Raising/Lowering heights with a timer

I made this nice and easy code that raises or lowers units based on a timer.
You set the height which the unit will stop moving/die (you choose if he dies based on a boolean) and what speed he moves at.

Here is the code with more explenations inside it

//****************************************************************************************
// Move unit's height with timers
// call goingdown(whichUnit,speed,deadheight,kill)
//
// Warning ! The dead height CANNOT BE 0 ! (I think this is a bug in warcraft)
// If you want your units to die/stop on the ground, make the deadheight=1
//
// If you want the unit to go up, its height should be -lower- then the deadheight and vice versa.
//
// Remember: to calculate speed per second, do your speed value * 50 !


function goingdowntimer takes nothing returns nothing
       local timer t = GetExpiredTimer()
       local boolean kill = GetHandleBoolean(t, "kill")
       local real deadheight = GetHandleReal(t, "deadheight")
       local unit whichUnit = GetHandleUnit(t, "whichUnit")
       local real speed = GetHandleReal(t, "speed")
       local real whichUnitStartheight = GetHandleReal(t, "whichUnitStartheight")
       local real whichUnitHeight = GetUnitFlyHeight(whichUnit)
       if deadheight > whichUnitStartheight then
            if whichUnitHeight < deadheight then
                call SetUnitFlyHeight(whichUnit, whichUnitHeight+speed, 1000000)
            else
                call FlushHandleLocals(t)
                call DestroyTimer(t)
                if kill == true then
                    call KillUnit(whichUnit)
                endif
            endif
elseif deadheight < whichUnitStartheight then
            if whichUnitHeight > deadheight then
                call SetUnitFlyHeight(whichUnit, whichUnitHeight-speed, 1000000)
            else
                call FlushHandleLocals(t)
                call DestroyTimer(t)
                call KillUnit(whichUnit)
            endif
       endif
       set t = null
       set whichUnit = null
endfunction
function goingdown takes unit whichUnit, real speed, real deadheight, boolean kill returns nothing
       local timer t = CreateTimer()
       local real whichUnitStartheight = GetUnitFlyHeight(whichUnit)
       call SetHandleBoolean(t, "kill", kill)
       call SetHandleReal(t, "whichUnitStartheight", whichUnitStartheight)
       call SetHandleReal(t, "deadheight", deadheight)
       call SetHandleHandle(t, "whichUnit", whichUnit)
       call SetHandleReal(t, "speed", speed)
       call TimerStart(t, 0.02, true, function goingdowntimer)
       set t = null
endfunction

Example raising units and killing them when they get to the max height you want

function Example_Actions takes nothing returns nothing
    local unit whichUnit = GetTriggerUnit()
    call goingdown(whichUnit,10,800,true) // WhichUnit will raise at 500 per second untill
                                          // he gets to a height of 800 and then he will die
endfunction

//==== Init Trigger NewTrigger ====
function InitTrig_Example takes nothing returns nothing
    set gg_trg_Example = CreateTrigger()
    call TriggerRegisterAnyUnitEventBJ( gg_trg_Example, EVENT_PLAYER_UNIT_SPELL_EFFECT )
    call TriggerAddAction(gg_trg_Example, function Example_Actions)
endfunction

Example lowering units and not killingthem when they get to the max (min) height you want

function Example_Actions takes nothing returns nothing
    local unit whichUnit = GetTriggerUnit()
    call goingdown(whichUnit,5,1,false) // WhichUnit will get lowerd at 250 per second untill
                                          // he gets to a height of 1
endfunction

//==== Init Trigger NewTrigger ====
function InitTrig_Example takes nothing returns nothing
    set gg_trg_Example = CreateTrigger()
    call TriggerRegisterAnyUnitEventBJ( gg_trg_Example, EVENT_PLAYER_UNIT_SPELL_EFFECT )
    call TriggerAddAction(gg_trg_Example, function Example_Actions)
endfunction

I will say it again, please notice that the lowering/raising is based on the unit's current height which means that if you give him a value higher then his height - he will be flying up, if you give him a lower value then his height, he will descend down.

This is useless due to the 'rate' parameter on SetUnitFlyHeight. (Except for the Kill, but that is very easy to do since rate works fine anyways)

Also, 0 rate works as instant as well as a very large number.

0 rate is better than a very large number probably is more demanding and not as instant as 0.

Not that it really matters anyways, as this entire function is basically a slower SetUnitFlyHeight. (I'll graveyard this soon, just waiting for the author to respond)

Originally Posted by PurplePoot

This is useless due to the 'rate' parameter on SetUnitFlyHeight. (Except for the Kill, but that is very easy to do since rate works fine anyways)

Hmm... I guess I never thought about it that way... guess you're right

~Graveyarded, then.