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stanleyella

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Joined: 25/06/2022
Location: United Kingdom
Posts: 2112

Posted: 06:54pm 10 Oct 2024

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remember etch a sketch? https://www.ebay.co.uk/itm/286063259141
I had one as a kid, it was crap

Mixtel90

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Joined: 05/10/2019
Location: United Kingdom
Posts: 6772

Posted: 09:11pm 10 Oct 2024

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They are more fun when you attach stepper motors to the knobs. :)

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

javavi

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Joined: 01/10/2023
Location: Ukraine
Posts: 203

Posted: 04:52am 11 Oct 2024

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Spirograph in monochrome & colour mode (1,2)
under .MOD music for your meditations :))

SPIROGRAPH.zip

Martin H.

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Joined: 04/06/2022
Location: Germany
Posts: 1113

Posted: 07:53am 11 Oct 2024

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La Linea

CLS
Restore lalinea
n=1
Read x1,y1
Do
Read x2,y2:Inc n:If x2=0 Then Exit
If y2=255 Then Read x1,y1,x2,y2:Inc n,2
Line x1,y1,x2,y2:Line x1+1,y1,x2+1,y2:Line x1,y1+1,x2,y2+1
x1=x2:y1=y2
Loop
'Print n
LaLinea:
Data 1,149,46,149,1,255,90,149,112,149,112,136,111,119,110,105,106,89
Data 73,104,72,113,70,119,68,125,67,126,65,123,63,122,64,119,61,118
Data 62,113,65,106,60,106,58,102,65,102,104,78,100,73,99,70,99,65,101,61
Data 104,55,113,48,119,44,125,41,130,40,131,43,131,47,129,50,124,54,118,57
Data 125,57,122,63,121,67,121,76,124,80,127,79,130,74,131,71,132,71,134,76
Data 139,77,149,82,151,84,151,88,147,100,144,104,146,107,148,104,150,108
Data 149,110,150,108,153,109,152,112,149,115,153,121,152,124,150,123,144,117
Data 143,135,142,144,140,149,223,149

Data 0,0

'no comment

javavi

Senior Member

Joined: 01/10/2023
Location: Ukraine
Posts: 203

Posted: 12:48pm 11 Oct 2024

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Martin H. said La Linea

La BuBla Owl

NX=18:NY=21
CSIZE=MM.VRes\(NY+2)
SX=(MM.HRes-CSIZE*NX)\2
SX=MM.HRes-SX-CSIZE\2
SY=(MM.VRes-CSIZE*NY)\2
SY=SY+CSIZE\2
R=CSIZE/1.3

Restore OWL
For IY=0 To NY-1
Read D%
For IX=0 To NX-1
X=SX-IX*CSIZE
Y=SY+IY*CSIZE
If D% And 2^IX Then B=1 Else B=0
If B Then Circle X,Y,R,,,0,1
Next
Next
OWL:
Data &H15555,&H08282,&H11111,&H02828
Data &H11011,&H08282,&H14105,&H0A008
Data &H15551,&H0AA00,&H15501,&H0AA00
Data &H05501,&H02A80,&H01541,&H00AA0
Data &H00551,&H00228,&H00445,&H0AAA2
Data &H00001

matherp
Guru

Joined: 11/12/2012
Location: United Kingdom
Posts: 9101

Posted: 02:18pm 13 Oct 2024

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Here is one modified from the CMM2 Welcome tape originally written by Sasquatch.
Will run as-is on RP2350 VGA or HDMI or change to mode 0 for RP2040 VGA (black and white)
The code should give you most (all?) of the tools needed to implement the other CMM2 turtle demos https://github.com/thwill1000/cmm2-welcome/tree/master/turtle

