合并代码

2024-11-15 18:28:21 +08:00
parent 497b43a446
commit 72d1f89b54
274 changed files with 4939 additions and 1968 deletions
@@ -0,0 +1,49 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+/// <summary>
+/// 查询点算法
+/// 转角法判断点是否在多边形内
+/// </summary>
+public class AlgorithmFindPoint : ModuleAlgorithm<DataFindPoint> {
+    public readonly float FindRange = 0.01f;
+
+    protected override void Awake() => ModuleCore.AlgorithmFindPoint = this;
+
+    public override void Compute(DataFindPoint findPoint) {
+        List<DataPlate> datas = findPoint.datas;
+        for (int i = 0; i < datas.Count; i++) {
+            if (FindPlatePoint(datas[i], findPoint)) { return; }
+            if (FindPlateInside(datas[i], findPoint)) { findPoint.plate = datas[i]; }
+        }
+    }
+
+    /// <summary> 查询匹配的点 </summary>
+    private bool FindPlatePoint(DataPlate plate, DataFindPoint findPoint) {
+        List<DataPoint> points = plate.points;
+        Vector3 position = findPoint.position - plate.position;
+        for (int i = 0; i < points.Count; i++) {
+            float distance = Vector3.Distance(points[i].position, position);
+            if (distance > FindRange) { continue; }
+            findPoint.plate = plate;
+            findPoint.point = points[i];
+            return true;
+        }
+        return false;
+    }
+    /// <summary> 转角法查询位置是否在板片内 </summary>
+    private bool FindPlateInside(DataPlate plate, DataFindPoint findPoint) {
+        DataPoint[] points = plate.points.ToArray();
+        double angles = 0;
+        Vector3 position = findPoint.position - plate.position;
+        for (int i = 0; i < points.Length; i++) {
+            Vector3 a = points.LoopIndex(i + 0).position - position;
+            Vector3 b = points.LoopIndex(i + 1).position - position;
+            float angle = Vector2.SignedAngle(a, b);
+            angles += angle;
+        }
+        int normal = (int)(angles * 1000);
+        return normal > 0;
+    }
+}
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