SC2Mapster Forums - Resources - Tutorials - [Data] Colliding Projectiles - StarCraft 2 Maps

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Küken

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#1 Jan 12, 2011 at 13:40 UTC - 0 likes

This tutorial teaches you, how to create basic colliding projectiles with the data editor. We will handle the kill credit correctly and use different target options (like explode on contact or pierce through targets).
Doodad/cliff collision will not be part of this tutorial, but maybe added in the future.

For demonstrating colliding projectiles, we will create 3 different abilities.

The first ability will be a recreation of a Diablo 2 - style Fireball.

The second ability will be some kind of piercing projectile, which collides with units, but does not get destroyed in the process and cannot hit units multiple times.

The third ability will be some kind of boomerang ability, which does the same thing, but returns to the caster and can hit targets multiple times.

General things:

I use the english version of the editor, so everything will be described in english
I usually always enable campaign dependencies, even if they are not required, so I will not mention it.
My data view options are all enabled, except View Raw Data. To see all the fields as I describe them, you need to enable following view options:
- Show Table View
- Show Default Options
- Show Advanced Fields
- Show Field Type Names
- Combine Structure Values
Unless explicitly specified, do not change the based on - field when creating new objects and always click Suggest for the ID. Be careful about the based on - field, especially for actors. If you forgot to change it, do not try to change it later, but delete the object and create a new one with the correct base, otherwise it might malfunction.

Fireball

Most of you might already know this ability, however, I want to explain shortly, what it does:

The caster releases a fast-moving projectile, which collides with the first unit in its way. It explodes and deals damage in an area around the impact location.

We will use the firebat as the caster unit for this spell, and since the firebat has 2 arms he raises with his animations and a single fireball is boring anyways, we will make him shoot 2 fireballs.
Also, unlike in Diablo 2, we will implement a maximum range for the fireball, when it reaches this, it will simply explode.

The final result should look something like this:

Plasma Surge

This ability should do the following:

The caster releases a projectile, which collides with any enemy unit in its path, dealing damage to them. It does not get destroyed until reaching its destination.

For the sake of variety, another unit will cast this ability, lets take a Tauren Marine ;)

This ability would look similar to this:

Ion Saw

A boomerang - like ability. The saw curves towards a target point and travels back to the caster.
The saw damages everything in its path and should be able to hit units multiple times.
However, it should not hit units multiple times just when passing through them, only, if it hits the units again.
This will be casted by a Prisoner Zealot.

Like this:

Step by Step Tutorials:

These are detailed instructions for exact recreations of the abilities demonstrated in the video and present in the attached test map.

The first paragraph for all 3 spells contains some basic information, why we are creating the spell the way we do it. It is not needed for the step by step instruction, but might be very helpful, if you do not want to use exact recreations of the spell, but similar ones.
If you are not interested and just want to recreate the spells, you can skip the "Basics" - paragraphs.

Fireball

Basics

We will create a missile, which travels to a point, as usual with a launch missile effect and an impact effect. 
For the collision functionality, we will use a persistent effect, which periodically runs a search area at the missile's location. 
We will use the missile's Launch Effect - field for this, which starts an effect, when the missile is launched. 
For this effect, the caster will be the unit casting the ability and the source will be the missile. This is very useful,this way we have direct access to the missile without having to use a behavior. 
There are 2 possibilities to remove the persistent: Either the persistent runs indefinitely, and we use an explicit Destroy Persistent effect to get rid of it, or we simply use a periodic count for the persistent, so the persistent will be finished, after the missile reached the maximum travel distance. 
The 2nd possibility works, but since the missile can be destroyed prematurely, the persistent would still try to check for collision for a while, so I prefer an explicit destruction, it "feels" more correct.

Because of this, we can deal the damage directly with the persistant effect, the caster will still be the original unit and never the missile, so kill credit will be automatically correct.

Units

Create a new unit called Fireball Missile, based on Default Settings (Projectile); click suggest for the id and then ok.

