Swift Playgroundsでタートル・グラフィックスしよう！

iOSDC Japan 2019 での発表スライドです。
https://fortee.jp/iosdc-japan-2019/proposal/3c2b7111-cdf3-43bb-81b8-446424b3f25c

1. 4XJGU
   1MBZHSPVOETͰ
   λʔτϧɾάϥϑ ΟοΫε͠Α͏ 
   J04%$
   
2. !ࣗݾ঺հ
3. 5PNPLJ
   ,PCBZBTIJ 
   J1IPOF
   (ͷ೔ຊ্཮௚ޙʹ
 ɹɹɹɹ
   J1IPOFΞϓϦ։ൃΛ࢝ΊΔ
   
   ϑΣϯϦϧגࣜձࣾʹೖࣾ
 ɹɹɹɹ
   ໊ݹ԰ࢧࣾͰΞϓϦͷڞಉ։ൃʹैࣄ
   
   גࣜձࣾελϝϯ ʢ໊ݹ԰ʣ ʹೖࣾ
 ɹɹɹɹ
   ૑ۀࣄۀ56/"(ͷΞϓϦ։ൃʹैࣄ 5XJUUFS(JU)VC
   !UFNPLJ
4. ໊ݹ԰͔Βདྷ·ͨ͠
5. ໊ݹ԰ۙล͔Β
   དྷͨਓ͸͍·͔͢ʁ#
6. IUUQUBLBOPSJEBZPCMPHTIJOPCJKQ&OUSZ <ग़య>
   Πϯλʔωοτք۾ͷࣄΛௐ΂Δ͓
   !UBLBOPSJ ೥
7. IUUQTDUZPIBUFOBCMPHDPNFOUSZOBHPZB@JU@NBQ@ <ग़య>
   $ZDMF5FDI-PH
   αΠΫϧςοΫϩά
   !D@UZP ೥
8. גࣜձࣾελϝϯ w૑ۀɿ೥݄
   w໊ࣾɿ4UBS
   .FNCFST
   wਓ਺ɿ໊ʙ
   wຊࣾɿ໊ݹ԰
   ُౡ
   
   wࢧࣾɿ౦ژ
   େࡕ
   ෱Ԭ
   wࣄۀɿ56/"(
11. 4XJGU
    1MBZHSPVOETͰ
    λʔτϧɾάϥϑ ΟοΫε͠Α͏ 
    J04%$
    
