"Shoot" Spell - How to make it?

[Aesthetics]

Hey,

I would like to know how to make a spell that sends out an arrow (shoot) at a targeted point, and deals damage to the first unit it comes in contact with. GUI, JASS, or vJASS is all fine. If you could post a map, link, or code here, I would really appreciate it.

~Aesthetics~

 

[Silvenon]

Do you know vJass? If yes, you can use Vexorian's xe system. Requires some reading and getting used to, but is a cool system for spellmakers, IMO. The things you'll be interested in are called xecolliders, which allows you to send missiles that can collide with a unit.

 

[Aesthetics]

Do you know vJass?

I'm an idiot who knows how to convert some GUI to vJass using my head, and since I know GUI, I assume I can do vJass. But experience is really limited, and I never made a spell using vJass, or have made anything in vJass before. I'll give it a try.

Anyways, +REP

EDIT: I epic failed after trying to make the spell. Will request spell in request section.

 

[Inachix]

Well simply, all you have to do is create a dummy unit(with arrow model or whatever you want it to be) then instantly move it to a set point infront of it. This does require the triggers to understand so i will post a test map as soon as i can.
EDIT: hopefully this is what you wanted. I havent cleared the leaks added special effects or make it enemies only because it was sort of a rush job :S

 

[Aesthetics]

It works, that's nice, but I see two flaws.

1. That shock wave effect is really a turn-off.

2. An arrow got stuck:

 

[Inachix]

Ah yes, well it was a rush job. Im fixing those issues right now.

 

[Aesthetics]

Ah yes, well it was a rush job. Im fixing those issues right now.

Thanks for your awesomeness. +REP

 

[Inachix]

I felt bad for submitting such a crappy one before so i fixed it up by alot. Arrow no longer gets stuck, no more shockwave effect, added blood effect and no longer hits allies. Hope this helps.

 

[MortAr]

• Set SA_Angle = (Angle from (Position of (Triggering unit)) to (Target point of ability being cast))

Leaks

• Set SA_Angle = (Angle from (Position of (Triggering unit)) to (Target point of ability being cast))

This leaks too

Here

• Set SA_HitUnits = (Random 1 units from (Units within 50.00 of SA_MoveLoc))

I suggest you to increase the AOE of the arrow to 150-175, b/c it may pass thru bigger units without hitting them

 

[dgriff]

Here's how you do it in English.

An archer shoots an arrow at an orc behind a tree.
The arrow flies through the air.
The arrow hits the tree.
Tree takes damage.

Here's what is really happening:

"An archer shoots an arrow at a target behind a tree."
The archer's shot is detected. A unit named "Arrow" is created. Arrow is added to a group called "arrows being shot". Arrow's direction and speed are added to a hashtable under the arrow's handleid. Direction is calculated by atan2(tree's y coordinate - archer's y coordinate, tree's x coordinate - archer's x coordinate). Speed is a constant that you get to make up.

"The arrow flies through the air."
Every .0167 seconds, the group called "arrows being shot" is cycled through. Arrow is in that group. Its direction and speed are retrieved from the hashtable. Arrow's position is changed based on those two numbers. Units around arrow are cycled through. If any of those units are viable, then arrow has hit something. Position is changed by setting arrow's X and Y positions. New X position is speed*cos(direction) + current X position. New Y position is speed*sin(direction) + current x position.

"The arrow hits the tree."
During one of the .0167 second cycles, a tree is detected. Arrow is removed from the group "arrows being shot", arrow is destroyed, its hashtable values are flushed, and the damaging effect is executed.

"Tree takes damage."
A dummy unit is created, it casts a spell of whatever damaging effect the arrow will do on the tree. The dummy unit expires.

 

[Aesthetics]

If speed is a constant, and if I wanted to make a vJass version, this would work?

private constant integer SPEED = 40

 

[Coolty44]

You can't edit speed later on in the script if you use a constant, and it'll need to be in a globals block too

 

[Aesthetics]

You can't edit speed later on in the script if you use a constant, and it'll need to be in a globals block too

It's in a global block, yet I am not planning to edit speed because of my noobishness.