Line damage

[Vunjo]

How to make Spell that deals line damage (Shockwave) deal damage equal to caster's Strength. Like, I know how to make single target damage, and AoE, but I don't know how to make this line damage...

PLZ Help
+REP

 

[ap0calypse]

Basically you just need to do the same as AoE damage, but then move the point in which you do AoE damage.
I'll explain this in more detail:

O = AoE damage
C = caster

O
O
O
O
C

A line!
That's all you need to do to go from AoE damage to line damage

(You must be able to create MUI spells though, with JASS, indexing or hashtables).

 

[Raven0]

To make it like shockwave or any other line ability in Warcraft 3 you'll have to do what ap0calypse said but periodically.

So:

O @ .8 seconds
O @ .6 seconds
O @ .4 seconds
O @ .2 seconds
C @ cast

Also remember to make it so they don't overlap, so if you move the AoE point 100 yards each time then pick every unit within 49 yards of that point.

 

[Noobsmoke]

you can use this (paladon's shockwave)

 

[Vunjo]

To make it like shockwave or any other line ability in Warcraft 3 you'll have to do what ap0calypse said but periodically.

So:

O @ .8 seconds
O @ .6 seconds
O @ .4 seconds
O @ .2 seconds
C @ cast

Also remember to make it so they don't overlap, so if you move the AoE point 100 yards each time then pick every unit within 49 yards of that point.

So I will have to make 1 AoE damage in front of the hero, use wait, then 1 AoE a bit farther etc. am I right?

 

[Kricz]

I would use a timer instead of wait.
If you want it MUI, run a periodic timer with an indexing system.
I would have a look at paladon's Advanced Shockwave Spell linked above, there should be enough thing that could help you. There is also some kind of documentation in it, telling you how to create such a spell.

 

[Dr Super Good]

For instantanious line damage, use advanced algabra to come with a forumula to make an algerthim to detect collections and then use 1 large enum covering all units affected by the spell and reduce from there using that algerthim.

For shockwave, you just need to perodicly do small searches in a straight line.
To get a straight line point, you use trigonometry (as I am sure you know) where...
x = magnitude*cos(alpha)+offsetx
y = magnitude*sin(alpha)+offsety
alpha = angle in radians of line from a point (the JASS natives for this are in radians but I think the crap GUI accessors for them run in degrees)
magnitude = the distance of the point from the place of origin of the line
offsetx/y = the place of origin of the line (the point where the unit stood while casting the spell usually for cases like this)

 

[Vunjo]

Ok I think I get it thank you guys!

 

[defskull]

I'd rather use Integer-type variable for the position of the dummy casting the AOE Spell per 0.2 seconds

 

[Dr Super Good]

I'd rather use Integer-type variable for the position of the dummy casting the AOE Spell per 0.2 seconds

Why? Firstly an integer is incapable of representing a position (you need a vector). Secondly the WC3 map uses floating point positions thus you will be inaccurate (largish error) if you use integer rather than a real. Thirdly all the trigonometry mentioned return real values thus integers may need typecasting to floats depending if x86 offers float and integer mixed math instructions.

 

[Vunjo]

Sorry for bothering, but could someone make me a test map please? ^^
I tried, and I had few buggs, including the lagg one, so please, if you have time, make me a test map =P

I will give more reputation xD

 

[Kricz]

I could do it in vJass for you, using comments in the script explaining configuration and so on, if you want to.

But you then have to import vJass systems like TimerUtils.

 

[Vunjo]

Well, I don't know anything about Jass, or importing Jass either xD. If you could make me a test map, and "guide" me how to import it, it would be great ^^.

 

[mckill2009]

try this...first set the shockwave damage to ZERO...

• Damage
  • Events
    • Unit - A unit Starts the effect of an ability
  • Conditions
    • (Ability being cast) Equal to Shockwave
  • Actions
    • Set Caster = triggering unit
    • Set Formula = (Strength of Caster (Exclude bonuses))
    • Unit - create a dummy...

then use loops for this...

• Unit - Cause (Caster) to damage circular area after 0.00 seconds of radius 100.00 at (POSITION OF DUMMY), dealing (Real(Formula)) damage of attack type Spells and damage type Normal

you must use real variable also to move the dummy unit from point1 to point2

btw point1 is the position of the dummy, point2 is the offset from point1...

 

[Dr Super Good]

Too bad that hurts everyone, even the caster of the spell...
Never use damage area natives (or GUI). It puts heavy net traffic load (making lag as in delay and not low frame rate) and also does no validation on what it is actually hurting. Thus it will hurt destructables, allies, self, even untargetable stuff for damage making it a source of bugs (killing stuff not meant to be killable like items lieing on ground after dropping from enemy).

 

[mckill2009]

it wont hurt the Caster if you set the point1 (the dummy point of creation) to...say more than 100, but you're right that it will hurt everyone...but only in the line...

 

[Vunjo]

lol it's easy to make unit not hurt caster....
just to make if the else actions, and condition would be the unit in that region is enemy...