This is a working PB program: (require test-engine/racket-tests) (require 2htdp/image) (require 2htdp/universe)
(big-bang 100 (to-draw (lambda (x) (circle (+ x 1) 'solid 'red))) (on-tick sub1) (stop-when zero?)) (test) Now please do the rest of your homework yourself. > On Jan 26, 2019, at 2:55 PM, orenpa11 <oren...@gmail.com> wrote: > > Hi Matthias , > I am sorry but I still did get it. > should I import the snake file that was written in "Beginning Student with > List Abbreviations" and the code will be chnaged to pretty big ? > or only the "check-expect" is been chnaged from "Beginning Student with List > Abbreviations" to pretty big ? > Does Pretty Big has drawing functions ? > > Thanks, > Or > > On Friday, January 25, 2019 at 5:33:50 PM UTC+2, Matthias Felleisen wrote: > > See below. I gave precise instructions. > > > > On Jan 25, 2019, at 10:27 AM, orenpa11 <ore...@gmail.com <javascript:>> > > wrote: > > > > OK, > > Got it , but how can I import the code of the snake program that was > > written in "Beginning Student with List Abbreviations" and chnage it to > > pretty big ? > > > > > > On Friday, January 25, 2019 at 4:08:40 PM UTC+2, Robby Findler wrote: > > You've opened the right dialog. Now type "test-" into it. You should > > see the file appear. Click on it. > > > > Robby > > > > On Fri, Jan 25, 2019 at 7:53 AM orenpa11 <ore...@gmail.com <>> wrote: > > > > > > Hi, > > > Sorry but I did not get it. > > > should I add the path to the rkt file or add the code ? > > > > > > Thanks, > > > Or > > > > > > On Friday, January 25, 2019 at 1:39:12 PM UTC+2, Matthias Felleisen > > > wrote: > > >> > > >> > > >> DrRacket -> File -> Open Require Path -> enter test- -> use mouse > > >> > > >> > > >> On Jan 24, 2019, at 11:11 PM, orenpa11 <ore...@gmail.com <>> wrote: > > >> > > >> Hi > > >> where can I find the test-engine ? > > >> I would like to copy the code and "play" with it. > > >> So I can understand it better . > > >> just copying the code is not helpful because I need to understand it. > > >> > > >> Thanks, > > >> Or > > >> > > >> On Thursday, January 24, 2019 at 11:54:34 PM UTC+2, Matthias Felleisen > > >> wrote: > > >>> > > >>> > > >>> Yes there is. Use (require test-engine/racket-tests) > > >>> at the top and (test) at the bottom. > > >>> > > >>> But it sounds like you’re copying and pasting homework > > >>> solutions. Hmph. > > >>> > > >>> > > >>> > > >>> > > >>> > On Jan 24, 2019, at 3:44 PM, orenpa11 <ore...@gmail.com <>> wrote: > > >>> > > > >>> > Hi Matthias , > > >>> > Unfortunately I need to write the project in pretty big language. > > >>> > The game is not written in pretty big language as far as I know. > > >>> > I thought that can copy andycode that was written in any language in > > >>> > racket to pretty big. > > >>> > Is there a way to transfer code that was written in "Beginning > > >>> > Student with List Abbreviations" to pretty big ? > > >>> > > > >>> > Thanks, > > >>> > Or > > >>> > > > >>> > > > >>> > > > >>> > > > >>> > On Thursday, January 24, 2019 at 9:19:14 PM UTC+2, Matthias Felleisen > > >>> > wrote: > > >>> > > > >>> > > > >>> > Where did you find the snake game? > > >>> > Where did it say it’s written in Pretty Big? > > >>> > > > >>> > We have not used Pretty Big in over a decade in education, > > >>> > neither does anyone in the Racket edu community proper. > > >>> > > > >>> > This community supports people readily wth answers, but > > >>> > we need to know what you know. > > >>> > > > >>> > — Matthias > > >>> > > > >>> > > > >>> > > > >>> > > > >>> > > On Jan 24, 2019, at 12:56 PM, orenpa11 <ore...@gmail.com <>> wrote: > > >>> > > > > >>> > > Hi > > >>> > > I need to create a project in pertty big . > > >>> > > why this code is not been supported ? > > >>> > > > > >>> > > Thanks, > > >>> > > Or > > >>> > > > > >>> > > On Thursday, January 24, 2019 at 3:29:11 PM UTC+2, Kieron Hardy > > >>> > > wrote: > > >>> > > The language you should be using is "Beginning Student with List > > >>> > > Abbreviations". > > >>> > > > > >>> > > On Jan 24, 2019, at 4:33 AM, orenpa11 <ore...