Buttons

Create a new button called Fireball.

Change the Icon-field to Assets\Textures\btn-ability-terran-bombardmendstrike-color.dds.
Change Hotkey and Tooltip as you like.

Effects

Create a new Effect, called Fireball Damage, type Damage.

Set the Combat - Amount field to 45.
Set Effect - Death to Blast.
Click the Search - Area + - field and add 3 regions:
- Radius : 0.5 , Fraction: 1
- Radius : 1.5 , Fraction: 0.5
- Radius : 2.5 , Fraction: 0.25
Click the Search - Search Filters - field and uncheck Ally and Player. Also set following fields to excluded:
- Dead
- Hidden
- Invulnerable
- Item
- Missile
- Stasis
Set Target - Impact Location to Target Point

New effect, name Fireball Impact, type Set.

Open Effect - Effects and add following effects:
- Fireball Damage
- Suicide

New effect, name Fireball Target Check, type Search Area

Open Search - Areas +, add a new entry using Radius: 0.3 and Effect: Fireball Impact
Click the Search - Search Filters - field and uncheck Ally and Player. Also set following fields to excluded:
- Dead
- Hidden
- Invulnerable
- Item
- Missile
- Stasis

New effect, name Fireball Persistent, type Create Persistent

Open Effect - Flags, check Persist until destroyed
Open Effect - Period Durations, add a new entry 0.0625
Open Effect - Periodic Effects, add a new entry Fireball Target Check
Change Target - Location + to Source Unit

New effect, name Fireball Destroy Persistent, type Destroy Persistent

Set Effect - Effect to Fireball Persistent
Set Target - Location + to Source Unit

Go to your Fireball Impact - effect and add Fireball Destroy Persistent to the list of effects.

New effect, name Fireball Launch R, type Launch Missile

Set Effect - Impact Effect to Fireball Impact.
Set Effect - Launch Effect to Fireball Persistent.
Open Movement - Movers, add a new entry: PunisherGrenadesWeapon (unnamed)
Set Target - Impact Location to Target Point
Set Unit - Ammo Unit to Fireball Missile

Copy the last created effect, rename it to Fireball Launch L, click suggest.

New effect, name Fireball Initial, type Create Persistent

Set Effect - Period Count to 2
Open Effect - Period Effects and add Fireball Launch R and Fireball Launch L
Open Effect - Periodic Offsets and add following entries:
- x = 0.4 , y =-10, z = 0.5
- x =-0.4 , y =-10, z = 0.5
Set Target - Location + to Source Point

Abilities

New ability, name Fireball, type Effect - Target

Open Ability - Commands +, select Execute, set the Default Button to Fireball
Set Effect - Effect to Fireball Initial
Set Stats - Range to 9

Actors

New actor, name Fireball Missile, type Missile, based on GenericAttackMissile

Set Unit Name to Fireball Missile
Set Art - Model to Yamato Weapon
Open Event - Events + and add this event:
- Actor creation
  - Set Tint Color
- Set the tint color to the RGB values 255,255,100 and the HDR multiplier to 4.0

New actor, name Fireball Impact, type Model, based on ModelAnimationStyleOneShot

Set Art - Model to 330mmBarrageCannonsImpact (unnamed)
Set Art - Scale to (1.5,1.5,1.5)
Open Event - Events, and create this event:
- Effect.FireballImpact.Start
  - create
Make sure the field Host + only contains something like (implicit, implicit, disabled). If there is a _selectable or something, remove it.

New actor, name Fireball Impact Sound, type Sound, based on SoundOneShot

Open Event - Events, and create this event:
- Effect.FireballImpact.Start
  - create
Set Sound - Sound to Raven_HunterSeekerAttackImpact

New actor, name Fireball R, type Action, based on GenericAttack

Set Impact Effect to Fireball Impact and Launch Effect to Fireball Launch R
Open Attachment - Launch Attachment Query +, change the AMFilterWeapon00 - method to Filter WeaponRight
Open Combat - Launch Assets, set the Sound to Firebat_AttackLaunch

Copy the last created actor, rename it to Fireball L, click suggest

Change the Launch Effect to Fireball Launch L and the attachment method to Filter WeaponLeft.

