Question how do i get this animation to NOT play on awake?

so in my script, i have it as if the health is above 40%, hide the low health vignette by playing an animation but the thing is, when you start out the game, you have max health so it plays the animation for no reason, how do i make it so it only plays if the vignette was shown previously?
heres the script:

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.UI;
3.  
4. public class PlayerStats : MonoBehaviour
5. {
6.     [Header("Health")]
7.     public int maxHealth;
8.     private int currentHealth;
9.  
10.     [Header("References")]
11.     public Rigidbody2D playerRb;
12.     public float enemyContactKb;
13.     public Animator lowHealthVignette;
14.  
15.     Enemy enemy;
16.  
17.     // Start is called before the first frame update
18.     void Start()
19.     {
20.         currentHealth = maxHealth;
21.     }
22.  
23.     // Update is called once per frame
24.     void Update()
25.     {
26.         if (currentHealth <= 0)
27.         {
28.             Debug.Log("You ded");
29.             Time.timeScale = 0f;
30.         }
31.  
32.         if(currentHealth <= currentHealth * 0.4)
33.         {
34.             lowHealthVignette.SetBool("LowHealth", true); //Turn on vignette
35.         }
36.         else
37.         {
38.             lowHealthVignette.SetBool("LowHealth", false); //Turn off vignette
39.         }
40.     }
41.  
42.     public void TakeDamage(int damageToTake)
43.     {
44.         currentHealth -= damageToTake;
45.     }
46.  
47.     private void OnCollisionEnter2D(Collision2D collision)
48.     {
49.         if (collision.gameObject.CompareTag("Enemy"))
50.         {
51.             Debug.Log("You came into contact with an enemy");
52.             enemy = collision.gameObject.GetComponent<Enemy>();
53.             currentHealth -= enemy.contactDamage;
54.         }
55.     }
56. }
57.  

 

This line makes no sense:

Code (csharp):

1. if(currentHealth <= currentHealth * 0.4)

But I don't think it is the cause of the problem.

 

essentially it means, if you only have 40% or less of your original health, do something. so if u had 100 max health, its saying if you have 0-40 health, do the thing

 

I think you mean to check the current health against the max health. Also with your effect problem, make sure the effect isn't being play at the start for any reason. Check the object making the effect and the animator to make sure.

 

That's not what it means, because maxHealth is nowhere on that line. I believe you meant to put:

Code (csharp):

1. if(currentHealth <= (maxHealth * 0.4))

 

wops, yup ur rigiht
also, i kinda just abandoned the whole idea of animations becuase i hate doin animations and its way too confusing for me. how can i make the alpha of an image fade in through code?

 

What kind of image? If you're talking about UI, I add a CanvasGroup component and then adjust its alpha value over time.
https://docs.unity3d.com/Packages/com.unity.ugui@1.0/manual/class-CanvasGroup.html

Simple example off the top of my head:

Code (csharp):

1. public float FadeInTime = 2f;
2. private float fadeTimeSoFar = 0f;
3. public CanvasGroup CanvasGroupComponent;
4.  
5. void Update()
6. {
7.     if (fadeTimeSoFar < FadeInTime)
8.     {
9.         fadeTimeSoFar += Time.deltaTime;
10.         float percent = fadeTimeSoFar / FadeInTime;
11.         if (percent > 1f)
12.         {
13.             percent = 1f;
14.         }
15.         CanvasGroupComponent.Alpha = percent;
16.     }
17. }

 

i added the code, now for some stupid reason, when the game starts, the vignette, instead of staying at transparent, fades in, why does it do this?

heres the code

Code (CSharp):

1. using UnityEngine;
2.  
3. public class PlayerStats : MonoBehaviour
4. {
5.     [Header("Health")]
6.     public int maxHealth;
7.     private int currentHealth;
8.  
9.     [Header("Effects")]
10.     public float FadeInTime;
11.     private float fadeTimeSoFar = 0f;
12.     public float FadeOutTime;
13.     private float fadeOutTimeSoFar = 0f;
14.     public CanvasGroup CanvasGroupComponent;
15.  
16.     [Header("References")]
17.     public Rigidbody2D playerRb;
18.  
19.     Enemy enemy;
20.  
21.     // Start is called before the first frame update
22.     void Start()
23.     {
24.         currentHealth = maxHealth;
25.     }
26.  
27.     // Update is called once per frame
28.     void Update()
29.     {
30.         if (currentHealth <= 0)
31.         {
32.             Debug.Log("You ded");
33.             Time.timeScale = 0f;
34.         }
35.  
36.         if (currentHealth <= maxHealth * 0.4) //Check if you have <= 40% health
37.         {
38.             if (fadeTimeSoFar < FadeInTime) //If the vignette isn't fully faded in yet:
39.             {
40.                 fadeTimeSoFar += Time.deltaTime; //Add time to the fade in time
41.                 float percent = fadeTimeSoFar / FadeInTime; //Calculate what percentage it is at.
42.                 if (percent > 1f) //If the percent is more than 1
43.                 {
44.                     percent = 1f; //Set the percent to 1 to avoid errors
45.                 }
46.                 CanvasGroupComponent.alpha = percent; //Set the alpha to the current percentage so it can fade in
47.             }
48.         }
49.         else
50.         {
51.             if (fadeOutTimeSoFar < FadeOutTime) //If the vignette isn't fully faded out yet:
52.             {
53.                 fadeOutTimeSoFar += Time.deltaTime; //Add time to the fade out time
54.                 float percent = fadeOutTimeSoFar / FadeOutTime; //Calculate what percentage it is at.
55.                 if (percent < 0f) //If the percent is less than 0:
56.                 {
57.                     percent = 0f; //Set the percent to 0 to avoid errors
58.                 }
59.                 CanvasGroupComponent.alpha = percent; //Set the alpha to the current percentage so it can fade out
60.             }
61.         }
62.     }
63.  
64.     public void TakeDamage(int damageToTake)
65.     {
66.         currentHealth -= damageToTake;
67.     }
68.  
69.     private void OnCollisionEnter2D(Collision2D collision)
70.     {
71.         if (collision.gameObject.CompareTag("Enemy"))
72.         {
73.             Debug.Log("You came into contact with an enemy");
74.             enemy = collision.gameObject.GetComponent<Enemy>();
75.             currentHealth -= enemy.contactDamage;
76.         }
77.     }
78. }
79.  