@gmail.com <>> wrote: > > >>> > > > > >>> > >> Hi, > > >>> > >> when I removed the line > > >>> > >> #reader(lib "htdp-beginner-abbr-reader.ss" "lang")((modname > > >>> > >> snake-full) (read-case-sensitive #t) (teachpacks ()) > > >>> > >> (htdp-settings #(#t constructor repeating-decimal #f #t none #f > > >>> > >> ()))) > > >>> > >> > > >>> > >> And changed the language to pretty big. > > >>> > >> I recived this error: > > >>> > >> Welcome to DrRacket, version 7.1 [3m]. > > >>> > >> Language: Pretty Big; memory limit: 128 MB. > > >>> > >> . . check-expect: undefined; > > >>> > >> cannot reference an identifier before its definition > > >>> > >> > > >>> > >> Any idea ? > > >>> > >> > > >>> > >> Thanks, > > >>> > >> Or > > >>> > >> > > >>> > >> > > >>> > >> > > >>> > >> > > >>> > >> > > >>> > >> On Wednesday, January 23, 2019 at 10:49:01 PM UTC+2, Kieron Hardy > > >>> > >> wrote: > > >>> > >> It seems the metadata lines added by DrRacket (mentioned by John) > > >>> > >> are processed when the a source file is loaded into DrRacket (via > > >>> > >> the menu option File/Open), but are not processed if the source > > >>> > >> code is directly copied (e.g. from a browser window) into a > > >>> > >> DrRacket window and then executed with the 'Run' button. > > >>> > >> > > >>> > >> The metadata includes a #reader directive, e.g.: > > >>> > >> (#reader(lib "htdp-beginner-abbr-reader.ss" "lang")((modname > > >>> > >> snake-full) ...) > > >>> > >> > > >>> > >> This reader directive appears to be silently ignored by DrRacket > > >>> > >> when the source is 'Run', even though DrRacket shows "#reader" in > > >>> > >> red (as when an error is detected). The actions taken by DrRacket > > >>> > >> when 'Run' is pressed seem to depend on the settings in effect > > >>> > >> when the code is executed, which could be nothing, or throwing a > > >>> > >> confusing error. > > >>> > >> > > >>> > >> The solution for the original poster's issue is as John directs; > > >>> > >> remove the metadata (i.e. #reader directive) and manually set the > > >>> > >> language. > > >>> > >> > > >>> > >> However, I feel that DrRacket should recognize and act on (and > > >>> > >> perhaps also remove/hide from view) the metadata if the metadata > > >>> > >> occurs as from a copy/paste directly into a DrRacket window (e.g. > > >>> > >> as from a URL). The current behaviour is, I think, a bug and a > > >>> > >> trap (perhaps showstopping) for a new user experimenting with > > >>> > >> Racket. > > >>> > >> > > >>> > >> Note that the Racket executable seems to process the metadata > > >>> > >> properly, understanding the language to use, etc.. so that the > > >>> > >> code behaves as intended. > > >>> > >> > > >>> > >> On Wed, Jan 23, 2019 at 12:32 PM K H <kieron...@gmail.com <>> > > >>> > >> wrote: > > >>> > >> Hello Or, > > >>> > >> > > >>> > >> The language is not "Pretty Big". > > >>> > >> > > >>> > >> You should be using "Beginning Student with List Abbreviations". > > >>> > >> > > >>> > >> The DrRacket metadata lines referred to by John set the correct > > >>> > >> language. In your case you must have changed the language somehow. > > >>> > >> Or perhaps the file needs to be saved before the metadata is acted > > >>> > >> upon. > > >>> > >> > > >>> > >> HTH, > > >>> > >> > > >>> > >> Kieron. > > >>> > >> > > >>> > >> > > >>> > >> On Wed, Jan 23, 2019 at 12:17 PM 'John Clements' via Racket Users > > >>> > >> <racket...@googlegroups.com <>> wrote: > > >>> > >> Interesting problem; your screenshot shows header text that should > > >>> > >> not appear in the window, which suggests to me that you copied and > > >>> > >> pasted the text from somewhere else into a buffer where the > > >>> > >> language level was already set. It looks to me like you should do > > >>> > >> the following: > > >>> > >> > > >>> > >> 1) Delete the first three lines of the file. > > >>> > >> 2) Set the language level to “beginner with list abbreviations”. > > >>> > >> 3) Click “run” > > >>> > >> > > >>> > >> John Clements > > >>> > >> > > >>> > >> > On Jan 23, 2019, at 10:44 AM, orenpa11 <ore...@gmail.com <>> > > >>> > >> > wrote: > > >>> > >> > > > >>> > >> > Hi David, > > >>> > >> > Thanks for your swift response ,I simply do not know how to run > > >>> > >> > this program. > > >>> > >> > I thought that when I press the run button I should see the > > >>> > >> > snake GUI . > > >>> > >> > > > >>> > >> > Maybe the language is not pretty big ? > > >>> > >> > Thanks, > > >>> > >> > Or > > >>> > >> > > > >>> > >> > > > >>> > >> > On Wednesday, January 23, 2019 at 8:25:32 PM UTC+2, David K. > > >>> > >> > Storrs wrote: > > >>> > >> > What happens when you run it? Are you getting any error > > >>> > >> > messages? > > >>> > >> > > > >>> > >> > On Wed, Jan 23, 2019 at 1:01 PM orenpa11 <ore...