Vector3D is totally it. I knew I'd seen it x@y@z somewhere, which was in OpenQWAQ now that I think about it.
Is there a canonical MC repository for this code, or should I grab an Cobalt image and start filing stuff out?
Eeep! I'm a step closer to Logo in Minecraft :D I did the simplest thing that would work, which is something like...
turtle penDown; turn: #west; go: 5; turn: #up; go: 1; turn: #east; go: 5
This is actually good enough to make procedurally generating relatively complex builds (e.g., a CPU) much less painful that even a map editor, but it doesn't feel like Logo at all. I haven't used Logo since childhood, but IIRC one would turn by degrees and these would be mapped onto pixel space. I *think* this is why I'm wanting a 3D Point, so I can map 3D points onto voxel space without reinventing the third dimension from scratch.
This was a fun problem to think about: I tried to get #left and #right as valid params to the turn method, but wait! What does #left mean when the turtle is currently traveling up? Which has me now thinking in terms of roll/yaw/pitch. It's weird to think about.
I'm having a blast though. Thanks for doing the bindings, Bert!
On Wed, Feb 27, 2013 at 1:51 AM, Bert Freudenberg bert@freudenbergs.dewrote:
On 27.02.2013, at 10:45, Bert Freudenberg bert@freudenbergs.de wrote:
On 27.02.2013, at 05:54, Casey Ransberger casey.obrien.r@gmail.com wrote:
Is there a stand alone package that provides Point>>@ in Squeak? E.g., x@y @z.
Balloon3D-Math from
http://www.squeaksource.com/*Balloon3D*/
- Bert -
Ah, but Ron is right, using the one from Croquet would be better.
- Bert -
Turtlegraphics made for 3d
http://map.squeak.org/accountbyid/114bcd19-24bd-46df-8025-dc63f037d6bd/files...
On Thu, Feb 28, 2013 at 2:04 AM, Casey Ransberger casey.obrien.r@gmail.comwrote:
Vector3D is totally it. I knew I'd seen it x@y@z somewhere, which was in OpenQWAQ now that I think about it.
Is there a canonical MC repository for this code, or should I grab an Cobalt image and start filing stuff out?
Eeep! I'm a step closer to Logo in Minecraft :D I did the simplest thing that would work, which is something like...
turtle penDown; turn: #west; go: 5; turn: #up; go: 1; turn: #east; go: 5
This is actually good enough to make procedurally generating relatively complex builds (e.g., a CPU) much less painful that even a map editor, but it doesn't feel like Logo at all. I haven't used Logo since childhood, but IIRC one would turn by degrees and these would be mapped onto pixel space. I *think* this is why I'm wanting a 3D Point, so I can map 3D points onto voxel space without reinventing the third dimension from scratch.
This was a fun problem to think about: I tried to get #left and #right as valid params to the turn method, but wait! What does #left mean when the turtle is currently traveling up? Which has me now thinking in terms of roll/yaw/pitch. It's weird to think about.
I'm having a blast though. Thanks for doing the bindings, Bert!
On Wed, Feb 27, 2013 at 1:51 AM, Bert Freudenberg bert@freudenbergs.dewrote:
On 27.02.2013, at 10:45, Bert Freudenberg bert@freudenbergs.de wrote:
On 27.02.2013, at 05:54, Casey Ransberger casey.obrien.r@gmail.com wrote:
Is there a stand alone package that provides Point>>@ in Squeak? E.g., x@y @z.
Balloon3D-Math from
http://www.squeaksource.com/*Balloon3D*/
- Bert -
Ah, but Ron is right, using the one from Croquet would be better.
- Bert -
-- Casey Ransberger
Hello,
On Thu, Feb 28, 2013 at 5:04 AM, Casey Ransberger casey.obrien.r@gmail.comwrote:
Vector3D is totally it. I knew I'd seen it x@y@z somewhere, which was in OpenQWAQ now that I think about it.
Is there a canonical MC repository for this code, or should I grab an Cobalt image and start filing stuff out?
