[Unity]限制一个值的大小（Clamp以及Mathf）

如何限制一个物体的运动范围？

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• 代码实例

public float xMin, xMax, zMin, zMax;
rigidbody.position = new Vector3(
            Mathf.Clamp(rigidbody.position.x,xMin,xMax),
            0.0f,
            Mathf.Clamp(rigidbody.position.z,zMin,zMax)
            );

通过上述代码我们可以限制其在x轴以及z轴的运动范围，其范围大小我们可以在unity editor中进行输入。

关于Mathf类

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• Description
  
  A collection of common math functions.

• Static Properties

属性名	简介
Deg2Rad	Degrees-to-radians conversion constant (Read Only).
Epsilon	A tiny floating point value (Read Only).
Infinity	A representation of positive infinity (Read Only).
NegativeInfinity	A representation of negative infinity (Read Only).
PI	The infamous 3.14159265358979… value (Read Only).
Rad2Deg	Radians-to-degrees conversion constant (Read Only).

- Static Methods(仅包含一些常用的方法，需要查询则转向官方手册)

函数名	简介
Abs	Returns the absolute value of f.
Clamp	Clamps a value between a minimum float and maximum float value.
Sin	Returns the sine of angle f.
Cos	Returns the cosine of angle f.
Log	Returns the logarithm of a specified number in a specified base.

还有一些其他的函数想要查看可以查阅官方文档。