{"id":2999,"date":"2017-12-16T09:00:06","date_gmt":"2017-12-16T00:00:06","guid":{"rendered":"http:\/\/oohito.com\/nqthm\/?p=2999"},"modified":"2017-12-16T09:00:06","modified_gmt":"2017-12-16T00:00:06","slug":"building-a-memory-game-with-bloc%e3%81%ae%e6%89%8b%e7%bf%92%e3%81%84%ef%bc%88chapter-3%ef%bc%89","status":"publish","type":"post","link":"https:\/\/oohito.com\/nqthm\/archives\/2999","title":{"rendered":"Building a memory game with Bloc\u306e\u624b\u7fd2\u3044\uff08Chapter 3\uff09"},"content":{"rendered":"

\u3053\u308c\u306fSmalltalk Advent Calendar 2017<\/a>\u306e\u8a18\u4e8b\u3067\u3059\u3002<\/p><\/blockquote>\n

\u524d\u56de\u306b\u5f15\u304d\u7d9a\u3044\u3066\u3001Bloc \u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u3042\u308b Building a memory game with Bloc \u306eChapter 3(Building card graphical elements) \u306e\u5185\u5bb9\u3092\u3084\u3063\u3066\u3044\u304f\u3002
\n\u5143\u30cd\u30bf\u306f
\nhttps:\/\/github.com\/pharo-graphics\/Bloc<\/a>
\n\u306e\u4e2d\u306b\u3042\u308b\u3001
\nhttp:\/\/files.pharo.org\/books-pdfs\/booklet-Bloc\/2017-11-09-memorygame.pdf<\/a>
\n\u3067\u3042\u308b\u3002
\n
\n\u305d\u308d\u305d\u308dUI\u3089\u3057\u3044\u8a71\u306b\u306a\u308b\u3068\u601d\u308f\u308c\u308b3\u7ae0\u306b\u305f\u3069\u308a\u7740\u3044\u305f\u3002\u5192\u982d\u3067\u306f\u30ab\u30fc\u30c9\u306e\u8868\u793a\u306b\u3064\u3044\u3066\u5c11\u3057\u305a\u3064\u5b66\u3093\u3067\u3044\u3051\u308b\u3088\u3046\u306a\u3053\u3068\u304c\u66f8\u304b\u308c\u3066\u3044\u308b\u3002
\nBloc\u3067\u306f\u8996\u899a\u7684\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30a8\u30ec\u30e1\u30f3\u30c8\u3068\u547c\u3093\u3067\u3001BlElement \u3092\u7d99\u627f\u3057\u305f\u30af\u30e9\u30b9\u3092\u4f7f\u3046\u3089\u3057\u3044\u3002<\/p>\n

3.1 First: the card element<\/h2>\n

\u307e\u305a\u306f\u30ab\u30fc\u30c9\u306e\u30d3\u30e5\u30fc\u3068\u306a\u308b\u30af\u30e9\u30b9\u3092\u5b9a\u7fa9\u3059\u308b\u3002\u5148\u307b\u3069\u306e\u3068\u304a\u308a BlElement \u306e\u30b5\u30d6\u30af\u30e9\u30b9\u3068\u3059\u308b\u306e\u3067\u3001\u30ab\u30fc\u30c9\u306e\u30a8\u30ec\u30e1\u30f3\u30c8\u3068\u547c\u3076\u3053\u3068\u306b\u3059\u308b\u3002\u3053\u306e\u30a8\u30ec\u30e1\u30f3\u30c8\u306b\u306f\u3001\u30ab\u30fc\u30c9\u306e\u30e2\u30c7\u30eb\u3092\u53c2\u7167\u3059\u308b\u305f\u3081\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570 card \u3092\u4f5c\u308b\u3002<\/p>\n

BlElement subclass: #MgdRawCardElement\n    instanceVariableNames: 'card'\n    classVariableNames: ''\n    package: 'Bloc-MemoryGame-Demo-Elements'<\/pre>\n
backgroundPaint \u3067\u30ab\u30fc\u30c9\u306e\u30a8\u30ec\u30e1\u30f3\u30c8\u306e\u80cc\u666f\u8272\u3092\u6c7a\u3081\u308b\u3002<\/p>\n
