Proggies
#81
check out this b+ mod
Code: (Select All)
_Title " Eye Candy #9B Closer" ' b+ 2022-03-09
DefDbl A-Z
xmax = _DesktopWidth: ymax = _DesktopHeight
Screen _NewImage(xmax, ymax, 32)
_ScreenMove 0, 0
xc = xmax / 2
yc = ymax / 2
diag = Sqr(xc * xc + yc * yc)
p2 = _Pi * 2
Dim colr(-100 To diag + 1000) As _Unsigned Long
Dim Shared cN, pR, pG, pB
While 1
    resetPlasma
    For i = -100 To diag + 1000
        colr(i) = Plasma~&
    Next

    ro = 950: s = 0
    While ro > -50 And _KeyDown(27) = 0
        k$ = InKey$
        If Len(k$) Then Exit While
        Cls
        For a = 0 To p2 / 64 Step p2 / (16 * 360)
            i = 50 * Sin(s) ' 2 * s or just s
            For r = 0 To diag
                PSet (xc + r * Cos(a), yc + r * Sin(a)), colr(r + i + ro)
            Next
            s = s + p2 / 180
        Next
        sx1 = xc: sy1 = yc: sx2 = xc + diag * Cos(0): sy2 = yc + diag * Sin(0): sx3 = xc + diag * Cos(p2 / 64): sy3 = yc + diag * Sin(p2 / 64)
        For a = p2 / 64 To p2 - p2 / 64 Step p2 / 64
            dx1 = xc: dy1 = yc: dx2 = xc + diag * Cos(a): dy2 = yc + diag * Sin(a): dx3 = xc + diag * Cos(a + p2 / 64): dy3 = yc + diag * Sin(a + p2 / 64)
            _MapTriangle (sx1, sy1)-(sx2, sy2)-(sx3, sy3), source& To(dx1, dy1)-(dx2, dy2)-(dx3, dy3), 0
        Next
        Line (0, 0)-(xc - 1.5 * yc, _Height), &HFF000000, BF
        Line (xc + 1.5 * yc, 0)-(_Width, _Height), &HFF000000, BF
        toggle = 1 - toggle
        If toggle Then _Display
        '_Limit 80
        ro = ro - 1
    Wend
    If _KeyDown(27) Then System
Wend

Function Plasma~& ()
    cN = cN + .2
    Plasma~& = _RGB32(127 + 127 * Sin(pR * cN), 127 + 127 * Sin(pG * cN), 127 + 127 * Sin(pB * cN))
End Function

Sub resetPlasma ()
    pR = Rnd ^ 2: pG = Rnd ^ 2: pB = Rnd ^ 2
End Sub
Reply
#82
Wouldn't that look great for an Easter Egg!

