Get Handle Type

07-26-2007, 09:21 PM

Is there anyway to get the type of a handle easily?

e.g.

JASS:

function bar takes handle h returns nothing
      local real x
      local real y
      if GetHandleType(h) == "unit" then
            set x = GetUnitX(x)
            set y = GetUnitY(y)
      elseif GetHandleType(h) == "location" then
            set x = GetLocationX(x)
            set y = GetLocationY(y)
      endif
endfunction

Or should I check for a properties that only a handle or each type would have.

07-26-2007, 09:33 PM	#2
TheSecretArts	what does get handle type return?

07-26-2007, 10:34 PM	#3
Jazradel	It doesn't exist. I need a function like GetHandleType() I also appear to hvae double posted. Someone should delete the other thread.

07-26-2007, 11:26 PM	#4
PipeDream	There is, wrap all of the create functions to stash the type in game cache. Then wrap all the destroy functions for a sweet nectar of debug information.

07-27-2007, 04:27 AM	#5
Vexorian	The only practical use for such a function would be a widget dies event. And in those events you can simply check the eventid or whether GetTriggerUnit() is null. Otherwise, whatever you plan to do is wrongly designed, explain it and we'll show you an alternative that doesn't require this function and is probably easier to code as well...

07-27-2007, 07:19 AM

Jazradel

Well, I want to create a coordinate system.

JASS:

function SetCoord takes coord c, handle h return nothing
      if GetHandleType(h) == "location" then
            set c.x = GetLocationX(l)
            set c.y = GetLocationY(l)
            call RemoveLocation(l)
      elseif GetHandleType(h) == "unit" then
            set c.x = GetUnitX(h)
            set c.y = GetUnitY(h)
      elseif //Widgets/lighting/whatever
      endif
endfunction

I know something like this is lazy and probably a bad idea if it gets too complicated, but having to set x/y manually is driving me crazy.

07-27-2007, 07:25 AM	#7
PipeDream	Show us how you want to use the system.

07-27-2007, 07:46 AM

Jazradel

Something like this:

JASS:

struct xy
    real x 
    real y
    static method Create takes handle h returns nothing
         local xy p = xy.allocate()
         // Set it to the appropriate coordinates
    endmethod
    method Distance takes xy p, xy l returns integer
        local real x = l.x - p.x
            local real y = l.y - p.y
            return SquareRoot(x * x + y * y)
    endmethod
endstruct

function Distance takes nothing returns nothing
    local xy p = xy.Create(GetTriggerUnit())
    local xy l = xy.Create(GetSpellTargetLoc())
    call BJDebugMsg(Distance(p. l))
endfunction

07-27-2007, 01:49 PM

Vexorian

haha fun stuff.

JASS:


struct xy
    real x 
    real y
    static method CreateFromUnit takes unit u returns nothing
         local xy p = xy.allocate()
//...
    endmethod

    static method CreateFromLocation takes unit u returns nothing
         local xy p = xy.allocate()
//...
    endmethod

    method Distance takes xy p, xy l returns integer
        local real x = l.x - p.x
            local real y = l.y - p.y
            return SquareRoot(x * x + y * y)
    endmethod
endstruct

Although I think interfaces were meant for this.

JASS:

interface xy
    real x
    real y
    method move takes real px , real py returns nothing
endinterface

function DistanceBetween takes xy a, xy b returns real
     return SquareRoot(  (a.x - b.x )*(a.x - b.x )+(a.y - b.y )*(a.y - b.y )
endfunction

struct xy_unit extends xy
    unit u
    static method create takes unit u returns xyunit
      local xyunit r=xyunit.allocate()
           set r.u=u 
           set r.x=GetUnitX(u)
           set r.y=GetUnitY(u)
       return r
    endmethod

    method move takes real px, real py returns nothing
         call SetUnitX(this.u, px)
         call SetUnitY(this.u, py)
         set this.x=px
         set this.y=py
    endmethod
endstruct