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Dark GDK / Scrolling

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sprcoll
7
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Joined: 26th Aug 2012
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Posted: 20th Aug 2013 22:12
Dear ALL,
i have a question about scrolling. I use the following code and i am not sure whether i do it right.

I have the variables screenx and screeny and i draw the sprite with this variables (dbSprite (12,screenx,screeny,1);

i have a phrase like:

screenx=0-scrollx;
screeny=0-scrolly;

And then i change the value of scrollx and scrolly if i press a key.

So this code only move the background-sprites, is it so right/good or is there a method to move the screen without moving the background-sprites? Is this better?

Thank you for your help!
sprcoll
7
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Joined: 26th Aug 2012
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Posted: 26th Aug 2013 23:11
Does nobody want to help? Is this a good way to scroll, or are there better ways?
WickedX
10
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Joined: 8th Feb 2009
Location: A Mile High
Posted: 27th Aug 2013 19:14 Edited at: 27th Aug 2013 19:28
To avoid issues with sprite priorities and having to use the dbDrawSpritesFirst function, so that text and other 2-D elements display over the background, I would use an image for the background. Other than that, you’re gold. This little example only scrolls horizontally.

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sprcoll
7
Years of Service
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Joined: 26th Aug 2012
Location:
Posted: 28th Aug 2013 21:09
Many thanks, so, to move the sprites or images is the normal way, right?
To move the visible screen without to move the background files section is not possible?
WickedX
10
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Joined: 8th Feb 2009
Location: A Mile High
Posted: 29th Aug 2013 00:51
Yes, positioning the sprites or images in a positive or negative; horizontal or vertical direction, is the only way.

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