SCI Scripts have four different types
of variables: global, local, temporary and parameter.
Local variables
are defined in the local script block. There can only be one local script
block in each script. These variables can only be accessed from the
script they are defined in, unless the script is script.000. The script.000
local variables are global variables, and can be used in any
other scripts as long as the script's object is used.
An example of declaring and using
local or global variables |
(local
//
no value defined, set to zero
ZeroVariable
// A normal variable
SomeLocal =
30
// 30 word sized variables (60 bytes total), all set
to zero
LocalArray[30]
// The six variables in the array are set, the rest
will be zero
DeclaredArray[10]
= (0 1 2 $ABCD 3 4)
)
(procedure
(VarProc)
// Read a variable normally
(if(==
SomeLocal 20)
// do something
)
// Use a variable
for looping and set
// the first 20 entries in LocalArray to 0-19
(for
(= SomeLocal 0)
(< SomeLocal 20)
(++SomeLocal)
(=
LocalArray[SomeLocal]
SomeLocal)
)
// An example of using
a variable for strings
(=
SomeLocal "Hello")
// gets the address of SomeLocal
Display(@SomeLocal)
)
|
Temporary variables can only be
used in the method or procedure they are defined in. To declare temporary
variables, you must use the var
keyword at the begining of the function.
An example of declaring temporary
variables |
(procedure
(VarProc)
//
Multiple variables can be defined, and they cn have preset values
(var
TempVar1 = 30,
TempVar2, TempVar3, TempVar4 = 99)
)
|
Parameter variables can only be
used in the method or procedure they are defined in. These variables
are defined in the function definition.
An example of declaring pramater
variables |
(procedure
(SomeProc)
PrintingProc("Hello
World" 60 80)
)
// Procedure with three parameter
variables
(procedure (PrintingProc
String X Y)
Display(String
dsCOORD X Y)
)
|
|