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Dark GDK / How to add multiple 2d objects

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Eggie
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Joined: 10th Oct 2010
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Posted: 11th Oct 2010 01:02
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I'm a bit new to Dark Gdk but I have made some simple games. I'm working on a project where 10 enemies of the same image are placed at random locations and angles on the screen but when i run it, only one appears.
The code I used is:

for(i = 10; i < 20; i++)
{
if(dbSpriteExist(i) == 0)
{
dbRandomize(dbTimer());
dbSprite(i,dbRnd(640),dbRnd(480),4);
dbOffsetSprite(i,15.5,15.5);
dbRotateSprite(i,dbRnd(360));
}
}

Any help would be appreciated. Thanks
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IanM
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Joined: 11th Sep 2002
Location: In my moon base
Posted: 11th Oct 2010 15:12
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Move the line 'dbRandomize(dbTimer());' outside of your loop. In fact, do it once only at the top of your program.

What this line is doing is taking the time value (which most likely isn't changing it's value each time you call it because of the fast short loop you are in), and then using this to reset the random number generator back to the same starting point again and again.

Utility plug-ins (26-JUL-2010)
I'm applying terms of use that require you to wear a red nose and honk a horn whenever you use the Internet
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Eggie
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Posted: 12th Oct 2010 06:55
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Thanks. It works great now. The only problem next is when I shoot a bullet and delete the sprite, the function loops again and the sprite reappears but I don't know how to fix it. Would you or anyone happen to know how to stop recreating sprites?

Thanks again for the answer.
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IanM
Retired Moderator
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Posted: 12th Oct 2010 15:27
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Quote: "Would you or anyone happen to know how to stop recreating sprites?"

Apart from simply saying 'don't create them then' I really don't know what to say to that.

How about you post the offending code and we take a look from there.

Utility plug-ins (26-JUL-2010)
I'm applying terms of use that require you to wear a red nose and honk a horn whenever you use the Internet
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Eggie
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Posted: 13th Oct 2010 02:14
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I fixed the problem by putting the code in the beginning of the code. Thanks a lot for your help. I was getting really frustrated with my game
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