re3-wiiu/README.md

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# reVC-wiiu
<img src="https://github.com/GaryOderNichts/re3-wiiu/blob/miami-wiiu/logo.png?raw=true" alt="reVC logo" width="200">
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This is a port of GTA Vice City to the Nintendo Wii U.
## Building
To build this project make sure you install the required packages:
`(dkp-)pacman -S ppc-mpg123 wut`
Build [SDL2 from yawut](https://github.com/yawut/SDL/tree/wiiu-2.0.9) to avoid issues with crashes and exiting.
You also need to build [libsndfile](https://github.com/libsndfile/libsndfile). To configure libsndfile for the Wii U take a look at this gist: https://gist.github.com/GaryOderNichts/475edaf03ff08ba100840608f92eade8
Then clone this repo using `git clone --recursive https://github.com/GaryOderNichts/re3` and build using `make`.
To build the channel edit `CHANNEL_BUILD := 0` to `CHANNEL_BUILD := 1` in the `Makefile`.
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### Dockerfile
You can build a docker container using `docker build -t re3builder .`
Then you can build the project with `docker run -it --rm -v ${PWD}:/project re3builder make`
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# Original README
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[![Build Status](https://img.shields.io/endpoint.svg?url=https%3A%2F%2Factions-badge.atrox.dev%2FGTAmodding%2Fre3%2Fbadge%3Fref%3Dmiami&style=flat)](https://actions-badge.atrox.dev/GTAmodding/re3/goto?ref=miami)
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<a href="https://discord.gg/RFNbjsUMGg"><img src="https://img.shields.io/badge/discord-join-7289DA.svg?logo=discord&longCache=true&style=flat" /></a>
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## Intro
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In this repository you'll find the fully reversed source code for GTA III ([master](https://github.com/GTAmodding/re3/tree/master/) branch) and GTA VC ([miami](https://github.com/GTAmodding/re3/tree/miami/) branch).
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It has been tested and works on Windows, Linux, MacOS and FreeBSD, on x86, amd64, arm and arm64.\
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Rendering is handled either by original RenderWare (D3D8)
or the reimplementation [librw](https://github.com/aap/librw) (D3D9, OpenGL 2.1 or above, OpenGL ES 2.0 or above).\
Audio is done with MSS (using dlls from original GTA) or OpenAL.
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We cannot build for PS2 or Xbox yet. If you're interested in doing so, get in touch with us.
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## Installation
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- reVC requires game assets to work, so you **must** own [a copy of GTA Vice City](https://store.steampowered.com/app/12110/Grand_Theft_Auto_Vice_City/).
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- Build reVC or download the latest build:
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- [Windows D3D9 MSS 32bit](https://nightly.link/GTAmodding/re3/workflows/reVC_msvc_x86/miami/reVC_Release_win-x86-librw_d3d9-mss.zip)
- [Windows D3D9 64bit](https://nightly.link/GTAmodding/re3/workflows/reVC_msvc_amd64/miami/reVC_Release_win-amd64-librw_d3d9-oal.zip)
- [Windows OpenGL 64bit](https://nightly.link/GTAmodding/re3/workflows/reVC_msvc_amd64/miami/reVC_Release_win-amd64-librw_gl3_glfw-oal.zip)
- [Linux 64bit](https://nightly.link/GTAmodding/re3/workflows/build-cmake-conan/miami/ubuntu-18.04-gl3.zip)
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- [MacOS 64bit x86-64](https://nightly.link/GTAmodding/re3/workflows/build-cmake-conan/miami/macos-latest-gl3.zip)
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- Extract the downloaded zip over your GTA VC directory and run reVC. The zip includes the binary, updated and additional gamefiles and in case of OpenAL the required dlls.
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## Screenshots
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![screen_ 1613087332](https://user-images.githubusercontent.com/1521437/107714111-f84f3200-6ccc-11eb-902e-d757481d579a.png)
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![screen_ 1613086852](https://user-images.githubusercontent.com/1521437/107714115-fa18f580-6ccc-11eb-9de5-eb4cd04865d3.png)
![screen_ 1613086989](https://user-images.githubusercontent.com/1521437/107714103-f38a7e00-6ccc-11eb-88a3-c8c2033c51d6.png)
![screen_ 1613087193](https://user-images.githubusercontent.com/1521437/107714106-f4bbab00-6ccc-11eb-96a9-13821d9b9684.png)
## Improvements
We have implemented a number of changes and improvements to the original game.
They can be configured in `core/config.h`.
Some of them can be toggled at runtime, some cannot.
* Fixed a lot of smaller and bigger bugs
* User files (saves and settings) stored in GTA root directory
* Settings stored in reVC.ini file instead of gta_vc.set
* Debug menu to do and change various things (Ctrl-M to open)
* Debug camera (Ctrl-B to toggle)
* Rotatable camera
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* XInput controller support (Windows)
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* No loading screens between islands ("map memory usage" in menu)
* Rendering
* Widescreen support (properly scaled HUD, Menu and FOV)
* PS2 MatFX (vehicle reflections)
* PS2 alpha test (better rendering of transparency)
* Xbox vehicle rendering
* Xbox world lightmap rendering (needs Xbox map)
* Xbox ped rim light
* Xbox screen rain droplets
* More customizable colourfilter
* Menu
* More options
* Controller configuration menu
* ...
* Can load DFFs and TXDs from other platforms, possibly with a performance penalty
* ...
