A fast, easy to use, free, and community supported 2D game engine
davey
Member
Hi,
I have coded most of my stuff using Core Animation, but it became too slow for the animations I was doing. I have some views in an UIScrollView with horizontal paging enabled. I would like to do the same thing in cocos2d.
Previously I have 2 views that I used to switch between them when the user scrolls. What is the best way to do it in cocos2d but still give the same experience as UIScrollView? Possibly with bounce at the edge as well.
It takes some time playing with the code and reading the samples. I'm not trying to be rude, but no one on this forum will take you by the hand and show you how to do everything step-by-step.
Try building small, single-screen apps and work you're way up to more difficult apps. Look at all the test example code to get an idea how to do things. It's a pain to learn at first, but well worth it. Cocos2d is great.
Good luck.
davey
Member
Thanks. I'm not expecting someone coding it for me. I'm simply asking if someone has some good pointers.
I know that I can use 2 layers and switching them like I did with uiviews. I can almost imitate the scrollview.
Also, there's no harm in asking. I simply want to hear if anyone has any good ideas. Oh, and I did go through the samples and read tutorials online before I decided to re-implement it all in cocos2d.
Like I said, "I'm not trying to be rude..."
From your post I was guessing that you weren't familiar at all with Cocos.
I don't know exactly what you're trying to accomplish, but you could add objects (sprites, etc) to a layer, then position them both on and off screen.
For example, a sprite:
[mySprite setPosition:ccp(-100, 210)]; // off screen to the left - won't be shownAs the user moves/scrolls, you can set the position of the objects and have them move/scroll as needed.
[mySprite setPosition:ccp( (mySprite.position.x + 2), 210)];There is also a camera feature of cocos I have yet to play with yet.
Hope this helps.
davey
Member
Thanks. I have different things going on (animations, images, labels) in the layers, I only want to show one to the user at a time. Then the user can scroll to the next by swiping.
My idea is using moving the layer with all it's contents. The moving part is trivial.
I don't know how the decelerating part should be done, which depends on how fast the user scrolls. And the bouncing back from the edge part.
My suggestion would be to use the touches begin/end functions to give you the start/end co-ords of a user swipe. turn it into a vector (depending on horizontal or vertical). Then every draw tick decelerate the vector (unless another touch occurs). That's how I intend to imitate a scrolling swipe, haven't tried it though.
"My suggestion would be to use the touches begin/end functions to give you the start/end co-ords of a user swipe. turn it into a vector (depending on horizontal or vertical). Then every draw tick decelerate the vector (unless another touch occurs). That's how I intend to imitate a scrolling swipe, haven't tried it though."
+1
Didn't realize that's what you were looking for davey!
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