The topic of '''coordinate systems''' is a non-trivial matter to take into account with Stunts and tools designed for it. Usually, the difference between ''right-handed'' and ''left-handed'' coordinate systems is brought as an example of how these can differ, but in reality, very seldom we'll come across a left-handed coordinate system in 3D games and tools, as the standard is very strong on favouring its right-handed counterpart.

In contrast, ''viewport-oriented'' vs. ''cartography-oriented'' coordinates do deserve a closer look, as they're both very commonly used and offer their own convenience or justifications based on practical fact as well as philosophical reasons.

== Viewport-oriented coordinates ==
This is a model by which Z is always used to refer to ''depth'' with the other coordinates accommodating to this fundamental rule. With these coordinate systems, chirality will dictate what the other axes should represent. For a right-handed coordinate system, X is typically set to grow from left to right and stand for the horizontal axis; Y will therefore have to grow from bottom to top and Z will have no choice but to grow from far to near, resulting in distance becoming a negative magnitude. This is often undesired, but we necessarily have to invert another axis to also invert this one. The alternative is to use a left-handed system, but this is almost always frowned upon much more strongly than having an inverted Z, so viewport-oriented coordinate systems will pretty much every time follow the pattern first described.

Apart from the loss of intuitiveness in the direction of growth of the axes, there is generally no difficulty in implementing this type of coordinate system in 3D environments in which all coordinates are equivalent, such as in space simulators. However, when one of the coordinates plays a slightly different role, such as when gravity comes into play, there is the inconvenience that the middle coordinate Y is of a different nature, so vertical projections into 2D, which tend to be the most common, require that we skip this middle coordinate and the resulting points have the awkward form (X, -Z) instead of the nice (X, Y) one would expect generally for 2D.

Viewport-oriented coordinates are the system used internally by Stunts and in its shape files. It is common in other 3D games, such as Minecraft, even though it also exhibits a fixed and aligned gravity field. The [[OBJ file format]] that [[Stressed]] and [[CarWorks]] can import for 3D shapes follows this structure as well.

== Cartography-oriented coordinates ==
In this system, the main rule is that the coordinates (X, Y) must be the same as the ones one would use when drawing a projected map of the environment. These coordinates usually follow the first quadrant, with X growing to the right and Y growing from top to bottom in the map. When this extends to 3D, the map typically represents land and so Y becomes depth, growing from near to far. Z, as a result, has to be used for altitude, which, when applying the right-hand-rule, means it'll grow from the ground, up.

Coordinate systems like this are very convenient for environments with gravity or any form of preferred 2D projection. They are very intuitive for these cases. However, they don't feel as natural in arbitrary spaces without a preferred axis. One would expect they'd be the most common in game engines with gravity, but this is not always so and sometimes, they can also be found in engines that don't have a preferred orientation.

Cartography-oriented coordinates are used internally by [[CarWorks]] and by [[Blender]] among other tools. Some 3D shape file formats do use them as well.

== See also ==
*[[Car model physics]]

[[Category:Modding]]

Coordinate system

2025-03-23T22:34:04Z

Cas:

Cas

2025-01-31T23:51:40Z

Cas:

{{Racers|
racername = Cas|
nationality = Cosmopolitan|
location = Córdoba, Argentina|
birthday = 14 September 1978|
image =[[Image:Casavatar.jpg|200px|center]]|
team = Rolling Stunts (2021-present) Slowdrive (2015-2020)|
firstrace = probably, Outrun (WSC)|
footnotes = ''as of January 2025''|
}}
Argentine-born racer. A veteran of the early days of [[Paleke]]'s [[WSC]], Cas is the developer of [[Bliss]], a full-featured track editor with the explicit goal of supplanting [[Track Blaster]]. His first team having been [[Slowdrive]], he is currently part of [[Rolling Stunts]].

== Early Stunts ==
Cas first met Stunts in 1993, when he had his first PC. A friend brought some games to share, including Stunts 1.0. Since then, Cas played Stunts with his friends and built tracks, more focusing on surviving the race than on winning it. Old tracks by Cas feature extremely long, hazardous paths, with confusing splits and cycles.