Select the Firebat - Actor

Open Event - Events + and add the following Event:
- Abil.Fireball.SourcePrepStart
  - AnimPlay Spell Attack

Units

Select the Firebat

Open Ability - Abilities +, add Fireball
Open Ability - Command Card +
- Add the Fireball - Button to any free spot
- Change the Command Type to Ability Command
- Set the Ability to Fireball

For some visual enhancements, you can play around a little, for example add a prepare and finish time to the spell.

The Test Map

Everything related to the Fireball is prefixed with "Fireball -", so if you enter this in the search line, you will get only objects related to the fireball.

Plasma Surge

Basics

Most of the stuff is very similar to the Fireball, except we will not destroy the missile on the first impact.
This means, of course, we will need a way to not affect units multiple times, otherwise units, especially huge ones, might take massive amounts of damage, as the surge travels through them.
Fortunately we are using a persistent effect, so we can easily incorporate markers for this task.
Also, I will not use a Destroy Persistent here, since the missile always travels the full duration. Still, its not that exact, but fine, I guess.

Units

Create a new unit called Plasma Surge Missile, based on Default Settings (Projectile); click suggest for the id and then ok.

Buttons

Create a new button called Plasma Surge.

Change the Icon-field to Assets\Textures\btn-research-terran-ultracapacitors.dds.
Change Hotkey and Tooltip as you like.

Effects

Create a new Effect, called Plasma Surge Damage, type Damage.

Set the Combat - Amount field to 45.
Set Effect - Death to Blast.
Open Effect - Validators and add No Markers

New effect, name Plasma Surge Impact, type Set.

leave it blank (this will be our impact effect for the launch missile effect and an indicator for some actors)

New effect, name Plasma Surge Target Check, type Search Area

Open Search - Areas +, add a new entry using Radius: 0.5 and Effect: Plasma Surge Damage
Click the Search - Search Filters - field and uncheck Ally and Player. Also set following fields to excluded:
- Dead
- Hidden
- Invulnerable
- Item
- Missile
- Stasis

New effect, name Plasma Surge Persistent, type Create Persistent

Set Effect - Period count to 16
Open Effect - Period Durations, add a new entry 0.0625
Open Effect - Periodic Effects, add a new entry Plasma Surge Target Check
Change Target - Location + to Source Unit
Open Target - Marker + and enable Match Flags -> Id

New effect, name Plasma Surge Launch , type Launch Missile

Set Effect - Impact Effect to Plasma Surge Impact.
Set Effect - Launch Effect to Plasma Surge Persistent.
Open Movement - Movers, add a new entry: PunisherGrenadesWeapon (unnamed)
Set Target - Impact Location to Target Point
Set Unit - Ammo Unit to Plasma Surge Missile

New effect, name Plasma Surge Initial, type Create Persistent

Set Effect - Period Count to 1
Open Effect - Period Effects and add Plasma Surge Launch
Open Effect - Periodic Offsets and add the following entry:
- x = 0 , y =-10, z = 0.5
Set Target - Location + to Source Point

Abilities

New ability, name Plasma Surge, type Effect - Target

Open Ability - Commands +, select Execute, set the Default Button to Plasma Surge
Set Effect - Effect to Plasma Surge Initial
Set Stats - Range to 9

Actors

New actor, name Plasma Surge Missile, type Missile, based on GenericAttackMissile

Set Unit Name to Plasma Surge Missile
Set Art - Model to Yamato Weapon

New actor, name Plasma Surge Impact, type Model, based on ModelAnimationStyleOneShot

Set Art - Model to Experimental Plasma Gun Impact
Open Event - Events, and create this event:
- Effect.PlasmaSurgeImpact.Start
  - create
Make sure the field Host + only contains something like (implicit, implicit, disabled). If there is a _selectable or something, remove it.

