ok, so I’m trying to use classes to create a group of vars that define specific level parameters. Then I want to be able to run the same function on the classes.
Problem is, the function’s variables can’t be typed to one specific class, and if I don’t type the variable, I get a “‘variable’ is not a member of ‘Object’”
here’s basically what I’m trying to do:
class Level01Stats{
var 1 = 0;
var 2 = 0;
etc....
}
class Level02Stats{
var 1 = 0;
var 2 = 0;
etc....
}
var level01 : Level01Stats;
var level02 : Level01Stats;
function Update(){
DoData(level01);
DoData(level02);
}
function DoData(currentLevel){
var dataprocessing = CheckData(currentLevel);
}
Just to complicate things, I’m also doing this stuff in separate scripts (which all work if I type the currentLevel variable).
Is there a better way to do this? I’d rather not have hundreds of lines of code to run the same function…
Unfortunately, I can’t find the JavaScript syntax for interfaces (google has failed me!) so hopefully one of the gurus here can chime in to supply that. But in C#:
public interface LevelStats
{
int SomeVar1;
int SomeVar2;
}
public class Level01Stats : LevelStats
{
public int SomeVar1;
public int SomeVar2;
}
public class Level02Stats : LevelStats
{
public int SomeVar1;
public int SomeVar2;
}
public Level01Stats level01;
public Level02Stats level02;
private void Update()
{
DoData(level01);
DoData(level02);
}
private void DoData(LevelStats currentLevel)
{
Debug.Log("SomeVar1: " + currentLevel.SomeVar1);
}
Notice that the DoData is typed against the LevelStats interface and not against the concrete class Level01Stats or Level02Stats.
There are other ways of doing this: you could have created a base class instead of an interface and shared the common properties. I suggest you do some googlings for “polymorphism”.
This page shows interfaces in JS; however, are Level01Stats and Level02Stats actually the same? If so, it seems to me that you’d be better off just using an array.
Thanks for the link, that was the page I was trying to look for. (I think I was googling “Javascript update” instead of “Mono upgrade”)
Yeah, I thought he wanted an interface (same name variables, but different declarations) If these stats are supposed to be the same:
public class LevelStats
{
var SomeVar1 : int;
var SomeVar1 : int;
}
var level01 : LevelStats;
var level02 : LevelStats;
function Update()
{
DoData(level01);
DoData(level02);
}
function DoData(currentLevel : LevelStats)
{
Debug.Log("SomeVar1: " + currentLevel.SomeVar1);
}
And definitely utilize arrays if possible if you’re going to be managing a lot of levels.
I think Arrays are the right way to go. The main reason I was using classes was so that I could have an easy method to manage all the level data in the inspector, but after reading up on BuiltIn Arrays, I learned that they can do it too.
Since most of the data is Vector3 info (for now) I think I can come up with code for the strings that I was using, since there’s only a handful of choices the strings represent anyway.
Oh, and interfaces won’t work, cause I’m using Unity iPhone 1.7. I’d have to pay the $400 to upgrade to Unity3 to get the interfaces stuff…
As I said, why don’t you use an array of the LevelStats class?
class LevelStats {
var someVar1 : int;
var someVar2 : int;
}
private var levelStats : LevelStats[];
function Start () {
levelStats = new LevelStats[10]; // Assuming you have 10 levels
}
Just an oversight/typo on Eric’s part, he left out the [ ] array brackets:
class LevelStats
{
var var1 : int;
var var2 : Vector3;
var var3 : string;
}
private var levelStats : LevelStats[];
function Start () {
levelStats = new LevelStats[10]; // Assuming you have 10 levels
for (var i : int = 0; i < levelStats.Length; i++)
{
levelStats[i] = new LevelStats();
}
//level 1
levelStats[0].var1 = 1;
levelStats[0].var2 = new Vector3(1, 1, 1);
levelStats[0].var3 = "Level 1";
}
Not necessarily the way I would go about initializing your levels, but demonstrates your question as to differently typed fields and accessing their values.
I really would like to store all the individual level data as their own classes to keep things easy to edit in the inspector. How would I go about assigning the variables without having to go level by level?
assuming:
class LevelStats
{
var var1 : int;
var var2 : Vector3;
var var3 : string;
}
class Level01
{
var var1 : int = 10;
var var2 : Vector3 = (3,2,1);
var var3 : string = "triangle";
}
private var levelStats : LevelStats[];
private var level01 : Level01;
class LevelStats
{
var var1 : int;
var var2 : Vector3;
var var3 : string;
}
var levelStats : LevelStats[];
var level01 : LevelStats;
var level02 : LevelStats;
etc...
function Start(){
levelStats = new LevelStats[10];
levelStats[0] = level01;
levelStats[1] = level02;
etc....
}
This way I can have the level stats editable inside the inspector in a nice cleanly sorted way, and have the level stats info be available where I need it.
I did a quick test of it, and it seems to work just fine…
By the way, a hint for arrays of classes like this is that is you option-click on the arrow to expand the LevelStats array, all the sub-elements will be automatically expanded too, so you don’t have to open them all individually.
