68 lines
1.9 KiB
C#
68 lines
1.9 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using TransportGame.Business;
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namespace TransportGame.Model
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{
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public class BuildingLot : IPositionable
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{
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/// <summary>
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/// Gets or sets the list of points
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/// </summary>
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public Vector2[] Points { get; set; }
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public BuildingLot()
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{
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Points = new Vector2[4];
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}
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public BuildingLot(params Vector2[] points)
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{
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Points = points;
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}
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public BuildingLot(IEnumerable<Vector2> points)
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{
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Points = points.ToArray();
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}
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public Vector2 Position
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{
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get { return Points.Aggregate((x, y) => x + y) / Points.Length; }
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}
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/// <summary>
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/// Tests if two building lots intersect
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/// </summary>
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/// <param name="a">First lot</param>
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/// <param name="b">Second lot</param>
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/// <returns></returns>
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public static bool Intersect(BuildingLot a, BuildingLot b)
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{
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return (a.Position - b.Position).LengthSq <= ConfigManager.Buildgen.LotSquareSize + ConfigManager.Buildgen.LotSpacing;
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}
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/// <summary>
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/// Tests if a building lot intersects a line segment (such as a road segment)
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/// </summary>
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/// <param name="a"></param>
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/// <param name="b"></param>
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/// <returns></returns>
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public static bool Intersect(BuildingLot a, LineSegment b)
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{
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for (int i = 0; i < a.Points.Length; i++)
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{
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int j = (i + 1 >= a.Points.Length) ? 0 : i + 1;
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LineSegment s = new LineSegment(a.Points[i], a.Points[j]);
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if (LineSegment.Intersect(s, b).HasValue)
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return true;
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}
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return false;
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}
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}
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}
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