Difference between Integer A, Integer B, custom integer?

[chasin225]

what is the differance of these 3 actions?:

• For each (Integer A) from 1 to 10, do (Actions)
  • Loop - Actions
• For each (Integer B) from 1 to 10, do (Actions)
  • Loop - Actions
• For each (Integer QB_Level) from 1 to 10, do (Actions)
  • Loop - Actions

edit: i get it now thanks for he explenation.

 

[kleinerhauck]

Each uses a different loop variable......
You can always use Integer A unless you need a loop within another loop or (and that's a reason for bugs!!) another trigger with a IntegerA-Loop is executed while an IntegerA-Loop is already running.

 

[Maker]

Custom variable is better since it's faster.

• For each (Integer A) from 1 to 10, do (Actions)
  • Loop - Actions

->

set bj_forLoopAIndex = 1
    set bj_forLoopAIndexEnd = 10
    loop
        exitwhen bj_forLoopAIndex > bj_forLoopAIndexEnd
        set bj_forLoopAIndex = bj_forLoopAIndex + 1
    endloop

• For each (Integer i) from 1 to 10, do (Actions)
  • Loop - Actions

->

set udg_i = 1
    loop
        exitwhen udg_i > 10
        set udg_i = udg_i + 1
    endloop

One less variable setting.

And when you call the variable inside the loop:

• Set ID = (Integer A)

->

set udg_ID = GetForLoopIndexA()

So that calls a function that returns the value set to bj_forLoopAIndex.

• Set ID = i

->

set udg_ID = udg_i

No function call.

 

[-Kobas-]

Integer A and B are blizzard global variables used in for functions!
It was faster for programmers to just pick 1 (usually A) variable already used with function and do what they need to do...
Still there was situations when they needed 2 functions so they added Integer B for just in case!
For function with custom variable is default one, basic thing