Option explicit
Option default none
Dim integer TurtlePenup=1,TurtlePenColour=MM.Info(fcolour)
Dim float TurtleDirection=0.0
Dim float TurtleX,TurtleY
MODE 3
Option angle degrees
Option console none
'
Text 0, 0, "Random Recursive Fractal Pine Tree", "", 2
Text 2, 25, "Press Q to Quit", "", 1
turtle.penup
turtle.move MM.HRes\2,400
turtle.pendown
PineTree 70,19
Do :Loop Until Inkey$="Q"
Save image "b:/pine"
'
Sub pinetree(l!,d!)
If d!<0 Then Exit Sub
Local a!=110+20*Rnd
If l!>5 Then
Turtle.pen.colour(139,69,19)
Else
turtle.pen.colour(0,100,0)
EndIf
turtle.forward l!
pinetree l!*0.8, d!-1
turtle.turn.right a!
PineTree l! * 0.5, d! - 3
turtle.turn.right 120
PineTree l! * 0.5, d! - 3
turtle.turn.right 240-a!
turtle.penup
turtle.backward l!
turtle.pendown
End Sub
'
Sub turtle.move(x!, y!)
If Not TurtlePenup Then Line TurtleX,TurtleY,x!,y!,1,TurtlePenColour
TurtleX=x!
TurtleY=y!
End Sub
'
Sub turtle.penup
TurtlePenup=1
End Sub
'
Sub turtle.pendown
TurtlePenup=0
End Sub
'
Sub turtle.turn.right(a!)
Inc TurtleDirection,a!
If TurtleDirection!>360.0 Then Inc TurtleDirection!,-360.0
End Sub
'
Sub turtle.turn.left(a!)
Inc TurtleDirection,-a!
If TurtleDirection!<0.0 Then Inc TurtleDirection!,360.0
End Sub
'
Sub turtle.backward(l!)
Local x!=TurtleX-Sin(TurtleDirection!)*l!
Local y!=TurtleY+Cos(TurtleDirection!)*l!
If Not TurtlePenup Then Line TurtleX,TurtleY,x!,y!,1,TurtlePenColour
TurtleX=x!
TurtleY=y!
End Sub
'
Sub turtle.forward(l!)
Local x!=TurtleX+Sin(TurtleDirection!)*l!
Local y!=TurtleY-Cos(TurtleDirection!)*l!
If Not TurtlePenup Then Line TurtleX,TurtleY,x!,y!,1,TurtlePenColour
TurtleX=x!
TurtleY=y!
End Sub
'
Sub turtle.pen.colour(r%,g%,b%)
TurtlePenColour=(r%<<16) + (g%<<8) + b%
End Sub

Edited 2024-10-14 00:43 by matherp

javavi

Senior Member

Joined: 01/10/2023
Location: Ukraine
Posts: 203

Posted: 05:15pm 20 Oct 2024

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The Black Hole Mystery

MODE 2: CLS
x0=MM.HRes/2: y0=MM.VRes/2
z =2

Do
n=(Int(Rnd*7)+1)*7000+1000
a=(Int(Rnd*18)+3)+10
b=Int(Rnd*19)/10+0.1
c=-(Int(Rnd*4)+1)*10
For i=1 To 3
Clr=Int(Rnd*&hFFFF00)+&hFF
Tracery
Next i
Clr=0
Tracery
Loop While Inkey$=""

Sub Tracery
x=x0: y=y0
For j=1 To n
Pixel x+63, y+42, Clr
u=y-Sgn(x-x0)*(Abs(b*(x-x0)-c))^1/z
w=a-x+x0: x=u: y=w
Next j
End Sub

Edited 2024-10-21 03:16 by javavi

javavi

Senior Member

Joined: 01/10/2023
Location: Ukraine
Posts: 203

Posted: 09:42am 26 Oct 2024

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Fractal Lace

CLS
A=1:B=-1:C=-13:K1=1.5:K2=1.5:X=0:Y=0
Do
Pixel 320+Int(K1*X*4),240+Int(K2*Y*4)
S=(X<0)-(X>=0)
TMP=Y
Y=A-X
X=TMP-S*Log(Sqr(Abs(B*X-C)))
Loop Until Inkey$<>""

stanleyella

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Joined: 25/06/2022
Location: United Kingdom
Posts: 2112

Posted: 10:17pm 01 Nov 2024

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no lines but if there were they would not look curved
try it, better than picture

