45 lines
1.2 KiB
C#
45 lines
1.2 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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public class CircleSurface : OpticalSurface2D
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{
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public float Radius;
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public int ViewSamples = 15;
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void Start()
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{
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}
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void Update()
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{
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}
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private void OnValidate() {
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Shape = PointsToLines(GetGeometry(), true);
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}
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private Vector2[] GetGeometry() {
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Vector2[] result = new Vector2[ViewSamples];
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float da = Mathf.PI * 2 / ViewSamples;
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for (int i = 0; i < ViewSamples; i++) {
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float angle = da * i;
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result[i] = new Vector2(Mathf.Cos(angle) * Radius, Mathf.Sin(angle) * Radius);
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}
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return result;
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}
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public override bool Raycast(Ray2D ray, ref RaycastMath.RaycastResult2D result) {
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var localSpaceRay = new Ray2D( transform.InverseTransformPoint(ray.origin), transform.InverseTransformVector(ray.direction).normalized);
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if (RaycastMath.RaycastCircle(localSpaceRay, Radius, ref result)) {
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result.Point = transform.TransformPoint(result.Point);
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result.Normal = transform.worldToLocalMatrix.MultiplyVector(result.Normal).normalized;
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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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