Happy Easter!
Code: (Select All)
_Title "Easter Egg Clock" 'B+ 2022-04-01

' to do - draw the whole face and then save to image then just show time with hands!!!
Randomize Timer
Const xmax = 594, ymax = 706
Const sq = 640 '<<<<<<<<<<<<<< everything is scaled to this
Const xy0 = sq / 2, dr = .6 * xy0, br = .1 * xy0, hh = .52 * xy0, mh = .6 * xy0, sh = .6 * xy0, thk = .01 * xy0
Const pi = 3.141592653589793, pm2 = 2 * pi, pd2 = pi / 2, pm2d12 = 2 * pi / 12, pm2d60 = 2 * pi / 60 ' pi stuff
Const xc = xmax / 2, yc = ymax / 2
Screen _NewImage(xmax, ymax, 32)
_ScreenMove (1200 - sq) / 2, 10
be& = _LoadImage("Brown Egg.png")
Dim Shared pr(12), pg(12), pb(12)
For i = 0 To 12
    pr(i) = Rnd: pg(i) = Rnd: pb(i) = Rnd
Next
Do
    _PutImage , be&, 0
    t# = Timer(.001)
    hour% = Int(t# / 3600)
    If hour% > 12 Then showHr# = t# / 3600 - 12 Else showHr# = t# / 3600
    min# = t# / 60 - hour% * 60
    sec# = t# - hour% * 3600 - Int(min#) * 60
    For r = dr - dr / 11 To dr + dr / 11 Step .25 ' main circle
        Circle (xc, yc), r, &HFFFFFFFF
    Next
    lyne xc, yc - dr, 2 * dr, pd2, dr / 5.5, &HFFFFFFFF
    lyne xc, yc, dr, pi * .25, dr / 5.5, &HFFFFFFFF
    lyne xc, yc, dr, pi * .75, dr / 5.5, &HFFFFFFFF
    For i = 0 To 59
        If i Mod 5 = 0 Then
            x = xc + (dr + 30) * Cos(i * pm2d60): y = yc + (dr + 30) * Sin(i * pm2d60)
            drawEasterEgg x, y, 30, _Atan2(yc - y, xc - x)
        Else
            r = 1
            Circle (xc + dr * Cos(i * pm2d60), yc + dr * Sin(i * pm2d60)), r * .5 * thk, &HFFBF0A30
        End If
    Next
    lyne xc, yc, hh, pm2d12 * showHr# - pd2, 8 * thk, &HFF000AFF
    lyne xc, yc, mh, pm2d60 * min# - pd2, 6 * thk, &HFFBF0A30
    lyne xc, yc, sh, pm2d60 * sec# - pd2, 2 * thk, &HFFFFFF00
    Circle (xc, yc), 3, &HFF000000
    '_Limit 120
    _Display
Loop Until _KeyDown(27)

Sub lyne (x0, y0, lngth, ra, thic, c As _Unsigned Long)
    Dim x As Integer, y As Integer, l As Integer
    While l < lngth
        l = l + 1: x = x0 + l * Cos(ra): y = y0 + l * Sin(ra)
        For radius = 0 To thic / 2
            Circle (x, y), radius, c, BF
        Next
    Wend
End Sub

Sub drawEasterEgg (xc, yc, scale, radianAngle)
    Static index
    index = (index + 1) Mod 12
    Dim r, g, b, x, y, c, a, d
    r = pr(index): g = pg(index): b = pb(index)
    For x = -1 To 1 Step .01
        For y = -1 To 1 Step .01
            If x < 0 Then c = c + .0005 Else c = c - .0005
            If (x * x + (1.4 ^ x * 1.6 * y) ^ 2 - 1) <= .01 Then
                If y > 0 Then
                    Color _RGB32(128 * (1 - y) + 128 * (1 - y) * Sin(c * r), 128 * (1 - y) + 128 * (1 - y) * Sin(c * g), 127 * (1 - y) + 127 * (1 - y) * Sin(c * b))
                Else
                    Color _RGB32(128 + 128 * Sin(c * r), 128 + 128 * Sin(c * g), 127 + 127 * Sin(c * b))
                End If
                a = _Atan2(y, x)
                d = scale * Sqr(x * x + y * y)
                Line (xc + d * Cos(a + radianAngle), yc + d * Sin(a + radianAngle))-Step(1, 1)
            End If
        Next
    Next
End Sub

   

Zip has egg image


Attached Files
.zip   EE clock wo exe.zip (Size: 148.33 KB / Downloads: 20)
b = b + ...
Reply
#83
Here are some Crop Circles while we wait for Jarvis version:
Code: (Select All)
_Title "Crop Circles #3 Mod 2 Blender" 'b+ trans and mod to QB64 2021-01-25