mode 2
cls
'1
x=0:y=0
b1:inc x,24:b2:inc x,24:b1:inc x,24:b3:inc x,24:b4:inc x,24:b2:inc x,24:b1:inc x,24:b2
inc x,24:b1:inc x,24:b2:inc x,24:b1:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b4:inc x,24:b2
'2
inc y,24:x=0
b3:inc x,24:b1:inc x,24:b2:inc x,24:b1:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b4
inc x,24:b3:inc x,24:b1:inc x,24:b2:inc x,24:b1:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b4
'3
inc y,24:x=0
b4:inc x,24:b3:inc x,24:b1:inc x,24:b2:inc x,24:b1:inc x,24:b3:inc x,24:b4:inc x,24:b3
inc x,24:b4:inc x,24:b3:inc x,24:b1:inc x,24:b2:inc x,24:b1:inc x,24:b3:inc x,24:b4:inc x,24:b3
'4
inc y,24:x=0
b3:inc x,24:b4:inc x,24:b3:inc x,24:b1:inc x,24:b2:inc x,24:b1:inc x,24:b3:inc x,24:b4
inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b1:inc x,24:b2:inc x,24:b1:inc x,24:b3:inc x,24:b4
'5
inc y,24:x=0
b4:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b1:inc x,24:b2:inc x,24:b1:inc x,24:b3
inc x,24:b4:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b1:inc x,24:b2:inc x,24:b1:inc x,24:b3
'6
inc y,24:x=0
b2:inc x,24:b4:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b1:inc x,24:b2:inc x,24:b1
inc x,24:b2:inc x,24:b4:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b1:inc x,24:b2:inc x,24:b1
'7
inc y,24:x=0
b1:inc x,24:b2:inc x,24:b4:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b1:inc x,24:b2
inc x,24:b1:inc x,24:b2:inc x,24:b4:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b1:inc x,24:b2
'8
inc y,24:x=0
b2:inc x,24:b1:inc x,24:b2:inc x,24:b4:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b1
inc x,24:b2:inc x,24:b1:inc x,24:b2:inc x,24:b4:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b1
'9
inc y,24:x=0
b1:inc x,24:b2:inc x,24:b1:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b4:inc x,24:b2
inc x,24:b1:inc x,24:b2:inc x,24:b1:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b4:inc x,24:b2
'10
inc y,24:x=0
b3:inc x,24:b1:inc x,24:b2:inc x,24:b1:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b4
inc x,24:b3:inc x,24:b1:inc x,24:b2:inc x,24:b1:inc x,24:b3:inc x,24:b4:inc x,24:b3:inc x,24:b4
'11
inc y,24:x=0
b4:inc x,24:b3:inc x,24:b1:inc x,24:b2:inc x,24:b1:inc x,24:b3:inc x,24:b4:inc x,24:b3
inc x,24:b4:inc x,24:b3:inc x,24:b1:inc x,24:b2:inc x,24:b1:inc x,24:b3:inc x,24:b4:inc x,24:b3

do:loop

sub b1:
box x,y,24,24,0,rgb(white),rgb(white)
box x+2,y+2,8,8,0,rgb(black),rgb(black)
box x+14,y+14,8,8,0,rgb(black),rgb(black)
end sub

sub b2:
box x,y,24,24,0,rgb(black),rgb(black)
box x+2,y+2,8,8,0,rgb(white),rgb(white)
box x+14,y+14,8,8,0,rgb(white),rgb(white)
end sub

sub b3:
box x,y,24,24,0,rgb(black),rgb(black)
box x+2,y+14,8,8,0,rgb(white),rgb(white)
box x+14,y+2,8,8,0,rgb(white),rgb(white)
end sub

sub b4:
box x,y,24,24,0,rgb(white),rgb(white)
box x+2,y+14,8,8,0,rgb(black),rgb(black)
box x+14,y+2,8,8,0,rgb(black),rgb(black)
end sub

Edited 2024-11-02 08:58 by stanleyella

javavi

Senior Member

Joined: 01/10/2023
Location: Ukraine
Posts: 203

Posted: 06:59pm 07 Nov 2024

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DISCO BALL

MODE 2
Option ANGLE DEGREES
FRAMEBUFFER CREATE
FRAMEBUFFER WRITE F
RX=MM.HRes: RY=MM.VRes: CX=RX/2: CY=RY/2
Umin=-180: Umax=180: Ustep=15
Vmin= -90: Vmax= 90: Vstep=15
SCALE=CY-CY/10

Do
For S=0 To 12 Step 3
CLS
For V= Vmin To Vmax Step Vstep
For U= Umin To Umax Step Ustep
U=U+S
X=Cos(U)*Cos(V)
Y=Sin(U)*Cos(V)
Z=Sin(V)
U=U-S
C=Rnd*&hFFFFFF
Plot_XY
If Inkey$ <> "" Then End
Next U: Next V
FRAMEBUFFER COPY F,N,B
Next S
Loop While Inkey$=""

Sub Plot_XY
X=SCALE*X: Y=SCALE*Y: Z=SCALE*Z
Y=Y/4
X1=X-Y+CX: Y1=Z-Y+CY
If y<0 Then
Circle X1,Y1,2,,,C,C
Else
Pixel X1,Y1
EndIf
End Sub

Edited 2024-11-08 05:00 by javavi

stanleyella

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Joined: 25/06/2022
Location: United Kingdom
Posts: 2112

Posted: 07:31pm 07 Nov 2024

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neat! hdmi 2350

javavi

Senior Member

Joined: 01/10/2023
Location: Ukraine
Posts: 203

Posted: 01:37am 17 Nov 2024

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The Mystery of the 9th Planet

FRAMEBUFFER CREATE
FRAMEBUFFER WRITE F
CX=MM.HRes\2: CY=MM.VRes\2
A=CX*5:C=&hFFFFFF
Do
CLS
For i=7 To 31 Step 3
For j=0 To 324 Step 9
x=CX+A*Sin(j+i+t*i/200)\i
y=CY+A*Cos(j+i*0.3+t/2)\i
If j=0 Then Circle x,y,3,,,,C
Pixel x,y
Next
Next
t=t+.05
Circle CX,CY,9,,,,C

