質問編集履歴
6
あふぁふぁ
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###追記 - 改良してみました(2016-08-13 18:33)
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[http://codepen.io/anon/pen/
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[http://codepen.io/anon/pen/RRvogR
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](http://codepen.io/anon/pen/
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](http://codepen.io/anon/pen/RRvogR)
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ひとまずMVCに分割出来ていますでしょうか?
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5
サークルの管理クラスを導入
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###追記 - 改良してみました(2016-08-13 1
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###追記 - 改良してみました(2016-08-13 18:33)
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[http://codepen.io/anon/pen/BzrzOb
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```JavaScript
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//コントローラークラス
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function ViewController(canvasElement) {
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function ViewController(canvasElement, circleList) {
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var circleList = circleList;
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var canvas = canvasElement;
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}
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circleList.add(new Circle(20, 20, 20));
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circleList.add(new Circle(60, 60, 20));
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circleList.getList().forEach(function(circle) {
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canvasView.drawCircle(circle.getPosition(), circle.getRadius());
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canvasView.drawCircle(circle.getPosition(), circle.getRadius());
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})
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canvas.addEventListener("mousedown", function(event) {
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var isPoint
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var isTouchedPointOnCircle = circle.hitTest(event.offsetX, event.offsetY);
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//ビュークラス
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function CanvasView(context) {
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var context = context;
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context.arc(position.x, position.y, radius, 0, Math.PI*2, false);
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context.
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context.fill();
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}
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}
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}
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// circleの管理クラス
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function CircleList() {
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var list = [];
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this.add = function(circle) {
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list.push(circle);
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}
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this.getList = function() {
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return list;
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}
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}
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// circleのモデルクラス
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function Circle(x, y, radius) {
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}
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}
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var controller = new ViewController(document.getElementById("canvas"));
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var controller = new ViewController(document.getElementById("canvas"), new CircleList());
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```
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###今後実装予定の処理
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- 複数のサークルの描画
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- 複数のサークルを保持するクラスの導入
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- サークル同士のヒット判定
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- サークルとマウスダウン座標とのヒット判定
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4
追記キング
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```JavaScript
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function ViewController(canvasElement) {
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var canvas = canvasElement;
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var canvasView = new CanvasView(canvas.getContext("2d"));
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var stateMap = {
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isDragging: false
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}
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var circle = new Circle(20, 20, 20);
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canvasView.drawCircle(circle.getPosition(), circle.getRadius());
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canvas.addEventListener("mousedown", function(event) {
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var isPointInCircle = circle.hitTest(event.offsetX, event.offsetY);
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if (isPointInCircle === true) {
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stateMap.isDragging = true;
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console.log("ドラッグを開始");
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}
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});
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canvas.addEventListener("mousemove", function(event) {
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if (stateMap.isDragging === true) {
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console.log("ドラッグ中");
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}
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});
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canvas.addEventListener("mouseup", function(event) {
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stateMap.isDragging = false;
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console.log("ドラッグ終了");
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});
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}
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function CanvasView(context) {
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var context = context;
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this.drawCircle = function(position, radius) {
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context.beginPath();
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context.arc(position.x, position.y, radius, 0, Math.PI*2, false);
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context.stroke();
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}
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}
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function Circle(x, y, radius) {
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var x = x + radius;
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var y = y + radius;
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var radius = radius;
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this.getPosition = function() {
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return {x: x, y: y};
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}
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this.getRadius = function() {
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return radius;
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}
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this.hitTest = function(x, y) {
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console.log("ヒット判定の実装をする");
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return true;
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}
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}
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var controller = new ViewController(document.getElementById("canvas"));
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```
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###今後実装予定の処理
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- 複数のサークルの描画
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@@ -186,161 +340,9 @@
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- 複数のサークルのドラッグ&ドロップに対応
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```JavaScript
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function ViewController(canvasElement) {
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var canvas = canvasElement;
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var canvasView = new CanvasView(canvas.getContext("2d"));
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var stateMap = {
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isDragging: false
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}
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var circle = new Circle(20, 20, 20);
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canvasView.drawCircle(circle.getPosition(), circle.getRadius());
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canvas.addEventListener("mousedown", function(event) {
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var isPointInCircle = circle.hitTest(event.offsetX, event.offsetY);
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- サークルの上でクリックをするとサークルが選択状態になる
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console.log("ドラッグを開始");
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}
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});
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canvas.addEventListener("mousemove", function(event) {
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if (stateMap.isDragging === true) {
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console.log("ドラッグ中");
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});
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canvas.addEventListener("mouseup", function(event) {
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stateMap.isDragging = false;
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console.log("ドラッグ終了");
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});
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}
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function CanvasView(context) {
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- サークルが選択状態の時にサークルを囲う矩形をドラッグすると、サークルが拡大縮小される
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context.beginPath();
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context.arc(position.x, position.y, radius, 0, Math.PI*2, false);
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context.stroke();
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}
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}
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function Circle(x, y, radius) {
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var y = y + radius;
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var radius = radius;
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this.getPosition = function() {
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this.getRadius = function() {
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}
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this.hitTest = function(x, y) {
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console.log("ヒット判定の実装をする");
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return true;
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}
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}
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var controller = new ViewController(document.getElementById("canvas"));
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```
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3
追記
test
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](http://codepen.io/anon/pen/BzrzOb)
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+
ひとまずMVCに分割出来ていますでしょうか?
