円を描いて中心に揃えたい。私のコードはそれをしません:
var circle:Shape = new Shape(); // The instance name circle is created
circle.graphics.beginFill(0x990000, 1); // Fill the circle with the color 990000
circle.graphics.lineStyle(2, 0x000000); // Give the ellipse a black, 2 pixels thick line
circle.graphics.drawCircle((stage.stageWidth - 100) / 2, (stage.stageHeight - 100) / 2, 100); // Draw the circle, assigning it a x position, y position, raidius.
circle.graphics.endFill(); // End the filling of the circle
addChild(circle); // Add a child