another event listener on multiple object problem

jimlev

Sorry if the answer is somewhere on the forum but I haven't found it.

So...
I have a camera class with a touchEvent listener (to manage a drag functionality)
I attach a bunch of sprites to that camera (camera:addchid...). These sprites also have a touchEvent listener.

The result I want :
I can drag my camera to scroll through my sprites and I can click one of the sprites to activate him BUT...

when I click one of the sprites (hitTest verified and with the use of the stopPropagation), the camera Event also occurs.

any idea?

ar2rsawseen

The event is propagated from children to parents
and if you use stopPropagation, then event should not propogate any further

As in:

local parent = Sprite.new() local child1 = Sprite.new() local child2 = Sprite.new()   parent:addChild(child1) parent:addChild(child2)   parent:addEventListener(Event.MOUSE_DOWN, function(self, e) if self:hitTestPoint(e.x, e.y) then e:stopPropagation() print("parent clicked") end end, parent)   child1:addEventListener(Event.MOUSE_DOWN, function(self, e) if self:hitTestPoint(e.x, e.y) then e:stopPropagation() print("child1 clicked") end end, child1)   child2:addEventListener(Event.MOUSE_DOWN, function(self, e) if self:hitTestPoint(e.x, e.y) then e:stopPropagation() print("child2 clicked") end end, child2)

In this scenario, you click on screen, first the event is raised for child1, if child1 was not hit, then child2, if child2 was not hit then parent

If child2 was hit then event stops here and parent does not receive the event.

This is how it should work

What structure do you have?

jimlev

Thanks ar2rsawseen ! Good to see u every time I need, just behind my shoulder

My code's structure looks quite near of your example (as much as I can judge with my pitiful dev skill) :-S

But, I have the answer I want :" It should work". So, I'm gonna try to clean a little bit my code and find, by myself, where is the problem !

I'll be back if I doesn't found it in few hours :O

jimlev

Ok... so... note for later...
stopPropagation in a child's event.mouse_down doesn't stop the event's propagation
to his parent's event.touch_down... ~X(

ar2rsawseen

yep, that sounds like a possible mistake