A fast, easy to use, free, and community supported 2D game engine
utku
Member
Hello All,
I've been developing a game using 0.81, as the migration guide suggests I migrated to 0.82 everything was fine until migrating to 0.99.0.
I am using a camera which has eye located at (0, -300, 330) relatively to the camera itself. After migration camera become more away from the sprite.
Do you have any idea which can cause such a different behavior in 0.99.0 ?
bradparks
Member
hey there... it sounds like you were probably zooming in with the camera... which is unsupported by the latest changes to the camera that made the code off way simpler/easier to manage, but removed the ability to zoom in...
you can see release notes on 0.99 here... search for "Camera" and you'll find some notes on the new camera behaviour:
http://www.cocos2d-iphone.org/wiki/doku.php/release_notes:0_99_0
and this discussion talks about the new camera, and how to work around zooming in:
http://www.cocos2d-iphone.org/forum/topic/3959
hope it helps!
utku
Member
hello bradparks,
I need to get the current view matrix of the node to unproject touches, I did not only used zoom but also my camera is looking to the layer from an angle.
I've tried
glMatrixMode(GL_MODELVIEW_MATRIX);
glPushMatrix();
glLoadIdentity();
[self transform];
[self transformAncestors];but no luck so far
Vramin
Member
I had asked about this in another thread, but no one has replied there. It sounds like my issue might be related. Notice in this illustration that the cards are flipping, but the camera seems to be pointed at the center of the display instead of the card that is flipping. I'm running CCOrbitCamera against the individual sprites. From what I've read it seems the camera should be trained on the sprite when it flips.
Some code samples in my thread here: http://www.cocos2d-iphone.org/forum/topic/4739#post-28175
Vramin
Member
I'm using v0.99, and I used ActionsTest.m as my example. Here's what I used:
float d = 5.0f;
[self runAction: [CCSequence actions:
[CCOrbitCamera actionWithDuration:d/2 radius:1 deltaRadius:1 angleZ:0 deltaAngleZ:90 angleX:0 deltaAngleX:0],
[ImageSwapAction actionWithCard: self],
[CCOrbitCamera actionWithDuration:d/2 radius:1 deltaRadius:1 angleZ:270 deltaAngleZ:90 angleX:0 deltaAngleX:0],
nil]];This seems consistent with what is in ActionsTest.m, but I still get the fisheye effect. I noticed I had deltaRadius at 1 (ActionsTest.m was at 0), but making that tweak didn't seem to change it.
This is for an iPad screen running at 1024x768. What do you think I'm missing?
Could you post an screenshot of the fish-eye effect?
Yes, deltaRadius is not used in v0.99.
Ok. I was able to reproduce it. Could you open a bug ? thanks
Today I investigated the issue, and it is working "correctly".
That's how the 3d projection works. A possible solution would be to set a 2d projection:
[[CCDirector sharedDirector] setProjection:CCDirectorProjection2D];But you won't get a "3d' effect.
1 possible solution would be:
// Card is a subclass of Sprite. Don't render it using SpriteSheets
@implementation Card
-(void) draw
{
// pseudo code
// To learn how to set a custom project, see Director#setProjection
// The key is to use a projection where the center of the "screen" is actually the center of the card
set_a_custom_projection( center_is_the_center_of_the_card );
[super draw];
[director set3d projection];
}
@end
Vramin
Member
I just spent a fair amount of time converting my app to use spritesheets instead of regular sprites. I posted about this issue four days before I did the conversion, so I'm getting it with and without spritesheets.
I'm looking at Director#setProjection but I don't get it yet. I played with some of the values in the camera when I was trying to flatten this out, but to no avail. To make it work with a custom projection I'm guessing I need to make one that does this:
gluLookAt( size.width/2, size.height/2, [self getZEye],
size.width/2, size.height/2, 0,
0.0f, 1.0f, 0.0f);Where it centers on my content rectangle?
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