April 2014 - Pharo-users - lists.pharo.org

Re: [Pharo-users] lasergame question

by Roelof Wobben

April 1, 2014

Re: [Pharo-users] lasergame question

by Camille Teruel

On 1 avr. 2014, at 16:21, Roelof Wobben <r.wobben(a)home.nl> wrote: > Camille Teruel schreef op 1-4-2014 15:08: >> On 1 avr. 2014, at 14:52, Roelof Wobben <r.wobben(a)home.nl> wrote: >> >>> Hello, >> Hello, >> >>> Im on this page now: http://squeak.preeminent.org/tut2007/html/017.html >>> >>> I do not understand one thing. >>> >>> Where do I put the initialize "script" >> #initialize is not a script, it's a method. When an object is instantiated (for ex with: MyObject new) #initialize is automatically sent to it. >> This is the place to put your newly created object in a correct initial state. >> In your class, you just define a protocol named for example "initialization" where you put all the initialization-related methods. >> Note that protocols have no meaning, i.e. they don't change how your objects behave, they're just here to help you classify >> the methods of a class by concerns. >> So the tutorial tell you to create two methods: #initialize that is automatically called after an object has been instantiated and #initializeActiveSegments where you >> put some other initialization logic, that's all. >> >>> When I put it on the initializeActiveSegments then initialize get not found. >> Sorry, I don't understand. >> >>> Or must I make a seperate protocol named ActiveSegments for it. >> No use the same protocol "initialization" or "initialize-release" or whatever. >> > > Oke, > > I changed it so I have this : > > Laser-Game-Model > with as classes: > - BlankCell > - Grid > - MirrorCell > -TargetCell > > > BlankCell has the following protocols: > - initializing-release > - testing > > Initializing - release contains the following methods: > - initialize > - initializeActiveSegments > > testing contains the following methods: > isOn > isOff > > but when I run the test-runner I see this : MessageNotUnderstood : BlankCell >> activeSegments. This error means "instances of BlankCell does not understand the message #activeSegments" that's all, this part of your program is not implemented yet. > > Roelof

April 1, 2014

Re: [Pharo-users] lasergame question

by Roelof Wobben

Camille Teruel schreef op 1-4-2014 15:08: > On 1 avr. 2014, at 14:52, Roelof Wobben <r.wobben(a)home.nl> wrote: > >> Hello, > Hello, > >> Im on this page now: http://squeak.preeminent.org/tut2007/html/017.html >> >> I do not understand one thing. >> >> Where do I put the initialize "script" > #initialize is not a script, it's a method. When an object is instantiated (for ex with: MyObject new) #initialize is automatically sent to it. > This is the place to put your newly created object in a correct initial state. > In your class, you just define a protocol named for example "initialization" where you put all the initialization-related methods. > Note that protocols have no meaning, i.e. they don't change how your objects behave, they're just here to help you classify > the methods of a class by concerns. > So the tutorial tell you to create two methods: #initialize that is automatically called after an object has been instantiated and #initializeActiveSegments where you > put some other initialization logic, that's all. > >> When I put it on the initializeActiveSegments then initialize get not found. > Sorry, I don't understand. > >> Or must I make a seperate protocol named ActiveSegments for it. > No use the same protocol "initialization" or "initialize-release" or whatever. > Oke, I changed it so I have this : Laser-Game-Model with as classes: - BlankCell - Grid - MirrorCell -TargetCell BlankCell has the following protocols: - initializing-release - testing Initializing - release contains the following methods: - initialize - initializeActiveSegments testing contains the following methods: isOn isOff but when I run the test-runner I see this : MessageNotUnderstood : BlankCell >> activeSegments. Roelof