== As an online Stunts racer ==
Around middle 2005, Cas was part of [[La Cueva de los Clásicos]], a forum that belonged to an abandonware site. The forum was hosting a subforum dedicated to [[WSC|World Stunts Championship]], run by Paleke. Cas joined the tournament in the middle of the season and participated actively until some point of 2007.

Cas was aware of other tournaments running at that same time, including ZakStunts and even registered in one or more, but was more comfortable with WSC. His registration in Stunts forum was on 21 November 2005, but did not join ZakStunts until March 2015, according to ZakStunts site, after a long hiatus from online Stunts.

While ZakStunts reports Cas' registration in the tournament as March 2015, when he started posting regularly, Cas remembers having tried an earlier race, but maybe did not post then. However, Paleke appears as to have registered in 2007, yet, in 2005, when Cas registered in the forum, Paleke asked Zak if Cas could join his team [[Poder Sudaka]], suggesting he was already registered in ZakStunts. However, as of 15 March 2015, in his ZakStunts debut, according to the site, Cas raced as a member of the [[Slowdrive]] team, to which he was invited by [[Shoegazing Leo]].

In 2016, he organised a one-race event, [[Race For Immortality]], an OWOOT race from which the time estimations were taken for Bliss. The participants would remain forever in the list of famous racers of [[Bliss]]. After this race, he hosted his own tournament for a few months, called [[Race For Kicks]].

At the end of the 2020 season, some racers were not very active; others had decided to switch teams or to race on their own for the next season and some new racers were without a team. Activity was low in Slowdrive and the number of racers had dropped to only one ([[Afullo]]) in [[Rolling Stunts]]. Cas moved to Rolling Stunts for season 2021 with [[KyLiE]] and [[Daniel3D]].

== As a programmer ==
Since he joined the Stunts online community, Cas has been interested in Stunts internals and wanted to participate somehow in developing for it and analysing the code. He tried to disassemble a part of the game, but other community members have made much better progress with other methods. In early 2010, Cas embarked in a project called [[Vizcacha]], an attempt at verifying [[noRH]] replays. Despite some success on the computer he was testing the program on, he failed to make it universal and the project was abandoned later that year.

Cas' most significant software contribution to the Stunts community is [[Bliss|Bliss Track Editor]], which has become the most commonly used tool for track design in the community, surpassing Track Blaster Pro. Cas has said the project is designed especially for the community and that he has great respect for Track Blaster, whose author also created with the community in mind.

Following are some Stunts-related tools and pieces of software created by Cas:

* [[Bliss|Bliss Track Editor]]
* [[Race For Kicks|Race For Kicks website]]
* [[CarWorks]]
* [[Simple Garage]]
* [[Pretty Garage]]
* [[R5K engine]]
* [[EasyTour]]
* [[Vizcacha]]
* Stunts font editor
* Zakize
* RPL Keys
* Parse RPL

== Views ==
=== On free software ===
Cas is a supporter of free software and is more aligned with the views of the FSF than with those of the open source initiative, that is, freedom is a priority over convenience. Still, he is not against non-free software when its purpose is good, like freeware made by independent programmers. Unlike the free software purists, who prefer source code always, Cas defends simplicity and the idea that you should have the 'option' of compiling the source code, but not the 'obligation', so the best form to share a program is binaries with zero dependencies, ready to work, accompanied by the source code, if it's free software.

=== On styles of software development ===
Again, simplicity is the key for Cas as regards programming. A program must be made in the simplest way possible, avoiding things that could bloat it or make it slower or dependent on things that are not necessary. Cas avoids object-oriented programming and does not make his software web-based unless the purpose requires so. He considers independence from Internet. He also avoids using third-party libraries for developing. While their use can make the process of developing faster, it's only worth it when programming for money, because you need to finish as quickly as possible, but not when you seek reliability and independence.

=== On privacy ===
Cas takes privacy seriously and therefore, does not use centralised social networks and avoids spyware whenever possible, including Google and Microsoft services and the use of cell phones.

