【m】11.PointCloudTools 上传

Assets/11.PointCloudTools/Runtime/Script/PointSystem/Gizmo/CapsuleColliderGizmo.cs

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+using UnityEditor;
+using UnityEngine;
+
+[RequireComponent(typeof(CapsuleCollider))]
+public class CapsuleColliderGizmo : MonoBehaviour
+{
+    [Tooltip("Gizmo显示颜色")] public Color gizmoColor = new Color(0, 1, 0, 0.3f);
+
+    [Tooltip("是否始终显示Gizmo")] public bool alwaysShow = true;
+
+    private CapsuleCollider capsuleCollider;
+
+    private void Awake()
+    {
+        capsuleCollider = GetComponent<CapsuleCollider>();
+    }
+
+    private void OnDrawGizmos()
+    {
+# if UNITY_EDITOR
+        if (!alwaysShow && !Selection.Contains(gameObject)) return;
+#endif
+        DrawCapsuleGizmo();
+    }
+
+    private void OnDrawGizmosSelected()
+    {
+        if (alwaysShow) return;
+        DrawCapsuleGizmo();
+    }
+
+    private void DrawCapsuleGizmo()
+    {
+        if (capsuleCollider == null)
+        {
+            capsuleCollider = GetComponent<CapsuleCollider>();
+            if (capsuleCollider == null) return;
+        }
+
+        Gizmos.color = gizmoColor;
+
+        // 获取胶囊体的参数
+        Vector3 center = transform.TransformPoint(capsuleCollider.center);
+        float radius = capsuleCollider.radius * Mathf.Max(transform.lossyScale.x, transform.lossyScale.z);
+        float height = capsuleCollider.height * transform.lossyScale.y;
+        int direction = capsuleCollider.direction;
+
+        // 计算胶囊体的两个半球中心
+        Vector3 halfHeight = Vector3.zero;
+        switch (direction)
+        {
+            case 0: // X轴
+                halfHeight = Vector3.right * (height / 2 - radius);
+                radius = capsuleCollider.radius * Mathf.Max(transform.lossyScale.y, transform.lossyScale.z);
+                break;
+            case 1: // Y轴
+                halfHeight = Vector3.up * (height / 2 - radius);
+                radius = capsuleCollider.radius * Mathf.Max(transform.lossyScale.x, transform.lossyScale.z);
+                break;
+            case 2: // Z轴
+                halfHeight = Vector3.forward * (height / 2 - radius);
+                radius = capsuleCollider.radius * Mathf.Max(transform.lossyScale.x, transform.lossyScale.y);
+                break;
+        }
+
+        Vector3 topCenter = center + halfHeight;
+        Vector3 bottomCenter = center - halfHeight;
+
+        // 绘制胶囊体的圆柱部分
+        if (height > radius * 2)
+        {
+            DrawCylinder(topCenter, bottomCenter, radius, 16);
+        }
+
+        // 绘制上下两个半球
+        Gizmos.DrawSphere(topCenter, radius);
+        Gizmos.DrawSphere(bottomCenter, radius);
+    }
+
+    // 添加自定义圆柱绘制方法
+    private void DrawCylinder(Vector3 topCenter, Vector3 bottomCenter, float radius, int segments)
+    {
+        Vector3 up = (topCenter - bottomCenter).normalized;
+        Vector3 right = Vector3.Cross(up, Vector3.forward).normalized;
+        if (right.sqrMagnitude < 0.01f)
+            right = Vector3.Cross(up, Vector3.right).normalized;
+        Vector3 forward = Vector3.Cross(up, right).normalized;
+
+        for (int i = 0; i < segments; i++)
+        {
+            float angle = (i / (float)segments) * Mathf.PI * 2;
+            float nextAngle = ((i + 1) / (float)segments) * Mathf.PI * 2;
+
+            Vector3 topPoint = topCenter + (Mathf.Cos(angle) * right + Mathf.Sin(angle) * forward) * radius;
+            Vector3 topNextPoint = topCenter + (Mathf.Cos(nextAngle) * right + Mathf.Sin(nextAngle) * forward) * radius;
+            Vector3 bottomPoint = bottomCenter + (Mathf.Cos(angle) * right + Mathf.Sin(angle) * forward) * radius;
+            Vector3 bottomNextPoint =
+                bottomCenter + (Mathf.Cos(nextAngle) * right + Mathf.Sin(nextAngle) * forward) * radius;
+
+            // 绘制侧面竖线
+            Gizmos.DrawLine(topPoint, bottomPoint);
+            // 绘制顶部环线
+            Gizmos.DrawLine(topPoint, topNextPoint);
+            // 绘制底部环线
+            Gizmos.DrawLine(bottomPoint, bottomNextPoint);
+        }
+    }
+}