*

Assets/Scenes/OpticalSurface2D.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public abstract class OpticalSurface2D : MonoBehaviour
+{
+    [Serializable]
+    public struct Line {
+        public Vector2 P1;
+        public Vector2 P2;
+    }
+
+    public Line[] Shape;
+
+
+
+    public abstract bool Raycast(Ray2D ray, ref RaycastMath.RaycastResult2D result);
+
+    public static Line[] PointsToLines(Vector2[] points, bool closed) {
+        Line[] result = new Line[points.Length - (closed ? 0 : 1)];
+
+        for (int i = 0; i < points.Length - 1; i++) {
+            result[i] = new Line() { P1 = points[i], P2 = points[i + 1] };
+        }
+
+        if (closed) {
+            result[result.Length - 1] = new Line() { P1 = result[result.Length - 2].P2, P2 = result[0].P1 };
+        }
+
+        return result;
+    }
+
+
+    private void OnDrawGizmos() {
+        if (Shape == null) return;
+        if (Shape.Length < 1) return;
+
+        Gizmos.matrix = transform.localToWorldMatrix;
+        for (int i = 0; i < Shape.Length; i++) {
+
+            Gizmos.DrawLine(Shape[i].P1, Shape[i].P2);
+        }
+        Gizmos.matrix = Matrix4x4.identity;
+    }
+}