=== Cosmopolitanism ===
Having been born in Argentina, Cas prefers to call himself a cosmopolitan and has no sentiments of nationalism or patriotism.

== Colours ==
In the world of Stunts, Cas likes using yellow or gold colour, is possible, accompanied by black, which are the colours of Stunts. He also likes the contrast between these colours and the association yellow has in some cultures with intelligence, science and rational thinking (as opposed to superstition). For this meaning, he sometimes accompanies yellow with burgundy, where the latter represents wisdom.

[[Category:Racers]]
[[Category:Modders]]

Victor Narl

2025-01-31T23:51:10Z

Cas:

Victor Narl

2025-01-31T23:47:42Z

Cas: Created page with "''Victor Narl'' is a German racer best known in the Stunts world for his participation in DOSReloaded.de and Race For Kicks. Having joined the latter during the late 2..."

''Victor Narl'' is a German racer best known in the Stunts world for his participation in [[DOSReloaded.de]] and [[Race For Kicks]]. Having joined the latter during the late 2024 season, he's consistently demonstrated great skill in [[OWOOT]] racing, achieving podium positions with ease. Victor frequently contributes with ideas and is active in the R4K chat room.

== Participation in competitions ==
=== DOSReloaded.de ===
=== Race For Kicks ===
=== ZakStunts ===

Pretty Garage

2025-01-18T19:52:07Z

Cas: /* Filters */

[[image:pgscreenshot.png|320px|right|thumb|Pretty Garage v1.1]]
''Pretty Garage'' is a GUI-base garage tool for Stunts developed by [[Cas]] aimed at providing a comfortable experience and ease of use. The project was started on 19 January 2024 and quickly reached version 1. By early March in the same year, it was already capable of accessing online repositories, a feature still unavailable to its CLI-oriented counterpart [[Simple Garage]], whilst the latter allows for a more powerful set of commands and filtering options.

Pretty Garage can render car images on-the-fly, which makes it easier to identify cars and has been made with the idea of eventual compatibility with the [[Car Archive]] project, led by [[dreadnaut]].

== Garage handling ==
Like Simple Garage, Pretty Garage supports the definition of one or more garage directories, besides Stunts' main path, which is also used in a similar way. Cars can be exchanged between these garages rather freely. Stunts' path only differs in that it cannot hold more than 32 cars and one car can be defined as default (normally, the Countach) and cannot be moved out of the directory. However, these rules can be overridden, as most actions in the program have the option of becoming forceful if the ''shift'' key is being held down.

== Junkyard ==
The user can define one garage to be the ''junkyard''. If a junkyard is defined, attempting to delete one or more cars will immediately send them to that directory without confirmation, unless they are being deleted from the junkyard itself. This is similar to the behaviour of trash cans in desktop OSs. In Pretty Garage, the first garage with a name that begins with "junk" (case insensitive) is set to be the junkyard, if it exists. Without a junkyard, the user will always be prompted for confirmation when deletion is attempted and if approved, it will be permanent.

== Groups ==
Groups in Pretty Garage work in the same way as in Simple Garage. They are lists of car IDs. Offline (normal) groups can be modified freely and while browsing a group, you're able to see where the cars in the list are located, as long as they are found locally in Stunts or any of the defined garages.

== Online repositories ==
The program supports two forms of online lists: repository indices and online groups. A repository index is a file located somewhere online that contains a list of car names, IDs and where to find them. They don't have to necessarily be hosted at the same location as the index, so the actual "repository" isn't the index itself. In fact, the same index could link to several sources.

An online group is also a file found online, but it only contains a list of car IDs. Pretty Garage will treat it as a read-only group. These are useful, for example, if a tournament wants to publish the list of allowed cars for the season or somebody would like to issue the list cars they're maintaining, but without issuing sources. Pretty Garage will only be able to retrieve these cars if they are found locally.

To download lists and cars, Pretty Garage relies on ''curl'', as it does not include third-party libraries for HTTPS communication. If curl is not installed on your system, the program will still work, but you won't be able to download any files.

