On Sat, Jul 25, 2009 at 4:51 AM, Karl Ramberg <karlramberg at gmail.com> wrote:

>  On 2009-07-24 00:41, John McKeon wrote:
>
>
>
> On Thu, Jul 23, 2009 at 6:26 PM, John McKeon <p3anoman at gmail.com> wrote:
>
>>
>>
>>  On Thu, Jul 23, 2009 at 12:11 PM, Eliot Miranda <eliot.miranda at gmail.com
>> > wrote:
>>
>>> Hi Gary,
>>>
>>>  On Thu, Jul 23, 2009 at 3:28 AM, Gary Dunn <osp at aloha.com> wrote:
>>>
>>>> On Thu, 2009-07-23 at 00:19 -0400, John McKeon wrote:
>>>> >
>>>> >
>>>> > On Tue, Jul 21, 2009 at 12:57 PM, Gary Dunn <osp at aloha.com> wrote:
>>>> >         I was reading about SqueakMap and came across the Swiki page
>>>> >         for Alice
>>>> >
>>>> >         http://wiki.squeak.org/squeak/1861
>>>> >
>>>> >         Is anyone actively using Alice in Squeak?
>>>> >
>>>> >            - The page was last edited in 2004
>>>> >
>>>> >            - The first link is dead
>>>> >
>>>> >            - The second link goes to the new, improved Sun sponsored
>>>> >         all Java
>>>> >         version of Alice, which appears to be healthy
>>>> >
>>>> >            - The third link downloads a Ph.D. dissertation from 1997
>>>> >
>>>> >            - After the outdated info is a rant on the shortcomings of
>>>> >         OpenGL.
>>>> >         It just starts up, mid stream, "There is a serious design flaw
>>>> >         in the
>>>> >         lighting or rather the shading." This should be removed.
>>>> >
>>>> >            - A search on the Swiki for Alice includes a page on Falice
>>>> >         which
>>>> >         links to www.falice.com which is a parked domain.
>>>> >
>>>> >         Last but not least, when I try to load "FullImageProjectAlice"
>>>> >         I get
>>>> >         errors. Very likely I am doing something wrong.
>>>> >
>>>> >         Is this worth pursuing, or has Alice in Squeakland wandered
>>>> >         off?
>>>> >
>>>> > Aloha Gary,
>>>> > I remember the first time I saw Squeak, A;ice was pre-loaded in the
>>>> > image, so I did some digging.
>>>> > If  you are really interested go to ftp.squeak.org and download a a
>>>> > 2.x version of Squeak.
>>>> > The 2.8 distribution has it installed. Be warned, the older Squeak
>>>> > interface might disappoint you ;)
>>>> >
>>>> > Regards
>>>> > John McKeon
>>>>
>>>> Thanks, John. I downloaded the 2.8 image and changes files, and the V2
>>>> sources, and launched squeak with those. It opens fine, if old looking,
>>>> and Alice is in there. I did a Wonderland new. and ran into an error:
>>>>
>>>> mustBeBoolean
>>>>        "Catches attempts to test truth of non-Booleans.  This message is
>>>> sent
>>>> from the
>>>>        interpreter."
>>>>
>>>>        self error: 'NonBoolean receiver--proceed for truth.'.
>>>>        ^true
>>>>
>>>> The offending code is
>>>>
>>>> areasRemainingToFill: aRectangle
>>>>        ^myCamera drawSceneBackground
>>>>                ifTrue:[aRectangle areasOutside: self bounds]
>>>>                ifFalse:[Array with: aRectangle]
>>>>
>>>> where "bounds" in the ifTrue branch is highlighted.
>>>
>>>
>>>   This looks as if myCamera drawSceneBackground is not returning a
>>> boolean.  Certain messages, in particular ifTrue: ifFalse: ifTrue:ifFalse:
>>> whileTrue: and whileFalse: are inlined by the compiler into conditional
>>> branch instructions which operate on the object on top of stack.  The
>>> conditional branches expect either true or false, the sole instances of True
>>> and False respectively.  When they encounter something other than true or
>>> false the VM sends mustBeBoolean to that
>>> object.  So look in the debugger at the object that has received mustBeBoolean.  This was the result that myCamera
>>> drawSceneBackground returned, whereas areasRemainingToFill: expected a
>>> boolean.
>>>
>>>  HTH
>>> Eliot
>>>
>>
> Those errors disappear with the latest code in a 3.10 image.
>
>
>>
>>>>
>>>> A little more digging reveals that senders of bounds have something to
>>>> do with AlignmentMorph, which is old stuff -- is the problem that ny VM
>>>> is too "new.?"
>>>>
>>>> Any suggestions as to how to proceed? Is there a way to cast "bounds" to
>>>> the Boolean requirement? Sorry, that's my C showing.
>>>
>>>
>> I believe that is what makes Smalltalk a *strongly* typed language. No
>> typecasting.
>>
>> Loading the latest Baloon3D code from Squeaksource yields somewhat better
>> results but there is a bit of post load actions that appear to be required.
>>
>
> Sorry, prematurely sent.
>
> I evaluated all of the following the first two of which are definitely
> needed but I am not sure of the other two.
>      WonderlandConstants initialize.
>      WonderlandConstants recompileUsers.
>      B3DHardwareEngine initialize.
>      B3DAcceleratorPlugin new initialiseModule.
>
> I am able to get Wonderland new to run. But a warning message tells me that
> B3DPrimitiveEngine is not enabled (and I cannot as yet figure out how to
> enable it). Once Alice is running no graphics are rendered, just a blue
> screen(!) :)
>
> Do you have the Squeak3D plugin in the SqueakVM directory ?
> http://squeakvm.org/win32/release/Squeak3D.zip
>

I do now
thank you Karl!
John


>
> Karl
>
>
> Then mousing over Wonderland throws errors in WonderlandCamera>>pickAt:
> aPoint when it calls
>    B3DRenderEngine defaultForPlatformOn: nil
> where nil should be(?) a Form object. BitBlt eventually tries to access the
> boundingBox of this undefined object.in BitBlt>>setDestForm: aForm causing
> an MNU
>
> Thats as far as I have gotten for now,
> John
>
>
>
>
>>
>>
>>
>>>
>>>>
>>>> --
>>>> Gary Dunn, Honolulu
>>>> osp at aloha.com
>>>> http://openslate.net/
>>>> http://e9erust.blogspot.com/
>>>> Sent from Slate001
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>
>>
>> --
>> http://jmck.seasidehosting.st
>>
>
>
>
> --
> http://jmck.seasidehosting.st
>
> ------------------------------
>
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>


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