public static float Floor (float f);

説明

Returns the largest integer smaller than or equal to f.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void Example() { Debug.Log(Mathf.Floor(10.0F)); // Prints 10 Debug.Log(Mathf.Floor(10.2F)); // Prints 10 Debug.Log(Mathf.Floor(10.7F)); // Prints 10 Debug.Log(Mathf.Floor(-10.0F)); // Prints -10 Debug.Log(Mathf.Floor(-10.2F)); // Prints -11 Debug.Log(Mathf.Floor(-10.7F)); // Prints -11 } }