cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   aogden
   Member

   Hey all,
   I just switched over to a 2d projection to try to get rid of seams in the TileMapAtlas (turning off anti aliasing didn't work) but not my camera movement isn't working.

   
[gameCamera setCenterX:body->p.x centerY:body->p.y centerZ:0];
[gameCamera setEyeX:body->p.x eyeY:body->p.y eyeZ:CAMERA_ZOOM];

   (called in the game layer, where gameCamera is the scene's camera)
   works with 3d projection but breaks down with 2d projection.

   After searching for answers, I tried:
   
[gameCamera setEyeX:body->p.x eyeY:body->p.y eyeZ:eyeZ];
[gameCamera setCenterX:body->p.x centerY:body->p.y centerZ:centerZ];

   where centerZ and eyeZ are the defaults to no avail.

   Any advice?

   Posted 2 years ago #
2. 

   patrickC
   Member

   If I recall correctly, but don't quote me on this, camera doesn't work when 2d projection is enabled.

   You could try fixing the seams with different methods.
   I see you're getting the position of a chipmunk body, you should round that value so that you're moving the camera by whole pixels and not sub-pixels.
   so:
   

   setCenterX:round(body->p.x) ...

   That fixed it for me when nothing else worked.
   Obviously, with aliased tiles too.

   Also, if you're moving the Z value, that will give you seams no matter what.
   If you want to fix seams and be able to zoom in/out, you'll need to upgrade to 0.8.1 and use the new tilemaps with spacing and the 1pixel extra margin tool that comes with cocos2d.

   Hope that helps!

   Posted 2 years ago #
3. 

   aogden
   Member

   Thanks for the reply patrick. Rounding off seemed to help a bit, but didn't get rid of the seams completely. That is too bad that there is no camera control when switching to 2d projection. Can someone else confirm this?
   Also, I am not changing the Z value during the game, but I will look into the spacing tool included in 0.8.1.

   Thanks,
   -Andrew

   Posted 2 years ago #
4. 

   shazbox
   Member

   Sweet, thank you! As soon as I read there was a 2d/3d protection setting I knew what was wrong. :)

   Posted 2 years ago #

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