Repeat(float, float)

Loops the value t, so that it is never larger than length and never smaller than 0.

阅读时间1 分钟

最后更新于 1 个月前

Definition

Type: Method
Namespace: UnityEngine
Assembly: UnityEngine.CoreModule


public static float Repeat(float t, float length)

Parameters

t

float

length

float

Returns

Type	Description
float

Remarks

This is similar to the modulo operator but it works with floating point numbers. For example, using 3.0 for

and 2.5 for

length

, the result would be 0.5. With

= 5 and

length

= 2.5, the result would be 0.0. Note, however, that the behaviour is not defined for negative numbers as it is for the modulo operator.

In the example below, the value of time is restricted between 0.0 and just under 3.0. When the value of time is 3, the x position will go back to 0, and go back to 3 as time increases, in a continuous loop.


using UnityEngine;public class Example : MonoBehaviour{    void Update()    {        // Set the x position to loop between 0 and 3        transform.position = new Vector3(Mathf.Repeat(Time.time, 3), transform.position.y, transform.position.z);    }}

The example below shows different possible outputs.


using UnityEngine;public class Example : MonoBehaviour{    void Start()    {        // prints 4        Debug.Log(Mathf.Repeat(-1f, 5f));        // prints 0        Debug.Log(Mathf.Repeat(0f, 5f));        // prints 1        Debug.Log(Mathf.Repeat(1f, 5f));        // prints 0        Debug.Log(Mathf.Repeat(5f, 5f));        // prints 2        Debug.Log(Mathf.Repeat(12f, 5f));        // prints 1        Debug.Log(Mathf.Repeat(16f, 5f));        // prints 4        Debug.Log(Mathf.Repeat(19f, 5f));    }}

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