StepMania

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StepMania
StepMania-logo.png
StepMania 5.0.5 Demo.jpg
StepMania 5.0
Original author(s) Chris Danford
Developer(s) Chris Danford, Glenn Maynard etc.
Initial release 2001
Stable release 5.0.8 / May 9, 2015; 57 days ago (2015-05-09)
Preview release 5.0.7 RC / March 9, 2015; 3 months ago (2015-03-09)
Written in C++, Assembly, Lua
Operating system Cross-platform
Type Rhythm video game
License MIT License
Website http://www.stepmania.com/

StepMania is a cross-platform rhythm video game and engine. It was originally developed as a simulator of Konami's arcade game series Dance Dance Revolution, and has since evolved into an extensible rhythm game engine capable of supporting a variety of rhythm-based game types. Released under the MIT License, StepMania is open source free software.[1]

Several video game series, including In the Groove and Pump It Up Pro use StepMania as their game engine. StepMania was included in a video game exhibition at New York's Museum of the Moving Image in 2005.[2]

Development[edit]

StepMania was originally developed as an open source clone of Konami's arcade game series Dance Dance Revolution (DDR). During the first three major versions, the Interface was based heavily on DDR's. New versions were released relatively quickly at first, culminating in version 3.9 in 2003. In 2010, after almost 7 years of work without a stable release, StepMania creator Chris Danford forked a 2006 build of StepMania,[3] paused development on the bleeding edge branch, and labeled the new branch StepMania 4 beta. A separate development team called the Spinal Shark Collective forked the bleeding edge branch and continued work on it, branding it sm-ssc. In mid-2011, sm-ssc gained official status and was renamed StepMania 5.0. The version 4.0 tree was later abandoned.

Gameplay[edit]

The primary game type features the following game play: as arrows scroll upwards on the screen, they meet a normally stationary set of target arrows. When they do, the player presses the corresponding arrows on his or her keyboard or dance mat. The moving arrows meet the targets based on the beat of the song. The game is scored based upon how accurately the player can trigger the arrows in time to the beat of the song. The player's efforts are awarded by letter grades and a number score that tell him/her how well they have done. An award of AAAA (quadruple A) is the highest possible award available on a standard installation and indicates that a player has triggered all arrows with "Flawless" timing (within 0.0225 seconds under official settings) and avoided all mines and completed all hold (freeze) arrows. An E indicates failure for a player to survive the length of the song without completely draining his/her life bar. Default scoring and grading for StepMania is similar to scoring in Dance Dance Revolution; however, timing and scoring settings can easily be changed.

StepMania allows for several input options. Specialized adapters that connect console peripherals like PS2 and Xbox controllers or dance pads to one's computer can be used. Alternatively, the keyboard can be used to tap out the rhythms using arrow or other keys. Many song charts designed for keyboard are unable to be passed using a pad. In addition, the game possesses the capability to emulate other music games, such as Beatmania itself, o2Jam and DJMAX's 7-key arrangement, Pump It Up and Techno Motion - scoring however, remains identical to DDR-style play by default.

Features[edit]

  • Custom Songs ("Stepfiles") also known as "Simfiles": StepMania allows users to create their own custom dance patterns to any song in .ogg or .mp3 format. The program includes a comprehensive Step editor to aid the creation of these stepfiles. Many Simfile websites exist where users share and distributed Simfiles for songs. Additionally, official DDR and In The Groove songs with their original steps are commonly available for StepMania.
  • Background animations: Support for many types of animations behind the arrows onscreen, including sprite-based animation sequences, a single full-motion video or multiple FMV visualization overlays but are disabled if the song contains exclusive video.
  • Modifiers: Visual mods that affect the scroll of arrows and either increase or decrease difficulty. StepMania includes multiple modifiers featured in Dance Dance Revolution as well as dozens of additional modifiers created exclusively for StepMania.
  • Multiple arrow types:
  • Mines ("Shock" arrows in DDR X): An object that scrolls onto the screen along with the arrows. If a player triggers the mines, they will be penalized by having their dance gauge reduced. However, the mines in StepMania are different from the Shock Arrows in DDR X in that the latter also turns the notes invisible for a brief period of time and breaks the current combo chain that the player had going. This step type was developed for the StepMania-based arcade game In The Groove, and was ported into StepMania itself during development of that title. There are several variations of these objects that effect scoring in different ways.
  • Holds (also called Freeze Arrows): A long arrow that requires you to keep your feet or finger on the corresponding panel for its duration.
  • Rolls: A special hold arrow which requires a rapid tap on to keep alive. This step type was developed for the sequel to In The Groove - In the Groove 2.
  • Lift: a special type of arrow (colored Gray by default) which requires the key (or panel) to be held down before the note passes and released when the note passes the target arrows. This is different from freeze arrows in that the timing of the press is not important, only when the note is released.
  • Real-time lyrics, which display on the opposite side of the screen for stepfiles that have accompanying lyric data.
  • Custom themes: users can create their own skins for Stepmania. StepMania themes can vary from simple replacement of images to drastic changes that can be implemented by scripting its Lua backend.
  • Dancing characters: 2-dimensional and 3-dimensional character models that dance in the background according to a pre-defined routine.
  • Infinite BPMs: an official implementation in StepMania 4 of a bug in the 3.9 series that could be exploited to create "warps" in stepcharts using negative speeds.
  • Network play: support for lobby-based online play, dubbed StepMania Online. Typically, users connect through the StepMania Online[4] centralized server. Support for network play was added to the StepMania tree in 2005 and is available in all later builds. All players must have a copy of the song chosen by the host in order to play.

Availability[edit]

StepMania-based arcade machine in a Chinese amusement park

Some version of StepMania will run on most common operating systems (Microsoft Windows 98/Me/2000/XP/Vista/7/8, GNU/Linux, FreeBSD, Mac OS X), as well as the Xbox console. It has also been used as the base engine in a variety of free software and proprietary products for various platforms.

Use in products[edit]

Several StepMania-based commercial games have been released due to its open nature:

  • In The Groove (ITG) is an arcade dance game series developed by the core StepMania developers, and is based on 3.9 and a CVS build of StepMania often known as version 3.95. To prevent unauthorized copying, StepMania was re-licensed under a more permissive license (changed from GPL to the MIT License with the agreement of all coders, in exchange for their names appearing on the ITG credits screen), not requiring source code to be published on derivative works, and thus allowing ITG's copy control to remain proprietary and closed source.
  • Pump it Up Pro is a spinoff of the Pump it Up series headed by former ITG developers and musicians. The game utilizes a build of StepMania 4 for its engine, which also led to improved Pump support in StepMania itself.
  • Pump it Up Infinity is another spinoff of the Pump it Up series aimed primarily at North American audiences. Unlike the Pro series, however, it is managed directly by Andamiro. The game is based on StepMania 5.

StepMix[edit]

StepMania developers conducted StepMix contest for step builders to create stepcharts/stepfiles that can be played using StepMania. StepMix 1, 2, 3, and 4 were run successfully. Participants need to have a song to be used in the stepchart/stepfile. The song must be under a compatible license for distribution or be authorized for use in StepMix 4, or the entry is automatically disqualified.[5] Additionally, if the graphics used in the entry are found to have been copied from another artist and used without their authorization (as happened once in StepMix 2[6][7]), the entry may be disqualified.

The scoring is determined by the overall quality of the song, steps and graphics.[8]

See also[edit]

References[edit]

External links[edit]