Const Xmax = 1024, Ymax = 730, Cx = Xmax / 2, Cy = Ymax / 2, nCrops = 4
ReDim Shared CCircle As Long
Screen _NewImage(Xmax, Ymax, 32)
_Delay .25
_ScreenMove _Middle
ReDim Shared LowColr As _Unsigned Long, HighColr As _Unsigned Long, cNum As Long
HighColr = _RGB32(240, 220, 80): LowColr = _RGB32(100, 50, 10)
crop0
Do
    _PutImage , CCircle, 0
    While _MouseInput: Wend 'aim with mouse
    mx = _MouseX: my = _MouseY: mb = _MouseButton(1)
    drawShip mx, my, LowColr
    If mb Then
        PLC mx, my, Cx, Cy, 360
        _Display
        _Delay .2
        FlagChange = -1
    End If
    If FlagChange Then
        If Rnd < .5 Then
            crop3
        Else
            cNum = (cNum + 1) Mod nCrops
            Select Case cNum
                Case 0: crop0
                Case 1: crop1
                Case 2: crop2
                Case 3: crop3
            End Select
        End If
        FlagChange = 0
    End If
    _Display
Loop Until _KeyDown(27)

'crop0 uses this
Sub drawc (mx, my)
    ReDim cc As _Unsigned Long
    cr = .5 * Sqr((Cx - mx) ^ 2 + (Cy - my) ^ 2): m = .5 * cr
    dx = (mx - Cx) / m: dy = (my - Cy) / m: dr = cr / m
    For i = m To 0 Step -1
        If i Mod 2 = 0 Then cc = HighColr Else cc = LowColr
        x = Cx + dx * (m - i): y = Cy + dy * (m - i): r = dr * i
        fcirc x, y, r, cc
    Next
End Sub

Sub fcirc (CX As Long, CY As Long, R As Long, C As _Unsigned Long)
    Dim Radius As Long, RadiusError As Long
    Dim X As Long, Y As Long
    Radius = Abs(R): RadiusError = -Radius: X = Radius: Y = 0
    If Radius = 0 Then PSet (CX, CY), C: Exit Sub
    Line (CX - X, CY)-(CX + X, CY), C, BF
    While X > Y
        RadiusError = RadiusError + Y * 2 + 1
        If RadiusError >= 0 Then
            If X <> Y + 1 Then
                Line (CX - Y, CY - X)-(CX + Y, CY - X), C, BF
                Line (CX - Y, CY + X)-(CX + Y, CY + X), C, BF
            End If
            X = X - 1
            RadiusError = RadiusError - X * 2
        End If
        Y = Y + 1
        Line (CX - X, CY - Y)-(CX + X, CY - Y), C, BF
        Line (CX - X, CY + Y)-(CX + X, CY + Y), C, BF
    Wend
End Sub

Sub PLC (baseX, baseY, targetX, targetY, targetR) ' PLC for PlasmaLaserCannon
    r = Rnd ^ 2 * Rnd: g = Rnd ^ 2 * Rnd: b = Rnd ^ 2 * Rnd: hp = _Pi(.5) ' red, green, blue, half pi
    ta = _Atan2(targetY - baseY, targetX - baseX) ' angle of target to cannon base
    dist = _Hypot(targetY - baseY, targetX - baseX) ' distance cannon to target
    dr = targetR / dist
    For r = 0 To dist Step .25
        x = baseX + r * Cos(ta)
        y = baseY + r * Sin(ta)
        c = c + .3
        fcirc x, y, dr * r, _RGB32(128 + 127 * Sin(r * c), 128 + 127 * Sin(g * c), 128 + 127 * Sin(b * c))
    Next
    For rr = dr * r To 0 Step -.5
        c = c + 1
        LowColr = _RGB32(128 + 127 * Sin(r * c), 128 + 127 * Sin(g * c), 128 + 127 * Sin(b * c))
        fcirc x, y, rr, LowColr
    Next
    cAnalysis LowColr, rr, gg, bb, aa
    HighColr = _RGB32(255 - rr, 255 - gg, 255 - bb)
End Sub

' PLC uses this
Sub cAnalysis (c As _Unsigned Long, outRed, outGrn, outBlu, outAlp)
    outRed = _Red32(c): outGrn = _Green32(c): outBlu = _Blue32(c): outAlp = _Alpha32(c)
End Sub

