Boids (flock simulator)
Hi all,
I downloaded "boids-1.1.1" from here:
https://puredata.info/downloads/boids
Now, opening "boids2d-help.pd", I get this error:
opened alsa MIDI client 129 in:1 out:1
boids2d 10
... couldn't create
boids2d 16 0
... couldn't create
What is missing?
[Pd version 0.52.1, Ubuntu 22.04]
Thank you,
a.
@atux You need to manually add number in [route] and connect them to duplicated [pd boid] subpatch in [gem_example]
A better way would be to use [clone] and create an abstration with [pd boids] content.
It works for me, but you certainly need to refresh the [number 15( message AFTER create the [pd boid] subpatches creation.
Also, here is a better version using [clone] object that has been part of puredata and makes the design more convienient.
(Note that boids Gem examples need [poltocar] object fom cyclone to work well)
@60hz said:
It works for me, but you certainly need to refresh the [number 15( message AFTER create the [pd boid] subpatches creation.
Also, here is a better version using [clone] object that has been part of puredata and makes the design more convienient.
(Note that boids Gem examples need [poltocar] object fom cyclone to work well)
Hi, your patch works fine, the boids move correctly, but when I increase their number for example from 15 to 115, also doing the "refresh after..." as you said, the boids increase but stay still, they don't move.
Now, when I open your patch, I get these errors:
--------------------------------------------------------------------
:: Cyclone 0.6-1; Released june 8th 2022
:: License: BSD-3-Clause (aka Revised BSD License)
:: Copyright © 2003-2021 - Krzysztof Czaja, Hans-Christoph Steiner,
:: Fred Jan Kraan, Alexandre Porres, Derek Kwan, Matt Barber
:: and others.
:: -----------------------------------------------------------------
:: Cyclone 0.6-1 needs at least Pd 0.52-0
(you have 0.52-1, you're good!)
:: Loading the cyclone library did the following:
:: - A) Loaded the non alphanumeric objects, which are:
:: [!-], [!-~], [!/], [!/~], [!=~], [%~], [+=~], [<=~], [<~],
:: [==~], [>=~] and [>~]
:: - B) Added /home/a/Pd/externals/cyclone
:: to Pd's path so the other objects can be loaded too
:: but use [declare -path cyclone] to guarantee search priority
:: in the patch
--------------------------------------------------------------------
opened alsa MIDI client 130 in:1 out:1
declare: Gem: unknown declaration
canvas.top
... couldn't create
canvas.top
... couldn't create
canvas.top
... couldn't create
canvas.top
... couldn't create
canvas.top
... couldn't create
canvas.top
... couldn't create
canvas.top
... couldn't create
canvas.top
... couldn't create
canvas.top
... couldn't create
canvas.top
... couldn't create
canvas.top
... couldn't create
canvas.top
... couldn't create
canvas.top
... couldn't create
canvas.top
... couldn't create
canvas.top
... couldn't create
boids2d 2005-2006 a.sier / jasch 1995-2003 eric l. singer Jan 1 2023 13:49:25
These are my startup paths:
** [poltocar]** object appears to be in place:
a@a:~$ cd /home/a/Pd/externals/cyclone
a@a:~/Pd/externals/cyclone$ ls
[CUT]
poltocar.d_fat
poltocar~.d_fat
poltocar-help.pd
poltocar~-help.pd
poltocar.l_amd64
poltocar~.l_amd64
poltocar.l_arm
poltocar~.l_arm
poltocar.l_i386
poltocar~.l_i386
poltocar.m_amd64
poltocar~.m_amd64
poltocar.m_i386
poltocar~.m_i386
[CUT]
Something is probably missing or i am doing something wrong.
Bye,
a.
@atux said:
canvas.top
... couldn't create
-> This is my fault, and it's not an important issue... I fixed it in zip.
If you need more boids number like 115, you also need to change [clone myboid 15] to [clone myboid 115]
@60hz said:
@atux said:
canvas.top
... couldn't create-> This is my fault, and it's not an important issue... I fixed it in zip.
