Keys

key is a special vJass type that is meant to generate unique integer constants you can use in various ways, it is mostly intended to be used for key generation for warcraft 3's hashtable handle type.

Whenever you use the key type to declare a variable, a unique integer number is assigned to it. You may add the constant keyword for extra readability if you want.

scope Tester initializer test

    globals
                 key AAAA
        private  key BBBB // yes it is just another type, so you can have
        public   key CCCC // public or private ones...
    
        constant key DDDD  //correctly describe it as a constant (not necessary)
    endglobals
    
    private function test takes nothing returns nothing
        local hashtable ht = InitHashtable()
        call SaveInteger(ht, AAAA, BBBB, 5)
        call SaveInteger(ht, AAAA, CCCC, 7)
        call SaveReal(ht, AAAA, DDDD, LoadInteger(ht,AAAA, BBBB) * 0.05 )
        call BJDebugMsg( R2S( LoadReal(ht,AAAA,DDDD) ) )
        
        call BJDebugMsg( I2S(BBBB) ) // will show two numbers, and
        call BJDebugMsg( I2S(CCCC) ) // the numbers will be different...
    endfunction
    
endscope

Last modified: 16 October 2024