Sub drawShip (x, y, colr As _Unsigned Long) 'shipType     collisions same as circle x, y radius = 30
    Static ls
    Dim light As Long, r As Long, g As Long, b As Long
    r = _Red32(colr): g = _Green32(colr): b = _Blue32(colr)
    fellipse x, y, 6, 15, _RGB32(r, g - 120, b - 100)
    fellipse x, y, 18, 11, _RGB32(r, g - 60, b - 50)
    fellipse x, y, 30, 7, _RGB32(r, g, b)
    For light = 0 To 5
        fcirc x - 30 + 11 * light + ls, y, 1, _RGB32(ls * 50, ls * 50, ls * 50)
    Next
    ls = ls + 1
    If ls > 5 Then ls = 0
End Sub

' drawShip needs
Sub fellipse (CX As Long, CY As Long, xr As Long, yr As Long, C As _Unsigned Long)
    If xr = 0 Or yr = 0 Then Exit Sub
    Dim h2 As _Integer64, w2 As _Integer64, h2w2 As _Integer64
    Dim x As Long, y As Long
    w2 = xr * xr: h2 = yr * yr: h2w2 = h2 * w2
    Line (CX - xr, CY)-(CX + xr, CY), C, BF
    Do While y < yr
        y = y + 1
        x = Sqr((h2w2 - y * y * w2) \ h2)
        Line (CX - x, CY + y)-(CX + x, CY + y), C, BF
        Line (CX - x, CY - y)-(CX + x, CY - y), C, BF
    Loop
End Sub

Function rand (low, high)
    rand = Rnd * (high - low) + low
End Function


Sub crop0
    If CCircle Then _FreeImage CCircle
    CCircle = _NewImage(_Width, _Height, 32)
    _Dest CCircle
    Color , HighColr
    Cls
    n = 12: stp = -40
    For br = 360 To 0 Step stp
        shft = shft + 720 / (n * n)
        For i = 1 To n
            x = Cx + br * Cos(_D2R(i * 360 / n + shft))
            y = Cy + br * Sin(_D2R(i * 360 / n + shft))
            drawc x, y
        Next
    Next
    _Dest 0
End Sub

Sub crop1
    If CCircle Then _FreeImage CCircle
    CCircle = _NewImage(_Width, _Height, 32)
    _Dest CCircle
    Color , HighColr
    Cls
    ga = 137.5: bn = 800
    br = 9.5: lr = .5: r = br: dr = (br - lr) / bn
    hc = 180: lc = 120: cr = (hc - lc) / bn
    For n = 1 To bn
        x = Cx + 10 * Sqr(n) * Cos(_D2R(n * ga))
        y = Cy + 10 * Sqr(n) * Sin(_D2R(n * ga))
        r = r - dr
        fcirc x, y, r, LowColr
    Next
    _Dest 0
End Sub

Sub crop2
    If CCircle Then _FreeImage CCircle
    CCircle = _NewImage(_Width, _Height, 32)
    _Dest CCircle
    'this needs big constrast of color
    HighColr = _RGB32(Rnd * 80, Rnd * 80, Rnd * 80) ' field
    LowColr = _RGB32(175 + Rnd * 80, 175 + Rnd * 80, 175 + Rnd * 80)
    Color , HighColr
    Cls
    For i = 45 To Xmax Step 50
        Line (i, 0)-(i + 10, Ymax), LowColr, BF
        Line (0, i)-(Xmax, i + 10), LowColr, BF
    Next
    For y = 50 To 650 Step 50
        For x = 50 To Xmax Step 50
            fcirc x, y, 10, LowColr
        Next
    Next
    _Dest 0
End Sub

