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I am trying to understand some line of commands

Codes from Nuclear Glory Collision file sphere2sphere

i don't understand. First I tought global was a given name for a variable that will contain the camera value 0.
then global is used again sphere1=100, sphere2=101
Then at color backdrop camera, rgb(0,0,255) he use the (what I think he should use global as a variable) but it use camera. Really need explanation.

No. Making a variable global, relates to it's visibility within the program. It's let DBPRO see variables that might have been defined outside of a function. In programmer jargon this is variable scope. TDK wrote a bunch of tutorials on this stuff. I'd recommend keep brushing over them. Over time the puzzle will become clear.

In the case of this snippet of code, the programmer has decided to define the Camera & Sphere1 variables as globals so they can be accessed from any place within the program. Namely from within functions.


Here's a little (untested) snippet. Try commenting out the "Global Score" line as see how it effects the programs behavior. When the Score is global, DBPRO can see it from inside the DisplayScore(), when it's not global, DBpro thinks score is a completely different variable, which is only visible inside the walls the function.




Good luck..

this is a great tutorial for variables by: xenocythe...this is one of my favorites because it is short and to the point...i made a pdf of the tutorial on my site at jandscreations.com...here is the link to the tutorial...
http://www.jandscreations.com/files/VARIABLES.pdf

hope this helps...

@Random color object,
There's no quick route to understanding this stuff - although I'm sure you're getting sick of hearing this, I suggest you read TDK's tutorials and learn from them. They really do help the beginner to learn this stuff.