https://github.com/anbcodes/cmc
cmc is a work-in-progress Minecraft client written in C. It currently supports joining servers with compression, encryption, and authenticated login.
https://github.com/anbcodes/cmc
Last synced: 5 months ago
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cmc is a work-in-progress Minecraft client written in C. It currently supports joining servers with compression, encryption, and authenticated login.
- Host: GitHub
- URL: https://github.com/anbcodes/cmc
- Owner: anbcodes
- Created: 2024-07-11T16:21:49.000Z (almost 2 years ago)
- Default Branch: main
- Last Pushed: 2025-04-15T22:42:03.000Z (about 1 year ago)
- Last Synced: 2025-04-15T23:27:03.670Z (about 1 year ago)
- Language: C
- Homepage:
- Size: 825 KB
- Stars: 1
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# cmc
## TODO
- Optimize `create_chunk_and_light_data_packet`
- Optimize `chunk_section_update_mesh`
## Project setup
### Debian Linux
If you are on debian linux run `./dev-setup.sh` and `./import-data.sh`.
To build run
- `mkdir build && cd build`
- `cmake ..`
- `cd ..`
- `cmake --build build -j8`
To run
- Create a Minecraft profile and set a custom Java executable to the path of `custommc.sh`
- Run that Minecraft profile which creates a file called `./run-with-token.sh`
- Edit that file to change the server hostname and port.
- Run `./run-with-token.sh`
To run with a local server online mode turned off (the final two args are unused auth placeholders)
- `./build/cmc _ _`
### Generic instructions
- `mkdir lib`
- Download the prebuilt WGPU libraries from
https://github.com/gfx-rs/wgpu-native/releases and put the extracted zip in
the `lib/wgpu` directory
- Download the GLFW sources into `lib/glfw` from the version pointed to from
https://github.com/gfx-rs/wgpu-native/tree/trunk/examples/vendor
- From the main directory, run `git clone https://github.com/recp/cglm.git -o ./lib/cglm` to
get cglm. It works as a header-only library.
- Retrieve `blocks.json` from the server jar with the following and place it in
`/data`.
```
java -DbundlerMainClass=net.minecraft.data.Main -jar paper-1.20.6-145.jar --reports
```
- To load default client resources, copy your client jar from
`~/.minecraft/versions` to `/data` and extract it with `gunzip 1.20.6.jar`. To
clean things up you can `rm *.class` as these files are not needed.
- To compile and run follow the instructions above
## Features
- Offline and online mode support
- Encryption support
- Basic rendering
- Building and breaking blocks
- Player movement
## Debugging
If there is a core dump:
```
coredumpctl dump -r `pwd`/a.out > core && gdb a.out -c core
```
## Notes on how I got started with a WebGPU example in C
- `framework.h` and `framework.c` are from
https://github.com/gfx-rs/wgpu-native/tree/trunk/examples/framework
- `main.c` and `shader.wsgl` are from
https://github.com/gfx-rs/wgpu-native/tree/trunk/examples/triangle
- In `main.c` I updated the includes to their local locations:
```
#include "wgpu/webgpu.h"
#include "wgpu/wgpu.h"
// ...
#include "GLFW/include/GLFW/glfw3.h"
#include "GLFW/include/GLFW/glfw3native.h"
```
- I added
```
#define GLFW_EXPOSE_NATIVE_WAYLAND
#define GLFW_EXPOSE_NATIVE_X11
```
before
```
#include "GLFW/include/GLFW/glfw3.h"
```
- I commented out this line that causes an error (probably a mismatched wgpu
version)
```
// .depthSlice = WGPU_DEPTH_SLICE_UNDEFINED,
```
## To figure out which texture keys there are in model files:
```
jq -r '.textures | keys[]' block/*.json | sort | uniq -c | sort -nr
```