If you need more boids number like 115, you also need to change [clone myboid 15] to [clone myboid 115]
Sure, I did that too. The boids increase in number, but do not move.
a.
@atux If you send the message [dump( into [boids 2d] what value is printed to the Pd console for the "number" parameter?
Sending [number 7( into [boids 2d 15] will make only 7 of them move. The others will be stationary.
So maybe sending in the message [number 115( will get them all moving..?
David.
@whale-av said:
@atux If you send the message [dump( into [boids 2d] what value is printed to the Pd console for the "number" parameter?
Sending [number 7( into [boids 2d 15] will make only 7 of them move. The others will be stationary.
So maybe sending in the message [number 115( will get them all moving..?
David.
Hi,
yes, sending the [dump( message into [boids 2d] object and printing the parameter values in the Pd console, I found that the parameter values completely change from those declared in the patch.
The speed changes from 3 to 0.1, so obviously nothing moves.
The maxspeed and inertia also become very small (about 0.2).
However I have added some sliders to control the values directly and more comfortably in realtime, something like this:
...and everything works fine. The behavior is what you wrote in your post.
Thank you,
a.
EDIT
Now I'm trying to figure out how to get the (x,y) coordinates of each boid during motion, in two distinct number boxes for each boid, with a certain time step (as small as possible).
I think I succeeded by doing something like this:
This is the start of the output stream in the pd console:
B0_x: 1.11714
B0_y: -0.154289
B1_x: 0.859991
B1_y: -1.04122
B2_x: 0.988587
B2_y: -0.620997
B3_x: 1.11418
B3_y: -0.829169
B4_x: 0.756241
B4_y: -0.51217
B0_x: 1.12641
B0_y: -0.110254
B1_x: 0.87085
B1_y: -1.0069
B2_x: 0.99647
B2_y: -0.576692
B3_x: 1.14712
B3_y: -0.798511
B4_x: 0.772748
B4_y: -0.480177
B0_x: 1.13585
B0_y: -0.0662551
B1_x: 0.881453
B1_y: -0.972498
B2_x: 1.01429
B2_y: -0.545412
B3_x: 1.17485
B3_y: -0.763067
B4_x: 0.780488
B4_y: -0.445019
B0_x: 1.14541
B0_y: -0.0222838
B1_x: 0.891889
B1_y: -0.938044
B2_x: 1.03125
B2_y: -0.51366
B3_x: 1.19768
B3_y: -0.724288
B4_x: 0.793631
B4_y: -0.411504
B0_x: 1.15512
B0_y: 0.0216567
B1_x: 0.902249
B1_y: -0.903567
B2_x: 1.04731
B2_y: -0.481438
B3_x: 1.21641
B3_y: -0.683373
B4_x: 0.808751
B4_y: -0.378833
B0_x: 1.16492
B0_y: 0.0655764
B1_x: 0.912567
B1_y: -0.869077
