Cannot implicitly convert int[] to float when creating an EXP bar.

Hello, I'm new to creating games. I've been following a tutorial on creating a 2D RPG in Unity. The tutorial showed how to create a health bar, but not an experience bar (though it does show creating experience).
I've been trying to create an EXP bar myself, to see if I could.
I keep getting the error "cannot implicitly convert int[] to 'float'"

Code (CSharp):

1. expBar.maxValue = playerExp.toLevelUp; // returns an error, refering to how much exp is needed to level
2.         expBar.value = playerExp.currentExp; // refering to how much exp the player currently has
3.         expText.text = "Exp: " + playerExp.currentExp + "/" + playerExp.toLevelUp; // the text I want to display to show progress to the next level

I can't seem to set the maxValue of the expBar to display how much exp the player needs to progress to the next level in the same way that I have to display the players max health:

Code (CSharp):

1. healthBar.maxValue = playerHealth.playerMaxHealth;
2.         healthBar.value = playerHealth.playerCurrentHealth;
3.         hpText.text = "Health: " + playerHealth.playerCurrentHealth + "/" + playerHealth.playerMaxHealth;

The exp toLevelUp is stored in an int[] array, which changes every time the player levels up (so level one = 20 exp needed, level 2 = 50 exp) and I just don't know how to convert this to get it to display in a way that it can be used for expBar.maxValue.

Any help will be greatly appreciated, this is my first time asking for help, first time making a game and first time coding a project.

 

I'm only guessing, because you didn't share how you store these values for real. I know you wrote down something in text, but you can be mistaken since you have difficulties to address an array. So it usually best to present the entire script to be able to diagnose your problem.
So, based this guess it should be something like this:

Code (CSharp):

1. expBar.maxValue = playerExp.toLevelUp[playerExp.currentLevel+1];

Or something like this. I guess you have something in the playerExp which refers to the current level.
Also make sure you put an if around this so it won't fail when you are on the highest possible level.

Code (CSharp):

1. if (playerExp.currentLevel < maxLevel) {
2. [...]
3. }

or something like this.

 

Ah okay, thanks for trying with what I gave originally :')
The full code for where I get the error is this:

Code (CSharp):

1. public class UIManager : MonoBehaviour
2. {
3.     public Slider healthBar;
4.     public Text hpText;
5.     public PlayerHealth playerHealth;
6.  
7.     public Slider expBar;
8.     public Text expText;
9.     public PlayerStats playerExp;
10.  
11.     private static bool uiExists;
12.  
13.     private PlayerStats playerStats;
14.     public Text levelText;
15.  
16.     // Start is called before the first frame update
17.     void Start()
18.     {
19.         if (!uiExists)
20.         {
21.             uiExists = true;
22.             DontDestroyOnLoad(transform.gameObject);
23.         }
24.         else
25.         {
26.             Destroy(gameObject);
27.         }
28.  
29.         playerStats = GetComponent<PlayerStats>();
30.     }
31.  
32.     // Update is called once per frame
33.     void Update()
34.     {
35.         healthBar.maxValue = playerHealth.playerMaxHealth;
36.         healthBar.value = playerHealth.playerCurrentHealth;
37.         hpText.text = "Health: " + playerHealth.playerCurrentHealth + "/" + playerHealth.playerMaxHealth;
38.  
39.         expBar.maxValue = playerExp.toLevelUp[playerExp.currentLevel+1]; // refering to how much exp is needed to level
40.         expBar.value = playerExp.currentExp; // refering to how much exp the player currently has
41.         expText.text = "Exp: " + playerExp.currentExp + "/" + playerExp.toLevelUp; // the text I want to display to show progress to the next level
42.  
43.         levelText.text = "Lvl: " + playerStats.currentLevel;
44.     }
45. }

I tried adding your

Code (CSharp):

1. expBar.maxValue = playerExp.toLevelUp[playerExp.currentLevel+1];

It removed the error, but didn't have the desired affect in game, the expText still not displaying the maxValue of the exp needed to next level, or the current exp the player has.

The entirety of the script used to keep track of player statistics (currently HP and EXP):

Code (CSharp):

1. public class PlayerStats : MonoBehaviour
2. {
3.     public int currentLevel;
4.  
5.     public int currentExp;
6.  
7.     public int[] toLevelUp;
8.  
9.     // Start is called before the first frame update
10.     void Start()
11.     {
12.  
13.     }
14.  
15.     // Update is called once per frame
16.     void Update()
17.     {
18.         if (currentExp >= toLevelUp[currentLevel])
19.         {
20.             currentExp -= toLevelUp[currentLevel];
21.             currentLevel++;
22.         }
23.     }
24.  
25.     public void AddExperience(int experienceToAdd)
26.     {
27.         currentExp += experienceToAdd;
28.     }
29. }

 

Change to playerStat.currentLevel I see you have that.

 

(Hoping that image loads as I don't know how forums work generally)

I inputted that and it comes out with this (Exp: 0/SystemInt32[]) rather than Exp 0/20, which would be the desired affect for level 1)

 

I've tried to create a variable called displayLevel to convert it to a string

Code (CSharp):

1. displayLevel = string.Join("", toLevelUp);

but now get the error "cannot implicitly convert string to float".
I am so confused.

 

this part

Code (CSharp):

1.   expText.text = "Exp: " + playerExp.currentExp + "/" + playerExp.toLevelUp; // the text I want to display to show progress to the next level
2.  

playerExp.toLevelUp is an array you cannot add it like this
you always have to put an index playerExp.toLevelUp[ ? ] here

Code (CSharp):

1.   expText.text = "Exp: " + playerExp.currentExp + "/" + playerExp.toLevelUp[playerExp.currentLevel];
2.  

 

this is what the code currently looks like with player.Exp.toLevelUp[playerExp.currentLevel]; which now outputs System:Single[] as I changed the array to a float, it was outputting System:Int32[] when the array was an Int. I want to be able to take the current relevant part of the array (say, 20 exp needed to level up on level 1, changes to 50 needed to level up on level 2) and output that.
Is there a way to output the current part of the array?

 

The maxValue is correct now with

Code (CSharp):

1. expText.text = "Exp: " + playerExp.currentExp + "/" + playerExp.toLevelUp[playerExp.currentLevel];

And the EXP bar fills as it should, but the display is still wrong in terms of the text.
Where is should read Exp: 0/25 it reads Exp: 0/System:Single[] and I'm just unsure how to print out the current relevant element of the array.

 

Well I'm an idiot and didn't read that correctly at all.
Should've read it more closely, changing the expText.text line was all I needed!

Thanks for the help xoxo

 

no prob, btw you can also do

Code (CSharp):

1.     expText.text = "Exp: " + playerExp.currentExp + "/" + expBar.maxValue;
2.  

since you set it above

just remember that you cant use arrays without the brackets [ ]