Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
GameplayKit, GKRandomSource, GKRandomDistribution
Search
kichikuchi
October 23, 2015
Programming
1
280
GameplayKit, GKRandomSource, GKRandomDistribution
shibuya.swift #1 発表資料
kichikuchi
October 23, 2015
Tweet
Share
More Decks by kichikuchi
See All by kichikuchi
swiftにおける遅延評価
kichikuchi
0
2.9k
tableViewとcoolectionviewのパフォーマンスチューニング
kichikuchi
1
600
AB Tests in Mobile App
kichikuchi
1
2k
Other Decks in Programming
See All in Programming
Catch Up: Go Style Guide Update
andpad
0
250
開発組織の戦略的な役割と 設計スキル向上の効果
masuda220
PRO
9
1.5k
PHPに関数型の魂を宿す〜PHP 8.5 で実現する堅牢なコードとは〜 #phpcon_hiroshima / phpcon-hiroshima-2025
shogogg
1
330
その面倒な作業、「Dart」にやらせませんか? Flutter開発者のための業務効率化
yordgenome03
1
140
デミカツ切り抜きで面倒くさいことはPythonにやらせよう
aokswork3
0
260
CSC305 Lecture 08
javiergs
PRO
0
280
Foundation Modelsを実装日本語学習アプリを作ってみた!
hypebeans
1
130
20251016_Rails News ~Rails 8.1の足音を聴く~
morimorihoge
3
730
Google Opalで使える37のライブラリ
mickey_kubo
3
140
Go言語はstack overflowの夢を見るか?
logica0419
0
560
monorepo の Go テストをはやくした〜い!~最小の依存解決への道のり~ / faster-testing-of-monorepos
convto
2
540
なんでRustの環境構築してないのにRust製のツールが動くの? / Why Do Rust-Based Tools Run Without a Rust Environment?
ssssota
14
46k
Featured
See All Featured
Building a Modern Day E-commerce SEO Strategy
aleyda
44
7.8k
A better future with KSS
kneath
239
18k
Designing Experiences People Love
moore
142
24k
Rails Girls Zürich Keynote
gr2m
95
14k
The Language of Interfaces
destraynor
162
25k
Fireside Chat
paigeccino
41
3.7k
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
4k
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
46
7.7k
GitHub's CSS Performance
jonrohan
1032
470k
The Pragmatic Product Professional
lauravandoore
36
7k
How to Ace a Technical Interview
jacobian
280
24k
YesSQL, Process and Tooling at Scale
rocio
173
15k
Transcript
(BNFQMBZ,JUͷհ !LJDIJLVDIJ TIJCVZBTXJGU
ࣗݾհ w ٠ل ,B[VOPSJ,JLVDIJ w !LJDIJLVDIJ w J04ΤϯδχΞ w
(.0ϖύϘɿNJOOFνʔϜ w 0CKFDUJWF$ྺɿͱ
(BNFQMBZ,JUͷલʹ w 4QSJUF,JU w J04Ҏ্ʹରԠ͢ΔήʔϜ։ൃ༻ϑϨʔϜϫʔΫ w εϓϥΠτʹΞχϝʔγϣϯΛઃఆ w ཧγϛϡϨʔγϣϯʹΑΔিಥͷ࠶ݱ w
ήʔϜͷΞχϝʔγϣϯ෦Λ୲
(BNFQMBZ,JUͱ w J04͔ΒՃ͞ΕͨήʔϜͷγεςϜ෦ͷجຊ ػೳΛఏڙͯ͘͠ΕΔϑϨʔϜϫʔΫ w ήʔϜͷγεςϜ෦Λ୲
(BNFQMBZ,JUͷΫϥε w ͍͔ͭ͘ϐοΫΞοϓ ৄ͘͠SFGΛࢀর w (,3BOEPN4PVSDF w (,3BOEPN%JTUSJCVUJPO w (,.JONBY4USBUFHJTU
w (,(SBQI w (,"HFOU w (,3VMF4ZTUFN
(BNFQMBZ,JUͷΫϥε w ͍͔ͭ͘ϐοΫΞοϓ ৄ͘͠SFGΛࢀর w (,3BOEPN4PVSDF w (,3BOEPN%JTUSJCVUJPO w (,.JONBY4USBUFHJTU
w (,(SBQI w (,"HFOU w (,3VMF4ZTUFN
(,3BOEPN4PVSDF w ཚΛੜ͢Δ let rundomNumber = GKRandomSource.sharedRandom().nextInt() let rundomNumber2
= GKRandomSource.sharedRandom().nextIntWithUpperBound(6) < d > <d> w ཚੜͷΞϧΰϦζϜ w "3$
༷ʑͳੜํ๏ w (,"3$3BOEPN4PVSDF w ໌ࣔతʹTFFEΛ༩͑ͯཚΛੜ͢Δ let rundomNumber = GKARC4RandomSource.init(seed:
data).nextInt() w ผΞϧΰϦζϜͰཚΛੜ w (,-JOFBS$POHSVFOUJBM3BOEPN4PVSDF w )JHI1FSGPSNBODF -PX3BOEPNOFTT w (,.FSTFOOF5XJTUFS3BOEPN4PVSDF w )JHI3BOEPNOFTT -PX1FSGPSNBODF
ྻͷγϟοϑϧ let numbers = [Int](1...100) let shuffledNumbers = GKRandomSource.sharedRandom().arrayByShufflingObjectsInArray(number
s)
(,3BOEPN%JTUSJCVUJPO w ಛఆͷ֬ʹجͮ͘ཚΛੜͰ͖Δ w (,(BVTTJBO%JTUSJCVUJPO w (,4IV⒐FE%JTUSJCVUJPO let diceNumber
= GKRandomDistribution.d6().nextInt() let asakusaLine = GKRandomDistribution.d20().nextInt() let original = GKRandomDistribution(randomSource: GKMersenneTwisterRandomSource(), lowestValue: 10, highestValue: 20).nextInt() <d> <d> <d>
(,(BVTTJBO%JTUSJCVUJPO w ਖ਼نʹجͮ͘ཚΛੜ for (var i = 0; i
< 10000; i++) { print(GKGaussianDistribution.d20().nextInt()) }
(,4IV⒐FE%JTUSJCVUJPO w ࢦఆ͞ΕͨൣғͷࣈΛ̍ճͮͭબ͢Δ for (var i = 0; i
< 10000; i++) { print(GKShuffledDistribution.d20().nextInt()) }
ཚͷҰ୴ऴΘΓʂ
͕͜͜Πέͯͳ͍Αʂ w 0CKFDUJWF$ͷΈͰར༻Մೳͳϝιου͕ଟ
͕͜͜Πέͯͳ͍Αʂʂ w 0CKFDUJWF$ w ϝιουɿݸ w 4XJGU w ϝιουɿݸ
·ͱΊ w (BNFQMBZ,JU֓ཁ w ήʔϜγεςϜ෦ͷ࡞ʹศརͳػೳΛଟఏ ڙͯ͘͠ΕΔ w (,3BOEPN΄ʹΌΒΒ w ༷ʑͳཚΛखܰʹੜ
w ήʔϜҎ֎Ͱར༻Մೳʂ w 0CKFDUJWF$ͷΈར༻Մೳͳϝιου͕ଟ