B2_x: 1.06238
B2_y: -0.448745
B3_x: 1.23193
B3_y: -0.641134
B4_x: 0.825433
B4_y: -0.346931
B0_x: 1.17478
B0_y: 0.109484
B1_x: 0.922866
B1_y: -0.834582
B2_x: 1.07642
B2_y: -0.415597
B3_x: 1.24506
B3_y: -0.598092
B4_x: 0.843365
B4_y: -0.315715
B0_x: 1.18466
B0_y: 0.153385
B1_x: 0.933166
B1_y: -0.800087
B2_x: 1.08182
B2_y: -0.370922
B3_x: 1.26792
B3_y: -0.559326
B4_x: 0.862311
B4_y: -0.285104
B0_x: 1.19456
B0_y: 0.197283
B1_x: 0.943492
B1_y: -0.7656
B2_x: 1.0977
B2_y: -0.338616
B3_x: 1.28719
B3_y: -0.518661
B4_x: 0.872322
B4_y: -0.250524
B0_x: 1.20446
B0_y: 0.241179
B1_x: 0.953858
B1_y: -0.731124
B2_x: 1.12197
B2_y: -0.312019
B3_x: 1.30357
B3_y: -0.47675
B4_x: 0.874392
B4_y: -0.214584
B0_x: 1.21436
B0_y: 0.285078
B1_x: 0.964273
B1_y: -0.696664
B2_x: 1.13781
B2_y: -0.269901
B3_x: 1.32971
B3_y: -0.440118
B4_x: 0.881343
B4_y: -0.179261
B0_x: 1.22636
B0_y: 0.328448
B1_x: 0.974756
B1_y: -0.662224
B2_x: 1.15208
B2_y: -0.227224
B3_x: 1.35207
B3_y: -0.401068
B4_x: 0.893584
B4_y: -0.145406
B0_x: 1.24059
B0_y: 0.37114
B1_x: 0.985347
B1_y: -0.627817
B2_x: 1.16511
B2_y: -0.184151
B3_x: 1.371
B3_y: -0.360243
B4_x: 0.90793
B4_y: -0.112388
B0_x: 1.25707
B0_y: 0.413011
B1_x: 0.996047
B1_y: -0.593444
B2_x: 1.17717
B2_y: -0.140797
B3_x: 1.38672
B3_y: -0.318079
B4_x: 0.923963
B4_y: -0.0801551
B0_x: 1.27583
B0_y: 0.453915
B1_x: 1.00686
B1_y: -0.559105
B2_x: 1.18852
B2_y: -0.0972526
B3_x: 1.39945
B3_y: -0.274918
B4_x: 0.941362
B4_y: -0.048639
B0_x: 1.29685
B0_y: 0.493706
B1_x: 1.01778
B1_y: -0.524801
B2_x: 1.19942
B2_y: -0.0535927
B3_x: 1.40947
B3_y: -0.231048
B4_x: 0.959882
B4_y: -0.0177685
B0_x: 1.32009
B0_y: 0.53224
B1_x: 1.02881
B1_y: -0.490533
B2_x: 1.218
B2_y: -0.0227568
B3_x: 1.41711
B3_y: -0.186701
B4_x: 0.969484
B4_y: 0.0169276
B0_x: 1.3455
B0_y: 0.56938
B1_x: 1.03996
B1_y: -0.456305
B2_x: 1.23509
B2_y: 0.00892889
B3_x: 1.42272
B3_y: -0.142052
B4_x: 0.981754
B4_y: 0.050772
B0_x: 1.37301
B0_y: 0.604992
B1_x: 1.05125
B1_y: -0.42212
B2_x: 1.242
B2_y: 0.0533949
B3_x: 1.43903
B3_y: -0.100109
B4_x: 0.996152
B4_y: 0.0837672
B0_x: 1.40251
B0_y: 0.638968
B1_x: 1.06267
B1_y: -0.387978
B2_x: 1.24934
B2_y: 0.097793
B3_x: 1.46458
B3_y: -0.0630706
B4_x: 1.00166
B4_y: 0.119344
B0_x: 1.43392
B0_y: 0.671193
B1_x: 1.07422
B1_y: -0.353884
B2_x: 1.2658
B2_y: 0.12981
B3_x: 1.48536
B3_y: -0.0231537
B4_x: 0.999281
B4_y: 0.155266
B0_x: 1.46712
B0_y: 0.701569
B1_x: 1.08593
B1_y: -0.319839
B2_x: 1.28128
B2_y: 0.162308
B3_x: 1.50148
