package away3d.primitives
{
	import away3d.arcane;
	import away3d.bounds.BoundingVolumeBase;
	import away3d.entities.SegmentSet;
	import away3d.errors.AbstractMethodError;
	import away3d.primitives.data.Segment;
	
	import flash.geom.Vector3D;
	
	use namespace arcane;
	
	public class WireframePrimitiveBase extends SegmentSet
	{
		private var _geomDirty:Boolean = true;
		private var _color:uint;
		private var _thickness:Number;
		
		public function WireframePrimitiveBase(color:uint = 0xffffff, thickness:Number = 1)
		{
			if (thickness <= 0)
				thickness = 1;
			_color = color;
			_thickness = thickness;
			mouseEnabled = mouseChildren = false;
		}
		
		public function get color():uint
		{
			return _color;
		}
		
		public function set color(value:uint):void
		{
			_color = value;
			
			for each (var segRef:Object in _segments) {
				segRef.segment.startColor = segRef.segment.endColor = value;
			}
		}
		
		public function get thickness():Number
		{
			return _thickness;
		}
		
		public function set thickness(value:Number):void
		{
			_thickness = value;
			
			for each (var segRef:Object in _segments) {
				segRef.segment.thickness = segRef.segment.thickness = value;
			}
		}
		
		override public function removeAllSegments():void
		{
			super.removeAllSegments();
		}
		
		override public function get bounds():BoundingVolumeBase
		{
			if (_geomDirty)
				updateGeometry();
			return super.bounds;
		}
		
		protected function buildGeometry():void
		{
			throw new AbstractMethodError();
		}
		
		protected function invalidateGeometry():void
		{
			_geomDirty = true;
			invalidateBounds();
		}
		
		private function updateGeometry():void
		{
			buildGeometry();
			_geomDirty = false;
		}
		
		protected function updateOrAddSegment(index:uint, v0:Vector3D, v1:Vector3D):void
		{
			var segment:Segment;
			var s:Vector3D, e:Vector3D;

			if ((segment = getSegment(index)) != null) {
				s = segment.start;
				e = segment.end;
				s.x = v0.x;
				s.y = v0.y;
				s.z = v0.z;
				e.x = v1.x;
				e.y = v1.y;
				e.z = v1.z;
				segment.updateSegment(s, e, null, _color, _color, _thickness);
			} else
				addSegment(new LineSegment(v0.clone(), v1.clone(), _color, _color, _thickness));
		}
		
		override protected function updateMouseChildren():void
		{
			_ancestorsAllowMouseEnabled = false;
		}
	}
}