FRAMEBUFFER COPY F,N,B
Loop Until Inkey$ <> ""

javavi

Senior Member

Joined: 01/10/2023
Location: Ukraine
Posts: 203

Posted: 08:07pm 17 Nov 2024

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Morph

MODE 2
Dim CM(15)=(0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15)
Colour Map CM(),CM()

W=MM.HRes:H=MM.VRes
C=-0.77:D=0.27015
For X%=0 To W Step 1
For Y%=0 To H Step 1
U=3*(X%-W/2)/W
V=2*(Y%-H/2)/H
I%=16
Do
I%=I%-1
A=U*U:B=V*V
T=A-B+C
V=2*U*V+D
U=T
Loop Until A+B>2.2 Or I%<1
Colour CM(I%)
Pixel X%,Y%
Pixel W-X%,H-Y%
Next
Next

stanleyella

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Joined: 25/06/2022
Location: United Kingdom
Posts: 2112

Posted: 08:51pm 17 Nov 2024

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liked 9th planet

javavi

Senior Member

Joined: 01/10/2023
Location: Ukraine
Posts: 203

Posted: 06:11pm 18 Nov 2024

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Geometric abstractionism

MODE 2
Do :CLS
For K=1 To 200
Q=Int(Rnd*5+3):If Q=7 Then Q=30
A=Rad(360/Q):S=Sin(A):C=Cos(A)
X=Rnd*320-2:Y=Rnd*240-2
R=Rnd*(Sqr(Y+X)/20)*20+16
For L=-R/5 To R/5
N=(Abs(L)<R/8)*Int(Rnd*16)
U=R+L:V=U
X1=X+U:Y1=Y+V
For I=1 To Q
T=V*C-U*S:U=V*S+U*C:V=T
X2=X+U:Y2=Y+V
Line X1,Y1,X2,Y2,,Map(N)
X1=X2:Y1=Y2
Next I: Next L: Next K
Pause 2000
Loop

lizby
Guru

Joined: 17/05/2016
Location: United States
Posts: 3150

Posted: 08:13pm 18 Nov 2024

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Such complexity with so few lines of code. Astonishing.

PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed

Pluto
Guru

Joined: 09/06/2017
Location: Finland
Posts: 357

Posted: 08:55pm 18 Nov 2024

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Superb art!

Wonder if you can imagine the picture while writing the code

stanleyella

Guru

Joined: 25/06/2022
Location: United Kingdom
Posts: 2112

Posted: 10:12pm 18 Nov 2024

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RUN
[7] R=Rnd*(Sqr(Y+X)/20)*20+16
Error : Negative argument
>

javavi

Senior Member

Joined: 01/10/2023
Location: Ukraine
Posts: 203

Posted: 12:33am 19 Nov 2024

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stanleyella said Error : Negative argument

Thanks, fixed it!
Now this art will be with us forever! ∞

MODE 2
Do :CLS
For K=1 To 200
Q=Int(Rnd*5+3): If Q=7 Then Q=30
A=Rad(360/Q): S=Sin(A): C=Cos(A)
X=Rnd*MM.HRes: Y=Rnd*MM.VRes
R=Rnd*(Sqr(Y+X)/20)*20+16
For L=-R/5 To R/5
N=(Abs(L)<R/8)*Int(Rnd*16)
U=R+L: V=U
X1=X+U: Y1=Y+V
For I=1 To Q
T=V*C-U*S: U=V*S+U*C: V=T
X2=X+U: Y2=Y+V
Line X1,Y1,X2,Y2,,Map(N)
X1=X2: Y1=Y2
Next I
Next
Next
Pause 1000
Loop

Edited 2024-11-19 10:57 by javavi

Martin H.

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Joined: 04/06/2022
Location: Germany
Posts: 1113

Posted: 07:49am 19 Nov 2024

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a litle animation inspired by the planet 9 demo

Mode 2
a=100:b=3:xc=160:yc=120
For n=0 To 9:For i=n To 180 Step 10
t=(i+90)*Pi/180:x=a*Cos(t):y=b*Sin(t):cl=(y<0):ball xc+x,n*20+yc+y-112,cl
Next: For i=170+n To n Step -10
t=(i-90)*Pi/180:x=a*Cos(t):y=b*Sin(t):cl=(y<0):ball xc+x,n*20+yc+y-112,cl
Next:Next
Do
Blit 0,0,0,200,320,20:Blit 0,20,0,0,320,220:FRAMEBUFFER wait
Loop
Sub ball bx,by,cl
For d=6 To 1Step -1
If cl Then :Color RGB(255,255-d*42,0):Else :Color RGB(0,255-d*42,255):EndIf
Circle bx+d/2,by+d/2,d,d
Next
End Sub

Edited 2024-11-19 22:03 by Martin H.

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