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    viewport:hitTestPoint

    perrochonperrochon Member
    in General questions
    I am trying to use hitTestPoint on a ViewPort, but it's not behaving as expected. Viewports don't seem to have width and height. What am I doing wrong? (I could manually add an invisible pixel to use hitTestPoint, but maybe I don't have to?
    print ("Viewport Test")
local pixel = Pixel.new(0,1,105,107)
pixel:setPosition(51,61)
stage:addChild(pixel)
print("Pixel", pixel:getX(), pixel:getY(), "-", pixel:getWidth(), pixel:getHeight(), "-", pixel:getBounds(stage))
print(pixel:hitTestPoint(110, 110))
 
local bg = Pixel.new(0xFFAABB,0.5,200,200)
bg:setPosition(212,211)
stage:addChild(bg)
print(bg:getBounds(bg))
print("Background", bg:getX(), bg:getY(), "-", bg:getWidth(), bg:getHeight(), "-", bg:getBounds(stage))
print(bg:hitTestPoint(220, 222))
 
local vp = Viewport.new()
vp:setClip(0,0,100,100)
vp:setContent(pixel)
vp:setPosition(212, 211)
stage:addChild(vp)
print("Viewport", vp:getX(), vp:getY(), "-", vp:getWidth(), vp:getHeight(), "-", vp:getBounds(stage))
print(vp:hitTestPoint(220, 222))
    Generates
    Viewport Test
Pixel	51	61	-	105	107	-	51	61	105	107
true
0	0	200	200
Background	212	211	-	200	200	-	212	211	200	200
true
Viewport	212	211	-	0	0	-	0	0	0	0
false

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    Comments

    • hgy29hgy29 Maintainer
      No, you are right, viewports don’t have any size, so hitTestPoint won’t work on them, unless you do what you suggested. And hitTestPoint won’t work either on sprites within the content of the viewport.
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