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    GTween an sprite using different easings

    FavflyFavfly Member
    edited July 2017 in General questions
    I’ve created a MovieClip sprite that repeats an animation over and over. I want to move that sprite from one place on screen to another. I’ve achieved that with the following gtween.
    GTween.new(animatingMovClip, 2, {x = xPos, y = yPos}, {ease = easing.inQuadratic})
    However, I want to alter the sprite’s alpha over the course of that move, but not using easing.inQuadratic - I’d like it to use a different easing. How do I do that?
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    Comments

    • totebototebo Member
      Accepted Answer
      You have to create a new GTween to do that.

      Likes: Favfly

      My Gideros games: www.totebo.com
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    • FavflyFavfly Member
      Lol! That was easy. :-D

      I'm new to GTween. I've been using MovieClip, which is great... but now seems a lot slower the GTween.

      Thanks.

      Likes: totebo, antix

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    • antixantix Member
      @FavFly just be aware that GTween will really suck CPU resources when you use a lot of them. It really needs a rewrite to not be an EventDispatcher to make it perform better. Use it sparingly and you will be fine :)

      Likes: Favfly, totebo

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    • FavflyFavfly Member
      "...GTween will really suck CPU resources when you use a lot of them."
      Out of interest, how many is too many? ...Or is it just a case of 'you'll know when it's too many'? :-D
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    • totebototebo Member
      Do a test and see what works for you. I find MovieClip to be (much) faster, but it may depend on how you use them. Maybe the creation is the bottleneck and you need to pool GTweens or MovieClips.

      Likes: antix

      My Gideros games: www.totebo.com
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    • antixantix Member
      Yes the bottleneck is usually the creation and yes, a pool of them would be more efficient and then in the worst case scenario create new ones if the pool is depleted.

      It could possibly be rewritten to use a single EnterFrame event to process a table of all currently running tweens too.
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    • rrraptorrrraptor Member
      edited July 2017
      @FavFly just be aware that GTween will really suck CPU resources when you use a lot of them. It really needs a rewrite to not be an EventDispatcher to make it perform better. Use it sparingly and you will be fine :)
      :-?
      Im using this construction:
      function animateSprite(sprite, target, duration, ease)
	if (sprite.gt) then
		sprite.gt:setValues(target)
		sprite.gt:setDuration(duration or 1)
		sprite.gt:setEase(ease or easing.linear)
		sprite.gt:setPaused(false)
	else
		sprite.gt = GTween.new(sprite, duration or 1, target, {ease = ease or easing.linear})
	end
end
      Is it enough to maintain 54 animations at the same time (init animation and level restart animation)?

      I was trying to do same thing with MovieClip, but there is no setters... you can only create new one. And i don't really like frame binding instead of time duration, but if it is more effective, then I will have to use 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
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    • antixantix Member
      @rrraptor it all depends on what it will run on. You should make a worst case scenario (so 54 or more) and see how it runs on your target device.

      I have an old Nexus4 phone as my lowest target device.
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    • rrraptorrrraptor Member
      edited July 2017
      @antix so, i made a quick test on Samsung Galaxy S GT-S7562 (1GHz, 756 mb RAM, snap MSM7227A). Everything works perfect, no lags, all animations is smooth, so i think that GTween is pretty good, at least for my purposes.

      Likes: antix

      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
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