TOUCHES_END event does not recieve any arguments

dddent

Hello,

I have this code:

function button:onTouchesEnd(event) print(type(event)) if button:hitTestPoint(event.touch.x, event.touch.y) then Event:dispatchEvent(Event.new("hello")) print("hello") end end   button:addEventListener(Event.TOUCHES_END, button.onTouchesEnd)

and am getting this error:

main.lua is uploading. Uploading finished. nil main.lua:27: attempt to index local 'event' (a nil value) stack traceback: main.lua:27: in function <main.lua:25>

I compared my code to working code of mine and can't figure out what's wrong with this...

I hope s.o. can tell me what I'm doing wrong.

Thanks
David

keszegh

shouldn't it be
button:addEventListener(Event.TOUCHES_END, button.onTouchesEnd, self)
in the last line?

also
self:hitTestPoint(event.touch.x, event.touch.y)

dddent

shouldn't it be
button:addEventListener(Event.TOUCHES_END, button.onTouchesEnd, self)
in the last line?

also
self:hitTestPoint(event.touch.x, event.touch.y)

Yeah, youre right, thanks, but the error keeps coming up, the problem is, that there is nothing passed to the function, and i dont know why...

keszegh

try
button:addEventListener(Event.TOUCHES_END, button.onTouchesEnd, button)
or
self:addEventListener(Event.TOUCHES_END, button.onTouchesEnd, self)
inside a button:... function

dddent

Ok,

button:addEventListener(Event.TOUCHES_END, button.onTouchesEnd, button)

worked, thanks!

Passing button instead of self makes sense, but shouldn't the event alsways pass the table with the touch coordinates, and the error shoud have been that self had a nil value? I understand why I have to pass button, but I don't understand why that solved the error...

hgvyas123

i think if you do this

button:addEventListener(Event.TOUCHES_END, button.onTouchesEnd)

then in the self it passes the event as

function button:onTouchesEnd(event) print(type(event)) if button:hitTestPoint(event.touch.x, event.touch.y) then Event:dispatchEvent(Event.new("hello")) print("hello") end end

can be also written as

function button.onTouchesEnd(self,event) print(type(event)) if button:hitTestPoint(event.touch.x, event.touch.y) then Event:dispatchEvent(Event.new("hello")) print("hello") end end