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Triggers

Snake Curve.w3x
Variables
Initialization
SnakeWaveSingle
DNAWave
Enter map-specific custom script code below. This text will be included in the map script after variables are declared and before any trigger code.
Name Type is_array initial_value
Notes:
Creates a unit a certain point , then creates a unit at polar projection from the prevous unit facing angle r2 = r + 40*Cos(45-12*k) this is the way to make it curve.
Very hard to find and understand actually.
I used TriggerSleepaction to not lose the spells multi-instanceability , but it can be made to work faster with additional trigger.

About the r2 = r + 40*Cos(45-12*k) , changing anything inside the Cos will make the everything TOTTALY different, also and 40 but its not that important
A few good coeficents for "k" are 5 , 7 , 12 , 13 - strange yes ,logical - not at all , but if u replace with 6 it will be VERY different , 7 is alright
Every coeficent makes the curve different , if you experiment a little you will find the best curve that suites you.
//TESH.scrollpos=10
//TESH.alwaysfold=0
function Trig_SnakeWaveSingle_Conditions takes nothing returns boolean
    if ( GetSpellAbilityId() == 'A001' ) then
        return true
    endif
    return false
endfunction

function Trig_SnakeWaveSingle_Actions takes nothing returns nothing
     local unit a = GetSpellAbilityUnit()
     local real r = GetUnitFacing(a) // caster angle facing
     local real x = GetUnitX(a)
     local real y = GetUnitY(a) // caster possition
     local real x1 = 0 
     local real y1 = 0  //the possition of new unit
     local real d = 75  // distance 
     local real r2 = r  // angle for polar projection
     local integer k = 0 // number of times
     local unit L  //the unit that is goint to be created
     loop
          call TriggerSleepAction(0.0001) // the price for MUI... Its not slower than you think!
          set x1 = x + d*Cos(r2 * bj_DEGTORAD) //calculates the possition of new unit(PolarProjection)
          set y1 = y + d*Sin(r2 * bj_DEGTORAD)
          set L = CreateUnit(GetOwningPlayer(a),'e000',x1,y1,bj_UNIT_FACING)//unit creation
          call UnitApplyTimedLife(L,'BTLF',1.15)//duration
          set x = x1
          set y = y1  // saves and stores prevous coordiantes
          set k = k +1 // number of times , also used in the angle calculation
          set r2 = r + 40*Cos(45-12*k) // the key for making it curve , special formula made from scratch
     exitwhen (k==40)
     endloop
endfunction

//===========================================================================
function InitTrig_SnakeWaveSingle takes nothing returns nothing
    set gg_trg_SnakeWaveSingle = CreateTrigger(  )
    call TriggerRegisterAnyUnitEventBJ( gg_trg_SnakeWaveSingle, EVENT_PLAYER_UNIT_SPELL_EFFECT )
    call TriggerAddCondition( gg_trg_SnakeWaveSingle, Condition( function Trig_SnakeWaveSingle_Conditions ) )
    call TriggerAddAction( gg_trg_SnakeWaveSingle, function Trig_SnakeWaveSingle_Actions )
endfunction


//TESH.scrollpos=25
//TESH.alwaysfold=0
function Trig_DNAWave_Conditions takes nothing returns boolean
    if ( GetSpellAbilityId() == 'A002' ) then
        return true
    endif
    return false
endfunction

function Trig_DNAWave_Actions takes nothing returns nothing
     local unit a = GetSpellAbilityUnit()
     local real r = GetUnitFacing(a) //angle that will be used
     local real x = GetUnitX(a)
     local real y = GetUnitY(a)  //caster location
     local real xP = x
     local real yP = y   //storage for prevous unit pos 2nd type
     local real x1 = 0
     local real y1 = 0   //the possition of new unit 1st
     local real x2 = 0  
     local real y2 = 0  // the possition of new unit 2nd
     local real d  = 75 //distance between units , increasing this will make it longer
     local real r2 = r  // angle for polar projection 1st unit
     local real r3 = r  // the constant angle used for r4 ,USELESS.
     local real r4 = r // angle for polar projection for the 2nd unit
     local integer n = 12 //increasing this will change the shape of elipse
     local integer k = 0 // the number of times
     local unit L  // units
     local unit L2 // units at the other side
     loop
        call TriggerSleepAction(0.0001) // the price for MUI ... 
        set x1 = x + d*Cos(r2 * bj_DEGTORAD) //calculates the possition of new unit 1st
        set y1 = y + d*Sin(r2 * bj_DEGTORAD)
        set x2 = xP + d*Cos(r4 * bj_DEGTORAD)//calculates the possition of new unit 2nd
        set y2 = yP + d*Sin(r4 * bj_DEGTORAD)
        set L = CreateUnit(GetOwningPlayer(a),'e000',x1,y1,bj_UNIT_FACING)//unit creation
        call UnitApplyTimedLife(L,'BTLF',1.15) //unit duration
        set L2 = CreateUnit(GetOwningPlayer(a),'e000',x2,y2,bj_UNIT_FACING)//2nd unit creation
        call UnitApplyTimedLife(L2,'BTLF',1.15)
        set x = x1 // saves and stores the prevous possition to be used to calculate new
        set y = y1
        set xP = x2 //saves and stores.... for 2nd unit
        set yP = y2
        set k = k +1 // number of times counter
        set r2 = r + 40*Cos(45+n*k) // the key to making curve,  
        set r4 = r3 +40*Cos(180+n*k) // why 180? yes i want to know that too,but works
     exitwhen (k==40)
     endloop
endfunction

//===========================================================================
function InitTrig_DNAWave takes nothing returns nothing
    set gg_trg_DNAWave = CreateTrigger(  )
    call TriggerRegisterAnyUnitEventBJ( gg_trg_DNAWave, EVENT_PLAYER_UNIT_SPELL_EFFECT )
    call TriggerAddCondition( gg_trg_DNAWave, Condition( function Trig_DNAWave_Conditions ) )
    call TriggerAddAction( gg_trg_DNAWave, function Trig_DNAWave_Actions )
endfunction
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