functions are soo cool! :) - GameCreators Forum

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David iz cool

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Joined: 21st Sep 2005

Location: somewhere lol :P

Posted: 23rd Nov 2005 17:37

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u can pretty much make up your own commands if u know how with functions.im having alot of fun with them. lol

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Cash Curtis II

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Joined: 8th Apr 2005

Location: Corpus Christi Texas

Posted: 23rd Nov 2005 17:48 Edited at: 23rd Nov 2005 17:50

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I wouldn't use them for too much. Every variable that they contain are instance variables - they exist only in the function, and go away when the function does. Variables outside the function are not available, either. Only variables declared as constants are, and this creates a mess of variables.

I use functions for math things, like return float = getDistance3D(obj1, obj2). I never use them to change object position, variables, etc.

In my current project, I have the whole thing broken up into four files: RPG.dba, RPGsubs.dba, RPGinit.dba, and RPGfunctions.dba. This is my main loop:

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mainLoop:
do
   gosub subGetInput:
   gosub subGetAI:
   gosub subMoveObjects:
   gosub subMoveCamera:
   gosub subGameStats:

   update terrain
   sync
loop

This uses gosub to go and return to a chunk of code. Chunks of code are easier to identify and modify - a huge main loop can become impossible to navigate. Each sub calls functions if they need to. It lets you organize your code.

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Dodo

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Location: eating lunch

Posted: 23rd Nov 2005 18:01

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actually, if you declare the variables as global, the variables can be accessed anywhere in your code. To do this, put the global keyword before you declare your variables. For Example:

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global Variable as integer = 1

And yes, I agree, functions are very useful, and they make your code a lot tidier.

Part of solving the problem is actually noticing that the problem is there in the first place

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RUCCUS

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Joined: 11th Dec 2004

Location: Canada

Posted: 23rd Nov 2005 18:04

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Also if you don't want the GLOBAL command being outside of the function (since you can't put it inside from my understanding) you can dim the variables into an array and they'll be global by default. Then undimming them will allow you to... un...globalize...them