[JASS] hashtable question

[deathismyfriend]

hello i was wondering if it is possible to loop threw all of the values in a hashtable ? just loop through the parent key. the childkey will stay the same

 

[Almia]

What do you mean loop? like an array?

 

[PurgeandFire]

It is possible, but not inherently. You have to keep track of all the values you use. I would do it in a linked list.

struct Example
    private thistype next
    private thistype prev
    
    private integer parentKey

    method destroy takes nothing returns nothing
        set this.next.prev = this.prev // remove the node from the list
        set this.prev.next = this.next

        call this.deallocate() 
    endmethod

    static method loopThrough takes nothing returns nothing
        // this will demonstrate how to loop through the parent Keys
        local thistype node = thistype(0).next
        loop
            exitwhen node == 0
            call SaveUnitHandle(someHashTable, this.parentKey, 0, GetTriggerUnit())
            // saves the trigger unit under each parent key
            set node = node.next
        endloop
    endmethod

    static method create takes unit u returns thistype
        local thistype this = thistype.allocate()

        set this.next = thistype(0).next // enter the node in the list
        set this.prev = thistype(0)
        set this.next.prev = this
        set thistype(0).next = this

        set this.parentKey = GetHandleId(u) // set the parent key to whatever
                                                          // just an example
        return this
    endmethod
endstruct

Of course, this doesn't really have any practical use. However, it shows how to make a list of the instances and loop through the parent keys.

 

[Almia]

^ why not custom Alloc

 

[PurgeandFire]

Eh you can but it inflates code when you're giving an example. It is distracting.

 

[deathismyfriend]

i was just looking to save handles into a hashtable and every 1 second or whatever get each handle and do actions

 

[PurgeandFire]

If you know what the indexes are already (such as if they are in an order of 1, 2, 3, 4, etc.) you can. However, if there is no pattern then you have to either use a linked list or put the indexes into an integer array and loop through them.

 

[deathismyfriend]

Thts what I had to do was put them Into array and loop through them thx tho I will give rep to everyone later