Editing Project Slippi

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{{disambig2|the Melee netcode tool|character from the Star Fox series|Slippy Toad}}
[[File:ProjectSlippi.png|thumb|250px|Project Slippi logo]]
'''Project Slippi''' is an ongoing project designed for emulators like [[Dolphin]] that aims to give ''[[Super Smash Bros. Melee]]'' several major quality of life features originally not present in the game. As of June 2020, the features currently included are automatically saved replays, live match mirroring, [[Wikipedia:GGPO|rollback netcode]], and integrated online matchmaking. The project was created and is being led by [https://twitter.com/Fizzi36 Fizzi] with major contributions from [https://twitter.com/UnclePunch_ UnclePunch], [https://twitter.com/xMetonym Nikki], and [https://twitter.com/eigenform metaconstruct].

==Components==
*'''Slippi Launcher''': This launcher features the ability to open and play .slp replay files. 
*'''Slippi Online''': This is a custom version of [[Dolphin]] that allows for online netplay featuring rollback netcode, integrated matchmaking, and automatically saved replays.
*'''Nintendont-Slippi''': This is a custom build of [https://github.com/FIX94/Nintendont Nintendont] that features support for writing replay files onto SD cards or USB flash drives, transferring live-replays over network, and toggling quality of life changes. The network transferring feature allows for live mirroring between the console and Dolphin which is suitable for high quality ''Melee'' streaming. 

===Unofficial components===
A number of unofficial Slippi-compatible projects have been created by the community for various purposes.

*'''Lylat''': A [https://lylat.gg/ project] that enables the use of compatible [[gameplay modification]]s with Slippi Online. Currently supported modifications include The Akaneia Build, Beyond Melee, and Melee 1.03.
*'''Project Clippi''': A [https://github.com/vinceau/project-clippi toolkit] that allows users to automatically execute actions when an in-game event occurs. The most notable use of this is the ability to automatically clip or record combos or other specific interactions as soon as they occur. 
*'''Stats Graphics Generator''': A [https://vince.id.au/slippi-stats/ website] that automatically generates a graphic detailing the stats and results of an inputted .slp file.
*'''Gecko Codes''': Various codes that can be inputted into the "Cheat Code Editor" section of Dolphin and Slippi that add features and manipulate the code of compatible games. Notable codes for ''Melee'' and ''Brawl'' include exposing stage geometry, visual and audible indicators for specific actions, and adding and removing certain glitches and exploits. There are also general quality of life codes like improved resolution and audio quality and the [[Universal Controller Fix]].
*'''Diet Melee''': A [https://diet.melee.tv/ gameplay modification] of Melee designed to make the game run more efficiently with Slippi on more modest configurations. It greatly reduces the polygon count of every tournament legal stages, replace characters models with their low-poly version, and deletes from the game every non-essential file, like trophies, non-legal stages and all single player content. Three builds of the mod are available : the standard ''Diet Melee Classic'', the SSB64-styled ''Diet Melee 64'' that uses models and textures resembling [[Super Smash Bros.]], and the even more stripped-down ''Diet Crystal Melee'' aiming for maximum visual clarity with minimalist models and textures.
<gallery>
Diet_Melee_Classic_Example.png|Diet Melee Classic on [[Final Destination (SSBM)|Final Destination]].
Diet_Melee_64_Example.png|Diet Melee 64 on [[Yoshi's Story]].
Diet_Crystal_Melee_Example.png|Diet Crystal Melee on [[Fountain of Dreams]]. 
</gallery>

==Features==
*'''Replays''': Project Slippi automatically generates replays after any match is played. These replays are saved as .slp files which can be opened on computers using the Slippi Launcher. Detailed statistics on the match, such as the amount of neutral wins, kills, and damage dealt, are included alongside the replays. 
*'''Live mirroring''': Nintendont-Slippi features the ability to accurately mirror console inputs onto Dolphin. This feature allows for streams to show high quality footage from Dolphin rather than from the actual console. This feature has seen use at many major tournaments including {{Trn|Pound 2019}}, {{Trn|The Big House 9}}, and {{Trn|Smash Summit 9}}.
*'''Rollback netcode''': The dolphin build of Slippi introduces rollback netcode into the game. This allows for games to occur between large distances with almost zero latency.
*'''Integrated matchmaking''': The dolphin build of Slippi also introduces integrated matchmaking. Players are able to queue up against other random players without needing any external applications or websites.

