public class Boundary
{
    public float xMin, xMax, zMin, zMax;
}
public class PlayerController : MonoBehaviour
{
    public float speed;
    public Boundary boundary;
    private void FixedUpdate()
    {
        float moveHorizontal = Input.GetAxis("Horizontal");
        float moveVertical = Input.GetAxis("Vertical");

        Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);
        Rigidbody rigidbody = GetComponent<Rigidbody>();
        rigidbody.velocity = movement * speed;

        rigidbody.position = new Vector3
            (
                Mathf.Clamp(rigidbody.position.x, boundary.xMin, boundary.xMax),
                0.0f,
                Mathf.Clamp(rigidbody.position.z, boundary.zMin, boundary.zMax)
            );

    }
}
 

如上面這段程式碼所示，在c#指令碼的指令碼控制類中，新增一個自定義的類Boundary。

如何讓這個自定義類Boundary在Unity編輯面版顯示，並可以在Unity面版隨意設定該類中欄位的值？

給自定義類新增[System.Serializable]特性。

即可在Unity面板顯示這個類的屬性，效果圖如下

完整程式碼如下圖

public class Boundary
{
    public float xMin, xMax, zMin, zMax;
}
public class PlayerController : MonoBehaviour
{
    public float speed;
    public Boundary boundary;
    private void FixedUpdate()
    {
        float moveHorizontal = Input.GetAxis("Horizontal");
        float moveVertical = Input.GetAxis("Vertical");

        Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);
        Rigidbody rigidbody = GetComponent<Rigidbody>();
        rigidbody.velocity = movement * speed;

        rigidbody.position = new Vector3
            (
                Mathf.Clamp(rigidbody.position.x, boundary.xMin, boundary.xMax),
                0.0f,
                Mathf.Clamp(rigidbody.position.z, boundary.zMin, boundary.zMax)
            );

    }
}