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| − | Logo code saved from Turtle Art Turing Machine session | + | == Turtle Art/Tutorials/Logo Code for Turtle Art Turing Machine == |
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| − | <pre>window
| + | Read at https://help.sugarlabs.org/turtleart_tutorials/logo_code_for_turing_machine.html |
| | | | |
| − | comment: functions that implement Turtle Art blocks
| + | The source file has been moved to [https://github.com/godiard/help-activity/blob/master/source/turtleart_tutorials/logo_code_for_turing_machine.rst GitHub] |
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| − | to tasetpalette :i :r :g :b :myshade | |
| − | make "s ((:myshade - 50) / 50)
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| − | ifelse lessp :s 0 [
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| − | make "s (1 + (:s *0.8))
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| − | make "r (:r * :s)
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| − | make "g (:g * :s)
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| − | make "b (:b * :s)
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| − | ] [ make "s (:s * 0.9)
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| − | make "r (:r + ((99-:r) * :s))
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| − | make "g (:g + ((99-:g) * :s))
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| − | make "b (:b + ((99-:b) * :s))
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| − | ] setpalette :i (list :r :g :b)
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| − | end
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| − | | |
| − | | |
| − | to rgb :myi :mycolors :myshade
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| − | make "myr first :mycolors
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| − | make "mycolors butfirst :mycolors
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| − | make "myg first :mycolors
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| − | make "mycolors butfirst :mycolors
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| − | make "myb first :mycolors
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| − | make "mycolors butfirst :mycolors
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| − | tasetpalette :myi :myr :myg :myb :myshade
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| − | output :mycolors
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| − | end
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| − | | |
| − | | |
| − | to processcolor :mycolors :myshade
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| − | if emptyp :mycolors [stop]
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| − | make "i :i + 1
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| − | processcolor (rgb :i :mycolors :myshade) :myshade
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| − | end
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| − | | |
| − | | |
| − | to tasetshade :shade
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| − | make "myshade modulo :shade 200
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| − | if greaterp :myshade 99 [make "myshade (199-:myshade)]
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| − | make "i 7
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| − | make "mycolors :colors
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| − | processcolor :mycolors :myshade
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| − | end
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| − | | |
| − | | |
| − | to tasetpencolor :c
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| − | make "color (modulo (round :c) 100)
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| − | setpencolor :color + 8
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| − | end
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| − | | |
| − | | |
| − | make "colors [
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| − | 99 0 0
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| − | 99 5 0
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| − | 99 10 0
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| − | 99 15 0
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| − | 99 20 0
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| − | 99 25 0
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| − | 99 30 0
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| − | 99 35 0
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| − | 99 40 0
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| − | 99 45 0
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| − | 99 50 0
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| − | 99 55 0
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| − | 99 60 0
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| − | 99 65 0
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| − | 99 70 0
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| − | 99 75 0
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| − | 99 80 0
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| − | 99 85 0
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| − | 99 90 0
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| − | 99 95 0
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| − | 99 99 0
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| − | 90 99 0
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| − | 80 99 0
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| − | 70 99 0
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| − | 60 99 0
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| − | 50 99 0
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| − | 40 99 0
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| − | 30 99 0
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| − | 20 99 0
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| − | 10 99 0
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| − | 0 99 0
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| − | 0 99 5
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| − | 0 99 10
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| − | 0 99 15
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| − | 0 99 20
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| − | 0 99 25
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| − | 0 99 30
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| − | 0 99 35
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| − | 0 99 40
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| − | 0 99 45
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| − | 0 99 50
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| − | 0 99 55
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| − | 0 99 60
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| − | 0 99 65
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| − | 0 99 70
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| − | 0 99 75
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| − | 0 99 80
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| − | 0 99 85
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| − | 0 99 90
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| − | 0 99 95
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| − | 0 99 99
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| − | 0 95 99
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| − | 0 90 99
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| − | 0 85 99
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| − | 0 80 99
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| − | 0 75 99
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| − | 0 70 99
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| − | 0 65 99
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| − | 0 60 99
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| − | 0 55 99
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| − | 0 50 99
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| − | 0 45 99
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| − | 0 40 99
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| − | 0 35 99
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| − | 0 30 99
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| − | 0 25 99
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| − | 0 20 99
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| − | 0 15 99
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| − | 0 10 99
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| − | 0 5 99
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| − | 0 0 99
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| − | 5 0 99
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| − | 10 0 99
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| − | 15 0 99
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| − | 20 0 99
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| − | 25 0 99
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| − | 30 0 99
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| − | 35 0 99
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| − | 40 0 99
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| − | 45 0 99
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| − | 50 0 99
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| − | 55 0 99
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| − | 60 0 99
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| − | 65 0 99
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| − | 70 0 99
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| − | 75 0 99
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| − | 80 0 99