Sub crop3
    If CCircle Then _FreeImage CCircle
    CCircle = _NewImage(_Width, _Height, 32)
    _Dest CCircle
    Color , HighColr
    Cls

    r0 = rand(1, 5) / 5: r1 = rand(1, 5) / 10: r2 = rand(1, 5) / 10
    fc = rand(1, 200) / 10: st = rand(10, 500) / 1000
    xol = 0
    yol = 0
    mol = 0
    For i = 0 To 120 Step st
        a0 = (i / r0) * (2 * _Pi)
        a1 = ((i / r1) * (2 * _Pi)) * -1
        x1 = Cx + (Sin(a0) * ((r0 - r1) * fc)) * 30
        y1 = Cy + (Cos(a0) * ((r0 - r1) * fc)) * 30
        x2 = x1 + (Sin(a1) * ((r2) * fc)) * 30
        y2 = y1 + (Cos(a1) * ((r2) * fc)) * 30
        If mol = 0 Then
            mol = 1
            xol = x2
            yol = y2
        Else
            Line (xol, yol)-(x2, y2), LowColr
            xol = x2
            yol = y2
        End If
    Next


    _Dest 0
End Sub

   
   
   
   
b = b + ...
Reply
#84
Your Crop circle and James D Jarvis' Crop circle are valid circles that had been found around. You both did well with your programs. I like them both.
Reply
#85
Thankyou at GareBear I hope you are inspired to try a version of your own. My first ever was the first screen shot a long time ago, I was just fooling around with drawing concentric circles off-setting them consistently and next thing I knew I had those petal like things Smile   Or find an actual crop circle that you find interesting and try and duplicate it. Sometimes you get a happy accident.
b = b + ...
Reply
#86
(07-23-2023, 07:35 PM)bplus Wrote: Thankyou at GareBear I hope you are inspired to try a version of your own. My first ever was the first screen shot a long time ago, I was just fooling around with drawing concentric circles off-setting them consistently and next thing I knew I had those petal like things Smile   Or find an actual crop circle that you find interesting and try and duplicate it. Sometimes you get a happy accident.

   

OK so this:
Code: (Select All)
_Title "SpiderMans Crop Circle" ' b+ 2023-07-24

Screen _NewImage(800, 600, 32)
_ScreenMove 250, 50
grass~& = &HFF008800: light~& = &HFFDDFF00
Color , grass~&: Cls
cx = 300
lx = 150
rx = 550
cy = 300
dleft = (cx - lx) / 10
dright = (rx - cx) / 10
drr = (250 - 20) / 10
drl = (150 - 20) / 10
For i = 0 To 9
    If i Mod 2 = 0 Then c~& = light~& Else c~& = grass~&
    If i < 4 Then adj = 10 Else adj = 0
    FCirc lx + dleft * i - adj, cy, lx - i * drl + 2 * adj, c~&
    FCirc rx - dright * i + adj, cy, 250 - i * drr + 2 * adj, c~&
Next
FCirc 0, cy, 100, grass~&
FCirc 800, cy, 170, grass~&
FCirc 110, cy - 30, 20, light~&
FCirc 110, cy + 30, 20, light~&

Sub FCirc (CX As Long, CY As Long, R As Long, C As _Unsigned Long)
    $If WEB Then
            G2D.FillCircle CX, CY, R, C
    $Else
        Dim Radius As Long, RadiusError As Long
        Dim X As Long, Y As Long
        Radius = Abs(R): RadiusError = -Radius: X = Radius: Y = 0
        If Radius = 0 Then PSet (CX, CY), C: Exit Sub
        Line (CX - X, CY)-(CX + X, CY), C, BF
        While X > Y
            RadiusError = RadiusError + Y * 2 + 1
            If RadiusError >= 0 Then
                If X <> Y + 1 Then
                    Line (CX - Y, CY - X)-(CX + Y, CY - X), C, BF
                    Line (CX - Y, CY + X)-(CX + Y, CY + X), C, BF
                End If
                X = X - 1
                RadiusError = RadiusError - X * 2
            End If
            Y = Y + 1
            Line (CX - X, CY - Y)-(CX + X, CY - Y), C, BF
            Line (CX - X, CY + Y)-(CX + X, CY + Y), C, BF
        Wend
    $End If
End Sub
   
b = b + ...
Reply
#87
Already with a mod!
Code: (Select All)
_Title "SpiderMans Crop Circle mod" ' b+ 2023-07-24

