using System;
using CodeImp.DoomBuilder.Geometry;

namespace CodeImp.DoomBuilder.GZBuilder.Geometry {
	public enum Line3DType
	{
		DEFAULT,
		ACTIVATOR,
	}
	
	public class Line3D {
		// Coordinates
		public Vector3D v1;
		public Vector3D v2;
		public Line3DType LineType { get { return lineType; } }
		private Line3DType lineType;

		// Constructors
		public Line3D(Vector3D v1, Vector3D v2) {
			this.v1 = v1;
			this.v2 = v2;
			this.lineType = Line3DType.DEFAULT;
		}

		public Line3D(Vector3D v1, Vector3D v2, Line3DType lineType) {
			this.v1 = v1;
			this.v2 = v2;
			this.lineType = lineType;
		}

		public Vector3D GetDelta() { return v2 - v1; }

		// This calculates the angle
		public float GetAngle() {
			// Calculate and return the angle
			Vector2D d = GetDelta();
			return -(float)Math.Atan2(-d.y, d.x) + Angle2D.PIHALF;//mxd //  (float)Math.PI * 0.5f;
		}
	}
}