== Filters ==
New to Pretty Garage in version 1.2 is the capability of applying filters to lists. You can filter cars by name, ID or author. Filters require the use of commands and the command line can be activated by pressing ''Enter''. The ''select'' command allows for simple or combined filters. For example:

''select Porsche*,Ferrari*''

will highlight all cars in the list that have their names beginning with "Porsche" or "Ferrari", while:

''select dtm''

will select all cars containing the string "dtm". This is the same as a ''select *dtm*'' command, as wildcards on both sides are assumed. When filtering by author or ID, you need to specify this:

''select id pmin,jagu,coun''

''select author Duplode,Alan''

The ''select'' command will start from scratch with each filter, but you can use the ''and'' and ''or'' filter operators for cumulative filtering:

''or covertte''

will add to the current selection those cars that contain the word "corvette" in their name, while:

''and author Overdrijf''

will deselect all cars whose author is not ''Overdrijf''. All filters are case-insensitive. The ''not'' command is also available and it inverts the current selection.

== Differences from Simple Garage ==
Besides the fundamental fact that Pretty Garage is a GUI program and Simple Garage is CLI-based, there are a number of internal details that have a different design in these two tools and may not be apparent at first sight.

* By default, the Countach cannot be removed from Stunts' directory in both programs, but the underlying reason is very different. In Simple Garage, there's a list of locked cars which acts like a group. Cars in the locked list cannot be moved from their current location and you can have none to many locked cars. In Pretty Garage, only one car ID can be defined as default and the default car cannot be removed from Stunts' directory. Yet, it can be moved between other garage directories. If you set the default car ID to something not found in Stunts, all cars present can be moved. Only one car can be default.
* In Pretty Garage, garage directories are a lot more like one another than in Simple Garage. Many commands in Simple Garage assume a main garage, so moving cars to other garages can make them less accessible. In Pretty Garage, all garages can be handled the same way. The only special garage is the junkyard, but in every aspect that does not involve car deletion, it acts the same way too.
* As of version 1.1 of Pretty Garage, online features are exclusive to it and Simple Garage has no online access.
* Starting version 1.2, Pretty Garage offers filtering commands, but they are not the same as those in Simple Garage. You can combine filters by applying them in succession with an ''or'' or ''and'' operator.

== Links and getting Pretty Garage ==
You can find Pretty Garage at:
* [http://casrepo.org Cas' Repo]
* [https://www.raceforkicks.com/projects/pgarage.php Pretty Garage page at Race For Kicks]
* [https://forum.stunts.hu/index.php?topic=4237.msg92336#msg92336 Stunts Forum]

[[Category:Modding]]
[[Category:Tools]]

Pretty Garage

2025-01-18T19:51:35Z

Cas:

[[image:pgscreenshot.png|320px|right|thumb|Pretty Garage v1.1]]
''Pretty Garage'' is a GUI-base garage tool for Stunts developed by [[Cas]] aimed at providing a comfortable experience and ease of use. The project was started on 19 January 2024 and quickly reached version 1. By early March in the same year, it was already capable of accessing online repositories, a feature still unavailable to its CLI-oriented counterpart [[Simple Garage]], whilst the latter allows for a more powerful set of commands and filtering options.

Pretty Garage can render car images on-the-fly, which makes it easier to identify cars and has been made with the idea of eventual compatibility with the [[Car Archive]] project, led by [[dreadnaut]].

== Garage handling ==
Like Simple Garage, Pretty Garage supports the definition of one or more garage directories, besides Stunts' main path, which is also used in a similar way. Cars can be exchanged between these garages rather freely. Stunts' path only differs in that it cannot hold more than 32 cars and one car can be defined as default (normally, the Countach) and cannot be moved out of the directory. However, these rules can be overridden, as most actions in the program have the option of becoming forceful if the ''shift'' key is being held down.

