在每三次迭代中，C# [英] On every third iteration C#

问题描述

我有这个循环，每当我的变量是3的倍数时，它就会为我执行一个简单的任务，目前我必须创建一个大循环，其中包含3的每一个倍数，并具有逻辑或(3、6、9， ...).我想知道是否有更有效的方法来做到这一点.

I have this loop which is performing a simple task for me every time my variable is a multiple of 3, currently I have to create a big loop which contains every multiple of 3 with a logical OR (3, 6, 9, ...). I am wondering if there is a more efficient way of doing this.

这是我的代码段:

if (waveCounter == 3 || waveCounter == 6 || waveCounter == 9 || waveCounter == 12)
{
    amount = 0.03f;
    dayNight.lightAmout = amount;
    dayNight.light.intensity = Mathf.Lerp(dayNight.light.intensity, dayNight.lightAmout, fadeTime * Time.deltaTime);
}
else
{
   amount = 1f;
   dayNight.lightAmout = amount;
   dayNight.light.intensity = Mathf.Lerp(dayNight.light.intensity, dayNight.lightAmout, fadeTime * Time.deltaTime);
}

我的目标是摆脱在if语句中写入3的那些倍数，并且每次我的waveCounter变量是3的下一个倍数时仍然达到相同的目标.

My objective here is to get rid of writing those multiples of 3 in the if statement and still achieving the same goal every time my waveCounter variable is the next multiple of 3.

推荐答案

if((waveCounter % 3) == 0)

模运算:将数字除以3，然后检查余数.可除以3的数字没有余数(因此是==0)

Modulo arithmetic: it divides a number by 3 and checks for the remainder. A number that is divisable by 3 has no remainder (and thus ==0)

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