methods extending array

struct playerdata extends array //syntax to declare an array struct
    integer a
    integer b
    integer c
endstruct

function init takes nothing returns nothing
 local playerdata pd

    set playerdata[3].a=12  //modifying player 3's fields.
    set playerdata[3].b=34  //notice it behaves as a global array
    set playerdata[3].c=500

    set pd=playerdata[4]
    set pd.a=17             //modifying player 4's fields.
    set pd.b=111            //yep, this is also valid
    set pd.c=501
endfunction

function updatePlayerStuff takes player p returns nothing
 local integer i=GetPlayerId(p)

    //some random function.
    set playerdata[i].a=playerdata[i].b

endfunction

call PD[i].setPlaying( true )

library PlayerData

    globals
        PlayerData PD
    endglobals

    struct PlayerData extends array
        private integer team
        private integer best_time
        private integer player_id
        private integer unit_count
        private integer lap_count
        private integer selector_num
        private boolean playing
        
        method setTeam takes integer team returns nothing
            set this.team = team
        endmethod
        
        method getTeam takes nothing returns integer
            return this.team
        endmethod
        //----------------------------------------------
        
        method setTime takes integer time returns nothing
            set this.best_time = time
        endmethod
        
        method getTime takes nothing returns integer
            return this.best_time
        endmethod
        //----------------------------------------------
        
        method setId takes integer newId returns nothing
            set this.player_id = newId
        endmethod
        
        method getId takes nothing returns integer
            return this.player_id
        endmethod
        //----------------------------------------------
        
        method resetUnitCount takes nothing returns nothing
            set this.unit_count = 0
        endmethod
        
        method addUnitCount takes nothing returns nothing
            set this.unit_count = this.unit_count + 1
        endmethod
        
        method getUnitCount takes nothing returns integer
            return this.unit_count
        endmethod
        //----------------------------------------------
        
        method resetLapCount takes nothing returns nothing
            set this.lap_count = 0
        endmethod
        
        method addLapCount takes nothing returns nothing
            set this.lap_count = this.lap_count + 1
        endmethod
        
        method getLapCount takes nothing returns nothing
            return this.lap_count
        endmethod
        //----------------------------------------------
        
        method addSelectorNum takes nothing returns nothing
            set this.selector_num = this.selector_num + 1
        endmethod
        
        method subSelectorNum takes nothing returns nothing
            set this.selector_num = this.selector_num - 1
        endmethod
        
        method getSelectorNum takes nothing returns integer
            return this.selector_num
        endmethod
        //----------------------------------------------
        
        method setPlaying takes nothing returns nothing
            set this.playing = true
        endmethod
        
        method isPlaying takes nothing returns boolean
            return this.playing
        endmethod
        //----------------------------------------------
        
        
        method remakeGame takes nothing returns nothing
            local integer i = 0
            
            loop
                set this.team = 0
                set this.best_time = 0
                set this.player_id = 0
                set this.unit_count = 0
                set this.lap_count = 0
                set i = i + 1
                exitwhen i == MAX_PLAYERS
            endloop
        endmethod
    endstruct

endlibrary