[JASS] methods help.

[13lade619]

code

library APEX

//The Struct.
struct APEX
    private static unit proj     
    private static real x1        
    private static real y1        
    private static real x2        
    private static real y2        
    private static real z1        
    private static real z2        
    private static real arcspeed   
    private static real arc       
    private static real face    
    private static effect fx     
    
    private static real A         // from emjlr's Wild Axes spell
    private static real outx      
    private static real outy
    private static real s2     
    
    private static timer T
    
    static method move takes nothing returns nothing
        local real nx
        local real ny
        //Calculations from Vexorian's Projectile System.
        //     calculates the vertical arc.
        local real d = .arcspeed*0.035
        local real od = SquareRoot(Pow(GetUnitX(.proj)-.x2,2) +  Pow(GetUnitY(.proj)-.y2,2))
        local real time = od / .arcspeed
        local real zspeed = (.z2-GetUnitFlyHeight(.proj)+0.5*.arc*time*time)/time

        //Calculataions from emjlr's Wild Axes spell.
        //     calculates the horizontal arc.
        local real b = 1.-.A
            
        //VERTICAL ARC, from Vexorian 
        call SetUnitFlyHeight(.proj,GetUnitFlyHeight(.proj)+zspeed*.035,0)
        call SetUnitAnimationByIndex(.proj,R2I(Atan2(zspeed,.arcspeed)* bj_RADTODEG)+90) //Thanks infrane!
        
        //Corrective Facing >by me, 13lade619<
        set nx = .x1*.A*.A+.outx*2*.A*b+.x2*b*b
        set ny = .y1*.A*.A+.outy*2*.A*b+.y2*b*b
        call SetUnitFacingTimed(.proj, bj_RADTODEG*Atan2(ny - GetUnitY(.proj), nx - GetUnitX(.proj)), 0)
        
        //HORIZONTAL ARC, from emjlr.
        call SetUnitX(.proj,nx)
        call SetUnitY(.proj,ny)
        set .A = .A-.s2
        
        if (.A <= 0) then
            call DestroyEffect(.fx)
            call SetUnitExploded(.proj, true)
            call KillUnit(.proj)
            set .proj = null
            call PauseTimer(.T)
            call DestroyTimer(.T)
            call .destroy() // <<<<======= undeclared variable 'this' ???
        endif
        
    endmethod
    
    

    //===================================================================================        
    static method create takes unit caster, real x1, real y1, real z1, real x2, real y2, real z2, real varc, real width, real angle, real speed, string model returns thistype
        local thistype this = thistype.allocate()
        local code callback = function thistype.move

        set.T = CreateTimer()
        
        set .x1 = x1
        set .y1 = y1
        set .x2 = x2
        set .y2 = y2
         
        set .z1 = z1
        set .z2 = z2
        
        set .face = Atan2(.y2-.y1,.x2-.x1)*bj_RADTODEG
        
        // VERTICALS / Vex
        set .arcspeed = 1000    // affects the rate where the arc changes, lower generates bigger arc. calc by Vexorian.
        set .arc = (varc) * 8000 // vertical arc. change only within the (). calculation by Vexorian.
        
        set .A = 1 // variable from emjlr.. dont change.
        
        // HORIZONTALS / emjlr3
        set .outx = .x1+ width *Cos(Atan2(.y2-.y1,.x2-.x1)+(angle))
        set .outy = .y1+ width *Sin(Atan2(.y2-.y1,.x2-.x1)+(angle))
        // Affects the REAL SPEED of the projectile, lower is slower. always<1
        set .s2 = speed
            
        //Starting movement, move to the PMove Function.
        set .proj = CreateUnit(GetOwningPlayer(caster),'e001',.x1,.y1,.face)
        set .fx = AddSpecialEffectTarget(model,.proj,"origin")
        call SetUnitFlyHeight(.proj,.z1,0)

        call TimerStart(.T, .03125, true, callback)
        
        return this
    endmethod
    //===================================================================================
endstruct

endlibrary

JassHelper is having "undeclared variable 'this' "
on the .ondestroy line on the move method... i dont know why.

please help. thanks.

 

[xD.Schurke]

you cannot access to non-static variants from a static context :O

 

[Shyhalu]

The struct is not static, so a static method using .destroy would not know which struct to destroy.

I suggest letting the code that creates the struct handle destroying it, or creating a new struct APEX inside of the function and using it as a local variable.

 

[Dr Super Good]

You have to use destroy() on an instance of a struct. So far I do not see any instances of the struct to destroy as everything is static. . .

 

[maskedpoptart]

If you're going to use only static variables, you're better off using a library. However, if you want to be able to make more than one APEX object at any given time, I suggest you learn to use instance variables. I suggest you read this tutorial: http://www.hiveworkshop.com/forums/jass-ai-scripts-tutorials-280/vjass-oop-lesson-128236/

 

[13lade619]

problem solved... sorry for not really checking here.
i posted when i couldnt access thehelper, but i solved it on my own... after eating dinner..

thanks anyway everyone.