help with TimerStart function

[Metov]

im trying to make a mui spell that uses a timer. i came across this in the jass api:

native TimerStart (timer whichTimer, real timeout, boolean periodic, code handlerFunc) returns nothing

im not too good with jass, and i dont understand the whole thing about handle functions. anyway, if i want to pass this function another function (say i want it to run function d as the code)

what do i need to do to get function d to run whenever the timer expires?

(how do i use this function properly?)

 

[Beardo]

im trying to make a mui spell that uses a timer. i came across this in the jass api:

native TimerStart (timer whichTimer, real timeout, boolean periodic, code handlerFunc) returns nothing

im not too good with jass, and i dont understand the whole thing about handle functions. anyway, if i want to pass this function another function (say i want it to run function d as the code)

what do i need to do to get function d to run whenever the timer expires?

(how do i use this function properly?)

function IRunWhenTheTimerExpires takes nothing returns nothing
debug call BJDebugMsg("Hello world.")
endfunction

function IStartTheTimer takes nothing returns nothing
local timer t = CreateTimer()

call TimerStart(t, 1, true, function IRunWhenTheTimerExpires)

endfunction

 

[Metov]

does the IRunWhenTimerExpires function in the example above have to take and return nothing? or can i pass it a few variables.

also do these variables get reset every time> or do they stay as they are

 

[Beardo]

does the IRunWhenTimerExpires function in the example above have to take and return nothing? or can i pass it a few variables.

also do these variables get reset every time> or do they stay as they are

Timer callback functions can't take or return anything. There are alot of systems available for passing stuff to callbacks


Which variables are you talking about?

 

[Anachron]

does the IRunWhenTimerExpires function in the example above have to take and return nothing? or can i pass it a few variables.

also do these variables get reset every time> or do they stay as they are

Haha, if they would be able to return something we do not have the problems with vJASS and the handle system.

 

[Metov]

Timer callback functions can't take or return anything. There are alot of systems available for passing stuff to callbacks


Which variables are you talking about?

i was talking about the local variables created in the function.

and thanks for your help, i get it now.