== Junkyard ==
The user can define one garage to be the ''junkyard''. If a junkyard is defined, attempting to delete one or more cars will immediately send them to that directory without confirmation, unless they are being deleted from the junkyard itself. This is similar to the behaviour of trash cans in desktop OSs. In Pretty Garage, the first garage with a name that begins with "junk" (case insensitive) is set to be the junkyard, if it exists. Without a junkyard, the user will always be prompted for confirmation when deletion is attempted and if approved, it will be permanent.

== Groups ==
Groups in Pretty Garage work in the same way as in Simple Garage. They are lists of car IDs. Offline (normal) groups can be modified freely and while browsing a group, you're able to see where the cars in the list are located, as long as they are found locally in Stunts or any of the defined garages.

== Online repositories ==
The program supports two forms of online lists: repository indices and online groups. A repository index is a file located somewhere online that contains a list of car names, IDs and where to find them. They don't have to necessarily be hosted at the same location as the index, so the actual "repository" isn't the index itself. In fact, the same index could link to several sources.

An online group is also a file found online, but it only contains a list of car IDs. Pretty Garage will treat it as a read-only group. These are useful, for example, if a tournament wants to publish the list of allowed cars for the season or somebody would like to issue the list cars they're maintaining, but without issuing sources. Pretty Garage will only be able to retrieve these cars if they are found locally.

To download lists and cars, Pretty Garage relies on ''curl'', as it does not include third-party libraries for HTTPS communication. If curl is not installed on your system, the program will still work, but you won't be able to download any files.

== Filters ==
New to Pretty Garage in version 1.2 is the capability of applying filters to lists. You can filter cars by name, ID or author. Filters require the use of commands and the command line can be activated by pressing ''Enter''. The ''select'' command allows for simple or combined filters. For example:

''select Porsche*,Ferrari*''

will highlight all cars in the list that have their names beginning with "Porsche" or "Ferrari", while:

''select dtm''

will select all cars containing the string "dtm". This is the same as a ''select *dtm*'' command, as wildcards on both sides are assumed. When filtering by author or ID, you need to specify this:

''select id pmin,jagu,coun''
''select author Duplode,Alan''

The ''select'' command will start from scratch with each filter, but you can use the ''and'' and ''or'' filter operators for cumulative filtering:

''or covertte''

will add to the current selection those cars that contain the word "corvette" in their name, while:

''and author Overdrijf''

will deselect all cars whose author is not ''Overdrijf''. All filters are case-insensitive. The ''not'' command is also available and it inverts the current selection.

== Differences from Simple Garage ==
Besides the fundamental fact that Pretty Garage is a GUI program and Simple Garage is CLI-based, there are a number of internal details that have a different design in these two tools and may not be apparent at first sight.

* By default, the Countach cannot be removed from Stunts' directory in both programs, but the underlying reason is very different. In Simple Garage, there's a list of locked cars which acts like a group. Cars in the locked list cannot be moved from their current location and you can have none to many locked cars. In Pretty Garage, only one car ID can be defined as default and the default car cannot be removed from Stunts' directory. Yet, it can be moved between other garage directories. If you set the default car ID to something not found in Stunts, all cars present can be moved. Only one car can be default.
* In Pretty Garage, garage directories are a lot more like one another than in Simple Garage. Many commands in Simple Garage assume a main garage, so moving cars to other garages can make them less accessible. In Pretty Garage, all garages can be handled the same way. The only special garage is the junkyard, but in every aspect that does not involve car deletion, it acts the same way too.
* As of version 1.1 of Pretty Garage, online features are exclusive to it and Simple Garage has no online access.
* Starting version 1.2, Pretty Garage offers filtering commands, but they are not the same as those in Simple Garage. You can combine filters by applying them in succession with an ''or'' or ''and'' operator.

== Links and getting Pretty Garage ==
You can find Pretty Garage at:
* [http://casrepo.org Cas' Repo]
* [https://www.raceforkicks.com/projects/pgarage.php Pretty Garage page at Race For Kicks]
* [https://forum.stunts.hu/index.php?topic=4237.msg92336#msg92336 Stunts Forum]

[[Category:Modding]]
[[Category:Tools]]