@gmail.com <>> > > >>> > >> > wrote: > > >>> > >> > > > > >>> > >> > > Hi > > >>> > >> > > I am trying to implemet this code of "snake game " > > >>> > >> > > https://course.ccs.neu.edu/csu211/code/snake-full.ss > > >>> > >> > > <https://course.ccs.neu.edu/csu211/code/snake-full.ss> > > >>> > >> > > > > >>> > >> > > in DrRacket (Pretty big) > > >>> > >> > > But when I run it it is not working . > > >>> > >> > > any Idea ? > > >>> > >> > > > > >>> > >> > > Thanks > > >>> > >> > > Or > > >>> > >> > > > > >>> > >> > > -- > > >>> > >> > > You received this message because you are subscribed to the > > >>> > >> > > Google Groups "Racket Users" group. > > >>> > >> > > To unsubscribe from this group and stop receiving emails from > > >>> > >> > > it, send an email to racket-users...@googlegroups.com <>. > > >>> > >> > > For more options, visit https://groups.google.com/d/optout > > >>> > >> > > <https://groups.google.com/d/optout>. > > >>> > >> > > > >>> > >> > -- > > >>> > >> > You received this message because you are subscribed to the > > >>> > >> > Google Groups "Racket Users" group. > > >>> > >> > To unsubscribe from this group and stop receiving emails from > > >>> > >> > it, send an email to racket-users...@googlegroups.com <>. > > >>> > >> > For more options, visit https://groups.google.com/d/optout > > >>> > >> > <https://groups.google.com/d/optout>. > > >>> > >> > > >>> > >> > > >>> > >> > > >>> > >> -- > > >>> > >> You received this message because you are subscribed to the Google > > >>> > >> Groups "Racket Users" group. > > >>> > >> To unsubscribe from this group and stop receiving emails from it, > > >>> > >> send an email to racket-users...@googlegroups.com <>. > > >>> > >> For more options, visit https://groups.google.com/d/optout > > >>> > >> <https://groups.google.com/d/optout>. > > >>> > >> > > >>> > >> -- > > >>> > >> You received this message because you are subscribed to the Google > > >>> > >> Groups "Racket Users" group. > > >>> > >> To unsubscribe from this group and stop receiving emails from it, > > >>> > >> send an email to racket-users...@googlegroups.com <>. > > >>> > >> For more options, visit https://groups.google.com/d/optout > > >>> > >> <https://groups.google.com/d/optout>. > > >>> > >> <error_1.jpg> > > >>> > > > > >>> > > -- > > >>> > > You received this message because you are subscribed to the Google > > >>> > > Groups "Racket Users" group. > > >>> > > To unsubscribe from this group and stop receiving emails from it, > > >>> > > send an email to racket-users...@googlegroups.com <>. > > >>> > > For more options, visit https://groups.google.com/d/optout > > >>> > > <https://groups.google.com/d/optout>. > > >>> > > > >>> > > > >>> > -- > > >>> > You received this message because you are subscribed to the Google > > >>> > Groups "Racket Users" group. > > >>> > To unsubscribe from this group and stop receiving emails from it, > > >>> > send an email to racket-users...@googlegroups.com <>. > > >>> > For more options, visit https://groups.google.com/d/optout > > >>> > <https://groups.google.com/d/optout>. > > >>> > > >> > > >> -- > > >> You received this message because you are subscribed to the Google > > >> Groups "Racket Users" group. > > >> To unsubscribe from this group and stop receiving emails from it, send > > >> an email to racket-users...@googlegroups.com <>. > > >> For more options, visit https://groups.google.com/d/optout > > >> <https://groups.google.com/d/optout>. > > >> > > >> > > > -- > > > You received this message because you are subscribed to the Google Groups > > > "Racket Users" group. > > > To unsubscribe from this group and stop receiving emails from it, send an > > > email to racket-users...@googlegroups.com <>. > > > For more options, visit https://groups.google.com/d/optout > > > <https://groups.google.com/d/optout>. > > > > -- > > You received this message because you are subscribed to the Google Groups > > "Racket Users" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to racket-users...@googlegroups.com <javascript:>. > > For more options, visit https://groups.google.com/d/optout > > <https://groups.google.com/d/optout>. > > <question2.jpg> > > > -- > You received this message because you are subscribed to the Google Groups > "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com > <mailto:racket-users+unsubscr...@googlegroups.com>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. 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