April 1, 2014

Re: [Pharo-users] lasergame question

by Camille Teruel

On 1 avr. 2014, at 14:52, Roelof Wobben <r.wobben(a)home.nl> wrote: > Hello, Hello, > Im on this page now: http://squeak.preeminent.org/tut2007/html/017.html > > I do not understand one thing. > > Where do I put the initialize "script" #initialize is not a script, it's a method. When an object is instantiated (for ex with: MyObject new) #initialize is automatically sent to it. This is the place to put your newly created object in a correct initial state. In your class, you just define a protocol named for example "initialization" where you put all the initialization-related methods. Note that protocols have no meaning, i.e. they don't change how your objects behave, they're just here to help you classify the methods of a class by concerns. So the tutorial tell you to create two methods: #initialize that is automatically called after an object has been instantiated and #initializeActiveSegments where you put some other initialization logic, that's all. > When I put it on the initializeActiveSegments then initialize get not found. Sorry, I don't understand. > Or must I make a seperate protocol named ActiveSegments for it. No use the same protocol "initialization" or "initialize-release" or whatever. > If I made a initialize on the initiialize protocol. ActiveSegments stays nill. > > Roelof > >

April 1, 2014

Re: [Pharo-users] lasergame question

by Nicolai Hess

Hi Roelof 2014-04-01 14:52 GMT+02:00 Roelof Wobben <r.wobben(a)home.nl>: > Hello, > > Im on this page now: http://squeak.preeminent.org/tut2007/html/017.html > > I do not understand one thing. > > Where do I put the initialize "script" > What do you mean with "script", the method? > > When I put it on the initializeActiveSegments then initialize get not > found. > > Or must I make a seperate protocol named ActiveSegments for it. > The protocols are only used for grouping/organizing methods, it does not make a difference on how the methods are found or executed. In that tutorial, both methods are in the protocol initialize-release. > If I made a initialize on the initiialize protocol. ActiveSegments stays > nill. > > Roelof > > > the initialize method is called "automatically" for every Object/Cell when it is created with "new" "Cell new" -> creates a new Cell and calls initialize.

April 1, 2014

lasergame question

by Roelof Wobben

Hello, Im on this page now: http://squeak.preeminent.org/tut2007/html/017.html I do not understand one thing. Where do I put the initialize "script" When I put it on the initializeActiveSegments then initialize get not found. Or must I make a seperate protocol named ActiveSegments for it. If I made a initialize on the initiialize protocol. ActiveSegments stays nill. Roelof

April 1, 2014

Re: [Pharo-users] Tiny-social meeting in Buenos Aires

by Pharo4Stef

cool idea. stef On 31 Mar 2014, at 16:16, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > Hi, > > As some of you know, Iâm on vacations in Buenos Aires. Last days I was talking with the other Esteban of this list and with Hernan about doing a Pharo meeting to talk about the upcoming Pharo3 and wellâ¦ to socialise a bit :) > It cannot be a true sprint or formal event because my times are complicated (also Iâm on holidays!) but is good to meet anyway and exchange impressions and news. > Anyway, it will be friday 18hs to 20:30hs, in this place: http://www.cervelar.com.ar > (in the Belgrano location). > > If you are in Buenos Aires and want to come, please send a confirmation (we need to make a reservation). > > Cheers, > Esteban > >

April 1, 2014

Re: [Pharo-users] Pharo 1

by Roelof Wobben

Pharo4Stef schreef op 1-4-2014 8:22: > On which os are you? > The new image on mac should be under the ressources folder and the script just opens the default one. > > > Im on Windows 7 at the moment. Roelof

April 1, 2014

Re: [Pharo-users] Pharo 1

by Pharo4Stef

On which os are you? The new image on mac should be under the ressources folder and the script just opens the default one. > > Im busy with book 1 and I work with version 1 > Now this morning I did some changes and save it under a name. > > But when I just start up Pharo I see the pharo1.img again without my changes. > And I also do not see a menu where I can choose which image I want to use as version 2 of Pharo does. > > How can I proceed where I quit with the right image. > > Roelof > >

April 1, 2014

Re: [Pharo-users] challenges

by Pharo4Stef

Why dont you start to take some of the 99 python problems and build a 99 Pharo problems it would be really fun and useful. I would love to have a little list of kata and exercises. Stef On 31 Mar 2014, at 17:38, Roelof Wobben <r.wobben(a)home.nl> wrote: > Hello, > > I almost get book 1 ready. > > Now I wonder if there are challenges so I can practise more in Smaltalk. > I know I learn the best by doing things and not just read about it. > > I like the most if the challenges can start at simple and get more complex . > > As example what I mean is 99 prolog/python problems > > Roelof > >

April 1, 2014