Screen _NewImage(800, 600, 32)
_ScreenMove 250, 50
grass~& = &HFF008800: light~& = &HFFDDFF00
Color , grass~&: Cls
cx = 300
lx = 150
rx = 550
cy = 300
dleft = (cx - lx) / 10
dright = (rx - cx) / 10
drr = (250 - 20) / 10
drl = (150 - 20) / 10
For i = 0 To 4
    If i Mod 2 = 0 Then c~& = light~& Else c~& = grass~&
    If i < 4 Then adj = 10 Else adj = 0
    FCirc lx + dleft * i - adj, cy, lx - i * drl + 2 * adj, c~&
    FCirc rx - dright * i + adj, cy, 250 - i * drr + 2 * adj, c~&
Next
FCirc 0, cy, 100, grass~&
FCirc 800, cy, 170, grass~&
FCirc 110, cy - 30, 20, light~&
FCirc 110, cy + 30, 20, light~&

Sub FCirc (CX As Long, CY As Long, R As Long, C As _Unsigned Long)
    $If WEB Then
            G2D.FillCircle CX, CY, R, C
    $Else
        Dim Radius As Long, RadiusError As Long
        Dim X As Long, Y As Long
        Radius = Abs(R): RadiusError = -Radius: X = Radius: Y = 0
        If Radius = 0 Then PSet (CX, CY), C: Exit Sub
        Line (CX - X, CY)-(CX + X, CY), C, BF
        While X > Y
            RadiusError = RadiusError + Y * 2 + 1
            If RadiusError >= 0 Then
                If X <> Y + 1 Then
                    Line (CX - Y, CY - X)-(CX + Y, CY - X), C, BF
                    Line (CX - Y, CY + X)-(CX + Y, CY + X), C, BF
                End If
                X = X - 1
                RadiusError = RadiusError - X * 2
            End If
            Y = Y + 1
            Line (CX - X, CY - Y)-(CX + X, CY - Y), C, BF
            Line (CX - X, CY + Y)-(CX + X, CY + Y), C, BF
        Wend
    $End If
End Sub


Attached Files Image(s)
   
b = b + ...
Reply
#88
In the middle of the night, I wake up and have an idea to slightly improve with more consistent pattern bplus old classic Particle Fountain. I just tweaked one number!
Code: (Select All)
_Title "Particle Fountain" 'b+ 2020-08-27
' 2023-08-17 tweaked a number for improved more consistent performance
Const nP = 50000
Type particle
    x As Single
    y As Single
    dx As Single
    dy As Single
    r As Single
    c As _Unsigned Long
End Type
Dim Shared p(1 To nP) As particle
Screen _NewImage(800, 600, 32)
_Delay .25
_ScreenMove _Middle
For i = 1 To nP
    new i
Next
Color , &HFF002200
Do
    Cls
    If lp < nP Then lp = lp + 10
    For i = 1 To lp
        p(i).dy = p(i).dy + .1
        p(i).x = p(i).x + p(i).dx
        p(i).y = p(i).y + p(i).dy
        If p(i).x < 0 Or p(i).x > _Width Then new i
        If p(i).y > _Height And p(i).dy > 0 Then
            p(i).dy = -.75 * p(i).dy: p(i).y = _Height - 5
        End If
        Circle (p(i).x, p(i).y), p(i).r, p(i).c
    Next
    _Display
    _Limit 60
Loop Until _KeyDown(27)
Sub new (i)
    p(i).x = _Width / 2 + Rnd * 20 - 10
    p(i).y = _Height + Rnd * 5
    p(i).dx = Rnd * 1 - .5
    p(i).dy = -10
    p(i).r = Rnd * 3
    p(i).c = _RGB32(50 * Rnd + 165, 50 * Rnd + 165, 255)
End Sub

   

dbox has a really nice version of this using pset instead of circles on QBJS. Let me see if the link to it works here:

Yeah I applied the same tweak to the pset code and the pattern remain more consistent throughout run:
https://qbjs.org/index.html?code=J09wdGl...UDUVN1YgoK

Tweaked it again here: https://staging.qb64phoenix.com/showthre...5#pid18725
b = b + ...
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#89
Now... where have I seen 'this' before?

