problem with list.length

Unity Engine
1

I am using a list to hold the transform.position.x location of a bunch of game objects and then i want to go through the list with a for loop. However for some reason i keep getting an error saying ‘length’ is not a member of ‘System.Collections.Generic.List.’.
here is what i have

import System.Collections.Generic;
var spawnPositions : List.<float> = new List.<float>(); 

function SpawnBlocks(l : float){				
												
	spawnPositions.Add(l);
	
	for (var i = 0; i < spawnPositions.length; i++){
		if(spawnPositions[i] == 2){
			// not doing anything here at the moment 
	         }
	
		Instantiate(numberBlock,Vector3(l,7.2+(count * blockSize),0),Quaternion.identity);
	}
	
	
}
2

Lists uses .Count

More information here: List<T>.Count Property (System.Collections.Generic) | Microsoft Learn

3 Likes
3

I tried using .Count but the for loop was giving me really weird results, if there was only 2 objects in the list it would spawn 3 blocks, and when there were 3 objects in the list it would spawn 6 and so on. and i’m not sure so i thought it was a problem with how Count works? sorry i’m new to using Lists.

4

Where are you calling SpawnBlocks? Count should give you the number of objects currently in the list. I’ve been using Count for a lot of things and haven’t encountered that problem.

5

Oh… i was having each object call it so the for loop was getting run multiple times. TY for the help

6

Hey, I know I’m a little bit late…but for new programmers: you have to note that C# is Case Sensitive language. You’ve written “length”, but it must “Length”!

7

You’re not a little late, you’re necroing a thread that is 10 years old. Please don’t do this.

https://discussions.unity.com/t/757848

1 Like