Constants can be used to store values that don't change during the execution of your program.
Constants must be declared in your program before use with the Const command. Declaring a constant means defining a name, type and initial value for it.
The general syntax for declaring a constant is:
Const Identifier : Type = ConstantExpression
Const STARTUP_SIZE = 1000 Const SCREEN_WIDTH = 640, SCREEN_HEIGHT = 480 Const SCREEN_AREA = SCREEN_WIDTH * SCREEN_HEIGHT Const SCALE_FACTOR:Float = 1.5 Const DEFAULT_TITLE:String = "BlitzMax"
The initial value for a constant may be an expression, but the expression must itself be constant - it may only use other constants or literals and may not use any variables.