Little Help with JASS

[56k Fanatic]

Can someone help me understand JASS? just translate what the words do like "takes nothing returns nothing" etc., Its kinda hard to learn if you don't know what they do.

 

[SFilip]

takes nothing means that the function needs no parameters.
example of a function that takes nothing:

function DoNothing takes nothing returns nothing
endfunction

you will call it

call DoNothing()

notice that there is nothing between ( ).

returns nothing means that the function can't return a value.
example

local integer = DoNothing()

will not work. this only works if the function "returns integer". the "returns nothing" function can only be called using call <func>.

anyway i suggest that you read this:
http://world-editor-tutorials.thehelper.net/jassintro.php

 

[56k Fanatic]

I just can't seem to understand most of it. I read Daelin's tut, it helped me alot. Can't get my spell to work though. Spell goes like this:

I based it from Thunder Clap bec. my hero already has a war stomp based spell.
After I start the effect the trigger creates a dummy unit which casts a shockwave in all directions.Can't get it to cast shockwave in 8 directions at once. What do I do?

1 more thing, how do i create multiple units in a straight line at once? Like fissure, cos it creates the fissure unit dummy.And how do i make shockwaves shoot out from my hero in all directions at THE SAME time like shadow fiend's requiem of souls?

 

[Vexorian]

The line breaks on that version are screwed up. try: http://www.wc3campaigns.net/showthread.php?t=74894 It is the most updated version. I also fixed many typos and grammar errors eventually so it should be much easier to understand

 

[56k Fanatic]

I know integers and string already. What I want to know is how I create units and move them to the direction they're facing and damage units it comes across with. Sorry for being impatient im only 13.

 

[Vexorian]

Re:

You can't learn algebra before learning arithmetic you know, you were having problems with the syntax of function declaration which is explained in my tutorial.

 

[56k Fanatic]

Hmm, I know the syntax of function declaration already. Its function <function name> takes nothing returns nothing. Maybe you could help me figure out how Ravage makes a dummy unit cast impale in all directions? Tell me which line tells the dummy to cast impale on all directions. Here is the code :
// A03Z = Ravage
function Trig_Tidehunter_Spell_Ravage_Conditions takes nothing returns boolean
if(not (GetSpellAbilityId()=='A03Z'))then
return false
endif
return true
endfunction

// e00E = Spellcaster
// A084 = Ravage 1
// A03Z = Ravage
function Trig_Tidehunter_Spell_Ravage_Actions takes nothing returns nothing
local location fww=GetUnitLoc(GetTriggerUnit())
local location fWW
set bj_forLoopAIndex=1
set bj_forLoopAIndexEnd=16
loop
exitwhen bj_forLoopAIndex>bj_forLoopAIndexEnd
call CreateNUnitsAtLoc(1,'e00E',GetOwningPlayer(GetTriggerUnit()),fww,bj_UNIT_FACING)
call UnitAddAbility(bj_lastCreatedUnit,'A084')
call SetUnitAbilityLevelSwapped('A084',bj_lastCreatedUnit,GetUnitAbilityLevelSwapped('A03Z',GetTriggerUnit()))
set fWW=PolarProjectionBJ(fww,100.,(22.5*I2R(bj_forLoopAIndex)))
call IssuePointOrderByIdLoc(bj_lastCreatedUnit,OrderId("impale"),fWW)
call RemoveLocation(fWW)
set bj_forLoopAIndex=bj_forLoopAIndex+1
endloop
call RemoveLocation(fww)
endfunction

function StartTrigger_Tidehunter_Spell_Ravage takes nothing returns nothing
set gg_trg_Tidehunter_Spell_Ravage=CreateTrigger()
call TriggerRegisterAnyUnitEventBJ(gg_trg_Tidehunter_Spell_Ravage,EVENT_PLAYER_UNIT_SPELL_EFFECT)
call TriggerAddCondition(gg_trg_Tidehunter_Spell_Ravage,Condition(function Trig_Tidehunter_Spell_Ravage_Conditions))
call TriggerAddAction(gg_trg_Tidehunter_Spell_Ravage,function Trig_Tidehunter_Spell_Ravage_Actions)
endfunction

function InitTrig_Tidehunter_Spell_Ravage takes nothing returns nothing
endfunction

Got it from OpenDotA 6.32b

 

[AceHart]

> call CreateNUnitsAtLoc(1,'e00E',GetOwningPlayer(GetTriggerUnit()),fww,bj_UN IT_FACING)

Create a dummy.

> call UnitAddAbility(bj_lastCreatedUnit,'A084')

Give it "impale".

> call SetUnitAbilityLevelSwapped('A084',bj_lastCreatedUnit,GetUnitAbilityLev elSwapped('A03Z',GetTriggerUnit()))

At the same level as the Hero's ability.

> set fWW=PolarProjectionBJ(fww,100.,(22.5*I2R(bj_forLoopAIndex)))

This is the direction.

> call IssuePointOrderByIdLoc(bj_lastCreatedUnit,OrderId("impale"),fWW)

And the order.

All looped 16 times.


And there's a lot of improvements possible here...

 

[56k Fanatic]

Thanks!!! really needed to find that out, now i just have to test it . But ummm, how do i change Ravage to other skills? Do i create a new trigger and copy the rawcode of my ability and replace ravage and its rawcode?

 

[AceHart]

Well, the trigger you posted is waiting for the Hero to cast 'A03Z'.
And the dummy is using 'A084'.

I would guess your map doesn't have those anyway... so, put in your own.

Also, the dummies aren't on timed life. So I guess they have a negative health regeneration.

 

[56k Fanatic]

Its not working can you help me again?

 

[AceHart]

"It doesn't work" is not a very good problem description...

 

[corvusHaunt]

Hahaha.

I'll put money on it that he still didn't change the ability Id's.

 

[56k Fanatic]

Whoops sorry, I solved the problem 10 minutes ago. Sorry
The problem was it didnt create the units. Problem Solved! Thanks again for helping!! <3
Now I am actually LEARNING something NEW

 

[56k Fanatic]

Hahaha.

I'll put money on it that he still didn't change the ability Id's.

Lol forgot to change the dummy's rawcode lmao

 

[Battlemapsta]

I seriously have no business in jass yet but don't double post

 

[56k Fanatic]

What double post?

BTW, Ace I need your help AGAIN the dummy should cast the shockwave in all directions but looks like it doesn't shoot shockwaves around 270-315 degrees. is there a way to fix this

 

[AceHart]

You could try to post your trigger.
With any luck, someone will see something there.