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Dark GDK / Displaying a float value - Noob question

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RancidRat
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Posted: 29th Feb 2008 12:40
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I'm just trying to figure out some C++ stuff. I'm wanting to display the camera's X Y and Z position. I'v seen people do this kinda thing:

char text[256];
wsprintf (text , "XPOS %d" , dbCameraPositionX ( ) );
dbText ( 0 , 0 , text );

In other scripting programs I used before, I would use %f to get the float value but It does not seem to work here. How do I display the float value and is this the best way?
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Rye
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Posted: 29th Feb 2008 14:27
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char text[256];

while ( LoopGDK ( ) )
{
dbText ( 0, 0, text );
sprintf(text, "PosX: %g", dbCameraPositionX());
}

that works. u need the sprintf in the loop remember. And you char array MUST be big enough to store all the text.
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RancidRat
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Posted: 29th Feb 2008 19:12
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Thanks dude, it works perfectly
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AndrewT
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Posted: 1st Mar 2008 02:50 Edited at: 1st Mar 2008 02:50
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You can also use dbStr( ) to retrieve a string of the float value, then use dbText( ) to display it. So:



...should work.
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Rye
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Posted: 1st Mar 2008 05:16
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From a purely performance view...

Chances are, dbstr() is probably a function that has sprintf in it or something. So using it will not be as efficient. Difference will be negligible though.

Its probably better getting used to using C++ things instead of purely relying on DB's commands.
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Niels Henriksen
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Posted: 1st Mar 2008 10:46
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Hmm.... I get an buffer overrun ?

Niels Henriksen
Working on a (MMO)RPG right now in LightEngine (thanks kBessa)
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Benjamin
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Posted: 1st Mar 2008 11:46
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Quote: "Hmm.... I get an buffer overrun ?"

The buffer you are outputting to is probably too small.

Multisync - TCP Server/Client Multiplayer Plugin (DBP/DBCe)
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Rye
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Posted: 1st Mar 2008 14:46
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make sure the array isnt too small. it needs to be able to contain ALL the characters. text[5] will store 5 characters, not 5 lines.
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jason p sage
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Posted: 1st Mar 2008 15:02 Edited at: 1st Mar 2008 15:06
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This is why I set up a Namespace that has ONE Char Buffer of 1024bytes - so I have a nice sized buffer and I can use it everywhere.

jfc_common.h - stripped for thread topic


jfc_common.cpp - also stripped to just pertain to this thread



Then I include jgc_common.h everywhere and I can do:




http://www.jasonpetersage.com/?PAGE=ironinfantry&SECTION=ironinfantry
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Niels Henriksen
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Posted: 1st Mar 2008 16:41
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@jason - thanks for the tip....it worked

Niels Henriksen
Working on a (MMO)RPG right now in LightEngine (thanks kBessa)
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