12. λʔτϧɾάϥϑ ΟοΫε
13. λʔτ ϧɾάϥϑ Ο οΫε wΛૢͬͯ%άϥϑ Ο οΫεΛੜ੒͢Δ
    wڭҭ༻ϓϩάϥϛϯάݴޠ-PHPͷػೳ
    w.*5໊༪ڭतγʔϞΞ ɾ ύύʔ τ͕։ൃ
14. Ұൠతͳ%άϥϑ Ο οΫε
    ௗͷࢹ఺Ͱඳ͘
16. ӈʹϚεɺ্ʹϚε
17. addLine(to:(1,3)) (0,0) (1,3)
18. λʔτϧɾάϥϑ Ο οΫε
    ஬ͷࢹ఺Ͱඳ͘
19. λʔτϧɾάϥϑ Ο οΫε
    ُͷࢹ఺Ͱඳ͘
21. ӈʹ˃ ճసɺલʹา
22. right(20) forward(5)
23. ਖ਼ࡾ֯ܗΛඳ͘ʹ͸ʁ
24. Ұൠతͳ%άϥϑ Ο οΫε (0,0) addLine(to:(5,?)) (5,?) addLine(to:(10,0)) (10,0) ਺ֶͷ஌͕ࣝඞཁ
    ʢ௚ަ࠲ඪܥɾࡾ֯ؔ਺ʣ
25. λʔτϧɾάϥϑ Ο οΫε forward(10) left(120) forward(10) left(120) forward(10) ࣗવͳ܁Γฦ͠Ͱඳ͘
    ճసͷ਺ࣈͷҙຯ͸ʁ
26. λʔτϧɾάϥϑ Ο οΫε left(100) left(140) left(120) ʮ਺ࣈΛม͑ͯ֬ೝʯ ͷ܁Γฦ͠Ͱֶ΂Δ
27. λʔτ ϧɾάϥϑ Ο οΫεͷಛ௃ w໋ྩ͸ݱࡏͷঢ়ଶ͔Β૬ରతʹ࡞༻
    w໋ྩऀ͸ͱࣗݾͱΛҰମԽͤͯ͞ૢ࡞
    w໋ྩͷ݁Ռ͕ଈ࠲ʹࢹ֮తʹಘΒΕΔ
    wΤϥʔݪҼΛߟ͑ͯϦτϥΠͷ܁Γฦ͠
 σόοά ʹΑΓֶश͢Δ
28. λʔτ ϧɾάϥϑ Ο οΫεͱ ͷग़ձ͍
29. ग़ձ͍ wதֶ೥࣌ ೥ ͷίϯϐϡʔλͷतۀ
    w෋࢜௨ͷ'.
    3ͱ͍͏.4%04౥ࡌͷ ύʔιφϧίϯϐϡʔλΛ࢖༻
    wϩΰϥΠλʔͱ͍͏ιϑτͰλΠϐϯά ͱ-PHPʹΑΔϓϩάϥϛϯάΛֶश
30. ੒ޭମݧ wλʔτϧɾάϥϑΟοΫεָ͍͠ʂ
    wເதʹͳͬͯεΩʔδϟϯϓͷήʔϜ Λ࡞ͬͨΒΫϥεϝΠτ͔Β൓ڹ
    wॳͷϓϩάϥϛϯάͰͷ੒ޭମݧ
31. λʔτ ϧɾάϥϑ Ο οΫεͷ ࢈Έͷ਌
32. γʔϞΞɾύύʔτ wࣇಐ৺ཧֶऀϐΞδΣͱ
 ࢠڙͷ஌ೳൃୡΛݚڀ
    wߏ੒ओٛڭҭΛ໨తͱͨ͠
 ϓϩάϥϛϯάݴޠ-PHPΛ։ൃ
    wϨΰͱ.*/%
    4503.Λ։ൃ
    w45&.ڭҭͷݪ఺ ग़య
    OFXTNJUFEV
33. ग़య
    DZCFSOFUJD[PPDPN
34. γʔϞΞɾύύʔτͷ
    Өڹ
35. ΞϥϯɾέΠ wύύʔτͷݩͰ-PHPΛֶͿ
    w1"3$ʹͯࢠͲ΋Ͱ΋࢖͑Δ
 ཧ૝୺຤ ʮ%ZOBCPPLʯ Λߏ૝
    w࢑ఆ%ZOBCPPLʢ`೥୅ͷࢼ࡞ʣ
 "MUP ϋʔυ ͱ4NBMMUBML ιϑτ
    wύʔιφϧίϯϐϡʔλͷ෕ ग़య
    KBXJLJQFEJBPSH
36. ग़య
    FOXJLJQFEJBPSH
37. εςΟʔϒɾδϣϒζ w1"3$Ͱݟͨ"MUPʹিܸΛड͚ ։ൃதͷ-JTBʹ(6*Λ౥ࡌ
    w-JTBϓϩδΣΫτͷޙ
 .BDJOUPTIΛ։ൃ
    wͦͷੜ֔ͷऴ൫ʹൃදͨ͠
 ॳ୅J1BE͸%ZOBCPPLʜ ग़య
    KBXJLJQFEJBPSH
38. Կͱͳ͘
    ๻ͨͪ΁ͷܨ͕ΓΛ
    ײ͡·͢ΑͶʁ
39. ϓϩάϥϛϯάݴޠ
    -PHP
40. ϓϩάϥϛϯάݴޠ-PHP w೥ʹߏ੒ओֶٛशΛ໨తʹ։ൃ
    w-JTQʹӨڹΛड͚ͨؔ਺ܕݴޠ
    wܕએݴෆཁɺ࠶ؼతఆ͕ٛՄೳ
41. ਖ਼ࡾ֯ܗΛඳ͘ϓϩγʔδϟ to Triangle :x repeat 3 [ forward :x right 120 ] end
42. ࣮૷ w"QQMF
    -PHP
    "QQMF
    **༻
    w"$4-PHP
    GPS
    .BD
    04
    9
    w-PHP
    8SJUFS
    8JO
     IUUQTXXXBMBODTNJUIDPVLMPHP IUUQXXXMPHPDPNKQ
43. ϓϩάϥϛϯάݴޠ
    -PHPͷӨڹ
44. -PHPͷӨڹ w-PHP͸ʹ໋ྩͯ͠ૢ࡞͢Δ
    wΞϥϯɾέΠ͕ΦϒδΣΫτࢦ޲
 ͱ͍͏ண૝ΛಘΔ͖͔͚ͬ