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| − | 85 0 99
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| − | 90 0 99
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| − | 95 0 99
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| − | 99 0 99
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| − | 99 0 90
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| − | 99 0 80
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| − | 99 0 70
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| − | 99 0 60
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| − | 99 0 50
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| − | 99 0 40
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| − | 99 0 30
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| − | 99 0 20
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| − | 99 0 10]
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| − | make "shade 50
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| − | tasetshade :shade
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| − | | |
| − | | |
| − | to tapop
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| − | if emptyp :taheap [stop]
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| − | make "tmp first :taheap
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| − | make "taheap butfirst :taheap
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| − | output :tmp
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| − | end
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| − | | |
| − | | |
| − | to taminus :y :x
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| − | output sum :x minus :y
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| − | end
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| − | | |
| − | | |
| − | to tasetxy :x :y
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| − | setxy :x :y
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| − | end
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| − | | |
| − | | |
| − | comment: Turing Machine procedures
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| − | | |
| − | | |
| − | to turtleblocks_0
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| − | comment: Comment
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| − | #sTuring_Machine
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| − | end
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| − | | |
| − | | |
| − | to start
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| − | comment: main program
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| − | comment: Creates and initializes necessary variables, writes program block, writes tape, runs program
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| − | clean #sSetup #sProgram #sTape #sExecute
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| − | end
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| − | | |
| − | | |
| − | to #sSetup
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| − | comment: Create variables, set initial values
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| − | right 90.0
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| − | setpensize 25.0
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| − | tasetpencolor 0.0
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| − | tasetshade 50.0 penup
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| − | make "#scell 0.0
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| − | make "#ssymbol 0.0
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| − | make "#smove 0.0
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| − | make "#sstate 1.0
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| − | make "#sleftedge -390.0
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| − | make "#stapey 290.0
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| − | make "#sprogramy 200.0
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| − | make "#scellwidth 25.0
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| − | make "#sright 1.0
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| − | make "#shalt 4.0
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| − | make "#sA 3.0
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| − | make "#sB 2.0
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| − | end
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| − | | |
| − | | |
| − | to #sTape
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| − | comment: Write initial tape. User can change values in repeat statements to change arguments.
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| − | #sToTape
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| − | pendown
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| − | tasetpencolor 20.0
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| − | repeat #sA [ #sWriteCell ]
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| − | tasetpencolor 0.0
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| − | #sWriteCell
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| − | tasetpencolor 20.0
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| − | repeat #sB [ #sWriteCell ]
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| − | tasetpencolor 0.0
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| − | #sWriteCell #sToTape penup
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| − | end
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| − | | |
| − | | |
| − | to #sProgram
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| − | comment: Write program table
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| − | tasetxy :#sleftedge :#sprogramy
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| − | tasetpencolor 20.0
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| − | #sWriteCell
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| − | tasetpencolor 20.0
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| − | #sWriteCell
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| − | tasetpencolor 40.0
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| − | #sWriteCell
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| − | tasetxy :#sleftedge taminus ycor :#scellwidth
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| − | tasetpencolor 20.0
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| − | #sWriteCell
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| − | tasetpencolor 20.0
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| − | #sWriteCell
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| − | tasetpencolor 20.0
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| − | #sWriteCell
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| − | tasetxy :#sleftedge taminus ycor :#scellwidth
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| − | tasetpencolor 0.0
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| − | #sWriteCell
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| − | tasetpencolor 0.0
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| − | #sWriteCell
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| − | tasetpencolor 60.0
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| − | #sWriteCell
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| − | stack1
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| − | end
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| − | | |
| − | to stack1
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| − | comment: Continuation of Program so that the segments fit on the Turtle Art screen
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| − | tasetxy :#sleftedge taminus ycor :#scellwidth
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| − | tasetpencolor 20.0
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| − | #sWriteCell
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| − | tasetpencolor 20.0
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| − | #sWriteCell
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| − | tasetpencolor 40.0
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| − | #sWriteCell
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| − | tasetxy :#sleftedge taminus ycor :#scellwidth
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| − | tasetpencolor 0.0
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| − | #sWriteCell
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| − | tasetpencolor 20.0
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| − | #sWriteCell
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| − | tasetpencolor 80.0
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| − | #sWriteCell
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| − | tasetxy
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| − | :#sleftedge taminus ycor
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| − | :#scellwidth
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| − | tasetpencolor 0.0
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| − | #sWriteCell
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| − | tasetpencolor 20.0
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| − | #sWriteCell
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| − | tasetpencolor 80.0
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| − | #sWriteCell
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| − | penup
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| − | end
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| − | | |
| − | | |
| − | to #sExecute
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| − | | |
| − | comment: Test for halt or next program step
