Function

You can use keyword func to define a function in .deco file.

Function Definition

The function you define in .deco file will be saved as a .mcfunction file in the same folder of your .deco file.

For example, if you have a .deco file in functions/core/test.deco and the content of the file is:

func helloworld {
    say Hello, world!
}

After compiling, Deco will generate a helloworld.mcfunction file in the same folder of your test.deco file: functions/core/helloworld.mcfunction.

Note: Since Minecraft only supports lowercase function names, Deco will convert the function name to lowercase. You can still use uppercase function names in your .deco file for better readability, but remember it will be converted to lowercase after compiling.

Implicit Functions

Since Deco is designed to be compatible with vanilla datapack, codes that are directly written in .deco file without func keyword will still be treated as a deco function as well.

For example, if you have a .deco file in functions/core/test.deco and the content of the file is:

say Hello, world!

After compiling, Deco will generate a test.mcfunction file in the same folder of your test.deco file: functions/core/test.mcfunction, containing the code you wrote:

say Hello, world!

If there are mixed codes in your .deco file, Deco will treat them as implicit functions.

Mixed Functions

If your .deco file contains both directly written code and code wrapped in func blocks, Deco will generate multiple .mcfunction files. The code outside of any func blocks will be compiled into a .mcfunction file named after the .deco file, while each func block will generate its own .mcfunction file named after the function.

For example, if you have a .deco file in functions/core/test.deco with the following content:

say This is outside of any function

func helloworld {
    say Hello, world!
}

func goodbye {
    say Goodbye!
}

say This is another command

After compiling, Deco will generate three .mcfunction files:

functions/
└── core/
    ├── test.mcfunction
    ├── helloworld.mcfunction
    └── goodbye.mcfunction

Each file will contain the code from the corresponding section of the .deco file:

say This is outside of any function
say This is another command