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hitTestPoint on invisible sprite? — Gideros Forum
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    hitTestPoint on invisible sprite?

    rrraptorrrraptor Member
    in General questions
    I have a container that have sprites in it, and I need to detect if sprite is clicked, BUT if parent is INVISIBLE then hitTestPoint still triggers.

    Example code:
    --[[
Sprite1 -> parent: stage
 ↳ Sprite2 -> parent: Sprite1
  ↳ Sprite3 -> parent: Sprite2
   ↳ Sprite4 -> parent: Sprite3
    ↳ px -> parent: Sprite4
]]
local t = {}
for i = 1,4 do 
	local cont = Sprite.new() 
	t[i] = cont
	if i > 1 then 
		t[i-1]:addChild(cont)
	else
		stage:addChild(cont)	
	end
end
 
local px = Pixel.new(0,1,32,32)
t[4]:addChild(px)
t[1]:setVisible(false)
 
stage:addEventListener("mouseDown", function(e)
	print(px:hitTestPoint(e.x,e.y,true))
end)
    According to the wiki the third parameter "shapeFlag" supposed to solve the problem but this did not happen.
    shapeFlag: (bool) Take hidden, clipping/masking into consideration when testing hit point optional
    So the questions are: Is it a bug? How to fix it?)
    SuperShape | Nice blured shapes with shadows | Simple button pad | Simple layer class | Simple UI library | 2D camera lib | Color picker | FPS graph | Dear ImGui | cute_c2
    Tagged:
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    Comments

    • hgy29hgy29 Maintainer
      It is a bug, the code seems to check visibility only on the current sprite, not its parents. One more thing to fix :)

      Likes: SinisterSoft, antix

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    • keszeghkeszegh Member
      i thought that's intentional, heh.
      meanwhile:
      function Sprite.isVisibleRecursive( sprite )  
  if not stage:contains(sprite) then return false end
  local visible = false
  repeat
    visible = sprite:isVisible()
    sprite = sprite:getParent()
  until sprite == nil or visible == false
  return visible
end
      Longtitle Productions, creator of
      Fragmenter - animated loop machine and IKONOMIKON - the memory game
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    • rrraptorrrraptor Member
      yeah, I did same thing :)
      function Base:hitTestPoint(x,y,shapeFlag) 
	local parent = self:getParent()
	while parent do 
		if not parent:isVisible() then 
			return false
		end
		parent = parent:getParent()
	end
	return Sprite.hitTestPoint(self,x,y,shapeFlag)
end
      SuperShape | Nice blured shapes with shadows | Simple button pad | Simple layer class | Simple UI library | 2D camera lib | Color picker | FPS graph | Dear ImGui | cute_c2
      +1 -1Share on Facebook
    • MoKaLuxMoKaLux Member
      hgy said:

      It is a bug, the code seems to check visibility only on the current sprite, not its parents. One more thing to fix :)

      Does anybody know if it's been fixed? I have tested but it doesn't seem to work for me.
      my growING GIDEROS github repositories: https://github.com/mokalux?tab=repositories
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    • hgy29hgy29 Maintainer
      Looks like (from the code) it hasn't. Doing it now.

      Likes: MoKaLux

      +1 -1 (+1 / -0 )Share on Facebook
    • MoKaLuxMoKaLux Member
      thank you hgy29 :)

      Likes: PaulH

      my growING GIDEROS github repositories: https://github.com/mokalux?tab=repositories
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