Comments on: iPhone Game Programming – Tutorial 3 – SpriteSheet Class

By: Simon

Simon — Thu, 25 Feb 2010 09:34:22 +0000

Under “Groups & Files” on the left hand side, go down to the “Targets” item in your project (it should look like a round red target) right click and select get info.

Then in the new window opesn, select the “Build” tab and then under “Architecture” go to the item named “Base SDK”. On the right of the “Base SDK” item you should see the base SDK that you’re using. Click on it and you should have the option to set it to SDK 2.2.x.

Mikes project should now run!

By: Simon

Simon — Thu, 25 Feb 2010 09:23:34 +0000

Hi Zathur,

The short answer to this problem is. Open the project in Xcode and you should see a drop down list in the top left corner (assuming you have the default menu layout). Using this select one of the build options there either simulator or device. Keep trying till you get one that works.

The longer answer to this is that Mike’s project is set to build on the base SDK 2.2.x. To set the prject to run on the base SDK you will need to. Open the projet.

By: zahur

zahur — Thu, 25 Feb 2010 05:25:15 +0000

hi, well i tried to run this project but my Xcode fires me an error :
Their is no SDK with name or path iphoneos 2.2.
Please guide me for the same

By: Josh

Josh — Tue, 16 Feb 2010 22:02:19 +0000

Thanks Mike, I will take a look at that tool.

Lol when is the book coming out? :-)

Best,

Josh

By: mike

mike — Tue, 16 Feb 2010 18:39:48 +0000

Hey Josh. Your spot on about needing to be able to mix different sized sprites onto a single sheet. I posted about a tool that I am using for SLQ that creates exactly that type of spritesheet with a plist control file. The blog post can be found at http://www.71squared.com/2009/.....lder-tool/

I am using this in SLQ and have created a new PackedSpriteSheet class that uses the image and control file this tool generates. It’s also included in the book I’m working on.

Thanks for the feedback :o)

Mike

By: Josh

Josh — Tue, 16 Feb 2010 18:30:04 +0000

Hey Mike,

Have you ever thought about extending this to allow for sprite sheets that aren’t uniform?

If you are trying to pack all your sprites for a given level/area into one texture I would think it would be quite rare for *every* one to have the same width and height.

Any thoughts or pointer?

Great job on the tutorials!

Best,

Josh

By: Juli

Juli — Sat, 13 Feb 2010 23:03:39 +0000

Mike, thank you for the great tutorials.

By: Simon

Simon — Tue, 26 Jan 2010 21:15:33 +0000

Hi Mike,

i fixed this problem (not 100% sure how) but i was not getting intialised properly on implementation. Played around with it for hours and it appears to be working.

However I have a different issue now and it’s very much to do with the tileMap so I’ll post it on the section.

Thanks

Simon

By: mike

mike — Mon, 25 Jan 2010 17:28:29 +0000

Hi Simon

I had some problems with the SpriteSheet class myself when I was rewriting it in this area. Can you identify which sprites it cannot find i.e. are they always sprites on the far right or bottom row of sprites in the sprite sheet.

It could be a problem with the calculation that is performed to calculate array index from the x and y position passed in for a sprite.

I was fixed support for spacing and borders within sprite sheets when I had the problem.

If you can’t get to the bottom of it I’m happy to take a look at the code if that would help.

Mike

By: Simon

Simon — Mon, 25 Jan 2010 16:41:22 +0000

Hi Mike,

Not sure if I should post this question hear or on the Tiledmap tutorial. As it the spritesheet that’s throwing an error

ERROR – SpriteSheet: texture location out of range.

But it’s only when I try and use it with the tiledmap class to create the texture for the tiles.

have you any idea what i might be doing wrong here