package
{
	import flash.display.Sprite;
	import flash.geom.Point;

	public class animation_ch13_Segment extends Sprite
	{
		private var color:uint;
		private var segmentWidth:Number;
		private var segmentHeight:Number;
		
		public var vx:Number = 0;
		public var vy:Number = 0;
		
		public function animation_ch13_Segment(segmentWidth:Number, segmentHeight:Number, color:uint = 0xffffff)
		{
			this.segmentWidth = segmentWidth;
			this.segmentHeight = segmentHeight;
			this.color = color;
			init();
		}
		
		public function init():void
		{
			// draw the segment itself
			graphics.lineStyle(0);
			graphics.beginFill(color);
			graphics.drawRoundRect(-segmentHeight / 2, 
								   -segmentHeight / 2,
								   segmentWidth + segmentHeight,
								   segmentHeight,
								   segmentHeight,
								   segmentHeight);
			graphics.endFill();
			
			// draw the two "pins"
			graphics.drawCircle(0, 0, 2);
			graphics.drawCircle(segmentWidth, 0, 2);
		}
		
		public function getPin():Point
		{
			var angle:Number = rotation * Math.PI / 180;
			var xPos:Number = x + Math.cos(angle) * segmentWidth;
			var yPos:Number = y + Math.sin(angle) * segmentWidth;
			return new Point(xPos, yPos);
		}
	}
}