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Struct
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Revision as of 20:53, 26 November 2008 by 93.125.186.112 (Talk)
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[edit] Definition
STRUCT
Structs are datatypes, able to contain variables of all datatypes.
To address a member of a struct, use the "." operator: <structname>.<membername>. Like all datatypes, one can have a whole range of them, as displayed in the example.
[edit] Example
Structs can be handy for many aspects of programming.
[edit] Multiple identical data groups
Struct Ship[9] int x; int y; int speed; int angle; End
There are 10 'Ship's now. The data can be accessed like:
Ship[0].speed++; Ship[8].angle = 0;
[edit] Grouping of variables
This is for clarity and to avoid colliding variable names.
Struct Fileinfo String name; String path; End
Note that the struct fileinfo is a predefined global variable.
This example can also be done by defining your own type.
[edit] Pre-assigning values to a struct
You can pre-assign values to a single-level struct by putting them after the members, like so:
Struct example Integer X = 100; Integer Y = 50; End;
You can pre-assign values to a struct array by putting them in pairs after the End tag, like so:
Struct Example[3] Integer X; Integer Y; End = 10, 10, 20, 20, 30, 30, 40, 40;