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Hi,
The autorotation question has been asked many times. I've just added some info regarding it on the programming guide:
http://www.cocos2d-iphone.org/wiki/doku.php/prog_guide:autorotation
I hope you find it useful. Feel free to fix any technical / grammar / syntax error. Thanks.
Thank you!
I had a question regarding this. Is it better to add the glView as a subview of the controller's view or set the glView as the controller's view.
I do this:
[director setOpenGLView:glView];
[viewController setView:glView];
[window addSubview: viewController.view];Instead of this:
[director setOpenGLView:glView];
[viewController.view addSubview:glView];
[window addSubview: viewController.view];ah, great to see that :) we've wasted literally hours few days ago while working on iPad port of Blocks Mania, wish we knew all the bits and pieces back then :)
one question - how to handle autorotation for iPad if the desired orientation is Landscape ? IIRC we had to create EAGLView with reversed bounds (height instead of width and vice versa). any simple way ?
@janrad: no idea. I would say it is the same.
Update: Perhaps it is better to use your way... I'll do some tests.
@MikeSz: If you want to handle the autorotation with the UIKit way, then you'll have to resize the EAGLView. You can do it in the UIViewController#willRotateToInterfaceOrientation.
I have not tried rotating the interface by using the Info.plist, but I think it might be possible to do it there too.
sample:
http://www.cocos2d-iphone.org/wiki/doku.php/prog_guide:autorotation#the_uikit_autorotation
ok, I remembered wrong :) in the final version we didn't reverse the dimensions, sorry for wrong info
well, what can I say - just checked how we did it and it's exactly same as what you suggest in the sample :) so I can confirm the sample should work for landscape as well
just wish you posted it a week ago, we spent hours trying to make it work with CCDirector set to Landscape :D which of course couldn't work ;)
Now it's even easier:
Download latest develop branch:
$ git clone git://github.com/cocos2d/cocos2d-iphone.git developChange to the cocos2d directory:
$ cd cocos2d-iphoneInstall the new templates
./install-templates.sh -u -fOpen Xcode, and create a new cocos2d v0.99.5 project. All of the cocos2d templates (cocos2d alone, cocos2d + box2d and cocos2d + chipmunk) includes the autorotation code.
To disabled autorotation, edit GameConfg.h:
#define GAME_AUTOROTATION kGameAutorotationNoneTo enable autorotation using cocos2d, edit GameConfig.h:
#define GAME_AUTOROTATION kGameAutorotationCCDirectorTo enable autorotation using UIViewController, edit GameConfig.h (this is the default value):
#define GAME_AUTOROTATION kGameAutorotationkGameAutorotationUIViewControlleranother job well done riq :)
one suggestion from me - add a notion of where to actually handle various rotations (where to return true for those that should be supported)
I know it's in the RootViewController class, but not everyone knows how it works (hence tons of questions regarding it in the last few days)
@skyhawk: you can create a new template, and then copy all your games files from your old project to the newly created project.
Important Tip:
If your game is using the accelerometer don't forget to update your accelerometer code!
Example:
Game: Billy Frontier
The game originally only supported "landscape left". They added support for "landscape right" in order to be compliant for iPad.
The minigames "Town Stampede" and "Swamp Stampede" work OK with "landscape left". If you rotate the iPad to "landscape right" the hero instead of running forward, it will run backwards!
This bug also happened to me while I was developing Sapus Tongue HD.
Also, the box2d and chipmunk templates don't take into account the new rotations, and they only work OK when the device is on "landscape left".
What is the easiest method to remove an existing template? @Riq, I had previously installed 0.99.5 beta, which gave me the 0.99.5 templates of course, but now when I open a new project using the "new" template, I don't get the above referenced files (GameConfig.h. etc). I am assuming that I am seeing the original 0.99.5 (beta) template.
Thanks!
Harv
@riq - I posted on the blog, sorry should have posted here. I tested the new templates and the autorotation works perfect, however I've lost the content scale. I double-checked using the 0.99.4 plain template and iPhone 4 simulator and its definitely running @ 2x. When I set the content scale to 2.0 with the new rootviewcontroller, it is displaying as twice as big (oversize) on the iPhone 4 simulator.
