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Newcomers DBPro Corner / User-defines functions that return values

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EvilKnuckles 666
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Posted: 19th Nov 2003 05:08
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ok, i'm stuck, i have a function that needs to return a value as the actual function name. i was wondering if that's even posible. i know it is w/ functions that are pre-defined (timer(), strite x(), etc...) but i need to do that w/ my function.

I need to have a conditional where it figures
CheckCollision(SpriteClass)=1
but it won't asign a value to CheckCollision.
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IanM
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Posted: 20th Nov 2003 19:39
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The first one is easy ... The return type is determined by the type of the parameter after the ENDFUNCTION command



The same goes for your second function ... except that DBPro cannot return a type at the moment.
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Phaelax
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Posted: 21st Nov 2003 10:42
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any idea if patch 6 will allow you to return a TYPE?
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IanM
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Posted: 21st Nov 2003 14:10
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Nope, no idea, but I certainly hope so
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EvilKnuckles 666
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Posted: 24th Nov 2003 22:31
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IanM, i'm talking about returning a value for the actual function name: "CheckCollision"

Such as
Endfunction CheckCollision
^is that possible?
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CattleRustler
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Posted: 24th Nov 2003 23:36
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no. dbp functions are not like c/vb functions where the name is the return. If you want to you can make the variable Global so the function can act on it, and "return" it.

-RUST-
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EvilKnuckles 666
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Posted: 25th Nov 2003 22:09
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how would i make it global?
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CattleRustler
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Posted: 25th Nov 2003 22:35
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Global intMyVar As Integer

-RUST-
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EvilKnuckles 666
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Posted: 29th Nov 2003 07:41
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what does making it global do to it?
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Phaelax
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Posted: 29th Nov 2003 11:42
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Variables used within functions are private or local by default. Meaning that variable only exists within that function. By declaring it global, state that the variable is seen by all functions in the program.
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IanM
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Posted: 29th Nov 2003 14:37
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This snippet shows you local and global variables in use - NOTE, it's not meant to be run



Make sure that you name your variables very carefully. Using the code above, the logig would change drastically if you suddenly made the variable 'a' a global. That's why I get into the habit of doing the extra typing and declaring all my local variables
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