84 lines
2.3 KiB
C#
84 lines
2.3 KiB
C#
using System;
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using System.Threading.Tasks;
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using UnityEngine;
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namespace AibisDream.Utility
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{
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public static class CommonUtil
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{
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private const float Epsilon = 1e-5f;
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private static Camera _mainCam;
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/// <summary>
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/// 判断为0
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/// </summary>
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/// <param name="value">浮点数</param>
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/// <returns>是否为0</returns>
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public static bool IsZero(float value)
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{
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// 如果value小于epsilon，则认为它等于0
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return Mathf.Abs(value) < Epsilon;
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}
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/// <summary>
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/// 判断浮点数是否相等
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/// </summary>
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/// <param name="value1">value1</param>
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/// <param name="value2">value2</param>
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/// <returns>是否相等</returns>
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public static bool IsEqual(float value1, float value2)
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{
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return Mathf.Abs(value1 - value2) < Epsilon;
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}
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/// <summary>
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/// 简单延时实现
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/// </summary>
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/// <param name="delayTime">延时</param>
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/// <param name="action">函数</param>
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public static async Task Delay(int delayTime, Action action)
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{
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await Task.Delay(delayTime);
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action?.Invoke();
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}
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/// <summary>
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/// 受限数值
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/// </summary>
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/// <param name="target">目标数</param>
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/// <param name="max">上限</param>
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/// <param name="min">下限</param>
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/// <returns>结果</returns>
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public static float Limit(float target, float max, float min)
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{
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if (target <= min)
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{
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return min;
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}
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if (target >= max)
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{
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return max;
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}
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return target;
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}
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/// <summary>
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/// 获取鼠标在世界中的位置
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/// </summary>
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/// <param name="mousePoint">鼠标界面位置</param>
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/// <param name="transform">物体形状</param>
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/// <returns>世界位置</returns>
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public static Vector3 GetMouseWorldPos(Vector3 mousePoint, Transform transform)
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{
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if (!_mainCam) _mainCam = Camera.main;
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mousePoint.z = _mainCam.WorldToScreenPoint(transform.position).z;
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return _mainCam.ScreenToWorldPoint(mousePoint);
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}
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}
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}
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