1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5var ballRadius;
6
7function drawBallInit(diameter) {
8  ballRadius = diameter / 2;
9}
10
11function drawBall(x, y, angle) {
12  canvasContext.save();
13  canvasContext.fillStyle = 'blue';
14  canvasContext.translate(x, y);
15  canvasContext.rotate(angle);
16  canvasContext.fillRect(-ballRadius, -ballRadius, ballDiameter, ballDiameter);
17  canvasContext.restore();
18}
19