New actor, name Plasma Surge Impact Sound, type Sound, based on SoundOneShot

Open Event - Events, and create this event:
- Effect.PlasmaSurgeImpact.Start
  - create
Set Sound - Sound to Battlecruiser_YamatoAttackImpact

New actor, name Plasma Surge, type Action, based on GenericAttack

Set Impact Effect to Plasma Surge Impact and Launch Effect to Plasma Surge Launch
Open Combat - Launch Assets, set the Sound to Firebat_AttackLaunch

New actor, name Plasma Surge Damage, type Action, based on GenericAttack

Set Attack Effect to Plasma Surge Damage
Open Combat - Impact Map,
- Set the Model to Experimental Plasma Gun Impact
- set the Sound to Raynor_ExperimentalPlasmaGunImpact

Select the TaurenSpaceMarine (unnamed) - Actor

Open Event - Events + and add the following Event:
- Abil.PlasmaSurge.SourcePrepStart
  - AnimPlay Spell Attack

Units

Select the Tauren Space Marine

Open Ability - Abilities +, add Plasma Surge
Open Ability - Command Card +
- Add the Plasma Surge - Button to any free spot
- Change the Command Type to Ability Command
- Set the Ability to Plasma Surge

The Test Map

Everything related to the Plasma Surge is prefixed with "Plasma Surge -", so if you enter this in the search line, you will get only objects related to the Plasma Surge.

Ion Saw

Basics

Again, a great deal of this will look familiar by now.
However, we will need some additional or a little different objects, because we want the missile to return and a specific movement pattern, so we will use a custom mover this time.
Also the missile should be able to hit units multiple times, but not when its just passing through them. It should only be able to cause damage again, when it moved away and hits the unit on the return again.
The only way I know of to realize this, is by using a buff. Unfortunately, this will make the spell not fully Mui, if 2 saws happen to hit a unit at exactly the same time, one of them might not cause damage properly.

Units

Create a new unit called Ion Saw Missile, based on Default Settings (Projectile); click suggest for the id and then ok.

Buttons

Create a new button called Ion Saw.

Change the Icon-field to Assets\Textures\btn-ability-protoss-blackhole-color.dds.
Change Hotkey and Tooltip as you like.

Models

Create a new model called Ion Saw Missile, type Generic and based on MissileFX

Set Model to Assets\Effects\Terran\ArcadeTerraTronMissileSaw.m3

Behaviors

Create a new behavior called Ion Saw Target, type Buff

Set Stats - Duration to 0.125
Set Stats - Flags to Hidden

Movers

Create a new mover called Ion Saw, type Missile

Open Motion Phases +
- Add a new motion phase with the following settings:
  - Driver = Throw
  - Outro:
    - Blend At = 1
    - Stop At = 11
  - Speed = 15
  - Throw Vector:
    - X = -0.8
    - Y = -1
    - Z = 0
  - Tracking = Actual
- Add another mothion phase with the following settings:
  - Driver = Guidance
  - Orientation:
    - Yaw = 5500
    - Pitch = 5500
    - Roll = 5500
  - Tracking: = Actual

Effects

Create a new Effect, called Ion Saw Damage, type Damage.

Set the Combat - Amount field to 30.
Set Effect - Death to Eviscerate.

New effect, name Ion Saw Apply, type Apply Behavior

Set Behavior - Behavior to Ion Saw Target

New effect, name Ion Saw Target Check, type Search Area

Open Search - Areas +, add a new entry using Radius: 0.8 and Effect: Ion Saw Apply
Click the Search - Search Filters - field and uncheck Ally and Player. Also set following fields to excluded:
- Dead
- Hidden
- Invulnerable
- Item
- Missile
- Stasis

New effect, name Ion Saw Persistent, type Create Persistent

Open Effect - Flags, check Persist until destroyed
Open Effect - Period Durations, add a new entry 0.0625
Open Effect - Periodic Effects, add a new entry Ion Saw Target Check
Change Target - Location + to Source Unit