MgdRawCardElement >> backgroundPaint\n    ^ Color lightGray<\/pre>\n
\u30e2\u30c7\u30eb\u3068\u30d3\u30e5\u30fc\u3068\u3067\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u306e\u30a2\u30af\u30bb\u30c3\u30b5\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n
MgdRawCardElement >> card\n    ^ card<\/pre>\n
MgdRawCardElement >> card: aMgCard\n    card := aMgCard.<\/pre>\n
initialize \u30e1\u30bd\u30c3\u30c9\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n
MgdRawCardElement >> initialize\n    super initialize.\n    self size: 80 @ 80.\n    self card: (MgdCardModel new symbol: $a).<\/pre>\n
3.2 Starting to draw a card<\/h2>\n
\u30a8\u30ec\u30e1\u30f3\u30c8\u306e\u8868\u793a\u5c5e\u6027\u3092\u5b9a\u7fa9\u3059\u308b\u305f\u3081\u306b drawOnSpartaCanvas: \u3068\u3044\u3046\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u3089\u3057\u3044\u3002sparta canvas \u3063\u3066\u306a\u3093\u3060\uff1f\u53b3\u5bc6\u306a\u30ad\u30e3\u30f3\u30d0\u30b9\uff1f
\n\u306a\u308b\u307b\u3069\u3001Sparta<\/a> \u3068\u3044\u3046\u306e\u306f\u30d9\u30af\u30bf\u30b0\u30e9\u30d5\u30a3\u30af\u30b9\u7528\u306eAPI\u306a\u306e\u306d\u3002\u3068\u3044\u3063\u3066\u3082\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u3051\u3069\u3001\u4eca\u307e\u3067\u306e Canvas \u3068\u306f\u9055\u3046\u3089\u3057\u3044\u3002<\/p>\n
MgdRawCardElement >> drawOnSpartaCanvas: aCanvas\n    aCanvas fill\n      paint: self backgroundPaint;\n      path: self boundsInLocal;\n      draw.<\/pre>\n
\u666e\u901a\u306e drawOn: \u30e1\u30bd\u30c3\u30c9\u306e\u5834\u5408\u3001\u30ad\u30e3\u30f3\u30d0\u30b9\u306b\u63cf\u753b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u308b\u3060\u3051\u3067\u826f\u304b\u3063\u305f\u3051\u3069\u3001drawOnSpartaCanvas: \u3067\u306f\u3001\u6700\u5f8c\u306bdraw \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u3089\u306a\u3044\u3068\u8868\u793a\u3055\u308c\u306a\u3044\u3089\u3057\u3044\u3002
\n\u4eca\u307e\u3067\u306e\u5185\u5bb9\u3067\u8868\u793a\u3055\u305b\u308b\u306b\u306f\u3001 Playground \u3092\u958b\u3044\u3066\u4ee5\u4e0b\u3092\u5165\u529b\u3057\u3066\u53f3\u4e0a\u306e Do it all and go \u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u304b\u3001 Ctrl+g\uff08Mac \u306a\u3089 Command + g\uff09\u3092\u5165\u529b\u3059\u308c\u3070\u3088\u3044\u3002\u7070\u8272\u306e80px\u56db\u65b9\u306e\u30a8\u30ec\u30e1\u30f3\u30c8\u304c\u8868\u793a\u3055\u308c\u308b\u3002<\/p>\n
MgdRawCardElement new.<\/pre>\n
BlElement \u306f Morph \u3067\u306f\u306a\u304f Object \u306e\u30b5\u30d6\u30af\u30e9\u30b9\u306a\u306e\u3067\u3001 MgdRawCardElement new openInWorld \u3068\u304b\u3084\u3063\u3066\u3082\u8868\u793a\u3055\u308c\u306a\u3044\u3002\u4eca\u307e\u3067\u306e\u30e2\u30fc\u30d5\u306e\u3088\u3046\u306b\u306f\u3044\u304b\u306a\u3044\u3002<\/p>\n