 

The problem is you tried to rewrite the code to fade out instead of fade in, starting with line 51, but I didn't write it to do that, since I wasn't aware you were referring to the same vignette in your question about fading "an image". Line 53 is a problem, because you are adding instead of subtracting. Adding will increase the alpha of the image, instead of decrease.

 

ok so i changed line 53 to -= time.deltatime
and i changed line 13 to = 1f; did i do this part right?

how do i make the code fade out?

 

@Joe-Censored how do i rewrite it corerctly to make it fade out?

 

Just Debug.Log the values there. The goal is to get "percent" go from 1 to 0 over time. I don't have a C# compiler on this computer I'm on the forums with, so can't run it to look at what it is doing. It probably will be obvious what is currently going on, and what to change when you can see what is currently happening.

 

Code (CSharp):

1. if (currentHealth <= maxHealth * 0.4) //Check if you have <= 40% health
2.         {
3.         else
4.         {
5.             if (fadeOutTimeSoFar < FadeOutTime) //If the vignette isn't fully faded out yet:
6.             {
7.                 fadeOutTimeSoFar -= Time.deltaTime; //Add time to the fade out time
8.                 float _percent = fadeOutTimeSoFar / FadeOutTime; //Calculate what percentage it is at.
9.                 if (_percent < 0f) //If the percent is less than 0:
10.                 {
11.                     _percent = 0f; //Set the percent to 0 to avoid errors
12.                 }
13.                 CanvasGroupComponent.alpha = _percent; //Set the alpha to the current percentage so it can fade out
14.                 Debug.Log(_percent);
15.             }
16.         }

i tested this code here, it doesn't even run...help
heres the full script:

Code (CSharp):

1. using UnityEngine;
2.  
3. public class PlayerStats : MonoBehaviour
4. {
5.     [Header("Health")]
6.     public int maxHealth;
7.     public int currentHealth;
8.  
9.     [Header("Effects")]
10.     public float FadeInTime;
11.     private float fadeTimeSoFar = 0f;
12.     public float FadeOutTime;
13.     private float fadeOutTimeSoFar = 1f;
14.     public CanvasGroup CanvasGroupComponent;
15.  
16.     [Header("References")]
17.     public Rigidbody2D playerRb;
18.  
19.     Enemy enemy;
20.  
21.     // Start is called before the first frame update
22.     void Start()
23.     {
24.         currentHealth = maxHealth;
25.     }
26.  
27.     // Update is called once per frame
28.     void Update()
29.     {
30.         if (currentHealth <= 0)
31.         {
32.             Debug.Log("You ded");
33.             Time.timeScale = 0f;
34.         }
35.  
36.         if (currentHealth <= maxHealth * 0.4) //Check if you have <= 40% health
37.         {
38.             if (fadeTimeSoFar < FadeInTime) //If the vignette isn't fully faded in yet:
39.             {
40.                 fadeTimeSoFar += Time.deltaTime; //Add time to the fade in time
41.                 float percent = fadeTimeSoFar / FadeInTime; //Calculate what percentage it is at.
42.                 if (percent > 1f) //If the percent is more than 1
43.                 {
44.                     percent = 1f; //Set the percent to 1 to avoid errors
45.                 }
46.                 CanvasGroupComponent.alpha = percent; //Set the alpha to the current percentage so it can fade in
47.             }
48.         }
49.         else
50.         {
51.             if (fadeOutTimeSoFar < FadeOutTime) //If the vignette isn't fully faded out yet:
52.             {
53.                 fadeOutTimeSoFar -= Time.deltaTime; //Add time to the fade out time
54.                 float _percent = fadeOutTimeSoFar / FadeOutTime; //Calculate what percentage it is at.
55.                 if (_percent < 0f) //If the percent is less than 0:
56.                 {
57.                     _percent = 0f; //Set the percent to 0 to avoid errors
58.                 }
59.                 CanvasGroupComponent.alpha = _percent; //Set the alpha to the current percentage so it can fade out
60.                 Debug.Log(_percent);
61.             }
62.         }
63.     }
64.  
65.     public void TakeDamage(int damageToTake)
66.     {
67.         currentHealth -= damageToTake;
68.     }
69.  
70.     private void OnCollisionEnter2D(Collision2D collision)
71.     {
72.         if (collision.gameObject.CompareTag("Enemy"))
73.         {
74.             Debug.Log("You came into contact with an enemy");
75.             enemy = collision.gameObject.GetComponent<Enemy>();
76.             currentHealth -= enemy.contactDamage;
77.         }
78.     }
79. }
80.