New effect, name Ion Saw Destroy Persistent, type Destroy Persistent

Set Effect - Effect to Ion Saw Persistent
Set Target - Location + to Source Unit

New effect, name Ion Saw Launch , type Launch Missile

Set Effect - Finish Effect to Ion Saw Destroy Persistent.
Open Effect - Flags, check Return
Set Effect - Launch Effect to Ion Saw Persistent.
Open Movement - Movers +, add a new entry: Ion Saw
Open Movement - Return Movers +, add a new entry: Ion Saw
Set Target - Impact Location to Target Point
Set Unit - Ammo Unit to Ion Saw Missile

New effect, name Ion Saw Initial, type Create Persistent

Set Effect - Period Count to 1
Open Effect - Period Effects and add Ion Saw Launch
Open Effect - Periodic Offsets and add the following entry:
- x = 0 , y =-10, z = 0
Set Target - Location + to Source Point

Behaviors

Select your Ion Saw Target- behavior

Set Effect - Effect - Initial to Ion Saw Damage

Abilities

New ability, name Ion Saw, type Effect - Target

Open Ability - Commands +, select Execute, set the Default Button to Ion Saw
Set Effect - Effect to Ion Saw Initial
Set Stats - Range to 9

Actors

New actor, name Ion Saw Missile, type Missile, based on -> GenericTentacleMissile<-

Set Unit Name to Ion Saw Missile
Set Art - Model to Ion Saw Missile
Set Art - Scale to (0.5,0.5,0.5)
Open Event - Events +
- For the Lifetime animation bracket, change the Content from Stand to Stand (Global Loop)

New actor, name Ion Saw, type Action, based on GenericAttack

Set Launch Effect to Ion Saw Launch
Open Attachment - Launch Attachment Query +
- Set Methods - Filter Type to Direct
- Select Origin from the list
Open Combat - Launch Assets, set the Sound to Obelisk_WarpJumpStart

New actor, name Ion Saw Damage, type Action, based on GenericAttack

Set Attack Effect to Ion Saw Damage
Open Combat - Impact Map,
- Set the Model to Raynor Snipe Big Blood Impact
- set the Sound to Ultralisk_AttackLaunch

Select the Prison Zealot - Actor

Open Event - Events + and add the following Event:
- Abil.IonSaw.SourcePrepStart
  - AnimPlay Spell Attack, Variation 01

Units

Select the Zealot (Prisoner)

Open Ability - Abilities +, add Ion Saw
Open Ability - Command Card +
- Add the Ion Saw - Button to any free spot
- Change the Command Type to Ability Command
- Set the Ability to Ion Saw

The Test Map

Everything related to the Ion Saw is prefixed with "Ion Saw -", so if you enter this in the search line, you will get only objects related to the Ion Saw.

Q&A

I will include questions and their answers here.

Hey Kueken531. I just read and made two of the abilitys from your tutorial, and i was wondering, if I could use them in my map.

By all means yes. Feel free to use them as you want.

In the damage effect, you do modify this - Set Target - Impact Location to Target Point. But shouldn't it be - Set Target - Impact Location to Source Point. ( source point = missile position ) And how is it working when the fireball explode before the target point ? It damage the right points but isn't the target point = clicked position which would make the wrong damage position if fireball explode before the target point?

Indeed, for the persistent effect, the target point is the clicked point and the source unit is the missile.

However, the persistent is "targeted" on the source unit, so for every effect further linked from the persistent, the target unit will be the former source unit, the missile, and so the target point is the location of the missile. However, the source unit should be carried through, so using source here should, in theory, work just as well.

Thanks for reading this tutorial. I hope some people will benefit from it.

Feedback of any kind is appreciated.
Please let me know, if you notice any mistakes in the tutorial.

Last edited May 07, 2012 by TheAlmaity

Name	Size	MD5
Colliding_Projectiles.SC2Map	29.8 KiB	655c2a2f43f1...