    w७ਮΦϒδΣΫτࢦ޲ݴޠ4NBMMUBML
45. -JTQ -PHP 4NBMMUBML 3VCZ 0CKFDUJWF$ 4XJGU ؔ਺ܕ ಈతੑ ΦϒδΣΫτࢦ޲ ΦϒδΣΫτࢦ޲
    ϝοηʔδૹ৴
46. ͭ·Γɺ J04ΞϓϦ։ൃऀ͸
    γʔϞΞɾύύʔτͷ
 ӨڹΛड͚͍ͯΔͱݴ͑Δ
47. ͦͯ͠
    ೥ʜ
48. ೥
    ๻Λಈ͔ͨ͠Ͱ͖͝ͱ w88%$Ͱ4XJGU
    1MBZHSPVOETൃද
    w݄೔
    γʔϞΞɾύύʔτ͕ࢮڈ
49. 4XJGU
    1MBZHSPVOETͰ
    λʔτϧɾάϥϑΟοΫε
    ͍ͨ͠ʂ
50. ࢠͲ΋ͨͪʹ
    ๻ͱಉ͡ମݧΛ ʂ
51. Ұिؒޙ
52. 5PSUPJTF
    (SBQIJDT
54. 5PSUPJTF
    (SBQIJDT w4XJGU੡λʔτϧɾάϥϑΟοΫεɾΤϯδϯ
    w໊લ͸ݸਓతʹϦΫΨϝͷํ͕޷Έͳͷ͕ཧ༝
    w9DPEF
    1MBZHSPVOET
    4XJGU
    1MBZHSPVOETͰಈ࡞
    wCGImage΁ͷग़ྗػೳ
56. ⭐͍ͩ͘͞ github.com/temoki/TortoiseGraphics
59. 5PSUPJTF
    (SBQIJDTͷ
    ٕज़తͳ࿩ᶃ
    ʢάϥϑΟοΫεฤʣ
60. 'SBNFXPSLT w$PSF
    (SBQIJDT
    w$PSF
    "OJNBUJPO ग़య
    EFWFMPQFBQQMFDPN
61. 'SBNFXPSLT w$PSF
    (SBQIJDT
    w$PSF
    "OJNBUJPO ग़య
    EFWFMPQFBQQMFDPN
62. $PSF
    (SBQIJDT w2VBSU[
    %
    ͱ΋ݺ͹ΕΔ
    w௿ϨϕϧͰܰྔͳ%ඳըΤϯδϯ
    wCGContext
    CGImage
    CGPoint
    ʜ
63. CGContext w$PSF
    (SBQIJDTͷग़ྗઌͱͳΔ΋ͷ
    wಉ໋͡ྩͰ༷ʑͳग़ྗઌʹඳըͰ͖Δ
    wΞϓϦͷϏϡʔɺϏοτϚοϓը૾ɺ
 1%'υΩϡϝϯτɺϓϦϯλʔ
    wඳըύϥϝʔλͱɺඳըʹඞཁͳग़ྗઌ
 σόΠεಛ༗ͷ৘ใΛ͍࣋ͬͯΔ
66. ࣮૷ͷϙΠϯτ w$PSF
    (SBQIJDT͸௚ަ࠲ඪܥͰߟ͑Δ
    wλʔτϧɾάϥϑ ΟοΫε͸ͷࢹ఺Ͱߟ͑Δ
    wͷݱࡏͷঢ়ଶͱࢦࣔ͞Ε໋ͨྩʹԠͯ͡ɺ
 ௚ަ࠲ඪܥͰͷߦ͖ઌΛΞϑΟϯม׵ͰٻΊΔ
67. forward P2(x,y) ҠಈޙͷҐஔ Ҡಈڑ཭ distance ݱࡏͷ޲͖ SBE heading P1(x,y) ݱࡏͷҐஔ
68. forward P1(x,y) ݱࡏͷҐஔ P2(x,y) ҠಈޙͷҐஔ Ҡಈڑ཭ distance ݱࡏͷ޲͖ SBE heading
69. 'SBNFXPSLT w$PSF
    (SBQIJDT
    w$PSF
    "OJNBUJPO ग़య
    EFWFMPQFBQQMFDPN
70. $PSF
    "OJNBUJPO wάϥϑΟοΫεͱΞχϝʔγϣϯͷΠϯϑϥ
    wΞϓϦͷϏϡʔΛ؆୯ʹΞχϝʔγϣϯͰ͖Δ
    w(16Λ࠷େݶʹར༻͢ΔͨΊߴ଎
    wCALayer
    CAAnimation
    ʜ
71. CALayer wUIView͸CALayerͷ
 ֊૚Ͱߏ੒͞ΕΔ
    wUIViewͷඳը΍
 ΞχϝʔγϣϯͷҠৡઌ
    wCAShapeLayer
    CATextLayer
    ʜ UIView CALayer (sub1) CALayer (root) CALayer (sub2)
72. CAShapeLayer w࠲ඪۭؒʹ࣍#4QMJOFΛඳը͢ΔϨΠϠʔ
    wඳըύεͱઢ΍ృΓͷύϥϝʔλΛࢦఆ͢Ε͹ ͦͷύεΛඳըͯ͘͠ΕΔ
73. CAAnimation w$PSF
    "OJNBUJPOͷ
 ΞχϝʔγϣϯΛ୲͏
    wCALayerʹΞλον͢Δ
    wCABasicAnimation
    CAKeyframeAnimation
    ʜ CALayer .alpha
74. ࣮૷ͷϙΠϯτ wͷඳ͘ઢͷΞχϝʔγϣϯ

