Glider (video game)

Glider is a Macintosh game written by John Calhoun and first published as shareware in 1988[1] under the company name Soft Dorothy Software. In 1991, a colorized version of Glider that included a level editor was published by Casady & Greene as Glider 4.0.[1] (A version of Glider 4 for the Windows platform would be released around 1994.)[1] In 1994, Casady & Greene published a further enhanced version of the game, Glider PRO, for the Mac platform.[2] When Casady & Greene went bankrupt in 2003,[3] the rights to the series reverted to the author, who opted for a period of time to give the game away on his website.[4]

Glider
Publisher(s)Soft Dorothy Software
Designer(s)John Calhoun
Platform(s)Classic Mac OS
Release1988: Classic Mac OS
Genre(s)Action
Glider 4.0
Publisher(s)Casady & Greene
Platform(s)Classic Mac OS, Windows
Release1991: Classic Mac OS
1994: Windows
Genre(s)Action
Glider PRO
Glider PRO box art
Publisher(s)Casady & Greene
Platform(s)Classic Mac OS, OS X, iOS
Release1994: Mac OS, OS X
2011: iOS (Classic)
2014: OS X (Classic)
Genre(s)Action

The object of the game is to fly a paper plane through the rooms of a house. Air currents from heat ducts and fans affect the plane's movement, while assorted household objects are usually deadly. Some rooms have special mechanics, such as the ability to slide along grease-covered surfaces. Each room is presented as a two-dimensional side view.

Calhoun wrote several other Macintosh games, such as Glypha, Pararena, and Stella Obscura[5] but Glider was the most popular.[6]

Gameplay
Glider PRO gameplay outdoors

The main challenge is to simply avoid collision with the floor, or obstacles such as furniture. Moving obstacles include bouncing basketballs, popping toast, and dripping water. Candles and other burning objects present both a handy updraft and a lethal flame. Collision with "enemy" paper planes and balloons is also fatal, but these can be shot down with the use of a bonus item: rubber bands. The other bonus items are pieces of paper (extra lives), a variety of clocks (points), and batteries (temporary increased speed.) Glider PRO includes two new bonus items: aluminum foil (shielding against in-flight collisions) and helium tanks (mutually exclusive with regard to batteries, allows the glider to float upwards).

A puzzle element is added to the gameplay in the form of switches controlling vents, lighting, home applications and even enemies.

Glider 4.0 was designed around rooms inside a house and the game's theme included such elements as claustrophobia and stormy weather. Glider PRO incorporated outdoor environments in addition to indoor environments, and had a different theme which included such things as sunny weather and the start of summer vacation.[7][1]

Houses

Levels are called "houses" in Glider parlance, though a level may contain any number of individual buildings, as well as outdoors, sewer, or other sections. Houses are entirely self-contained, and any of them is immediately available for play. Glider PRO was released with one real house called Slumberland, and one demonstration house. A later CD release of the game featured 14 further houses. Beyond this, a sizable number of houses are available for download on fan sites.

Houses can be created and edited using the built-in house editor in the "Classic" version of Glider PRO. A separate program for creating and editing houses was included with Glider 4.0.

Reception

Inside Mac Games praised Glider PRO for its entertaining and non-violent gameplay, in addition to having a two-player mode that did not require modems or a network.[9]

Legacy

Two monthly ezines, GliderTech and The Cockpit were published between 1995 and 1997 during Glider PRO's heyday. GliderTech published editorials, house reviews, house building tips and each issue was accompanied by a house or two with some examples of obstacles or techniques that could be used in house creation.

In 2006, Mark Arenz teamed up with Calhoun to construct a version of Glider PRO built in Adobe Flash.

On 20 June 2014, a version of Glider for OS X 10.7 or later, was released on the Mac App Store. This version is also available for the iPhone and iPad as Glider Classic.[10] Both are from Soft Dorothy LLC.

On 27 Jan 2016, the source code, graphics, and sound data for Glider PRO were released on GitHub with the source code being licensed under the GNU General Public License v2. In addition, the source code for Glider 4.0 was released under the MIT License.[11][12][13]

In 2020, "Jumbo Trudgeon" created a version of Glider 4.0 in HTML5 Canvas/JavaScript, based on John Calhoun's Pascal source code.[14]

References
  1. Moss, Richard (2010-11-23). "Dreaming of a Thousand-Room House: The History and Making of Glider". MacScene. Retrieved 2017-04-09.
  2. Klimas, Chris (2004-05-10). "Talking with John Calhoun (part 2)". Crunchable. Retrieved 2016-03-16.
  3. Sellers, Dennis (2003-06-30). "Casady & Greene to cease operations Thursday". MacWorld. Archived from the original on 2007-06-08.
  4. Calhoun, John. "Glider PRO". Archived from the original on 2012-05-16. Retrieved 2016-03-16.
  5. Calhoun, John (November 23, 2011). "Wayback Machine". Soft Dorothy Blog. Cite uses generic title (help)
  6. Calhoun, John (June 21, 2011). "Glider". Soft Dorothy Blog.
  7. McCornack, Jamie; et al. (1995). Tricks of the Mac Game Programming Gurus. Hayden Books. p. 713. ISBN 978-1-56830-183-9.
  8. Mark Clarkson (January 1995). "Computer Gaming World - Issue 126" (126): 182. A Spunky Little Flyer Catches Thermal In GLIDER PRO Cite journal requires |journal= (help)
  9. Myrick, Chris (December 1994). "Review: Glider Pro". Inside Mac Games (Free Preview Edition). 2 (12).
  10. Patterson, Blake (2011-09-26). "John Calhoun's Mac Classic 'Glider' Coming to iOS". Touch Arcade. Retrieved 2014-10-10.
  11. Nutt, Christian (2012-02-16). "Get a window into classic Mac dev with Glider source code". Gamasutra. Retrieved 2016-08-02.
  12. Calhoun, John (2016-01-29). "Sources for the Macintosh game, Glider PRO, written by John Calhoun and published by Casady & Green Inc". GitHub.
  13. Calhoun, John (2016-01-31). "Added legal section to read me. · softdorothy/glider_pro@49a35bb · GitHub". GitHub. Retrieved 2016-03-16.
  14. "Glider JS/HTML5 Source Code". github.com. Retrieved 2020-06-19.
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