53 lines
1.9 KiB
C#
53 lines
1.9 KiB
C#
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using UnityEngine;
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namespace Utils
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{
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public static class MousePosition
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{
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/// <summary>
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/// 获取鼠标的屏幕位置（以像素为单位）。
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/// </summary>
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/// <returns>鼠标的屏幕位置 (Vector2)。</returns>
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public static Vector2 GetScreenPosition()
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{
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return Input.mousePosition;
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}
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/// <summary>
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/// 获取鼠标的二维世界位置（基于主摄像机的屏幕到世界转换）。
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/// </summary>
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/// <param name="camera">用于计算的摄像机，默认为主摄像机。</param>
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/// <returns>鼠标的二维世界位置 (Vector2)。</returns>
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public static Vector2 GetWorldPosition(Camera camera = null)
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{
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// 如果未指定摄像机，则使用主摄像机
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if (!camera)
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{
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camera = Camera.main;
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}
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// 获取鼠标屏幕位置
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var mouseScreenPosition = Input.mousePosition;
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// 将屏幕坐标转换为世界坐标
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var worldPosition = camera.ScreenToWorldPoint(mouseScreenPosition);
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// 返回二维坐标 (忽略 z 轴)
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return new Vector2(worldPosition.x, worldPosition.y);
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}
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/// <summary>
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/// 获取鼠标的二维世界位置并进行整数吸附（基于主摄像机的屏幕到世界转换）。
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/// </summary>
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/// <param name="camera">用于计算的摄像机，默认为主摄像机。</param>
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/// <returns>吸附后的二维世界位置 (Vector2Int)。</returns>
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public static Vector3Int GetSnappedWorldPosition(Camera camera = null)
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{
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// 获取世界位置
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var worldPosition = GetWorldPosition(camera);
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// 对世界位置进行整数吸附
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return Vector3Int.RoundToInt(worldPosition);
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}
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}
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}
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