Swift, Generating Array Variables of a Numbered List - arrays

Question

I'm making a simple game in swift and xcode and I ran into this problem that I can't figure out. Because I have so many levels, the code locks up indexing and slows down the whole program. I get a color wheel spinning for a few minutes but it never crashes. Just takes several minutes everytime I type in a few characters. Strange, but xcode has always had it's bugs right?
Each Button ("button1, button2..." below) gets a single number from "level1:Array". It's like a code that fills in the button's value for the game. There are only 4 buttons, but the numbers should be able to change as they each have their own variables.
I want to generate this for every level. I should be able to generate something like "button1 = level#[0]" where # is replaced by "userLevel". Changing to a string and doing something like "button1 = ("level(userLevel)") as! Array... doesn't seem to work. Look below and use my terminology when giving examples if you can. Thanks!
Here's the example:
let level1:Array = [9,7,4,1] // current puzzle, to go directly into button vars below (button1,button2,ect)
var userLevel = 1 // current user's level
if userLevel == 1 {
print("making Level 1, setting buttons to value from array")
button1 = level1[0]
button2 = level1[1]
button3 = level1[2]
button4 = level1[3]
}
Now, since level# is repeated so often (for each level as the number progresses) I would rather just make it something like this:
//this doesn't work in swift, but what else can I do?
if userLevel > 0 {
button1 = level\(userLevel)[0]
button2 = level\(userLevel)[1]
button3 = level\(userLevel)[2]
button4 = level\(userLevel)[3]
}
Is there an easy way to do this? Thanks!
-GG

Answer 1

Try using a for-in loop. Create an array of the buttons, and then
var index = 0
for button in buttons {
button = level1[index]
index++
}
EDIT since you want both the user level and the level number to increase, I suggest you define the levels like this. (Make sure that the number of buttons is equal to the number of userLevels, otherwise you will have problems)
var array = [1,2,3]
let levels = [1:[1,3,8],2:[3,6,4],3:[4,2,5]]
var index = 0
if array.count == levels.count {
for number in array {
array[index] = levels[index+1]![index]//The second index can be 0 if you want
index++
}
}
//array = [1,6,5]
// You could create a second index to match the number of levels within the main user level.
In this case, assume array to be your array of buttons
EDIT 2 :)
I've made a function that will allow you to assign all the levels to your array for a specific userLevel, since I see that is what you want
let levels = [1:[1,3,8],2:[3,6,4],3:[4,2,5]]
func assignValuesToArray(levelNo:Int) -> [Int] {
var array: [Int] = []
if (levelNo > 0) && (levelNo <= levels.count) {
for (level,levelArray) in levels {
if level == levelNo {
for value in levelArray {
array.append(value)
}
}
}
return array
} else {
print("This Level number does not exist")
return []
}
}
var finalArray = assignValuesToArray(2)
print(finalArray) // Returns [3,6,4]
As you can see from this example, you will return your array of buttons from the function, and you can assign the returned array values to whatever you like.