used later to print messages to the user in different colors. It then defines a function called status_message that is used to print messages to the user in different colors depending on the type of message.

Next, the script defines a function called dependency_check that is used to check whether the required programs are installed. If any of the required programs are not installed, the function will print an error message and exit the script.

The script then defines a function called user_input that is used to prompt the user for input when necessary. This is used to ask the user for information such as the default asset version to use.

The script also defines a function called wait_for_jobs that is used to prevent the script from starting the next job until there is a free CPU thread available. This is used to ensure that the script does not use more CPU resources than are available.

The script then proceeds to check whether the input resource pack exists and to parse any user-defined flags that were passed to the script. It then warns the user about the limitations of the script and proceeds to extract the input resource pack.

After extracting the input resource pack, the script performs several operations on the extracted files, such as merging any additional resource packs, attaching materials, and so on. The exact operations performed will depend on the user-defined flags passed to the script.

Finally, the script creates the output resource pack and exits.

In Depth

To elaborate, the script is intended to be used to convert a resource pack for the game Minecraft from one version of the game to another. This can be useful if you have a resource pack that was created for an older version of the game, but you want to use it with a newer version.

The script is written in the Bash programming language, which is a type of script that is executed by the command line interpreter on Linux and macOS. Bash scripts are typically used to automate tasks or to perform operations that would be difficult or tedious to do manually.

The script begins by defining some color placeholders, which are used later to print messages to the user in different colors. It then defines a function called status_message that is used to print messages to the user in different colors depending on the type of message. This is used to make the output of the script easier to read and to highlight important information.

Next, the script defines a function called dependency_check that is used to check whether the required programs are installed. This function takes four arguments: the name of the program, the site where the program can be downloaded, a command that can be used to test whether the program is installed, and a string that the output of the test command should contain if the program is installed. If the program is not installed, the function will print an error message and exit the script.

The script then defines a function called user_input that is used to prompt the user for input when necessary. This function takes three arguments: the name of the variable that will hold the user's input, a prompt message to display to the user, and a default value to use if the user does not provide any input. This function is used to ask the user for information such as the default asset version to use.

The script also defines a function called wait_for_jobs that is used to prevent the script from starting the next job until there is a free CPU thread available. This is used to ensure that the script does not use more CPU resources than are available. This can help to prevent the script from slowing down or crashing the computer if it is run on a system with limited resources.

After defining these functions, the script proceeds to check whether the input resource pack exists and to parse any user-defined flags that were passed to the script. These flags can be used to control various aspects of the conversion process, such as whether to merge additional resource packs or attach materials.

The script then warns the user about the limitations of the script, such as the fact that it does not support all versions of Minecraft or all types of resource packs. This is intended to help the user understand the limitations of the script and to avoid any confusion or disappointment if it does not work as expected.

After warning the user, the script proceeds to extract the input resource pack. This involves unzipping the input file and creating a directory to hold the extracted files.

Once the input resource pack has been extracted, the script performs several operations on the extracted files. These operations may include merging additional resource packs, attaching materials, and so on. The exact operations performed will depend on the user-defined flags passed to the script.

Finally, the script creates the output resource pack and exits. This involves zipping the modified files and saving them to a file with the appropriate name. The output resource pack can then be used with the new version of Minecraft that the user specified.