Learn BLITZMAX with Real Code Examples

Local count:Int = 0
Local isDark:Int = 0

Func updateUI:Int
    Print "Counter: " + count + "\n"
    If isDark Then
        Print "Theme: Dark\n"
    Else
        Print "Theme: Light\n"
    End If
End Func

Func increment:Int
    count :+ 1
    updateUI()
End Func

Func decrement:Int
    count :- 1
    updateUI()
End Func

Func reset:Int
    count = 0
    updateUI()
End Func

Func toggleTheme:Int
    isDark = 1 - isDark
    updateUI()
End Func

' Simulate actions
updateUI()
increment()
increment()
toggleTheme()
decrement
reset()

Demonstrates a simple counter with theme toggling using BlitzMax variables, functions, and console output.

Local a:Int = 0
Local b:Int = 1
Print a
Print b
For Local i:Int = 1 To 8
    Local c:Int = a + b
    Print c
    a = b
    b = c
Next

Generates first 10 Fibonacci numbers.

Function fact(n:Int) As Int
    If n = 0 Then Return 1
    Return n * fact(n-1)
End Function
Print fact(5)

Calculates factorial of a number recursively.

Function isPrime(n:Int) As Int
    If n < 2 Then Return 0
    For Local i:Int = 2 To n-1
        If n Mod i = 0 Then Return 0
    Next
    Return 1
End Function
Print isPrime(13)

Checks if a number is prime.

Local nums:Int[] = [1,2,3,4,5]
Local sum:Int = 0
For Local i:Int = 0 To 4
    sum :+ nums[i]
Next
Print sum

Calculates the sum of an array of numbers.

Local s:String = "HELLO"
Local r:String = ""
For Local i:Int = Len(s)-1 To 0 Step -1
    r +:= Mid(s,i,1)
Next
Print r

Reverses a string.

Local n:Int = 5
For Local i:Int = 1 To 10
    Print n + " x " + i + " = " + n*i
Next

Prints multiplication table of a number.

Local c:Float = 25
Local f:Float = (c*9/5)+32
Print f

Converts Celsius to Fahrenheit.

Local temp:Int = 80
Local thresh:Int = 75
If temp > thresh Then
    Print "Alarm: Temperature Too High!"
Else
    Print "Temperature Normal"
End If

Simulates an alarm if a threshold is exceeded.

Local steps:Int = 10
Local pos:Int = 0
For Local i:Int = 1 To steps
    If Rand(0,1) < 0.5 Then pos :- 1 Else pos :+ 1
    Print pos
Next

Simulates a 1D random walk.