3.3 Improving the card visual<\/h2>\n
\u7070\u8272\u306e\u771f\u56db\u89d2\u3067\u30ab\u30fc\u30c9\u3092\u8868\u3059\u306e\u306f\u30c0\u30b5\u3044\u306e\u3067\u3001Sparta \u306e\u30b7\u30a7\u30a4\u30d7\u30d5\u30a1\u30af\u30c8\u30ea\u3092\u4f7f\u3063\u3066\u898b\u6804\u3048\u826f\u304f\u3057\u3088\u3046\u3002\u30b7\u30a7\u30a4\u30d7\u30d5\u30a1\u30af\u30c8\u30ea\u306f\u3044\u308d\u3044\u308d\u306a\u30d1\u30b9\uff08\u76f4\u7dda\u3001\u77e9\u5f62\u3001\u6955\u5186\u3001\u5186\u306a\u3069\uff09\u3092\u8fd4\u3059\u306e\u3067\u3001 path: \u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u30ad\u30e3\u30f3\u30d0\u30b9\u306b\u6e21\u305b\u3070\u3044\u3044\u3089\u3057\u3044\u3002<\/p>\n
path: (aCanvas shape ellipse: self boundsInLocal)<\/pre>\n
\u4e0a\u306e\u3088\u3046\u306a\u5f0f\u3067\u3001\u30d0\u30a6\u30f3\u30c7\u30a3\u30f3\u30b0\u30a8\u30ea\u30a2\u306b\u53ce\u307e\u308b\u6955\u5186\u3092\u30d1\u30b9\u3068\u3057\u3066\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u305d\u3046\u3060\u3002\u5148\u307b\u3069\u306e drawOnSpartaCanvas: \u3092\u66f8\u304d\u63db\u3048\u308b\u3002<\/p>\n
MgdRawCardElement >> drawOnSpartaCanvas: aCanvas\n  aCanvas fill\n    paint: self backgroundPaint;\n    path: (aCanvas shape ellipse: self boundsInLocal);\n    draw.<\/pre>\n
\u4e0a\u306e\u30b3\u30fc\u30c9\u3060\u3068\u77e9\u5f62\u306e\u4ee3\u308f\u308a\u306b\u5186\u304c\u8868\u793a\u3055\u308c\u308b\u3002
\n\"\"
\n\u30ab\u30fc\u30c9\u3068\u3057\u3066\u306f\u5186\u3060\u3068\u4e0d\u9069\u5207\u306a\u306e\u3067\u89d2\u4e38\u56db\u89d2\u5f62\u306b\u3057\u305f\u3044\u3002\u89d2\u4e38\u56db\u89d2\u5f62\u3092\u63cf\u304f\u305f\u3081\u306b\u306f\u3001 roundedRectangle:radii: \u3068\u3044\u3046\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3088\u3046\u3060\u3002\u3053\u3093\u306a\u611f\u3058\u306b\u3059\u308c\u3070\u3044\u3044\u306e\u304b\u306a\u3002<\/p>\n
MgdRawCardElement >> drawOnSpartaCanvas: aCanvas\n  aCanvas fill\n    paint: self backgroundPaint;\n    path: (aCanvas shape roundedRectangle: self boundsInLocal radii: 12);\n    draw.<\/pre>\n
\u8a66\u3057\u3066\u307f\u305f\u3089\u30a8\u30e9\u30fc\u306b\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u3002radii: \u306b\u306f\u66f2\u7387\u534a\u5f84\u306e\u6570\u5024\u3067\u306f\u306a\u304f BlConerRadii \u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u6307\u5b9a\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u300212\u306e\u4ee3\u308f\u308a\u306b(BlCornerRadii radius: 12)\u3068\u3059\u308b\u3002<\/p>\n