## To-Do
The following things would be nice to have/do:
* Fix physics for high FPS
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* Improve performance on lower end devices, especially the OpenGL layer on the Raspberry Pi (if you have experience with this, please get in touch)
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* [PS2 port](https://github.com/GTAmodding/re3/wiki/PS2-port)
* Xbox port (not quite as important)
* reverse remaining unused/debug functions
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* compare CodeWarrior build with original binary for more accurate code (very tedious)
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## Modding
Asset modifications (models, texture, handling, script, ...) should work the same way as with original GTA for the most part.
Mods that make changes to the code (dll/asi, CLEO, limit adjusters) will *not* work.
Some things these mods do are already implemented in re3 (much of SkyGFX, GInput, SilentPatch, Widescreen fix),
others can easily be achieved (increasing limis, see `config.h`),
others will simply have to be rewritten and integrated into the code directly.
Sorry for the inconvenience.
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## Building from Source
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When using premake, you may want to point GTA_VC_RE_DIR environment variable to GTA Vice City root folder if you want the executable to be moved there via post-build script.
Clone the repository with `git clone --recursive -b miami https://github.com/GTAmodding/re3.git reVC`. Then `cd reVC` into the cloned repository.
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<details><summary>Linux Premake</summary>
For Linux using premake, proceed: [Building on Linux](https://github.com/GTAmodding/re3/wiki/Building-on-Linux)
</details>
<details><summary>Linux Conan</summary>
Install python and conan, and then run build.
```
conan export vendor/librw librw/master@
mkdir build
cd build
conan install .. reVC/master@ -if build -o reVC:audio=openal -o librw:platform=gl3 -o librw:gl3_gfxlib=glfw --build missing -s reVC:build_type=RelWithDebInfo -s librw:build_type=RelWithDebInfo
conan build .. -if build -bf build -pf package
```
</details>
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<details><summary>MacOS Premake</summary>
For MacOS using premake, proceed: [Building on MacOS](https://github.com/GTAmodding/re3/wiki/Building-on-MacOS)
</details>
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<details><summary>FreeBSD</summary>
For FreeBSD using premake, proceed: [Building on FreeBSD](https://github.com/GTAmodding/re3/wiki/Building-on-FreeBSD)
</details>
<details><summary>Windows</summary>
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Assuming you have Visual Studio 2015/2017/2019:
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- Run one of the `premake-vsXXXX.cmd` variants on root folder.
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- Open build/reVC.sln with Visual Studio and compile the solution.
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Microsoft recently discontinued its downloads of the DX9 SDK. You can download an archived version here: https://archive.org/details/dxsdk_jun10
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**If you choose OpenAL on Windows** You must read [Running OpenAL build on Windows](https://github.com/GTAmodding/re3/wiki/Running-OpenAL-build-on-Windows).
</details>
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> :information_source: premake has an `--with-lto` option if you want the project to be compiled with Link Time Optimization.
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> :information_source: There are various settings in [config.h](https://github.com/GTAmodding/re3/tree/miami/src/core/config.h), you may want to take a look there.
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> :information_source: reVC uses completely homebrew RenderWare-replacement rendering engine; [librw](https://github.com/aap/librw/). librw comes as submodule of re3, but you also can use LIBRW enviorenment variable to specify path to your own librw.
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If you feel the need, you can also use CodeWarrior 7 to compile reVC using the supplied codewarrior/reVC.mcp project - this requires the original RW34 libraries, and the DX8 SDK. The build is unstable compared to the MSVC builds though, and is mostly meant to serve as a reference.
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## Contributing
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As long as it's not linux/cross-platform skeleton/compatibility layer, all of the code on the repo that's not behind a preprocessor condition(like FIX_BUGS) are **completely** reversed code from original binaries.
We **don't** accept custom codes, as long as it's not wrapped via preprocessor conditions, or it's linux/cross-platform skeleton/compatibility layer.
We accept only these kinds of PRs;
- A new feature that exists in at least one of the GTAs (if it wasn't in III/VC then it doesn't have to be decompilation)
- Game, UI or UX bug fixes (if it's a fix to original code, it should be behind FIX_BUGS)
- Platform-specific and/or unused code that's not been reversed yet
- Makes reversed code more understandable/accurate, as in "which code would produce this assembly".
- A new cross-platform skeleton/compatibility layer, or improvements to them
- Translation fixes, for languages original game supported
- Code that increase maintainability
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We have a [Coding Style](https://github.com/GTAmodding/re3/blob/master/CODING_STYLE.md) document that isn't followed or enforced very well.
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Do not use features from C++11 or later.
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## History
re3 was started sometime in the spring of 2018,
initially as a way to test reversed collision and physics code
inside the game.
This was done by replacing single functions of the game
with their reversed counterparts using a dll.
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After a bit of work the project lay dormant for about a year
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and was picked up again and pushed to github in May 2019.
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At the time I (aap) had reversed around 10k lines of code and estimated
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the final game to have around 200-250k.
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Others quickly joined the effort (Fire_Head, shfil, erorcun and Nick007J
in time order, and Serge a bit later) and we made very quick progress
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throughout the summer of 2019
after which the pace slowed down a bit.
Due to everyone staying home during the start of the Corona pandemic
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everybody had a lot of time to work on re3 again and
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we finally got a standalone exe in April 2020 (around 180k lines by then).
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After the initial excitement and fixing and polishing the code further,
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reVC was started in early May 2020 by starting from re3 code,
not by starting from scratch replacing functions with a dll.
After a few months of mostly steady progress we considered reVC
finished in December.
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Since then we have started reLCS, which is currently work in progress.
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## License
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We don't feel like we're in a position to give this code a license.\
The code should only be used for educational, documentation and modding purposes.\
We do not encourage piracy or commercial use.\
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Please keep derivate work open source and give proper credit.