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これから実装予定の処理としては以下があります。
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- 複数のサークルの描画
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- 複数のサークルを保持するクラスの導入
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- サークル同士のヒット判定
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- サークルとマウスダウン座標とのヒット判定
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- 複数のサークルのドラッグ&ドロップに対応
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```JavaScript
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function ViewController(canvasElement) {
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2
改良コードを追記
test
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###追記 - 改良してみました(2016-08-13 16:42)
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[http://codepen.io/anon/pen/BzrzOb
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+
](http://codepen.io/anon/pen/BzrzOb)
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```JavaScript
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function ViewController(canvasElement) {
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var canvas = canvasElement;
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var canvasView = new CanvasView(canvas.getContext("2d"));
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var stateMap = {
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isDragging: false
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}
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var circle = new Circle(20, 20, 20);
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canvasView.drawCircle(circle.getPosition(), circle.getRadius());
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|
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+
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canvas.addEventListener("mousedown", function(event) {
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var isPointInCircle = circle.hitTest(event.offsetX, event.offsetY);
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|
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+
|
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|
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|
+
if (isPointInCircle === true) {
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|
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+
stateMap.isDragging = true;
|
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|
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console.log("ドラッグを開始");
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|
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}
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});
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|
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canvas.addEventListener("mousemove", function(event) {
|
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|
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|
+
if (stateMap.isDragging === true) {
|
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+
console.log("ドラッグ中");
|
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|
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}
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});
|
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|
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+
|
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canvas.addEventListener("mouseup", function(event) {
|
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|
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+
stateMap.isDragging = false;
|
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+
|
231
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+
console.log("ドラッグ終了");
|
232
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+
|
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|
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+
|
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+
});
|
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|
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+
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+
}
|
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|
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|
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|
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|
+
|
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|
+
function CanvasView(context) {
|
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|
+
|
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|
+
var context = context;
|
248
|
+
|
249
|
+
|
250
|
+
|
251
|
+
this.drawCircle = function(position, radius) {
|
252
|
+
|
253
|
+
context.beginPath();
|
254
|
+
|
255
|
+
context.arc(position.x, position.y, radius, 0, Math.PI*2, false);
|
256
|
+
|
257
|
+
context.stroke();
|
258
|
+
|
259
|
+
}
|
260
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+
|
261
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+
|
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+
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+
}
|
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+
|
265
|
+
|
266
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+
|
267
|
+
|
268
|
+
|
269
|
+
function Circle(x, y, radius) {
|
270
|
+
|
271
|
+
|
272
|
+
|
273
|
+
var x = x + radius;
|
274
|
+
|
275
|
+
var y = y + radius;
|
276
|
+
|
277
|
+
var radius = radius;
|
278
|
+
|
279
|
+
|
280
|
+
|
281
|
+
this.getPosition = function() {
|
282
|
+
|
283
|
+
return {x: x, y: y};
|
284
|
+
|
285
|
+
}
|
286
|
+
|
287
|
+
|
288
|
+
|
289
|
+
this.getRadius = function() {
|
290
|
+
|
291
|
+
return radius;
|
292
|
+
|
293
|
+
}
|
294
|
+
|
295
|
+
|
296
|
+
|
297
|
+
this.hitTest = function(x, y) {
|
298
|
+
|
299
|
+
console.log("ヒット判定の実装をする");
|
300
|
+
|
301
|
+
return true;
|
302
|
+
|
303
|
+
}
|
304
|
+
|
305
|
+
|
306
|
+
|
307
|
+
|
308
|
+
|
309
|
+
|
310
|
+
|
311
|
+
|
312
|
+
|
313
|
+
}
|
314
|
+
|
315
|
+
|
316
|
+
|
317
|
+
|
318
|
+
|
319
|
+
|
320
|
+
|
321
|
+
var controller = new ViewController(document.getElementById("canvas"));
|
322
|
+
|
323
|
+
```
|
324
|
+
|
325
|
+
|
326
|
+
|
327
|
+
|
328
|
+
|
167
329
|
###補足事項
|
168
330
|
|
169
331
|
下記のサイトでも質問を投稿しております。
|
1
リファクタリングのタグを追加
test
CHANGED
File without changes
|
test
CHANGED
File without changes
|