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[英]Unity c# Object reference not set to an instance of an Object ( Shooting Script )
[英]Unity C# Object reference not set to an instance of an object
我不断收到错误“对象引用”未设置为第64行上的对象实例的信息,我无法弄清楚需要做什么
一切都在运转,就像生活在不断地出现,计时器和分数在增长,但如果您能告诉我什么地方出了错,分数却没有增加,我将非常感激
这是我的代码:
using UnityEngine;
using System.Collections;
public class Player : MonoBehaviour {
private CountdownTimer myTimer;
private int score = 0;
private int lives = 3;
private int DEATH_Y = -10;
public Texture2D LivesLeft1;
public Texture2D LivesLeft2;
public Texture2D LivesLeft3;
public int GetScore(){
return score;
}
public int GetLives()
{
return lives;
}
private void Start()
{
myTimer = GetComponent<CountdownTimer>();
}
private void Update()
{
float y = transform.position.y;
if (y < DEATH_Y) {
MoveToStartPosition();
lives--;
}
if (score == 10)
{
Application.LoadLevel("Level2");
}
if (lives == 0)
{
Application.LoadLevel("GameOver");
}
}
private void OnGUI()
{
GUILayout.BeginHorizontal ();
DisplayLives();
int secondsLeft = myTimer.GetSecondsRemaining();//this is line 64
string timeMessage = "Seconds left = " + secondsLeft;
GUILayout.Label(timeMessage);
string scoreMessage = "Score = " + score;
GUILayout.Label (scoreMessage);
}
private void DisplayLives()
{
int playerLives = GetLives();
if (1 == playerLives) {
GUILayout.Label(LivesLeft1);
}
if (2 == playerLives)
{
GUILayout.Label(LivesLeft2);
}
if(3 == playerLives){
GUILayout.Label(LivesLeft3);
}
}
private void MoveToStartPosition()
{
Vector3 startPosition = new Vector3(0,5,0);
transform.position = startPosition;
}
/**
* what increases the score
* anything with the tag Hidden
*/
private void OnTriggerEnter(Collider c)
{
string tag = c.tag;
if("Hidden" == tag)
{
score++;
}
}
}
您确定您的GameObject具有名为CountdownTimer的组件吗? 另外,将“开始”功能更改为“唤醒”,因为该行不依赖于其他任何内容。
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