CubeBar.cs

using UnityEngine;


public class CubeBar : MonoBehaviour
{
    [SerializeField, Range(0, 1)]
    float m_value;

    // キューブ付ける
    [SerializeField]
    GameObject m_bar;

    [SerializeField]
    Vector3 m_size = Vector3.one;

    private void OnValidate()
    {
        if (m_value == 0)
        {
            m_bar.SetActive(false);
        }
        else
        {
            m_bar.SetActive(true);
            m_bar.transform.localScale = new Vector3(m_value * m_size.x, 1.0f * m_size.y, 1.0f * m_size.z);
            m_bar.transform.localPosition = new Vector3(m_bar.transform.localScale.x * 0.5f, 0, 0);
        }
    }
}