Basics - Timers

[NEL]

Part 1

Create a timer that fires a function "foo" after 2 seconds expired after map initialization.
In function "foo" the expired time must be printed on screen and the expired timer destroyed.

//! zinc
library Timers {
    private {
        timer Timer = CreateTimer();
       
        function foo() {
            DisplayTextToPlayer( GetLocalPlayer(), 0, 0, 
                R2S( TimerGetElapsed( Timer ) ) + " expired time."
            );
           
            DestroyTimer( Timer );
            Timer = null;
        }
       
        function onInit() {
            TimerStart( Timer, 2, false, function foo );
        }
    }
}
//! endzinc

---

Part 2

Following global variables must be declared and used (<type> , <name>):

1. hashtable Hash

Create a unit on map initialization.
Create a timer on map initialiaztion.

The unit must be saved into hashtable, using the timer as ParentKey, which means that the used index must be directly related to the timer object itself.

The timer should periodically (each second) call a function "DamageUnit", which goal is to retrieve the saved unit from hashatable, and to decrease it's life by "10".

In case the unit is dead, the timer must be destroyed.

//! zinc
library Timers {
    private {
        timer Timer = CreateTimer();
        hashtable hash = InitHashtable();
       
        function DamageUnit() {
            integer h = GetHandleId( Timer );
            unit u = LoadUnitHandle( hash, h, 0 );
            real r = GetWidgetLife( u ) - 10;
           
            if( GetUnitState( u, UNIT_STATE_LIFE) <= 0 ) {   
                FlushChildHashtable( hash, h );
                DestroyTimer( Timer );
                Timer = null;
            } else {
                SetWidgetLife( u, r );
            }
            u = null;
        }
       
        function onInit() {
            SaveUnitHandle( hash, GetHandleId( Timer ), 0, 
                CreateUnit( Player( 0 ), 'njks', 0, 0, 0 )
            );
           
            TimerStart( Timer, 1, true, function DamageUnit );
        }
    }
}
//! endzinc

 

[IcemanBo]

Yep, unit is correctly attached, solved.