CalculateIntegerExpression
Function CalculateIntegerExpression(expression: String) : Integer
Returns the result of the expression as an Integer.
This function calculates an expression such as "4 + ( apples * 2 )" where apples would be a VirtualVariable, and returns the result.
For more information on expression formatting, see Parser Logic and Maths.
You can also use ParserConstants, ParserMacroExpressions and ParserShortcuts.
Example:
Program
Uses basilisk, pure2d
Begin
InitBasilisk(TRUE)
OpenScreen(640,480,32,FALSE,COB_SHOWCLOSE+COB_SHOWBORDER)
VirtualString("snake1","Cobra")
VirtualString("snake2","Basilisk")
VirtualString("foo",CalculateStringExpression("Turn Your [snake1] Into a [snake2]!"))
VirtualString("macro_expression","( 2.1 + 3.2 )")
VirtualReal("bar1",CalculateRealExpression("3.1 * ( 2.1 + 3.2 )"))
VirtualReal("bar2",CalculateRealExpression("3.1 * $macro_expression"))
VirtualReal("bar3",CalculateRealExpression("bar1 + bar2"))
VirtualInteger("bar4",CalculateIntegerExpression("bar3"))
VirtualBoolean("bar5",CalculateBooleanExpression("TRUE AND ( TRUE XOR FALSE )"))
Text(10,10, "String Expression: "+VirtualString("foo"))
Text(10,30, "Calculation Result 1 (Real): "+VirtualReal("bar1"))
Text(10,50, "Calculation Result 2 (Real): "+VirtualReal("bar2"))
Text(10,70, "Calculation Result 3 (Real): "+VirtualReal("bar3"))
Text(10,90, "Calculation Result 4 (Int): "+VirtualInteger("bar4"))
Text(10,110, "Calculation Result 5 (Boolean): "+VirtualBoolean("bar5"))
While Not ExitRequested
Flip
Pause(2)
Wend
End