Я играю в игру, и у меня есть главное меню с кнопкой запуска, которая отлично работает.Единственная проблема заключается в том, что вы можете видеть фон, поэтому я добавил другое изображение, называемое «fadeImage», и я хочу, чтобы оно было таким, чтобы всякий раз, когда функция, отвечающая за обнаружение при каждом нажатии, исчезала в изображении, называемом «fadeImage».Я пытался использовать GetComponent и GetGameObject и всякий раз, когда я использую CrossFade Alpha, я получаю ошибку Object reference not set to instance of object в строке 51. Вот мой код
using UnityEngine;
using System.Collections;
using UnityEngine.Audio;
using UnityEngine.SceneManagement;
using UnityEngine.UI;
public class StartOptions : MonoBehaviour
{
public int sceneToStart = 1; //Index number in build settings of scene to load if changeScenes is true
public bool changeScenes; //If true, load a new scene when Start is pressed, if false, fade out UI and continue in single scene
public bool changeMusicOnStart; //Choose whether to continue playing menu music or start a new music clip
public Image fadeImage;
[HideInInspector] public bool inMainMenu = true; //If true, pause button disabled in main menu (Cancel in input manager, default escape key)
[HideInInspector] public Animator animColorFade; //Reference to animator which will fade to and from black when starting game.
[HideInInspector] public Animator animMenuAlpha; //Reference to animator that will fade out alpha of MenuPanel canvas group
public AnimationClip fadeColorAnimationClip; //Animation clip fading to color (black default) when changing scenes
[HideInInspector] public AnimationClip fadeAlphaAnimationClip; //Animation clip fading out UI elements alpha
private PlayMusic playMusic; //Reference to PlayMusic script
private float fastFadeIn = .01f; //Very short fade time (10 milliseconds) to start playing music immediately without a click/glitch
private ShowPanels showPanels; //Reference to ShowPanels script on UI GameObject, to show and hide panels
void Awake()
{
//Get a reference to ShowPanels attached to UI object
showPanels = GetComponent<ShowPanels> ();
//Get a reference to PlayMusic attached to UI object
playMusic = GetComponent<PlayMusic> ();
fadeImage = GetComponent<Image>();
}
public void StartButtonClicked()
{
//If changeMusicOnStart is true, fade out volume of music group of AudioMixer by calling FadeDown function of PlayMusic, using length of fadeColorAnimationClip as time.
//To change fade time, change length of animation "FadeToColor"
fadeImage.CrossFadeAlpha(1.0f, 1.0f, true);
if (changeMusicOnStart)
{
playMusic.FadeDown(fadeColorAnimationClip.length);
}
//If changeScenes is true, start fading and change scenes halfway through animation when screen is blocked by FadeImage
if (changeScenes)
{
//Use invoke to delay calling of LoadDelayed by half the length of fadeColorAnimationClip
Invoke ("LoadDelayed", fadeColorAnimationClip.length * .5f);
//Set the trigger of Animator animColorFade to start transition to the FadeToOpaque state.
animColorFade.SetTrigger ("fade");
}
//If changeScenes is false, call StartGameInScene
else
{
//Call the StartGameInScene function to start game without loading a new scene.
StartGameInScene();
}
}
void OnEnable()
{
SceneManager.sceneLoaded += SceneWasLoaded;
}
void OnDisable()
{
SceneManager.sceneLoaded -= SceneWasLoaded;
}
//Once the level has loaded, check if we want to call PlayLevelMusic
void SceneWasLoaded(Scene scene, LoadSceneMode mode)
{
//if changeMusicOnStart is true, call the PlayLevelMusic function of playMusic
if (changeMusicOnStart)
{
playMusic.PlayLevelMusic ();
}
}
public void LoadDelayed()
{
//Pause button now works if escape is pressed since we are no longer in Main menu.
inMainMenu = false;
//Hide the main menu UI element
showPanels.HideMenu ();
//Load the selected scene, by scene index number in build settings
SceneManager.LoadScene (sceneToStart);
}
public void HideDelayed()
{
//Hide the main menu UI element after fading out menu for start game in scene
showPanels.HideMenu();
}
public void StartGameInScene()
{
//Pause button now works if escape is pressed since we are no longer in Main menu.
inMainMenu = false;
//If changeMusicOnStart is true, fade out volume of music group of AudioMixer by calling FadeDown function of PlayMusic, using length of fadeColorAnimationClip as time.
//To change fade time, change length of animation "FadeToColor"
if (changeMusicOnStart)
{
//Wait until game has started, then play new music
Invoke ("PlayNewMusic", fadeAlphaAnimationClip.length);
}
//Set trigger for animator to start animation fading out Menu UI
animMenuAlpha.SetTrigger ("fade");
Invoke("HideDelayed", fadeAlphaAnimationClip.length);
Debug.Log ("Game started in same scene! Put your game starting stuff here.");
}
public void PlayNewMusic()
{
//Fade up music nearly instantly without a click
playMusic.FadeUp (fastFadeIn);
//Play music clip assigned to mainMusic in PlayMusic script
playMusic.PlaySelectedMusic (1);
}
}
Кнопка запуска работает всякий раз, когда я удаляю любой код, ссылающийся на изображение, нокогда я не получаю сообщение об ошибке, и кнопка «Пуск» просто остается синей, что должно происходить только тогда, когда вы наведете на нее курсор мыши.