==History==
The project was publicly launched on June 18th, 2018, but had been in a "private beta" since February of that year. The initial release featured automatically saved replays and detailed match statistics. Prior to this launch, the statistics system was previously used at {{Trn|HTC Throwdown}}, {{Trn|Smash Summit 7}}, and {{Trn|Smash Rivalries}} for use on stream.<ref>[https://twitter.com/Fizzi36/status/1016780675016544262?s=20 Pre-launch use]</ref><ref name=Public>{{cite web |url=https://medium.com/project-slippi/project-public-release-4080c81d7205|title="Project Slippi Public Release", June 17th, 2018}}</ref> On September 29th, 2018, [[Smashladder]] announced that Project Slippi had become the community's main Dolphin build.<ref>[https://www.smashladder.com/blogs/view/27dt/2018-09-29/replays-are-coming-to-smashladder "Replays are coming to SmashLadder!", September 29th, 2018]</ref>

On January 13th, 2019, a stream would be held announcing a feature that enabled live mirroring from console to Dolphin.<ref>[https://twitter.com/Fizzi36/status/1084719763891343361 Mirroring announcement]</ref> This would allow for high quality streaming of the game with no additional hardware required. This feature was in "beta" and accessible to Patreon supporters until March 10th when it was released to the public.<ref>[https://medium.com/project-slippi/mirroring-beta-for-patrons-33c679dd73bd "Mirroring Beta for Patrons", January 22nd, 2019 (Updated March 10th, 2019)]</ref> On February 22nd, {{Trn|Phoenix Blue 2}} would become the first tournament to use Project Slippi for high quality streaming of the event.<ref>[https://twitter.com/OXY_Crimson/status/1098995046647353344 Phoenix Blue 2 announcement]</ref> On March 9th, {{Trn|The Gang Steals The Script}} would become the first North American tournament to use Project Slippi. Every tournament setup featured the ability to automatically save replays and the stream also utilized Slippi for data analysis and high quality streaming.<ref>[https://twitter.com/EndGame_TV/status/1103045712755941377 The Gang Steals The Script announcement]</ref> On the same day, slippi.gg would be launched. This website includes downloads of the project as well as nearly every replay from The Gang Steals The Script.<ref>[https://twitter.com/Fizzi36/status/1104563863998136320 slippi.gg launched]</ref> From this point forward, every future major tournament utilizing Slippi would now appear on the website. On April 20th, 2019, a feature would be added to the website that would allow users to preview games via a lightweight in-browser visualizer designed by [https://twitter.com/schmooDev Will Blackett].<ref>[https://twitter.com/Fizzi36/status/1119749386798424064 Lightweight visualizer announcement]</ref> On November 27th, Fizzi would announce that he would begin working on Slippi full-time.<ref>[https://twitter.com/Fizzi36/status/1199734629252653057 Fizzi begins working on the project full-time]</ref>

On June 22nd, 2020, an update was released for the custom Slippi Dolphin build that would introduce [[Wikipedia:GGPO|rollback netcode]] and integrated matchmaking into the game.<ref>[https://twitter.com/Fizzi36/status/1275096470765490176 Rollback netcode announcement]</ref> This became a major breakthrough in the competitive ''[[Super Smash Bros. Melee]]'' community as distance-based latency would no longer be an issue. Due to the [[COVID-19]] pandemic, most in-person tournament activity had been completely shut down since March 2020, and Project Slippi became the dominant method of playing ''Melee'', with major tournament organizers hosting events using the new updates. Project Slippi has since been credited with bringing new players into the competitive ''Melee'' scene, due to its ease of access and ability to provide practice against anyone online. This widespread adoption became an issue for [[The Big House Online]], who were essentially forced to use the software to play ''Melee'' in an online environment. [[Nintendo]] then sent a cease and desist letter to the event claiming that Project Slippi is infringing on their copyrights. While Nintendo has yet to actually prove Project Slippi infringes their copyright in a court of law, their action was enough to cancel the entire event, which in turn started the #FreeMelee movement.

On January 19th, 2021, v2.2.4 was released<ref>{{cite web|url=https://www.reddit.com/r/SSBM/comments/l0v6gn/slippi_dolphin_v224_is_now_out_unranked_mmr_for/|title=Slippi Dolphin v2.2.4 is now out! Unranked MMR for new players plus some prep for 2.3.0!}}</ref>, introducing a hidden match-making rating (MMR) into random unrated matches. The update restricted the search range for players with low MMR dramatically while maintaining a wide search range for players of average skill or better.<ref>[https://twitter.com/Fizzi36/status/1360342298739937280 MMR search range details]</ref> This was aimed at creating more balanced matchups at lower levels of play, preventing newer players from receiving crushing defeats against more experienced players, and increasing new player retention levels.

==References==
{{reflist}}

==External links==
*[https://slippi.gg/ Official website]
*[https://github.com/project-slippi Github repository]
*[https://twitter.com/ProjectSlippi Twitter account]
*[https://medium.com/project-slippi Blog]
*[https://discord.gg/YRzDxT5 Discord server]

{{Significant events}}

[[Category:Mods]]
[[Category:Competitive play]]
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