ResolveHK Regular Shmoe

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#2 Jan 12, 2011 at 19:09 UTC - 0 likes

@Kueken531: Go

dude thank you so much for doing this. About time someone did this.

Kueken531 Author

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Küken

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#4 Jan 13, 2011 at 13:49 UTC - 0 likes

The tutorial is now finished. Thanks to Abion47 for his help with the hidden text.

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#5 Jan 13, 2011 at 15:34 UTC - 0 likes

@Kueken531: Go

Looks very nice. Much better structure than a lot of tutorials nowadays. Glad to be of service.

Weren't You Just...

How to make spoiler boxes

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#6 Jan 13, 2011 at 15:44 UTC - 0 likes

I think i want somebodies babies..

badly

Edit: If there was someway (i havent read the tutorial as i have to go somewhere) for you to explain or show how you could make the projectile also detonate when they hit walls using validators and the such? i spent practically the whole day trying to get these validator cliff level things working and i couldnt.

Cheers

Last edited Jan 13, 2011 by RageQit

Give me a hey hey if u see me on HoN (cabboose)

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#7 Jan 13, 2011 at 23:25 UTC - 0 likes

@RageQit: Go

when i try to download the map it comes up to this weird ass webpage with crazy characters O_o

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#8 Jan 14, 2011 at 03:37 UTC - 0 likes

@ResolveHK: Go

right click save as

EditL the periodic offsets for the Fireball (initial) are impossible because there is no option to change the z offsets, or is that because i dont have 1.2patch?

Last edited Jan 14, 2011 by RageQit

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#9 Jan 14, 2011 at 04:29 UTC - 0 likes

huh, i finished the fireball tutorial using only one fireball instead of both L and R on a stalker, yet when the fireball hits a unit, the game crashes.

Edit: The same happens when i try your map. I guess i DO have to reinstall the game and update. fml

Last edited Jan 14, 2011 by RageQit

ResolveHK Regular Shmoe

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#10 Jan 14, 2011 at 07:10 UTC - 0 likes

oh ok cool it works. hey, do you think you'd be able to make an ability for the ghost that's an instant straight shot snipe that passes through 1 unit doing full damage and then hits 1 more unit doing 50% damage? And maybe when it hits doodads or walls it kills itself?

or just edit one of your spells to collide with doodads and/or terrain wall layers

Last edited Jan 14, 2011 by ResolveHK

Kueken531 Author

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Küken

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#11 Jan 14, 2011 at 09:28 UTC - 0 likes

@ResolveHK: Go

An instant straight shot would cover another field, since this would not be done using a projectile (similar to Raynor's penetrator round)

I found out, that colliding when hitting a cliff is pretty easy, most likely I will add this for one of the spells in the future. However, I still don't know a way to check for doodad collision. Even if I do, it will be hard to determine, when to collide and when not to.

@RageQit: Go

The Z offset was indeed introduced with 1.2 and I think it looks a little better, if the fireballs don't just hit the ground. Pre- 1.2, you can use actor site operations to raise the impact for the actor visually.

Last edited Jan 14, 2011 by Kueken531

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#12 Jan 14, 2011 at 11:11 UTC - 0 likes

@Kueken531: Go

Well, it could still be a projectile. I could just make the projectile really fast. If you could...i'd like the cliff validator thing :D i need it for my map. :P

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#13 Jan 14, 2011 at 12:09 UTC - 0 likes

@ResolveHK: Go

Really fast projectiles should be avoided, because of the 0.0625 max interval for persistent effects. The faster the projectile, the more likely it will pass through units without actually colliding with them, due to the method of the periodic search effects.

I will add the cliff validator soon, I think.

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#14 Jan 15, 2011 at 01:37 UTC - 0 likes

@Kueken531: Go

Ah, true. Didn't think of that.

Ok, i could use them greatly :D

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#15 Jan 15, 2011 at 22:17 UTC - 0 likes

Hi Kueken531,

thank you very much for that tutorial.