MgdRawCardElement >> drawOnSpartaCanvas: aCanvas\n  aCanvas fill\n    paint: self backgroundPaint;\n    path: (aCanvas shape roundedRectangle: self boundsInLocal radii: (BlCornerRadii radius: 12));\n    draw.<\/pre>\n
\u3061\u3083\u3093\u3068\u89d2\u4e38\u56db\u89d2\u5f62\u306b\u306a\u3063\u305f\u305e\u3002
\n\"\"
\n\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306b\u623b\u3063\u3066\u307f\u308b\u3068\u3001\u4e0a\u306e\u30b3\u30fc\u30c9\u3068\u306f\u305a\u3044\u3076\u3093\u9055\u3046\u30b3\u30fc\u30c9\u306b\u306a\u3063\u3066\u3044\u305f\u3002<\/p>\n
MgdRawCardElement >> drawOnSpartaCanvas: aCanvas\n  | roundedRectangle |\n  roundedRectangle := aCanvas shape\n     roundedRectangle: self boundsInLocal\n     radii: (BlCornerRadii radius: self cornerRadius).\n  aCanvas clip\n    by: roundedRectangle\n    during: [ aCanvas fill\n          paint: self backgroundPaint;\n          path: self boundsInLocal;\n          draw ].<\/pre>\n
\u89d2\u4e38\u56db\u89d2\u5f62\u3092\u305d\u306e\u307e\u307e\u63cf\u304f\u306e\u3067\u306f\u306a\u304f\u3001\u89d2\u4e38\u56db\u89d2\u5f62\u3092\u30af\u30ea\u30c3\u30d4\u30f3\u30b0\u306b\u4f7f\u3046\u3068\u3044\u3046\u3053\u3068\u3089\u3057\u3044\u3002 \u304a\u305d\u3089\u304f\u3001\u30ab\u30fc\u30c9\u306e\u8868\u9762\u30fb\u88cf\u9762\u3067\u89d2\u4e38\u56db\u89d2\u5f62\u3092\u63cf\u304b\u305a\u3001\u6700\u7d42\u7684\u306b\u89d2\u4e38\u56db\u89d2\u5f62\u306b\u4ed5\u4e0a\u3052\u308b\u306e\u304c\u7406\u7531\u3060\u308d\u3046\u3002\u6b21\u7bc0\u3092\u5148\u8aad\u307f\u3057\u305f\u3089\u307e\u3055\u3057\u304f\u305d\u3046\u3060\u3063\u305f\u3002
\n\u3042\u3068\uff11\u70b9\u300212\u306e\u3088\u3046\u306a\u30de\u30b8\u30c3\u30af\u30ca\u30f3\u30d0\u30fc\u3067\u306f\u306a\u304f\u3001\u56db\u9685\u306e\u66f2\u7387\u534a\u5f84\u3092\u8fd4\u3059\u30d8\u30eb\u30d1\u30fc\u30e1\u30bd\u30c3\u30c9\u3092\u4f5c\u3089\u306a\u3044\u3068\u3002<\/p>\n
MgdRawCardElement >> cornerRadius\n  ^ 12<\/pre>\n
3.4 Preparing flipping<\/h2>\n
\u524d\u7bc0\u306b\u5f15\u304d\u7d9a\u3044\u3066\u30ab\u30fc\u30c9\u306e\u63cf\u753b\u3092\u884c\u3046\u3002\u6b21\u7bc0\u3067\u8868\u9762\u3068\u88cf\u9762\u3092\u63cf\u304f\u306e\u3067\u3001\u3053\u306e\u7bc0\u3067\u306f\u8868\u88cf\u3092\u63cf\u304d\u5206\u3051\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3092\u6e96\u5099\u3059\u308b\u3002
\n\u307e\u305a\uff12\u3064\u306e\u30e1\u30bd\u30c3\u30c9\uff08\u4e2d\u8eab\u306f\u3068\u308a\u3042\u3048\u305a\u7a7a\uff09\u3092\u4f5c\u308b\u3002<\/p>\n
MgdRawCardElement >> drawBacksideOn: aCanvas\n  \"nothing for now\"<\/pre>\n
MgdRawCardElement >> drawFlippedSideOn: aCanvas\n  \"nothing for now\"<\/pre>\n
\u3053\u306e\uff12\u3064\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u5207\u308a\u66ff\u3048\u3066\u8868\u793a\u3067\u304d\u308b\u3088\u3046\u306b drawOnSpartaCanvas: \u3092\u4fee\u6b63\u3059\u308b\u3002<\/p>\n
