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Zoom effect like in Sinister Soccer — Gideros Forum
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    Zoom effect like in Sinister Soccer

    Apollo14Apollo14 Member
    in Code snippets
    Okay Mr Houdini how do you do that zoom effect? B)
    Can you share some code snippets? :)


    @SinisterSoft

    I checked your apk, there are some pictures:
    zoom1.jpg, zoom2.jpg ... zoom15.jpg

    I've tried very basic zoom, just don't know where to go next :)
    How to make it smooth without huge 1MB+ picture? (zoom1.jpg, zoom2.jpg, etc.?)
    How to enter scene smoothly when zoom finished?
    bigMap=Bitmap.new(Texture.new("bigMap.jpg",true))
bigMap:setAnchorPoint(.5,.5)
bigMap:setPosition(centerX,centerY)
bigMap:setScale(.25)
stage:addChild(bigMap)
rotationAllowed=true
 
--zoom:
GTween.new(bigMap, 4, {scaleX = 1, scaleY = 1}, {delay = 0, ease = easing.linear, onComplete = function() print("zoom finished") rotationAllowed=false end})
 
--rotate:
rotationTimer = Timer.new(10,0)
rotationTimer:addEventListener(Event.TIMER, function()
	if rotationAllowed then
	bigMap:setRotation(bigMap:getRotation()+0.2)
	else rotationTimer:stop()
	end
end)
 
rotationTimer:start()
    zip
    zip
    testZoom.zip
    1M

    Likes: SinisterSoft

    > Newcomers roadmap: from where to start learning Gideros
    "What one programmer can do in one month, two programmers can do in two months." - Fred Brooks
    “The more you do coding stuff, the better you get at it.” - Aristotle (322 BC)
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    Comments

    • SinisterSoftSinisterSoft Maintainer
      This one is even better... ;)

      The APK...

      https://play.google.com/store/apps/details?id=com.sinistersoft.retrostar

      Here is a video...



      Basically you get something like Google Earth or similar.

      You start with a point and take a screen grab, then you zoom out 2x, then you take another screen grab ando so on. To get to space should take under 20 images.

      Then get each image cut to 256x256 or 512x512 depending on how accurate you want the image - it doesn't really matter if you use 256x256 if you zoom in quickly.

      Make a sprite called 'world'. Have a variable called scaler, set it to 1. Then add all the images as children of the world sprite starting with the one in space. Set the anchor point to 0.5,0.5 for each of these. On each add just halve scaler and set the next sprite scale to that scale. Now all you need to do is scale 'world' and they will all scale in perfectly.

      You can do other things like turn off/on the sprites as the scale changes for low-end devices.

      Easy. :)

      Likes: antix, Apollo14

      Coder, video game industry veteran (since the '80s, ❤'s assembler), arrested - never convicted hacker (in the '90s), dad of five, he/him (if that even matters!).
      https://deluxepixel.com
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    • Apollo14Apollo14 Member
      Wow! I managed to make it work! :D
      THX @SinisterSoft ! :)
      The effect is cool! :smiley:
      (i've attached project with pics)
      local world=Sprite.new()
world:setPosition(centerX,centerY)
stage:addChild(world)
 
local scaler=1
local zoomArr={}
 
for i=1,10 do
	zoomArr[i]=Bitmap.new(Texture.new("zoom"..i..".jpg",true))
	zoomArr[i]:setAnchorPoint(.5,.5)
	zoomArr[i]:setScale(scaler)
	world:addChild(zoomArr[i])
	scaler/=2
end
 
--zoom world:
GTween.new(world, 6, {scaleX = 1000, scaleY = 1000}, {delay = 0, ease = easing.inCircular, onComplete = function() print("zoom finished") rotationAllowed=false end})
 
--rotate world:
rotationAllowed=true
rotationTimer = Timer.new(10,0)
rotationTimer:addEventListener(Event.TIMER, function()
	if rotationAllowed then
	world:setRotation(world:getRotation()+0.2)
		if world:getRotation()>=70 then rotationAllowed=false end
	else rotationTimer:stop() print(world:getRotation())
	end
end)
 
rotationTimer:start()
      zip
      zip
      testZoom.zip
      1M

      Likes: SinisterSoft, antix, MoKaLux

      > Newcomers roadmap: from where to start learning Gideros
      "What one programmer can do in one month, two programmers can do in two months." - Fred Brooks
      “The more you do coding stuff, the better you get at it.” - Aristotle (322 BC)
      +1 -1 (+3 / -0 )Share on Facebook
    • SinisterSoftSinisterSoft Maintainer
      Very nice. :)

      Likes: Apollo14

      Coder, video game industry veteran (since the '80s, ❤'s assembler), arrested - never convicted hacker (in the '90s), dad of five, he/him (if that even matters!).
      https://deluxepixel.com
      +1 -1 (+1 / -0 )Share on Facebook
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