Ive tried it on my own, and think I understood at least a bit of how these actors, abilities, effects and units are tied together.

So I build the fireball stuff, and attach it to a duplicated Thor. I load my map, and when fire my fireball SC2 crashes.

When I try your map it works. So I made screenshots of your data editor fields and compared them to mine, and except for disabled sound and different model it appears to me as it is the same. Oh and I only fire 1 fireball not 2 of em.

When I cast the fireball, my Thor turns around, or moves in position and in the instant the fireball should be appearing it just crashes.

I have no idea why.

Maybe someone has an idea? Ive attached the map for any friendly helpers!

Name	Size	MD5
Fireballtest.SC2Map	216.2 KiB	5a2e4030d89c...

Kueken531 Author

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#16 Jan 16, 2011 at 00:07 UTC - 0 likes

I downloaded your map, and I changed the AnimationPlay from "Attack Spell" to only "Spell" (thanks for this hint btw, I should formulate this part more exactly, I want the animation name to be "Spell" and the used animation to be "Attack", not "Attack Spell"), then started the map. Nothing crashed. Then I changed it back, no crash again. Then I re-downloaded the map, tried it and it crashed :D. Because I only did one change and then re-changed it, nothing was different theoretically, but one time it crashed, the other it didn't.

No idea what blizzard actually messed up with the actors, but just try changing the animation and see, if it works after that.

BTW you forgot the periodic offset for the initial persistant, so the missile does not work.

Last edited Jan 16, 2011 by Kueken531

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#17 Jan 16, 2011 at 09:49 UTC - 0 likes

Thank you so much, both for the great help and the very fast reply.

It really fixed my issue, thanks alot!

If I ever publish my custom map I will put you in the credits for this nice Fireball!

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#18 Jan 16, 2011 at 12:02 UTC - 0 likes

Ok next issue^^

My missile always travels just a few meters and then explodes (if it doesnt hit an enemy on its way).

I changed the Lifetime of the fireball actor to 2.0 but it didnt change.

I changed the ability stats range to maximum (500) now my caster unit doesnt walk towards the target point any more (as desired).

And second issue: I have set a doodad wall, and I would like the projectile to collide with that wall too (without exploding), which it doesnt, it just ignores it and goes through.

Kueken531 Author

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Küken

#456 EU

Join date: Oct 05, 2010

Location: Germany

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#19 Jan 16, 2011 at 12:36 UTC - 0 likes

The missile's target point is the offset point you specified for the initial persistent. If you want to extend the range, choose a bigger offset. If you want it to travel indefinitely, change the used mover's target checking to never.

I have no idea, how to check for doodad collision right now, but I did not really try it. If I find a way to do this, I will probably adapt the tutorial.

Last edited Jan 16, 2011 by Kueken531

WizardofWar83 Author

Join date: Jan 13, 2011

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#20 Jan 16, 2011 at 18:26 UTC - 0 likes

Ahh, thanks. The offset worked.

If doodads are not usable is there any invisible wall, which I can use as collision object?

How do I allow only 1 shot at a time (meaning, as long as there is still a projectile present no other shooting is allowed)? I mean I could probably use a trigger, I would think its possible in the data editor as well.

Last edited Jan 16, 2011 by WizardofWar83

Kueken531 Author

Battle.net

Küken

#456 EU

Join date: Oct 05, 2010

Location: Germany

Reputation: 71

Posts: 3,317
Projects: 2

Last login: May 21, 2012

#21 Jan 16, 2011 at 19:08 UTC - 0 likes

For an invisible unit, just create a new unit and give it the model "Invisible". You can choose a different model - editor for it, so in the editor it is not invisible.

For 1 shot at a time, you could add a requirement to the ability similar to the Train Mothership requirement, which does not allow casting of the ability as long as a fireball missile unit is on the map for the player, or you add a map-wide search effect when you cast the ability, which destroys all fireballs of the player.

Last edited Jan 16, 2011 by Kueken531