MgdRawCardElement >> drawOnSpartaCanvas: aCanvas\n  | roundedRectangle |\n  roundedRectangle := aCanvas shape\n     roundedRectangle: self boundsInLocal\n     radii: (BlCornerRadii radius: self cornerRadius).\n  aCanvas clip\n    by: roundedRectangle\n    during: [ aCanvas fill\n          paint: self backgroundPaint;\n          path: self boundsInLocal;\n          draw.\n      self card isFlipped<\/span>\n        ifTrue: [ self drawFlippedSideOn: aCanvas ]<\/span>\n        ifFalse: [ self drawBacksideOn: aCanvas ]<\/span> ].<\/pre>\n
\u30ab\u30fc\u30c9\u306e\u30e2\u30c7\u30eb\u306e\u72b6\u614b\uff08isFlipped\uff09\u306b\u3088\u3063\u3066\u8868\u793a\u3059\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u5207\u308a\u66ff\u3048\u3066\u3044\u308b\u306e\u304c\u308f\u304b\u308b\u3002
\n\u77e9\u5f62\u3092\u63cf\u304f\u90e8\u5206\u3082\u5225\u30e1\u30bd\u30c3\u30c9\u306b\u3057\u3066\u3001\u5168\u4f53\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u3059\u308b\u3002<\/p>\n
MgdRawCardElement >> drawCommonOn: aCanvas\n  aCanvas fill\n    paint: self backgroundPaint;\n    path: self boundsInLocal;\n    draw.<\/pre>\n
\u7d50\u679c\u3068\u3057\u3066 drawOnSpartaCanvas: \u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3059\u3063\u304d\u308a\u3057\u305f\u3002<\/p>\n
MgdRawCardElement >> drawOnSpartaCanvas: aCanvas\n  | roundedRectangle |\n  roundedRectangle := aCanvas shape\n     roundedRectangle: self boundsInLocal\n     radii: (BlCornerRadii radius: self cornerRadius).\n  aCanvas clip\n    by: roundedRectangle\n    during: [\n      self drawCommonOn: aCanvas.\n      self card isFlipped\n        ifTrue: [ self drawFlippedSideOn: aCanvas ]\n        ifFalse: [ self drawBacksideOn: aCanvas ] ].<\/pre>\n
3.5 Adding a cross<\/h2>\n
\u6e96\u5099\u304c\u6574\u3063\u305f\u3068\u3053\u308d\u3067\u30ab\u30fc\u30c9\u306e\u88cf\u9762\u306e\u8868\u793a\u306b\u3068\u308a\u304b\u304b\u308b\u3002
\n\"\"
\n\u4e0a\u306e\u753b\u50cf\u306e\u3088\u3046\u306b\u30ab\u30fc\u30c9\u306e\u88cf\u9762\u306f\u30b7\u30f3\u30d7\u30eb\u306a\u2715\u5370\u3092\u63cf\u304f\u4e88\u5b9a\u3060\u304b\u3089\u3001\u2715\u5370\u3068\u306a\u308b\u7dda\u3092\u5f15\u304f\u5fc5\u8981\u304c\u3042\u308b\u3002
\n\u7dda\u3092\u63cf\u304f\u306b\u306f\u3001 Path \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u3063\u3066\u6e21\u3059\u304b\u3001\u30b7\u30a7\u30a4\u30d7\u30d5\u30a1\u30af\u30c8\u30ea\u3092\u7528\u3044\u3066\u30ad\u30e3\u30f3\u30d0\u30b9\u306b\u63cf\u753b\u3055\u305b\u308b\u304b\u306e2\u7a2e\u985e\u306e\u65b9\u6cd5\u304c\u3042\u308b\u3089\u3057\u3044\u3002<\/p>\n
(aCanvas shape line: 0 @ 0 to: self extent)<\/pre>\n
