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README.md
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README.md
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# Intro
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# re3
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[](https://ci.appveyor.com/project/aap/re3/branch/master)
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<a href="https://discord.gg/jYpXxTm"><img src="https://img.shields.io/badge/discord-join-7289DA.svg?logo=discord&longCache=true&style=flat" /></a>
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<a href="https://ci.appveyor.com/api/projects/aap/re3/artifacts/bin/Debug/re3.dll?branch=master&job=Configuration%3A+Debug"><img src="https://img.shields.io/badge/download-debug-9cf.svg" /></a>
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<a href="https://ci.appveyor.com/api/projects/aap/re3/artifacts/bin/Release/re3.dll?branch=master&job=Configuration%3A+Release"><img src="https://img.shields.io/badge/download-release-blue.svg" /></a>
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## Intro
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The aim of this project is to reverse GTA III for PC by replacing
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parts of the game [one by one](https://en.wikipedia.org/wiki/Ship_of_Theseus)
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such that we have a working game at all times.
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Apparently you can download a binary of the latest version here:
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[Debug](https://ci.appveyor.com/api/projects/aap/re3/artifacts/bin/Debug/re3.dll?branch=master&job=Configuration%3A+Debug),
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[Release](https://ci.appveyor.com/api/projects/aap/re3/artifacts/bin/Release/re3.dll?branch=master&job=Configuration%3A+Release).
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## How can I try it?
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Build status:
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[](https://ci.appveyor.com/project/aap/re3/branch/master)
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- re3 requires game assets to work, so you need to own a copy of GTA III.
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- Since re3 is a DLL that works with original GTA III for now, you need Simple DLL Loader. You can get it [here](https://github.com/aap/simpledllloader).
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- Build re3 or download it from one of the above links (Debug or Release).
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- Make sure you included the re3 in `plugins.cfg` or `dlls.cfg`.
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- re3 starts the script `main_freeroam.scm` that comes along with it by default, so you should copy it to from `gamefiles/` to your game's `data/` directory.
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Re3 starts the script main_freeroam.scm by default. Make sure you copy it to your data directory.
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 **Notice**
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# Strategy
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If you want to load original script/story, press and hold G while game is loading.
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This includes both starting new game and loading save game.
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 **Notice if you will build it**
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There are various settings at the very bottom of `config.h`, you may want to take a look there. i.e. FIX_BUGS define fixes the bugs we've come across.
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https://github.com/GTAmodding/re3/blob/readme/src/core/config.h
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## I want to contribute, where should I start?
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A good approach is to start at the fringes of the code base,
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i.e. classes that don't depend on code that we don't have reversed yet.
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If a function uses only few unreversed functions that would be inconvenient
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to reverse at the time, calling the original functions is acceptable.
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# Progress
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This is a list of some things that have been reversed to some non-trivial extent.
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Not everything is listed, check the code.
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(TODO: keep this list at least a bit up to date...)
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### Unreversed / incomplete classes (at least the ones we know)
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```
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CPool
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CTxdStore
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CVector
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CVector2D
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CMatrix
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CModelInfo
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CBaseModelInfo
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CSimpleModelInfo
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CTimeModelInfo
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CClumpModelInfo
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CPedModelInfo
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CVehicleModelInfo
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CVisibilityPlugins
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CRenderer
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CSprite
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CSprite2d
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CFont
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CEntity
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CPhysical
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CCollision
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CCullZones
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CTheZones
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CPathFind
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CAudioManager, cDMAudio, cSampleManager and all audio - being worked on
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CAccidentManager
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CBoat
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CBrightLights
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CBulletInfo
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CBulletTraces
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CCam
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CParticle
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CParticleMgr
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CPointLights
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CCoronas
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CAntennas
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CClouds
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CHud
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CCamera
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CCivilianPed
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CCopPed
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CCrane
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CCranes
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CCullZone
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CCullZones
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CEmergencyPed
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CExplosion
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CFallingGlassPane
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CFire
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CFireManager
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CGame
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CGarage
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CGarages
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CGlass
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CMenuManager
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CMotionBlurStreaks
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CPacManPickups
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CPed - being worked on
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CPedIK
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CPhoneInfo - one function left
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CPlayerInfo
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CPlayerPed
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CProjectile
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CProjectileInfo
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CRoadBlocks
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CRunningScript - being worked on
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CStats
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CSpecialFX
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CTrafficLights
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CWaterCannon
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CWaterCannons
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CWeapon
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CWeaponEffects
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```
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# Low hanging fruit
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There are a couple of things that have been reversed for other projects
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already that could probably be put into this project without too much effort.
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Again, the list is not complete:
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* ~~Animation (https://github.com/aap/iii_anim)~~
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* File Loader (https://github.com/aap/librwgta/tree/master/tools/IIItest)
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* ...
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# Coding style
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### Coding style
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I started writing in [Plan 9 style](http://man.cat-v.org/plan_9/6/style),
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but realize that this is not the most popular style, so I'm willing to compromise.
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@ -178,7 +190,7 @@ but here are some observations:
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* Generally, try to make the code look as if R* could have written it
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# Environment Variables
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### Environment Variables
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Here you can find a list of variables that you might need to set in windows:
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```
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"GTA_III_RE_DIR" * path to "gta3_re" game folder usually where this plugin run.
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@ -144,17 +144,17 @@ enum Config {
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# define CHATTYSPLASH // print what the game is loading
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#endif
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#define FIX_BUGS // fix bugs in the game, TODO: use this more
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#define FIX_BUGS // fixes bugs that we've came across during reversing, TODO: use this more
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// Pad
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#define KANGAROO_CHEAT
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// Hud & radar
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#define ASPECT_RATIO_SCALE
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#define TRIANGULAR_BLIPS
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#define TRIANGULAR_BLIPS // height indicating triangular radar blips, as in VC
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// Script
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#define USE_DEBUG_SCRIPT_LOADER
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#define USE_DEBUG_SCRIPT_LOADER // makes game load main_freeroam.scm by default
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// Vehicles
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#define EXPLODING_AIRTRAIN // can blow up jumbo jet with rocket launcher
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@ -165,6 +165,6 @@ enum Config {
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// Peds
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#define ANIMATE_PED_COL_MODEL
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#define VC_PED_PORTS
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#define NEW_WALK_AROUND_ALGORITHM
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#define VC_PED_PORTS // various ports from VC's CPed, mostly subtle
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#define NEW_WALK_AROUND_ALGORITHM // to make walking around vehicles/objects less awkward
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#define CANCELLABLE_CAR_ENTER
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