first commit

.gitignore

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+build
+yotta_targets
+yotta_modules

.yotta.json

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+{
+  "build": {
+    "target": "bbc-microbit-classic-gcc,*"
+  }
+}

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2017 Kohei Watanabe.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.

README.md

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+# microbit-life-of-game
+
+micro:bitでライフゲームが動きます
+
+## 動作手順
+
+あらかじめ [Offline Development - micro:bit runtime](https://lancaster-university.github.io/microbit-docs/offline-toolchains/) などを参考に、yottaをインストールします
+
+```
+git clone https://github.com/kou029w/microbit-life-of-game
+cd microbit-life-of-game
+yt build
+```
+
+`./build/bbc-microbit-classic-gcc/source/microbit-life-of-game-combined.hex` をmicro:bitにコピーすると動作します

module.json

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+{
+  "name": "microbit-life-of-game",
+  "version": "0.0.1",
+  "license": "MIT",
+  "dependencies": {
+    "microbit": "lancaster-university/microbit"
+  },
+  "targetDependencies": {},
+  "bin": "./source"
+}

source/main.cpp

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+#include "MicroBit.h"
+
+MicroBit uBit;
+MicroBitImage field("0,1,0,0,0\n0,0,1,1,0\n1,1,0,0,0\n0,0,1,0,0\n0,0,0,0,0\n");
+enum Life {DIE = 0, LIVE = 255};
+
+Life deadOrAlive(int x, int y) {
+    int survivor = 0;
+
+    for (int row = (y > 0 ? -1 : 0); row <= (y < 4 ? 1 : 0); row++) {
+        for (int col = (x > 0 ? -1 : 0); col <= (x < 4 ? 1 : 0); col++) {
+            if (col == 0 && row == 0)
+                continue;
+
+            if (field.getPixelValue(x + col, y + row))
+                survivor++;
+        }
+    }
+
+    if (field.getPixelValue(x, y)) {
+        if (survivor == 2 || survivor == 3)
+            return LIVE;
+        else
+            return DIE;
+    } else {
+        if (survivor == 3)
+            return LIVE;
+        else
+            return DIE;
+    }
+}
+
+void fieldUpdate() {
+    MicroBitImage nextGeneration(5, 5);
+
+    for (int y = 0; y < 5; y++) {
+        for (int x = 0; x < 5; x++) {
+            nextGeneration.setPixelValue(x, y, deadOrAlive(x, y));
+        }
+    }
+
+    field.paste(nextGeneration);
+}
+
+void lifeOfGame() {
+    while(1) {
+        uBit.sleep(1000);
+        uBit.display.image.paste(field);
+        fieldUpdate();
+    }
+}
+
+int main() {
+    uBit.init();
+
+    while(1)
+        lifeOfGame();
+}