\u4e0a\u306e\u30b3\u30fc\u30c9\u306f\u3001shape \u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u30b7\u30a7\u30a4\u30d7\u30d5\u30a1\u30af\u30c8\u30ea\u3092\u4f5c\u308a\u3001\u305d\u308c\u306b\u5de6\u4e0a\u7aef\u304b\u3089\u53f3\u4e0b\u7aef\u307e\u3067\u306e\u7dda\u3092\u63cf\u304f\u3088\u3046\u6307\u793a\u3057\u3066\u3044\u308b\u3002<\/p>\n
MgdRawCardElements >> drawBacksideOn: aCanvas\n  aCanvas stroke\n    paint: Color paleBlue;\n    path: (aCanvas shape line: 0 @ 0 to: self extent);\n    draw.<\/pre>\n
\u7d50\u5c40\u3001\u7dda\u3092\u63cf\u304f\u30b7\u30a7\u30a4\u30d7\u3092 path: \u3067\u6e21\u3057\u3066\u3044\u308b\u3093\u3060\u3088\u3002\u30d1\u30b9\u3068\u30b7\u30a7\u30a4\u30d7\u306e\u9055\u3044\u306f\u306a\u3093\u3060\u308d\u3046\u3002cairo \u3092\u3061\u3083\u3093\u3068\u52c9\u5f37\u3059\u308b\u3068\u308f\u304b\u308b\u306e\u304b\u306a\u3002<\/p>\n
3.6 Full cross<\/h2>\n
\u5148\u307b\u3069\u306e\u30b3\u30fc\u30c9\u3067\u306f\u4e00\u65b9\u306e\u659c\u3081\u7dda\u3057\u304b\u63cf\u3044\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u53cd\u5bfe\u5074\u306e\u659c\u3081\u7dda\u3082\u63cf\u304f\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\n
MgdRawCardElements >> drawBacksideOn: aCanvas\n  aCanvas stroke\n    paint: Color paleBlue;\n    path: (aCanvas shape line: 0 @ 0 to: self extent);\n    draw.\n  aCanvas stroke\n    paint: Color paleBlue;\n    path: (aCanvas shape line: self width @ 0 to: 0 @ self height);<\/pre>\n
\u3053\u308c\u3067\u30ab\u30fc\u30c9\u88cf\u9762\u306e\u63cf\u753b\u306e\u5b9f\u88c5\u304c\u5b8c\u4e86\u3057\u305f\u3002
\n\"\"<\/p>\n
3.7 Flipped side<\/h2>\n
\u6700\u5f8c\u306b\u30ab\u30fc\u30c9\u306e\u8868\u9762\u3001\u3064\u307e\u308a\u6587\u5b57\u306e\u66f8\u304b\u308c\u305f\u9762\u306e\u63cf\u753b\u306b\u3068\u308a\u304b\u304b\u308b\u3002\u30ab\u30fc\u30c9\u306e\u8868\u9762\u3092\u8868\u793a\u3055\u305b\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u3066\u30ab\u30fc\u30c9\u306e\u30e2\u30c7\u30eb\u306b flip \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u308b\u3002<\/p>\n
| cardElement |\ncardElement := MgdRawCardElement new.\ncardElement card flip.\ncardElement.<\/pre>\n
\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3092 Playground \u306b\u5165\u529b\u3057\u3066 Do it all and go \u30dc\u30bf\u30f3\u3092\u62bc\u305b\u3070\u8868\u9762\u304c\u8868\u793a\u3055\u308c\u308b\u3002\u4eca\u306e\u3068\u3053\u308d\u3001drawFlippedSideOn: \u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u8eab\u306f\u7a7a\u3063\u307d\u306a\u306e\u3067\u89d2\u4e38\u56db\u89d2\u5f62\u304c\u8868\u793a\u3055\u308c\u308b\u3060\u3051\u3060\u304c\u3002
