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Minecraft Compiler Collection

What Minecraft Compiler Collection is
Minecraft Compiler Collection (MCC) is a free, open-source toolchain that turns high-level code into Minecraft commands. Its documented workflow has three stages: compiling source files, linking the resulting code, and packing it into a Minecraft datapack. The toolchain includes Command Block Language (CBL), a language inspired by C++, an assembly language with instructions similar to x86, a partial C compiler, Command IR, and a datapack packer.
The C compiler implements most language features and includes a preprocessor. It has one built-in type, `int`, represented as a 32-bit signed integer in a scoreboard objective. Command IR allows CBL, C, assembly, and IR code to be linked into one program. The packer uses a datapack definition file to create the datapack. MCC accepts `.cbl`, `.c`, `.asm`, `.ir`, `.o`, and `.dpd` files, and its command line exposes optimization levels 0 and 1.
MCC is implemented in Python and must be run with a Python interpreter; it is not bundled as an executable. Running it requires Python and the Lark package unless standalone parsers have been generated. The project identifies its license as MIT. Its demo page provides controls to load an example, build, reset, and create a new file.
Who it suits
MCC suits developers who want to write code that compiles into Minecraft commands and combine CBL, C, assembly, or IR in one program. It is a fit for people comfortable running a Python-based toolchain and supplying a datapack definition file for packaging.
What it does well
- Combines CBL, C, assembly, Command IR, and datapack packing.
- Links code from four languages or formats through Command IR.
- Accepts CBL, C, assembly, IR, object, and datapack definition files.
- Exposes optimization levels 0 and 1.
- Free and identified under the MIT license.
What to know first
- Requires Python and the Lark package unless standalone parsers are generated.
- Must be invoked with Python; no executable is bundled.
- The C compiler provides only one built-in type: `int`.
Limits
The C compiler has one built-in type, `int`, stored as a 32-bit signed integer in a scoreboard objective. Running MCC requires Python and Lark unless standalone parsers have been generated, and the tool is not bundled as an executable.
Getting started
- Open the MCC project repository on GitHub.
- Install Python and the Lark package, unless standalone parsers have been generated.
- On Windows, run the Python commands in the parser build script from the project root.
- Invoke MCC with a Python interpreter and provide source files such as `.cbl`, `.c`, `.asm`, or `.ir`.
- Compile and link the code, then pack it with a datapack definition file.
- Use the demo page to load an example, build, reset, or create a new file.
Verdict
Choose MCC if you want to compile and link several kinds of code into Minecraft commands and package the result as a datapack. Look elsewhere if you need a bundled executable or a C compiler with built-in types beyond `int`.
Questions
How much does MCC cost?
MCC is listed as free and open source.
Is MCC open source?
Yes. The repository identifies its license as MIT.
What platforms are listed?
The listed platforms are Linux, macOS, web, and Windows.
What languages and input files does MCC accept?
It accepts `.cbl`, `.c`, `.asm`, `.ir`, `.o`, and `.dpd` files. Its toolchain includes CBL, C, assembly, Command IR, and a datapack packer.
What does the C compiler support?
It partially implements C, with most language features and a preprocessor. Its only built-in type is `int`, stored as a 32-bit signed integer in a scoreboard objective.
What does running MCC require?
MCC runs with a Python interpreter and requires the Lark package unless standalone parsers have been generated. It is not bundled as an executable.
Facts from Minecraft Compiler Collection's own pages
- Assembler
- The assembler uses a simple assembly language with instructions similar to x86. · github.com, 4 Oct 2026
- CBL
- Command Block Language is a C++-inspired language designed for Minecraft commands. · github.com, 8 Oct 2026
- C compiler
- The partially implemented C compiler supports most language features and includes a preprocessor. · github.com, 8 Oct 2026
- C limits
- The C compiler has one built-in type, int, stored as a 32-bit signed integer in a scoreboard objective. · github.com, 4 Oct 2026
- Datapack output
- The packer creates a Minecraft datapack from compiled code and a datapack definition file. · github.com, 4 Oct 2026
- Datapacks
- The packer uses a datapack definition file to generate a Minecraft datapack. · github.com, 8 Oct 2026
- Demo
- The maker's demo page provides controls to load an example, build, reset, and create a new file. · simon816.com, 8 Oct 2026
- Dependencies
- Running MCC requires Python and the Lark package, unless standalone parsers have been generated. · github.com, 4 Oct 2026
- Dependency
- Running MCC requires the Lark Python package unless standalone parsers have been generated first. · github.com, 8 Oct 2026
- Executable
- MCC is not bundled as an executable and must be invoked with a Python interpreter. · github.com, 4 Oct 2026
- Input formats
- MCC accepts .cbl, .c, .asm, .ir, .o, and .dpd files. · github.com, 8 Oct 2026
- License
- The repository identifies its license as MIT. · github.com, 8 Oct 2026
- Linking
- Command IR supports linking code written in CBL, C, assembly, and IR into one program. · github.com, 8 Oct 2026
- Maker
- The GitHub profile identifies the maker as Simon816 and lists the United Kingdom as location. · github.com, 8 Oct 2026
- Mixed-language linking
- Command IR supports linking CBL, C, assembly, and IR code into one program. · github.com, 4 Oct 2026
- Optimization
- The Command IR abstraction enables optimizations, and the command line exposes optimization levels 0 and 1. · github.com, 8 Oct 2026
- Pipeline
- The documented pipeline has compiling, linking, and packing stages. · github.com, 4 Oct 2026
- Purpose
- Minecraft Compiler Collection compiles high-level code into Minecraft commands. · github.com, 8 Oct 2026
- Runtime
- MCC is implemented in Python and is invoked with a Python interpreter; it is not bundled as an executable. · github.com, 8 Oct 2026
- Toolchain
- MCC includes CBL, C, assembly, Command IR, and a datapack packer. · github.com, 8 Oct 2026
- Windows setup
- The README instructs Windows users to run the Python commands in the parser build script from the project root. · github.com, 4 Oct 2026
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