creating effects in a line

[wraithseeker]

Right now , I had a idea, the caster would cast a spell at the target location which is 900 distance away lets assume that.

Legend
X = Caster
S = Effect
U = Unit
--- = 300 distance

X---S---S---S

This is the visual image which I have created and how do I do that? Units will also be damaged in that 900 distance zone.

 

[Kenny]

Find the distance between the two points.

Then divide the distance by how many times you want the effect to appear, and set that to a variable.

Then make a loop and create the effect at the casters position offset by the above distance multiplied by the loop instance.

local integer i = 1
local integer effect_count = 3
local real dist = <Max Distance>
local real partial_dist = dist / effect_count
local real x = 0.00
local real y = 0.00

loop
    exitwhen i > effect_count + 1
    set x = GetUnitX(caster) + (partial_dist * i) * Cos(angle)
    set y = GetUnitY(caster) + (partial_dist * i) * Sin(angle)
    call DestroyEffect(AddSpecialEffect(Your_effect,x,y))
    call DamageEnemiesInArea(This_is_a_fake_function)
    set i = i + 1
endloop

Something like that i guess

 

[wraithseeker]

Tested , Work? No world editor here.. -.-...

 

[Kenny]

It's not tested, and obviously the above would not work if you copy and pasted it. But that is probably how you should go about doing it. I haven't got an editor on me either.

However, the above will make all the effects appear simultaneously. If you want them to appear at separate times, you will need to use a timer.

I am thinking of making a spell that uses something like this, so I'm pretty sure it should work.

 

[wraithseeker]

I know that It would not work if I copied pastied -.-" as it is just a function which takes variables so copy pasting would do absolutely nothing, I will try it when I get home now.

 

[Tyrande_ma3x]

>

    set x = GetUnitX(caster) + (partial_dist * i) * Cos(angle)
    set y = GetUnitY(caster) + (partial_dist * i) * Sin(angle)

Shouldn't it be:

    set x = GetUnitX(caster) + (partial_dist * i) * Cos(angle * bj_DEGTORAD)
    set y = GetUnitY(caster) + (partial_dist * i) * Sin(angle * bj_DEGTORAD)

 

[Kenny]

Depends if you calculate the angle using RADTODEG in the first place. Im use to calculating the angle with just Atan2((y2 - y1),(x2 - x1)), which returns the value in radians.