\n\u4ee5\u4e0b\u306e\u65b9\u91dd\u3067\u30ab\u30fc\u30c9\u8868\u9762\u306e\u63cf\u753b\u306b\u3068\u308a\u304b\u304b\u308b\u3002<\/p>\n
    \n
  • \u30ad\u30e3\u30f3\u30d0\u30b9\u306b\u5bfe\u3057\u3066\u5927\u304d\u305550\u306e\u30d5\u30a9\u30f3\u30c8\u3092\u751f\u6210\u3055\u305b\u308b\u3002Bloc\u3067\u306f\u30d3\u30c3\u30c8\u30de\u30c3\u30d7\u30d5\u30a9\u30f3\u30c8\u306f\u4f7f\u3048\u306a\u3044\u306e\u3067 FreeType \u30d5\u30a9\u30f3\u30c8\u3092\u7528\u3044\u308b\u3002<\/li>\n
  • \u305d\u306e\u30d5\u30a9\u30f3\u30c8\u3092\u4f7f\u3063\u3066\u6587\u5b57\u3092\u63cf\u304f\u3002<\/li>\n<\/ul>\n
    MgdRawCardElement >> drawFlippedSideOn: aCanvas\n  | font |\n  font := aCanvas font\n    named: 'Source Sans Pro';\n    size: 50;\n    build.\n  aCanvas text\n    font: font;\n    paint: Color white;\n    string: self card symbol asString;\n    draw.<\/pre>\n
    \u4e0a\u8a18\u306e\u307e\u307e\u63cf\u753b\u3057\u3088\u3046\u3068\u3057\u3066\u3082\u4f55\u3082\u8868\u793a\u3055\u308c\u306a\u3044\u3002\u3068\u3044\u3046\u306e\u3082\u6587\u5b57\u3092\u8868\u793a\u3059\u308b\u4f4d\u7f6e\u304c\u60aa\u3044\u305f\u3081\u3067\u3001\u30d9\u30fc\u30b9\u30e9\u30a4\u30f3\u3092\u6307\u5b9a\u3057\u3066\u3053\u308c\u3092\u4fee\u6b63\u3059\u308b\u3002<\/p>\n
    MgdRawCardElement >> drawFlippedSideOn: aCanvas\n  | font origin<\/span> |\n  font := aCanvas font\n    named: 'Source Sans Pro';\n    size: 50;\n    build.\n  origin := self extent \/ 2.0.<\/span>\n  aCanvas text\n    baseline: origin;<\/span>\n    font: font;\n    paint: Color white;\n    string: self card symbol asString;\n    draw.<\/pre>\n
    \"\"
    \n\u3068\u306f\u3044\u3048\u53f3\u4e0a\u306b\u504f\u3063\u3066\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u306e\u3092\u4f55\u3068\u304b\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u4e2d\u592e\u306b\u8868\u793a\u3059\u308b\u306b\u306f\u30d5\u30a9\u30f3\u30c8\u30e1\u30c8\u30ea\u30c3\u30af\u3092\u53d6\u5f97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002aCanvas text \u304b\u3089\u30d5\u30a9\u30f3\u30c8\u30e1\u30c8\u30ea\u30c3\u30af\u3092\u5f97\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u306e\u3067\u3001\u305d\u306e\u60c5\u5831\u3092\u5143\u306b\u8868\u793a\u4f4d\u7f6e\u3092\u6c42\u3081\u308b\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\n
    MgdRawCardElement >> drawFlippedSideOn: aCanvas\n  | font origin textPainter metrics |\n  font := aCanvas font\n    named: 'Source Sans Pro';\n    size: 50;\n    build.\n  textPainter := aCanvas text\n    font: font;\n    paint: Color white;\n    string: self card symbol asString.\n  metrics := textPainter measure.\n  origin := (self extent - metrics textMetrics bounds extent) \/ 2.0.\n  textPainter\n    baseline: origin;\n    draw.<\/pre>\n