    CAShapeLayer CABasicAnimation
    wͷҠಈͷΞχϝʔγϣϯ

    CAShapeLayer CAKeyframeAnimation
75. ͷඳ͘ઢͷΞχϝʔγϣϯ
    
    CAShapeLayer CABasicAnimation toValue fromValue CAShapeLayer.path Animation
76. ͷඳ͘ઢͷΞχϝʔγϣϯ
    
    CAShapeLayer CABasicAnimation
77. ͷҠಈͷΞχϝʔγϣϯ
    
    CAShapeLayer CAKeyframeAnimation path Animation CAShapeLayer().position
78. ͷҠಈͷΞχϝʔγϣϯ
    
    CAShapeLayer CAKeyframeAnimation
79. ࠷ऴతͳΞχϝʔγϣϯ
80. ϨΠϠʔߏ੒
81. ϨΠϠʔߏ੒ ඳըࡁΈ
    ϏοτϚοϓදࣔ ඳըΞχϝʔγϣϯ Ξχϝʔγϣϯ
82. 5PSUPJTF
    (SBQIJDTͷ
    ٕज़తͳ࿩ᶄ
    ʢ4XJGU
    1MBZHSPVOET
    #PPLฤʣ
83. 
    
    
    
    
    4XJGU
    1MBZHSPVOET wJ1BEͰ4XJGUΛɻίʔσ Οϯάͷ৽ֶ͍͠ͼํɻ
    w"3,JU
    "7'PVOEBUJPO
    $PSF#MVFUPPUI΋ಈ࡞
    w"QQMF
    -&(0౳͕༷ʑͳίϯςϯπΛఏڙ
    w#PPLͱ͍͏ܗͰ୭Ͱ΋࡞੒ͯ͠഑෍Ͱ͖Δ
84. 4XJGU
    1MBZHSPVOET
    #PPL
    ࡞੒ɾ഑෍ͷํ๏
85. 
    J04%$
    
    w!TPOTPO@UXJU
    ͞Μͷ ࡢ೥ͷൃද͕लҳʂ
    w͜Εͱ"QQMFެࣜͷ
 υΩϡϝϯτΛߦ͖དྷ ͢Δͷ͕Φεεϝʂ ग़య
    GPSUFFKQJPTEDKBQBO
86. 4XJGU
    1MBZHSPVOET
    #PPL࡞੒ํ๏ w#PPL
    