Is it something I'm doing or have we lost the content scale with the rootviewcontroller?
@riq - yes, I use
[[CCDirector sharedDirector] setContentScaleFactor:2.0f];Ah, got it! I found out what I was doing wrong - I was setting the director content scale after the glView was set. I moved my code back to where you have it in the template and it works fine!
before this line:
// attach the openglView to the director
[director setOpenGLView:glView];Sorry... all is well :-]
skyhawk
Member
Our project is complex, and I was wondering if it was possible to instead of recreating the project with a new template, to instead just copy in a few new files and update such and such. I was just wondering if you had any suggestions on how to do this (beforehand so when I do upgrade to final version of .99.5 it's easier, vs figuring it all out on the day of ^_^)
@skyhawk I've been starting a new clean project every larger release for a while now, and once you've got it down it's really not that complicated, even if your project is a little more complex.
I might even say that it's healthy in some ways, since reimporting certain libraries, resetting certain variables, reimporting/linking resources and so on and so forth forces you to remember that you actually did, and that they are effecting your game in fundamental ways. Personally I think of it as a semi-frequent reminder to clear the deadwood.
Edit: Figuring it out the first time took me maybe half an hour tops, these days it'll take me 10 minutes. Not a huge investment of time and effort.
@christophersisk +1
With the new autorotation I did the same, built a test app, then transplanted the required files into my project.
I use a common folder for my active cocos2d folder so it makes it as easy as dropping in the new (sometimes even developer) version, build and go. If I run into problems I can easily revert back. So far so good, I just switched over to 0.99.5 dev and am rocking with the new RootViewController and liquid smooth rotation. :-]
I think you either have to stay current or stop coming to the forums so you won't realize what you are missing :-D
For some reason using the new template I'm not getting the autorotate related files in my project.. I did a clean install to 99.5 latest developer from GIT, without any previous 99.5 install. The template shows up fine in Xcode, it just doesn't add the files. Tried both with a normal project, and box2d, doesn't show up in either. Checked through all the folders, and did a project wide search, files don't show up anywhere.
Can someone confirm that the current build will install the correct templates?
Edit: So confused. GIT clearly shows that the 'templates' directory exists on GITHUB, but when I download it with 'git clone git://github.com/cocos2d/cocos2d-iphone.git develop' the 'templates' directory does not include the new files. Gonna mess around with it a bit more, but for now I'm clueless
Edit2: Ok, so that was strange. Downloaded the latest develop branch off GITHUB via http, and it worked perfectly. Oh well.
skyhawk
Member
@christophersisk and how do you deal with your source control?
mrTortex
Member
"I think you either have to stay current or stop coming to the forums so you won't realize what you are missing :-D"
So very true. I'm struggling with the decision to upgrade from 99.3 to 99.5. Game is 80% done now, but I think starting a new project and building from new would make me re-learn and clean up, and I get the screen rotate which is one thing I'm looking for. This is my first game (first anything really with Obj-C) so no doubt my code is messy as hell. I think I'll stick to 99.3 until everything works, then rebuild in 99.5 and release on that. :)
I cannot seem to get the templates working either.
It looks like the install as expected, but when I look into the templates folder, I see no "GameConfig.h" file either.
I have downloaded the 99.5 beta version, boh via the cocos2d website and directly from Google code.
Am I missing something ?
Make sure you're checking out the develop branch
git clone http://github.com/cocos2d/cocos2d-iphone.git
git checkout developor if you're not using git, get the archive from
http://github.com/cocos2d/cocos2d-iphone/tree/develop
MaxRC
Member
Great job riq, adding autorotate support in cocos2d.
I'm designing an universal app which is displayed in landscape mode in the iPhone, but portrait in the iPad. Autorotate works great in the iPhone, but not in the iPad. I've removed all the setDeviceOrientation references in my part of the code... but the app launches in landscape mode when I try kGameAutorotationCCDirector o kGameAutorotationUIViewController.
Any idea on how to use it in this case?
Thanks in advance
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