Why is this always returning zero?

Questions & Answers
1

I have the following snippet of code:

using UnityEngine;

public class TestScript : MonoBehaviour 
{
	public float heightScale;
	public float xScale;

	void Start()
	{
		for(int x = 0; x <= 25; ++x)
		{
			float height = heightScale * Mathf.Floor(Mathf.PerlinNoise(xScale * x, 0));
			print(height);
		}
	}
}

Whenever I input any values for heightScale, and xScale, I always get an output of 0 twenty-five times in the console. Can anyone provide an explanation as to why this is happening?

2

Because Mathf.PerlinNoise() returns a value between 0.0 - 1.0, so Mathf.Floor() of that will always be 0.