    $IBQUFS
    
    1BHF
    ͱ͍͏ߏ੒
    w#PPLΛߏ੒͢Δϝλ৘ใɺ4XJGUιʔεɺ
 ֤छϦιʔε౳ͷϑΝΠϧΛ·ͱΊͨ΋ͷ
    w"QQMF͔Βఏڙ͞Ε͍ͯΔςϯϓϨʔτ
 4XJGU
    1MBZHSPVOET
    "VUIPS
    5FNQMBUFΛ࢖͏ μΠδΣετ൛
87. 4XJGU
    1MBZHSPVOET
    #PPL࡞੒ํ๏ w1MBZHSPVOE
    1BHF͕࠷খ୯Ґ
    w$POUFOUTTXJGU
    ίϯςϯπ
    w-JWF7JFXTXJGU
    දࣔ
    w.BOJGFTUQMJTU
    ϖʔδ৘ใ μΠδΣετ൛
88. Contents.swift LiveView.swift ग़య
    EFWFMPQFSBQQMFDPN -JWF7JFXͷϓϩΩγΛհͯ͠
    PlaygroundValue
    Λ΍ΓͱΓ
    
89. 4XJGU
    1MBZHSPVOET
    #PPL഑෍ํ๏ w"JS%SPQͰ#PPLΛJ1BEʹసૹ

    ։ൃதͷσόοάखஈ΋͜Ε͚ͩ
    w"QQMFެࣜͷ4VCTDSJQUJPOͷ࢓૊Έ μΠδΣετ൛
90. 4VCTDSJQUJPO wSE
    1BSUZͷ#PPLΛߪಡ͢Δ࢓૊Έ
    w4XJGU
    1MBZHSPVOET
    
    ೥ Ͱ௥Ճ͞Εͨ
    w഑৴ऀ͸#PPLߪಡ༻ͷ'FFE
    +40/ϑΝΠϧ ͱ
 #PPLΛ΢Σϒ্ʹ഑ஔ
    wϢʔβʔ͸J1BEͷ4BGBSJͰͦͷϦϯΫΛ౿Ί͹
 4XJGU
    1MBZHSPVOETʹ#PPL͕௥Ճ͞ΕΔ
92. 5PSUPJTF
    (SBQIJDTͷ
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93. ͦͷ̍
95. ͦͷ̎
96. J04%$
    
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97. ͦͷ̏
98. ʮतۀͰ࢖͍͍ͨʯ ͱ
    ͭͷֶߍ͔Βͷ࿈བྷ
99. ग़య
    XXXMDTPODB
100. ֶߍͷतۀͰͷ׆༻ࣄྫ w-BLFpFME
     $PMMFHF
     4DIPPM
     wΧφμ
     ΦϯλϦΦभͷશྈ੍ࢲཱߴߍ
     w໿ਓͷֶੜ͕ࡏ੶
101. ίϯϐϡʔλɾαΠΤϯεೖ໳ w·ͣ͸4DSBUDI΍(1ͷΑ͏ͳϒϩοΫɾϕʔεͷ
 ϓϩάϥϛϯά͔Β࢝ΊΔ
     w࣍ʹ5PSUPJTF
     (SBQIJDTͰςΩετɾϕʔεͷ
 ϓϩάϥϛϯάʹҠߦ͢Δ
     w࠷ऴ՝୊͸ੜె͕ಠࣗͷਤܗΛίʔυͰඳ͍ͯ
 ϖϯɾϓϩολʔͰग़ྗ͢Δ
105. 5PSUPJTF
     (SBQIJDT
     ͷࠓޙ
106. 5PSUPJTF
     (SBQIJDTͷࠓޙ wϖϯɾϓϩολʔग़ྗͷͨΊʹ
 47(ܗࣜͰͷग़ྗʹରԠ͢Δ
     wશମͷΫΦϦςΟ޲্
     wͦͯ͠࠷ऴతʹ໨ࢦ͢ઌ͸ʜ
108. ͝੩ௌ
     ͋Γ͕ͱ͏͍͟͝·ͨ͠