Broken Tutorial? - GameCreators Forum

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mikewhl

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Joined: 19th Jul 2010

Location: Columbus,Ohio

Posted: 14th Aug 2010 19:26

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I just tried the tut, DBP TUT 1

Screen Scrolling Techniques

It will not run as posted. I had to mess around to get it to compile.
Has something changed since then (it is fairly dated)?
This is what I have. Is this as it was intended?

+ Code Snippet

Rem Project: tut scrolling
Rem Created: Saturday, August 14, 2010

Rem ***** Main Source File *****

Sync on 
Sync Rate 60
Backdrop off

Load Image \"Media\\800x600.jpg\",1
Paste image 1,0,0

x1 = 352
y1 = 16
x2 = 784
y2 = 384

get image 2,0,0,800,600,0
get image 3,x1,y1,x2,y2,0
sprite 1,0,0,2
sprite 2,x1,y1,3
spr = 2

Repeat
tv# = tv# + 0.01
set sprite texture coord spr, 0, 0.0, 0.0 + tv#
set sprite texture coord spr, 1, 1.0, 0.0 + tv#
set sprite texture coord spr, 2, 0.0, 1.0 + tv#
set sprite texture coord spr, 3, 1.0, 1.0 + tv#

if upkey()=1 then spr=2
if downkey()=1 then spr=1
sync
until spacekey()=1

If so, they really should fix it. Kinda frustrating to do a tut that wont run! A total noob will have fits with that!

Mike

some cool stuff someone else said here

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Grog Grueslayer

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Joined: 30th May 2005

Playing: Green Hell

Posted: 14th Aug 2010 20:13

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Try loading the image this way:

+ Code Snippet

load bitmap "media/800x600.jpg"

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mikewhl

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Location: Columbus,Ohio

Posted: 14th Aug 2010 22:23 Edited at: 14th Aug 2010 22:24

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Hummm...
Grog, I did/do have it that way in my code! I don't know where those extra slashes come from!
I'll post it again, to see if it puts them in there.

+ Code Snippet

Rem Project: tut scrolling
Rem Created: Saturday, August 14, 2010

Rem ***** Main Source File *****

Sync on 
Sync Rate 60
Backdrop off

Load Image "Media\800x600.jpg",1
Paste image 1,0,0

x1 = 352
y1 = 16
x2 = 784
y2 = 384

get image 2,0,0,800,600,0
get image 3,x1,y1,x2,y2,0
sprite 1,0,0,2
sprite 2,x1,y1,3
spr = 2

Repeat
tv# = tv# + 0.01
set sprite texture coord spr, 0, 0.0, 0.0 + tv#
set sprite texture coord spr, 1, 1.0, 0.0 + tv#
set sprite texture coord spr, 2, 0.0, 1.0 + tv#
set sprite texture coord spr, 3, 1.0, 1.0 + tv#

if upkey()=1 then spr=2
if downkey()=1 then spr=1
sync
until spacekey()=1

Posted correctly that time.
Curious....

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Grog Grueslayer

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Playing: Green Hell

Posted: 14th Aug 2010 23:01

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It works for me (see attached image). What is it doing for you or what error is it giving you?

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mikewhl

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Location: Columbus,Ohio

Posted: 14th Aug 2010 23:25

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I think I need to explain a little better.

The code I posted, is not how the code is given in the tut.
I made some changes to get it to work.

When I typed the code just as written in the tut, I got nothing but a blue screen.

I just posted here so someone who actually knows what they are doing could have a look at the tut. I messes up, or the code is to outdated to work with 7.4. If it is the code, then it should be removed or updated.

Mike

some cool stuff someone else said here

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Grog Grueslayer

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Playing: Green Hell

Posted: 15th Aug 2010 04:13 Edited at: 15th Aug 2010 04:20

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Quote: "I just posted here so someone who actually knows what they are doing could have a look at the tut."

I do know what I'm doing... I'm not the the newbie here.

It's not really a good idea to insult somebody who's trying to help you. It's only you that can't seem to get it to work. I tried the tutorial exactly the way it's written also and it works fine (see attached screenshot of tutorial code).

Quote: "I messes up, or the code is to outdated to work with 7.4. If it is the code, then it should be removed or updated."

Perhaps you should update to the latest version of Darkbasic Pro which is 7.5.

http://www.thegamecreators.com/?m=view_product&id=2000&page=upgrade7-5

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mikewhl

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Location: Columbus,Ohio

Posted: 15th Aug 2010 05:11

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@ Grog,
I am sorry you took it that way. I meant no offense. Really!
I checked back here to post that I did do something wrong apparently. I tried again and it ran fine. I think the only difference being that the first time I ran it I had two instances of the IDE open and a compiled exe. Maybe that caused a problem. I checked my code over (many times).
My typing skills are crap at best.

So my bad as they say.
Again Grog, I meant no offense.

Mike

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Grog Grueslayer

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Playing: Green Hell

Posted: 15th Aug 2010 05:42

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Quote: "I am sorry you took it that way. I meant no offense. Really!"

No problem then.

I'm glad it finally worked for you.

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