    \"\"
    \n\u6c34\u5e73\u65b9\u5411\u3067\u306f\u4e2d\u592e\u306b\u306a\u3063\u305f\u304c\u3001\u30d5\u30a9\u30f3\u30c8\u306e\u5927\u304d\u3055\u3092\u8003\u616e\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u4e0a\u306b\u504f\u3063\u3066\u3044\u308b\u3002\u6700\u7d42\u7684\u306a\u30b3\u30fc\u30c9\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308b\u3002<\/p>\n
    MgdRawCardElement >> drawFlippedSideOn: aCanvas\n  | font origin textPainter metrics |\n  font := aCanvas font\n    named: 'Source Sans Pro';\n    size: 50;\n    build.\n  textPainter := aCanvas text\n    font: font;\n    paint: Color white;\n    string: self card symbol asString.\n  metrics := textPainter measure.\n  origin := (self extent - metrics textMetrics bounds extent) \/ 2.0.\n  origin := origin - metrics textMetrics bounds origin.\n  textPainter\n    baseline: origin;\n    draw.<\/pre>\n
    \"\"
    \n\u4ee5\u4e0a\u3067\u30ab\u30fc\u30c9\u306e\u63cf\u753b\u306b\u95a2\u3059\u308b\u5b9f\u88c5\u306f\u7d42\u308f\u3063\u305f\u3002Bloc\u3067\u306f\u3001\u30ad\u30e3\u30f3\u30d0\u30b9\u304b\u3089\u56f3\u5f62\u3084\u6587\u5b57\u3092\u63cf\u304f\u69d8\u3005\u306a\u30d5\u30a1\u30af\u30c8\u30ea\u3092\u4f5c\u3063\u3066\u63cf\u753b\u3059\u308b\u3068\u3044\u3046\u3053\u3068\u304c\u308f\u304b\u3063\u305f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u3053\u308c\u306fSmalltalk Advent Calendar 2017\u306e\u8a18\u4e8b\u3067\u3059\u3002 \u524d\u56de\u306b\u5f15\u304d\u7d9a\u3044\u3066\u3001Bloc \u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u3042\u308b Building a memory game with Bloc \u306eChapter 3(…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38],"tags":[],"class_list":["post-2999","post","type-post","status-publish","format-standard","hentry","category-pharo"],"_links":{"self":[{"href":"https:\/\/oohito.com\/nqthm\/wp-json\/wp\/v2\/posts\/2999","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oohito.com\/nqthm\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oohito.com\/nqthm\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oohito.com\/nqthm\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oohito.com\/nqthm\/wp-json\/wp\/v2\/comments?post=2999"}],"version-history":[{"count":0,"href":"https:\/\/oohito.com\/nqthm\/wp-json\/wp\/v2\/posts\/2999\/revisions"}],"wp:attachment":[{"href":"https:\/\/oohito.com\/nqthm\/wp-json\/wp\/v2\/media?parent=2999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oohito.com\/nqthm\/wp-json\/wp\/v2\/categories?post=2999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oohito.com\/nqthm\/wp-json\/wp\/v2\/tags?post=2999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}