B3_y: 0.0188584
B4_x: 1.00283
B4_y: 0.200125
B0_x: 1.50197
B0_y: 0.730036
B1_x: 1.09778
B1_y: -0.285848
B2_x: 1.29582
B2_y: 0.195243
B3_x: 1.51337
B3_y: 0.0622596
B4_x: 1.00982
B4_y: 0.23544
B0_x: 1.53833
B0_y: 0.756552
B1_x: 1.1098
B1_y: -0.251912
B2_x: 1.30943
B2_y: 0.228571
B3_x: 1.52159
B3_y: 0.106503
B4_x: 1.02009
B4_y: 0.269945
B0_x: 1.57606
B0_y: 0.781086
B1_x: 1.12197
B1_y: -0.218032
B2_x: 1.31182
B2_y: 0.273508
B3_x: 1.5398
B3_y: 0.147654
B4_x: 1.03295
B4_y: 0.30357
B0_x: 1.61501
B0_y: 0.803617
B1_x: 1.13429
B1_y: -0.184207
B2_x: 1.31677
B2_y: 0.318234
B3_x: 1.55335
B3_y: 0.190565
B4_x: 1.04787
B4_y: 0.336332
B0_x: 1.65505
B0_y: 0.824147
B1_x: 1.14678
B1_y: -0.150443
B2_x: 1.32516
B2_y: 0.362446
B3_x: 1.56279
B3_y: 0.234564
B4_x: 1.06447
B4_y: 0.368278
B0_x: 1.69606
B0_y: 0.842677
B1_x: 1.15945
B1_y: -0.116746
B2_x: 1.33747
B2_y: 0.405729
B3_x: 1.56875
B3_y: 0.279167
B4_x: 1.08245
B4_y: 0.399466
B0_x: 1.73792
B0_y: 0.859207
B1_x: 1.17233
B1_y: -0.083128
B2_x: 1.3539
B2_y: 0.447624
B3_x: 1.57254
B3_y: 0.324008
B4_x: 1.1016
B4_y: 0.429949
B0_x: 1.78051
B0_y: 0.873732
B1_x: 1.18545
B1_y: -0.0496025
B2_x: 1.37442
B2_y: 0.48767
B3_x: 1.57423
B3_y: 0.368976
B4_x: 1.12177
B4_y: 0.459767
B0_x: 1.82373
B0_y: 0.886251
B1_x: 1.19883
B1_y: -0.0161833
B2_x: 1.38296
B2_y: 0.531852
B3_x: 1.58941
B3_y: 0.411338
B4_x: 1.14284
B4_y: 0.488957
B0_x: 1.86747
B0_y: 0.89682
B1_x: 1.21257
B1_y: 0.0170938
B2_x: 1.39435
B2_y: 0.575387
B3_x: 1.6178
B3_y: 0.446258
B4_x: 1.15646
B4_y: 0.522282
B0_x: 1.91164
B0_y: 0.905448
B1_x: 1.22669
B1_y: 0.0502072
B2_x: 1.41523
B2_y: 0.604713
B3_x: 1.64484
B3_y: 0.482221
B4_x: 1.16306
B4_y: 0.557672
B0_x: 1.95613
B0_y: 0.912153
B1_x: 1.24123
B1_y: 0.0831422
B2_x: 1.4393
B2_y: 0.631487
B3_x: 1.6705
B3_y: 0.519194
B4_x: 1.17515
B4_y: 0.59158
B0_x: 2.00088
B0_y: 0.916938
B1_x: 1.25624
B1_y: 0.115862
B2_x: 1.46629
B2_y: 0.655312
B3_x: 1.69479
B3_y: 0.55707
B4_x: 1.1923
B4_y: 0.623232
B0_x: 2.04571
B0_y: 0.920851
B1_x: 1.27179
B1_y: 0.148331
B2_x: 1.4912
B2_y: 0.692785
B3_x: 1.72975
B3_y: 0.585403
B4_x: 1.2139
B4_y: 0.652031
B0_x: 2.09061
B0_y: 0.923773
B1_x: 1.28791
B1_y: 0.180521
B2_x: 1.52035
B2_y: 0.727065
B3_x: 1.76413
B3_y: 0.614443
B4_x: 1.23925
B4_y: 0.677589
Note that when you change [boids2d 15] to [boids2d 115], it will reset the object to default state so you need to send all messages data again, so you can simply use the bang in [pd init].
Oops! Looks like something went wrong!