Regardless... Still cool....
May your journey be free of incident. Live long and prosper.
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#90
Psychedelic Star Swirl

Well according to Search here i haven't posted this one yet.

Just got it working in QBJS as well with following code:
Code: (Select All)
'Option _Explicit
'_Title "Psychedelic Star Swirl bplus 2018-03-04"  ' attempt QBJS
' translated from
' Psychedelic Star Swirl.bas SmallBASIC 0.12.8 [B+=MGA] 2017-03-03
' Spiral Pearl Swirl 4 SB.bas  SmallBASIC 0.12.8 [B+=MGA] 2017-03-01
' from Spiral Pearl Swirl.bas for FreeBASIC [B+=MGA] 2017-02-28
' from SdlBasic 3d version 2017-02-28
' inspired by spiral Bang
Const xmax = 1200
Const ymax = 760
Screen _NewImage(xmax, ymax, 32)
'_ScreenMove 70, 0

Dim Shared r, g, b, clr
'whatever screen size your device here is middle
Dim cx, cy, k$, size, radius, angle, sangle, x, y, r2
cx = xmax / 2: cy = ymax / 2: r = Rnd: g = Rnd: b = Rnd: k$ = " "
While _KeyDown(27) = 0
    size = 1
    radius = .06
    angle = sangle
    Cls
    While radius < 800
        x = Cos(angle) * radius
        y = Sin(angle) * radius
        r2 = (x ^ 2 + y ^ 2) ^ .5
        size = 4 * r2 ^ .25
        For r = size To 1 Step -4
            'cc = 160 + 95 * radius/400 - r/size*120
            chColor
            star cx + x, cy + y, r / 3, r * 1.6, 5, Rnd * 360
        Next
        angle = angle - .4
        radius = radius + 1
    Wend
    _Display ' update screen with new image
    _Limit 15 '<<<<<<<<<<<<<<<<<<<<<<<<<< adjust to higher speeds if you dare
    sangle = sangle + _Pi(1 / 18)
Wend

Sub star (x, y, rInner, rOuter, nPoints, angleOffset)
    ' x, y are same as for circle,
    ' rInner is center circle radius
    ' rOuter is the outer most point of star
    ' nPoints is the number of points,
    ' angleOffset = angle offset IN DEGREES, it will be converted to radians in sub
    ' this is to allow us to spin the polygon of n sides
    Dim pAngle, radAngleOffset, x1, y1, i, x2, y2, x3, y3
    pAngle = RAD(360 / nPoints): radAngleOffset = RAD(angleOffset)
    x1 = x + rInner * Cos(radAngleOffset)
    y1 = y + rInner * Sin(radAngleOffset)
    For i = 0 To nPoints - 1
        x2 = x + rOuter * Cos(i * pAngle + radAngleOffset + .5 * pAngle)
        y2 = y + rOuter * Sin(i * pAngle + radAngleOffset + .5 * pAngle)
        x3 = x + rInner * Cos((i + 1) * pAngle + radAngleOffset)
        y3 = y + rInner * Sin((i + 1) * pAngle + radAngleOffset)
        Line (x1, y1)-(x2, y2)
        Line (x2, y2)-(x3, y3)
        x1 = x3: y1 = y3
    Next
End Sub

Sub chColor ()
    clr = clr + 1
    Color _RGB32(127 + 127 * Sin(r * clr), 127 + 127 * Sin(g * clr), 127 + 127 * Sin(b * clr))
    If clr > 100000 Then r = Rnd * Rnd: g = Rnd * Rnd: b = Rnd * Rnd: clr = 0
End Sub
Function RAD (dA)
    RAD = _Pi(dA / 180)
End Function

Psychedelic Star Swirl

   
b = b + ...
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