Indexing Clarification. Need some help.

[JeffreyQ]

Hi all, i am confuse about indexing.
It uses an array with size of 1.

Lets say i use the below array as an example
a[x]

But if its size of 1, how is it able to store if x is more than 0? I thought the number of x means the current index of the array size. if x = 5 then the array size should be 6 assuming i start from 0. Am i wrong?

Please help me. Because i really don't get how indexing works. I really want to know it because it is alot more efficient than hashtables. I remember theres a tutorial somewhere, i just can't find it anymore.

 

[YourNameHere]

That what you call "size" in GUI is merely a number up to what index the array gets initialized to.

When you're having an integer variable with size 49, the Editor automatically does this:

function InitGlobals takes nothing returns nothing
    local integer i= 0
    set i=0
    loop
        exitwhen ( i > 49 )
        set udg_i[i]=0
        set i=i + 1
    endloop

endfunction

 

[JeffreyQ]

Yap i know this but to make MUI spells in GUI, alot of people use indexing instead of hashtable.

While using that, the array size is 1. And this is where i am lost because if the size is 1 it shoudn't go anything above the limit.

I am still confuse ><

 

[YourNameHere]

The size just is no size. All arrays have a size of 8192 (the last index is bugged, though).

 

[JeffreyQ]

Interesting. I think i can start trying it out. Thanks! +rep

EDIT:
A few more questions.

1. Why do people that uses index for MUI have a trigger on the top thats looks like:

• If (All Conditions are True) then do (Then Actions) else do (Else Actions)
  • If - Conditions
    • someIntegerB Equal to 0
  • Then - Actions
    • Trigger - Turn on Some Loop Trigger <gen>
  • Else - Actions

and in the loop trigger.
There is an If condition that says

• If (All Conditions are True) then do (Then Actions) else do (Else Actions)
  • If - Conditions
    • someIntegerB Equal to 0
  • Then - Actions
    • someIntegerA = 0
    • Trigger - Turn off This Trigger <gen>
  • Else - Actions

2. Wouldn't it turn off right away after turning on?

3. Why do i need to turn it on right at the start? What is the main purpose?

4. Indexing isn't really "MUI" right? assuming if i have 8193 unit casting the same spell at the same time which is over the index limit. Ya i know that number is almost impossible. But just want to clear up myself understanding this.

 

[baassee]

1. because you check the number of active instances and if there are none you have to turn on the trigger

2. it checks when you -1 the number of instances when the spell finish, if the instances reach 0 it will turn of the max instance which is used for the loop

3. not having a trigger running all the time

4. nope it isnt totally MUI as the limit is 8191 casts but if you have a recycle system it will find spots better

and also

who wants to cast 8191 instances at once ...

hope you got it clear

 

[Ciebron]

4. nope it isnt totally MUI as the limit is 8191 casts but if you have a recycle system it will find spots better

With Vjass you can excede 8191

 

[baassee]

normal JASS and GUI hashtable too but vJass is prefered and also you can use locals in GUI too ^^

 

[JeffreyQ]

I still don't understand number 1..
Why not run it when the someIntergerB is more than 0? Since if i want to make a knockback spell, all the knockback are in the loop. If its 0, whats the point of running it? Still confuse D:

 

[baassee]

when it is 0 it will be turned on as it will be +1 just after