Version: 2020.3
public static float DistanceToCube (Vector3 position, Quaternion rotation, float size);

参数

position Position of the cube.
rotation Rotation of the cube.
size Size of the cube.

返回

float Distance from mouse to cube in pixels.

描述

Returns the distance in pixels from the mouse pointer to a cube.

Calculates the screen space distance from the mouse pointer to a cube at given world space position with the given rotation and size.

Returns zero when mouse pointer is directly over the cube.

使用当前摄像机确定距离。

using UnityEngine;
using UnityEditor;

public class ExampleScript : MonoBehaviour { }

// Displays cube in scene view, and distance from mouse // to the cube. [CustomEditor(typeof(ExampleScript))] public class ExampleEditor : Editor { public void OnSceneGUI() { var t = target as ExampleScript; var tr = t.transform; var position = tr.position; var rotation = tr.rotation; var size = 1.0f; // draw a cube in scene Handles.color = Color.yellow; Handles.CubeHandleCap(0, position, rotation, size, Event.current.type); // calculate distance from mouse to cube, and display it var distance = HandleUtility.DistanceToCube(position, rotation, size); GUI.color = Color.black; Handles.Label(position, distance.ToString("F0")); // make scene view repaint on mouse move if (Event.current.type == EventType.MouseMove) Event.current.Use(); } }