As I know the latest 3DTransform package is avaliable at http://www.squeaksource.com/CroquetGL.html or under OpenCobalt repository http://croquet-src-01.oit.duke.edu:8886/Cobalt.html OpenQwaq also contains it (http://www.squeaksource.com/openqwaq.html)
Regards, Nikolay
Eeep! I'm a step closer to Logo in Minecraft :D I did the simplest thing
that would work, which is something like...
turtle penDown; turn: #west; go: 5; turn: #up; go: 1; turn: #east; go: 5
This is actually good enough to make procedurally generating relatively complex builds (e.g., a CPU) much less painful that even a map editor, but it doesn't feel like Logo at all. I haven't used Logo since childhood, but IIRC one would turn by degrees and these would be mapped onto pixel space. I *think* this is why I'm wanting a 3D Point, so I can map 3D points onto voxel space without reinventing the third dimension from scratch.
This was a fun problem to think about: I tried to get #left and #right as valid params to the turn method, but wait! What does #left mean when the turtle is currently traveling up? Which has me now thinking in terms of roll/yaw/pitch. It's weird to think about.
I'm having a blast though. Thanks for doing the bindings, Bert!
On Wed, Feb 27, 2013 at 1:51 AM, Bert Freudenberg bert@freudenbergs.dewrote:
On 27.02.2013, at 10:45, Bert Freudenberg bert@freudenbergs.de wrote:
On 27.02.2013, at 05:54, Casey Ransberger casey.obrien.r@gmail.com wrote:
Is there a stand alone package that provides Point>>@ in Squeak? E.g., x@y @z.
Balloon3D-Math from
http://www.squeaksource.com/*Balloon3D*/
- Bert -
Ah, but Ron is right, using the one from Croquet would be better.
- Bert -
-- Casey Ransberger
On 28 February 2013 01:04, Casey Ransberger casey.obrien.r@gmail.com wrote:
Vector3D is totally it. I knew I'd seen it x@y@z somewhere, which was in OpenQWAQ now that I think about it.
Is there a canonical MC repository for this code, or should I grab an Cobalt image and start filing stuff out?
Eeep! I'm a step closer to Logo in Minecraft :D I did the simplest thing that would work, which is something like...
turtle penDown; turn: #west; go: 5; turn: #up; go: 1; turn: #east; go: 5
This is actually good enough to make procedurally generating relatively complex builds (e.g., a CPU) much less painful that even a map editor, but it doesn't feel like Logo at all. I haven't used Logo since childhood, but IIRC one would turn by degrees and these would be mapped onto pixel space. I *think* this is why I'm wanting a 3D Point, so I can map 3D points onto voxel space without reinventing the third dimension from scratch.
This was a fun problem to think about: I tried to get #left and #right as valid params to the turn method, but wait! What does #left mean when the turtle is currently traveling up? Which has me now thinking in terms of roll/yaw/pitch. It's weird to think about.
Yep, that makes sense, given Logo's differential-geometry-ness. #left/#right are, of course, yaw: 'left a bit, up a bit, ok fly like that. down a bit, right a bit.' Have you heard of the TNB frame at all? The torsion/normal/binormal frame. Might help in getting yourself inside the turtle.
frank
I'm having a blast though. Thanks for doing the bindings, Bert!
On Wed, Feb 27, 2013 at 1:51 AM, Bert Freudenberg bert@freudenbergs.de wrote:
On 27.02.2013, at 10:45, Bert Freudenberg bert@freudenbergs.de wrote:
On 27.02.2013, at 05:54, Casey Ransberger casey.obrien.r@gmail.com wrote:
Is there a stand alone package that provides Point>>@ in Squeak? E.g., x@y@z.
Balloon3D-Math from
http://www.squeaksource.com/Balloon3D/
- Bert -
Ah, but Ron is right, using the one from Croquet would be better.
- Bert -
-- Casey Ransberger
On 2013-02-28, at 08:38, Frank Shearar frank.shearar@gmail.com wrote:
On 28 February 2013 01:04, Casey Ransberger casey.obrien.r@gmail.com wrote:
Vector3D is totally it. I knew I'd seen it x@y@z somewhere, which was in OpenQWAQ now that I think about it.
Is there a canonical MC repository for this code, or should I grab an Cobalt image and start filing stuff out?
