Lmst

There's a "bug" in this code, can you find it? (I have not found the cause yet.)

I think a block based language based on a #functional #DomainSpecificLanguage such as https://diagrams.github.io/ could reflect the structure of the image more directly and thus make such bugs easier to spot. But please don't take this criticism seriously until I've built such a block based language.

I found this through the great book: "500 Lines or Less" in the chapter on Blockcode:

https://aosabook.org/en/500L/blockcode-a-visual-programming-toolkit.html

Block based program saying:

Repeat 10
Left 5 degrees
Repeat 10
Forward 10 steps
Left 14 degrees
End Repeat
Repeat 10
Right 5 degrees
Repeat 17
Forward 13 steps
Left 3 degrees
End Repeat
Back to center
Right 3 degrees
Repeat 11
Pen up
Forward 29 steps
Pen down
Right 4 degrees
Forward -24 steps
End Repeat
End Repeat
End Repeat

Output of the block based program. It is an 8 armed spiral where each arm is made up of several strands and each has one loose strand, but there's also a lose strand coming out of the center.

Part 9: Okay, champion of the delaying tactic that I am… In order to understand USD I _have_ to make a Domain Specific Language for it? Riiight?? I used the attached code to make the attached image. The files it makes are still a bit of a puddle... but they do render.

https://www.whynotestflight.com/excuses/hello-usd-part-9-parlez-vous-multiball-dsl-starts-here/

#SwiftLang #Swift #GenerativeArt #CreativeCoding #OpenUSD #ResultBuilder #3D #DomainSpecificLanguage

$CODE ``` public struct MultiBallStage { public init(count:Int) { self.count = count } let count:Int let minTranslate = -4.0 let maxTranslate = 4.0 let minRadius = 0.8 let maxRadius = 2.0 public func buildStage() -> Canvas3D { Canvas3D { //blue origin sphere Sphere(radius: 1.0).color(red: 0, green: 0, blue: 1.0) //the multi in multiball for _ in 0..<count { Sphere(radius: Double.random(in: minRadius...maxRadius)) .color( red: Double.random(in: 0...1), green: Double.random(in: 0...1), blue: Double.random(in: 0...1) ) .translateBy(Vector.random(range: minTranslate...maxTranslate)) } } } } ```$

Screenshot of randomly sized, colored and placed spheres… AGAIN. Still 13 of them. New colors and new layout.

“Reflections On The Lack Of Adoption Of Domain Specific Languages” [PDF], Federico Tomassetti & Vadim Zaytsev (http://grammarware.net/text/2020/dsl-adoption.pdf).

Via HN: https://news.ycombinator.com/item?id=25568703

#DSL #DomainSpecificLanguage #Programming #Productivity #Compilers #PLDI #Paper

#DomainSpecificLanguage

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