void InitializeBalls()
{
// 初始化数组
balls1 = new Ball[width, height];
balls2 = new Ball[width, height];
drawingBalls = new Ellipse[width, height];
for (int j = 0; j < height; j++)
{
for (int i = 0; i < width; i++)
{
// 新建小球
balls1[i, j] = new Ball();
Ball b = balls1[i, j];
b.position = new Point(i * 30, j * 30);
if (i == 0 && j == 0)
b.isAnchor = true;
// 复制一份
balls2[i, j] = balls1[i, j];
// 当前的和上一帧的
currBalls = balls1;
lastBalls = balls2;
// 画出小球
Ellipse ball = new Ellipse();
ball.Height = ball.Width = b.diameter ;
if (b.isAnchor)
ball.Fill = new SolidColorBrush(Colors.Gray);
else
ball.Fill = new SolidColorBrush(Colors.White);
ball.Stroke = new SolidColorBrush(Colors.Black);
ball.StrokeThickness = 2;
ball.RenderTransform = new TranslateTransform(b.position.X, b.position.Y);
Box.Children.Add(ball);
// 为小球添加响应函数
ball.MouseLeftButtonDown += onPress;
//ball.MouseMove += onMove;
// 加入数组
drawingBalls[i, j] = ball;
}
}
}
void onRelease(Object sender, MouseButtonEventArgs e)
{
if (dragingBall != null)
dragingBall.isDraging = false;
dragingBall = null;
dragingElli = null;
}
public Ball GetNeighbour(Ball b)
{
return b == b1 ? b2 : b1;
}
void onPress(Object sender, MouseButtonEventArgs e)
{
lastMousePos = e.GetPosition(this);
Ellipse elli = sender as Ellipse;
// 寻找被选中的球
for (int j=0; j<height; j++)
for (int i = 0; i < width; i++)
{
if (drawingBalls[i, j] == elli && !lastBalls[i, j].isAnchor)
{
dragingElli = elli;
dragingBall = lastBalls[i, j];
dragingBall.isDraging = true;
return;
}
}
}
public Stick(Ball b1, Ball b2)
{
this.b1 = b1;
this.b2 = b2;
}