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| − | make "#sstep 0.0
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| − | forever
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| − | [ ifelse ( equal? :#sstate :#shalt )
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| − | [ stop ]
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| − | [ #sReadPixel
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| − | #sSetValue
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| − | make "#ssymbol :#sValue
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| − | #sToProgram
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| − | wait 1.0
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| − | #sSetSymbol
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| − | forward :#scellwidth
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| − | #sSetMove
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| − | forward :#scellwidth
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| − | #sSetState
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| − | #sLog
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| − | #sToTape
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| − | #sWriteSymbol
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| − | #sNewCell
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| − | wait 1.0
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| − | make "#sstep sum :#sstep 1.0 ] ]
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| − | end
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| − | | |
| − | | |
| − | to #sToTape
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| − | comment: Move turtle to current cell on tape
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| − | tasetxy
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| − | sum :#sleftedge product :#scellwidth :#scell
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| − | :#stapey
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| − | end
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| − | | |
| − | | |
| − | to #sToProgram
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| − | comment: Move Turtle to beginning of current program row to execute
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| − | tasetxy
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| − | taminus :#sleftedge 3.0
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| − | taminus :#sprogramy product :#scellwidth sum :#ssymbol product 2.0 taminus :#sstate 1.0
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| − | end
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| − | | |
| − | | |
| − | to #sWriteCell
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| − | | |
| − | comment: Write current color to current cell, and move to next cell
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| − | pendown
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| − | forward 0.0
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| − | penup
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| − | forward :#scellwidth
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| − | end
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| − | | |
| − | | |
| − | to #sWriteSymbol
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| − | comment: Write current color in cell without moving
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| − | pendown
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| − | forward 0.0
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| − | penup
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| − | end
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| − | | |
| − | | |
| − | to #sReadPixel
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| − | | |
| − | comment: Read RGB values of pixel to stack, pop to variables
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| − | keyboard
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| − | make "#sR tapop
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| − | make "#sG tapop
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| − | make "#sB tapop
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| − | end
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| − | | |
| − | | |
| − | to #sSetValue
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| − | comment: Find value of cell symbol from RGB numbers
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| − | ifelse not ( equal? :#sB 128.0 )
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| − | [ ifelse not ( equal? :#sR 128.0 )
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| − | [ ifelse not ( equal? :#sG 128.0 )
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| − | [ ifelse ( equal? :#sG 0.0 )
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| − | [ make "#sValue 0.0 ]
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| − | [ make "#sValue 1.0 ] ]
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| − | [ make "#sValue 3.0 ] ]
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| − | [ make "#sValue 4.0 ] ]
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| − | [ make "#sValue 2.0 ]
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| − | end
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| − | | |
| − | | |
| − | to #sSetMove
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| − | comment: Read next Move direction from program table
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| − | #sReadPixel
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| − | #sSetValue
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| − | make "#smove :#sValue
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| − | end
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| − | | |
| − | | |
| − | to #sSetSymbol
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| − | comment: Read next Symbol to write from program table
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| − | #sReadPixel
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| − | #sSetValue
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| − | make "#ssymbol :#sValue
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| − | ifelse ( equal? :#ssymbol 0.0 )
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| − | [ tasetpencolor 0 ]
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| − | [ tasetpencolor 20.0 ]
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| − | end
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| − | | |
| − | | |
| − | to #sSetState
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| − | comment: Read next State from program table
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| − | #sReadPixel
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| − | #sSetValue
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| − | make "#sstate :#sValue
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| − | end
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| − | | |
| − | | |
| − | to #sNewCell
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| − | comment: Move left or right and set cell number of new location
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| − | ifelse ( equal? :#smove :#sright )
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| − | [ forward :#scellwidth
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| − | make "#scell sum :#scell 1.0 ]
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| − | [ back :#scellwidth
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| − | make "#scell taminus :#scell 1.0 ]
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| − | end
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| − | | |
| − | | |
| − | to #sLog
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| − | comment: Write Step number, Symbol, Move, State, Cell number on new log line in black, saving and restoring
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| − | comment: current position and current color
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| − | make "#sx xcor
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| − | make "#sy ycor
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| − | tasetxy -300.0 taminus 200.0 product 20.0 :#sstep
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| − | make "#scolor pencolor
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| − | tasetpencolor 0
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| − | label sentence ('box', "427)
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| − | #sstep
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| − | forward 30.0
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| − | label sentence ('box', "339)
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| − | #ssymbol
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| − | forward 20.0
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| − | label sentence ('box', "341)
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| − | #smove
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| − | forward 20.0
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| − | label sentence ('box', "537)
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| − | #sstate
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| − | forward 20.0
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| − | label sentence ('box', "562)
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| − | #scell
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| − | tasetpencolor :#scolor
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| − | end
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| − | </pre>
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