QB64 Phoenix Edition
Liney Christmas Star - Printable Version

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+---- Thread: Liney Christmas Star (/showthread.php?tid=1286)



Liney Christmas Star - James D Jarvis - 12-16-2022

one of my facebook groups has gone insane with christmas stars and somebody posted a much simpler version of this that I just had to dress up and add options to.

press any key for a new Christmas star
press c to copy the values to the clipboard, if you see one you want to try to use elsewhere (for windows users, edit it out if you can't use the clipboard command)
press <ESC> to quit

Code: (Select All)
' xmas star
' modified from
' https://www.youtube.com/watch?v=vw3k3xkGtIY
'
' press any key for a new star
' press c to copy values to clipboard
'press ESC to quit

Screen _NewImage(800, 600, 32)
_Title "X-Mas Star"
Randomize Timer
Do
    Cls
    segments = 8 + 2 * (Int(Rnd * 12))
    lineop = Int(Rnd * 14)
    xorigin = _Width \ 2
    yorigin = _Height \ 2
    Color 0: Rem color black
    r1 = 70 + Int(Rnd * 150)
    r2 = r1 / Int(2 + Rnd * 3)
    For counter = 0 To segments
        If counter Mod 2 = 0 Then
            radius = r1
        Else
            radius = r2
        End If
        angle = 360 / segments * counter
        angle = angle / 360 * 2 * 3.141592654
        x = radius * Sin(angle) + xorigin
        y = radius * -Cos(angle) + yorigin
        Rem PSet (x, y)
        Line (x_hold, y_hold)-(x, y)
        Select Case lineop
            Case 1
                Line (xorigin, yorigin)-(x, y)
            Case 2
                If counter Mod 2 = 0 Then Line (xorigin, yorigin)-(x, y)
            Case 3
                If counter Mod 2 <> 0 Then Line (xorigin, yorigin)-(x, y)
            Case 4
                x2 = 1.2 * radius * Sin(angle) + xorigin
                y2 = 1.2 * radius * -Cos(angle) + yorigin
                Line (xh2, yh2)-(x2, y2)
                xh2 = x2
                yh2 = y2
            Case 5
                x2 = 1.4 * radius * Sin(angle) + xorigin
                y2 = 1.4 * radius * -Cos(angle) + yorigin
                Line (xh2, yh2)-(x2, y2)
                Line (x, y)-(x2, y2)
                xh2 = x2
                yh2 = y2
            Case 6
                x2 = 1.2 * radius * Sin(angle) + xorigin
                y2 = 1.2 * radius * -Cos(angle) + yorigin
                Line (xh2, yh2)-(x2, y2)
                xh2 = x2
                yh2 = y2
                Line (xorigin, yorigin)-(x, y)
            Case 7
                x2 = 1.2 * radius * Sin(angle) + xorigin
                y2 = 1.2 * radius * -Cos(angle) + yorigin
                Line (xh2, yh2)-(x2, y2)
                xh2 = x2
                yh2 = y2
                If counter Mod 2 = 0 Then Line (xorigin, yorigin)-(x, y)
            Case 8
                x2 = 1.2 * radius * Sin(angle) + xorigin
                y2 = 1.2 * radius * -Cos(angle) + yorigin
                Line (xh2, yh2)-(x2, y2)
                xh2 = x2
                yh2 = y2
                If counter Mod 2 <> 0 Then Line (xorigin, yorigin)-(x, y)
            Case 9
                x2 = 1.4 * radius * Sin(angle) + xorigin
                y2 = 1.4 * radius * -Cos(angle) + yorigin
                x3 = 1.2 * radius * Sin(angle) + xorigin
                y3 = 1.2 * radius * -Cos(angle) + yorigin
                Line (xh2, yh2)-(x2, y2)
                Line (xh3, yh3)-(x3, y3)
                Line (x3, y3)-(x2, y2)
                xh2 = x2
                yh2 = y2
                xh3 = x3
                yh3 = y3
            Case 10
                x2 = 1.4 * radius * Sin(angle) + xorigin
                y2 = 1.4 * radius * -Cos(angle) + yorigin
                x3 = 1.2 * radius * Sin(angle) + xorigin
                y3 = 1.2 * radius * -Cos(angle) + yorigin
                Line (xh2, yh2)-(x2, y2)
                Line (xh3, yh3)-(x3, y3)
                Line (x3, y3)-(x2, y2)
                Line (xorigin, yorigin)-(x, y)
                xh2 = x2
                yh2 = y2
                xh3 = x3
                yh3 = y3
            Case 11
                x2 = 1.4 * radius * Sin(angle) + xorigin
                y2 = 1.4 * radius * -Cos(angle) + yorigin
                x3 = 1.2 * radius * Sin(angle) + xorigin
                y3 = 1.2 * radius * -Cos(angle) + yorigin
                Line (xh2, yh2)-(x2, y2)
                Line (xh3, yh3)-(x3, y3)
                Line (x3, y3)-(x2, y2)
                If counter Mod 2 = 0 Then Line (xorigin, yorigin)-(x, y)
                xh2 = x2
                yh2 = y2
                xh3 = x3
                yh3 = y3
            Case 12
                x2 = 1.4 * radius * Sin(angle) + xorigin
                y2 = 1.4 * radius * -Cos(angle) + yorigin
                x3 = 1.2 * radius * Sin(angle) + xorigin
                y3 = 1.2 * radius * -Cos(angle) + yorigin
                Line (xh2, yh2)-(x2, y2)
                Line (xh3, yh3)-(x3, y3)
                Line (x3, y3)-(x2, y2)
                If counter Mod 2 <> 0 Then Line (xorigin, yorigin)-(x, y)
                xh2 = x2
                yh2 = y2
                xh3 = x3
                yh3 = y3

        End Select
        Color _RGB32(100 + Rnd * 155, 100 + Rnd * 155, 100 + Rnd * 155)
        x_hold = x
        y_hold = y
    Next counter
    Do
        _Limit 30
        kk$ = InKey$
    Loop Until kk$ <> ""

    'comment this part out if you aren't running in windows
    '--------------------------------------------
    If kk$ = "c" Then
        cc$ = "lineop " + Str$(lineop) + ", segments " + Str$(segments) + ", radius1 " + Str$(r1) + ", radius2 " + Str$(r2)
        _Clipboard$ = cc$
        Locate 1, 1: Print "Values copied to clipboard"
        Sleep 1
    End If
    '--------------------------

Loop Until kk$ = Chr$(27)