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Newcomers AppGameKit Corner / How to stretch picture to keep it as a background

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NewProgramer
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Posted: 10th Jan 2018 19:19
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Hello was wondering how do you stretch a picture and put it as the background also what size pictures should i generally use for all my apps. Thank you
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Phaelax
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Posted: 10th Jan 2018 21:24
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Determine the resolution of the largest device you plan on your app being used by. Make your background at least that size, because it'll look better reduced to fit smaller screens than it will enlarged to fit bigger ones.

And you can use setSpriteSize to match the resolution of the screen. I'm not positive, but I'm willing to bet not all phones have the same aspect ratio. So consider how you want to resize the background. Stretch to fit? Or maintain the aspect ratio and apply black borders.
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Supertino
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Posted: 11th Jan 2018 11:22 Edited at: 11th Jan 2018 11:24
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id say go no smaller than 1080p, most new phones\screens are 1080p or higher today.



The above does not account for aspect ratio but using GetDeviceWidth()\ GetDeviceHeight() and GetImageWidth() \ GetImageHeight() you can resize the sprite and keep aspect by chopping off sides or bottom as needed.
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Phaelax
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Posted: 15th Jan 2018 15:14
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Just to point out, you can use -1 in place of one of the dimensions and it'll be calculated automatically to maintain aspect ratio.
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Supertino
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Posted: 16th Jan 2018 11:23
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@phaelax - nice tip I did not know that.
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baxslash
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Posted: 16th Jan 2018 18:39 Edited at: 16th Jan 2018 18:41
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I would normally make it fit the maximum size it can without creating a squashed image. Something like this:


If you don't mind stretching it do something like this:
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