Eeep! I'm a step closer to Logo in Minecraft :D I did the simplest thing that would work, which is something like...
turtle penDown; turn: #west; go: 5; turn: #up; go: 1; turn: #east; go: 5
This is actually good enough to make procedurally generating relatively complex builds (e.g., a CPU) much less painful that even a map editor, but it doesn't feel like Logo at all. I haven't used Logo since childhood, but IIRC one would turn by degrees and these would be mapped onto pixel space. I *think* this is why I'm wanting a 3D Point, so I can map 3D points onto voxel space without reinventing the third dimension from scratch.
This was a fun problem to think about: I tried to get #left and #right as valid params to the turn method, but wait! What does #left mean when the turtle is currently traveling up? Which has me now thinking in terms of roll/yaw/pitch. It's weird to think about.
Yep, that makes sense, given Logo's differential-geometry-ness. #left/#right are, of course, yaw: 'left a bit, up a bit, ok fly like that. down a bit, right a bit.' Have you heard of the TNB frame at all? The torsion/normal/binormal frame. Might help in getting yourself inside the turtle.
frank
Yep. The most important thing about turtle graphics is that almost all turtle commands are relative to the turtle's position and direction. So instead of turning "west" and "east" absolutely, you should turn "left" and "right", and if you do 4 "up + go" in a row would have made a (square) looping. "Left" and "right" make total sense if you imagine being a turtle :)
If it's just a "cursor" instead of a turtle, then using absolute directions would make sense. In that case "cursor goX: 5; goY: 5; goX: -5; goY: -5" would also draw an upright square. This might be more convenient in some cases, but you shouldn't call it "turtle".
- Bert -
Right. Like I said, it was the simplest thing that would work to be able to autobuild stuff using a Logo-like dialect. OTOH it can't really be exactly Logo, not exactly; Logo didn't have flying turtles!
On Thu, Feb 28, 2013 at 9:59 AM, Bert Freudenberg bert@freudenbergs.dewrote:
On 2013-02-28, at 08:38, Frank Shearar frank.shearar@gmail.com wrote:
On 28 February 2013 01:04, Casey Ransberger casey.obrien.r@gmail.com
wrote:
Vector3D is totally it. I knew I'd seen it x@y@z somewhere, which was
in
OpenQWAQ now that I think about it.
Is there a canonical MC repository for this code, or should I grab an
Cobalt
image and start filing stuff out?
Eeep! I'm a step closer to Logo in Minecraft :D I did the simplest thing that would work, which is something like...
turtle penDown; turn: #west; go: 5; turn: #up; go: 1; turn: #east; go: 5
This is actually good enough to make procedurally generating relatively complex builds (e.g., a CPU) much less painful that even a map editor,
but
it doesn't feel like Logo at all. I haven't used Logo since childhood,
but
IIRC one would turn by degrees and these would be mapped onto pixel
space. I
*think* this is why I'm wanting a 3D Point, so I can map 3D points onto voxel space without reinventing the third dimension from scratch.
This was a fun problem to think about: I tried to get #left and #right
as
valid params to the turn method, but wait! What does #left mean when the turtle is currently traveling up? Which has me now thinking in terms of roll/yaw/pitch. It's weird to think about.
Yep, that makes sense, given Logo's differential-geometry-ness. #left/#right are, of course, yaw: 'left a bit, up a bit, ok fly like that. down a bit, right a bit.' Have you heard of the TNB frame at all? The torsion/normal/binormal frame. Might help in getting yourself inside the turtle.
frank
Yep. The most important thing about turtle graphics is that almost all turtle commands are relative to the turtle's position and direction. So instead of turning "west" and "east" absolutely, you should turn "left" and "right", and if you do 4 "up + go" in a row would have made a (square) looping. "Left" and "right" make total sense if you imagine being a turtle :)
If it's just a "cursor" instead of a turtle, then using absolute directions would make sense. In that case "cursor goX: 5; goY: 5; goX: -5; goY: -5" would also draw an upright square. This might be more convenient in some cases, but you shouldn't call it "turtle".
- Bert -
squeak-dev@lists.squeakfoundation.org
-
Bert Freudenberg -
Casey Ransberger -
Frank Shearar -
karl ramberg -
Nikolay Suslov