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Public variable
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| == Definition == | == Definition == | ||
| - | A public variable is a [[variable]] that is specific to a [[process]] or [[function]] in the same way as a [[private variable]]. Unlike a private variable, however, a public variable can be accessed from the rest of the program, by use of the [[ProcessID]] of that process. | + | A public variable is a [[variable]] that is specific to a [[process]] or [[function]] in the same way as a [[private variable]]. Unlike a private variable, however, a public variable can be accessed from the rest of the program, by use of the [[ProcessID]] of that process. It is like a [[local variable]], but just for one [[ProcessType]] instead of for all. |
| Because of the way the compiler works, public variables are only accessible for processes and functions below the declaration (which in fact is pretty normal). To assist in this matter, the statement [[Declare]] was created. | Because of the way the compiler works, public variables are only accessible for processes and functions below the declaration (which in fact is pretty normal). To assist in this matter, the statement [[Declare]] was created. | ||
Revision as of 20:08, 25 June 2007
Definition
A public variable is a variable that is specific to a process or function in the same way as a private variable. Unlike a private variable, however, a public variable can be accessed from the rest of the program, by use of the ProcessID of that process. It is like a local variable, but just for one ProcessType instead of for all.
Because of the way the compiler works, public variables are only accessible for processes and functions below the declaration (which in fact is pretty normal). To assist in this matter, the statement Declare was created.
Example
Process SpaceShip
Public
int speed;
String name;
Begin
Loop
frame;
End
End
This is for example when a ship is needed, of which the speed and name want to be accessible from the rest of the program. This way, one can easily have multiple instances of the same ProcessType, but still have the appropriate variables easily accessible.
