Phun - 2D physics sandbox - forum

Official Forum

You are not logged in.

#1 2009-08-23 16:01:13

lowlol
Post Addict
From: U.S.
Registered: 2008-10-16
Posts: 601

Engine contest

The contest forum is a bit slow so I decided to make a contest.

Goal: Make an engine that can travel 1000 meters.

Rules:

Engine must fit inside one of the two red boxes.

The engine must be either a ball spawn engine, a water spawn engine, or a high bounciness engine.

The scene cannot be altered.

The car can be either one wheel drive or two wheel drive.

Any gearing/linkages must be inside the car.

You may change the collision of the car.

You may not abuse loop holes.

Grading:
I will grade the scene by deleting the hinge on the circle above the black box before I start the scene, the engine will have 4.8 seconds to "rev" up, after that the car will be dropped. When the car is almost to the finish line I will slow down the simulation and get an accurate time of when it crossed. The car with the fastest time will win.

It's a pretty simple contest but it should be fun, have fun making your engines.

Contest scene:
http://www.phunland.com/phunbox/upload/image/th/29759_Engine_Contest.png
Author: lowlol
Title: Engine contest
File Size: 26.9 kB
Rating: http://www.phunland.com/phunbox/rating/29759
http://www.phunland.com/phunbox/theme/img/download_bar_red_part.pnghttp://www.phunland.com/phunbox/theme/img/download_bar_blue_part.png


Contestants:
Bronie12345 - 52.75 seconds
Torpedo - 84.91

Last edited by lowlol (2009-08-28 21:47:49)


                   Join the Phunlet collab

http://www.speedtest.net/result/525451425.png
Chat with us at Phun's Chatroom! http://xat.com/Algodoo_Phun

Offline

 

#2 2009-08-23 16:10:04

Kilinich
Phuntastic!
From: Russia
Registered: 2009-02-26
Posts: 692

Re: Engine contest

Why car is out-of scale?


BR, phunners!
-over-

Offline

 

#3 2009-08-23 16:13:07

lowlol
Post Addict
From: U.S.
Registered: 2008-10-16
Posts: 601

Re: Engine contest

The car is out of scale to make the contest easier, since bigger engines tend to be more robust.


                   Join the Phunlet collab

http://www.speedtest.net/result/525451425.png
Chat with us at Phun's Chatroom! http://xat.com/Algodoo_Phun

Offline

 

#4 2009-08-23 16:29:48

Kilinich
Phuntastic!
From: Russia
Registered: 2009-02-26
Posts: 692

Re: Engine contest

lowlol wrote:

The car is out of scale to make the contest easier, since bigger engines tend to be more robust.

Lame.

Last edited by Kilinich (2009-08-24 00:24:51)


BR, phunners!
-over-

Offline

 

#5 2009-08-23 17:08:46

gmonkeyboy
Very Active Poster
From: Pieville, NC
Registered: 2008-07-03
Posts: 375

Re: Engine contest

can i make the scene smaller?


http://i413.photobucket.com/albums/pp213/gmonkeyboy/sigmaster.gifhttp://internetometer.com/image/4097.png
http://i413.photobucket.com/albums/pp213/gmonkeyboy/sigb.gif

Offline

 

#6 2009-08-23 17:13:11

lowlol
Post Addict
From: U.S.
Registered: 2008-10-16
Posts: 601

Re: Engine contest

No.


                   Join the Phunlet collab

http://www.speedtest.net/result/525451425.png
Chat with us at Phun's Chatroom! http://xat.com/Algodoo_Phun

Offline

 

#7 2009-08-24 01:30:46

Bronie12345
wolverina
From: The Forest
Registered: 2008-06-20
Posts: 1355
Website

Re: Engine contest

simple
here's my entry:
http://www.phunland.com/phunbox/upload/image/th/29780_Engine_Contest_-_entry.png
Author: Bronie12345
Title: Engine Contest - entry
File Size: 41.95 kB
Rating: http://www.phunland.com/phunbox/rating/29780
http://www.phunland.com/phunbox/theme/img/download_bar_red_part.pnghttp://www.phunland.com/phunbox/theme/img/download_bar_blue_part.png


http://i484.photobucket.com/albums/rr204/Bronie12345/blueside333x250.jpg     need off-road tires for your phun car? pm me
http://i540.photobucket.com/albums/gg327/ioncann0ns/ubd9085-1.png                need a powerful engine for your phun car? pm me

Offline

 

#8 2009-08-24 01:42:23

Kilinich
Phuntastic!
From: Russia
Registered: 2009-02-26
Posts: 692

Re: Engine contest

Bronie12345 wrote:

simple
here's my entry:

"The engine must be either a ball spawn engine, a water spawn engine, or a high bounciness engine."
???


BR, phunners!
-over-

Offline

 

#9 2009-08-24 01:49:48

Bronie12345
wolverina
From: The Forest
Registered: 2008-06-20
Posts: 1355
Website

Re: Engine contest

i know, but i don't like water engines, and BS and HB engines are too slow


http://i484.photobucket.com/albums/rr204/Bronie12345/blueside333x250.jpg     need off-road tires for your phun car? pm me
http://i540.photobucket.com/albums/gg327/ioncann0ns/ubd9085-1.png                need a powerful engine for your phun car? pm me

Offline

 

#10 2009-08-24 02:25:12

lowlol
Post Addict
From: U.S.
Registered: 2008-10-16
Posts: 601

Re: Engine contest

Bronie12345 wrote:

i know, but i don't like water engines, and BS and HB engines are too slow

Then you just wasted your time because I'm not going to count that scene.


                   Join the Phunlet collab

http://www.speedtest.net/result/525451425.png
Chat with us at Phun's Chatroom! http://xat.com/Algodoo_Phun

Offline

 

#11 2009-08-24 02:26:21

Bronie12345
wolverina
From: The Forest
Registered: 2008-06-20
Posts: 1355
Website

Re: Engine contest

tongue
well, if u call 5 mins time tongue




here's my next entry:
http://www.phunland.com/phunbox/upload/image/th/29790_car_with_rotary_BSE.png
Author: Bronie12345
Title: engine contest - entry (for real this time)
File Size: 42.41 kB
Rating: http://www.phunland.com/phunbox/rating/29790
http://www.phunland.com/phunbox/theme/img/download_bar_red_part.pnghttp://www.phunland.com/phunbox/theme/img/download_bar_blue_part.png

Last edited by Bronie12345 (2009-08-24 07:30:04)


http://i484.photobucket.com/albums/rr204/Bronie12345/blueside333x250.jpg     need off-road tires for your phun car? pm me
http://i540.photobucket.com/albums/gg327/ioncann0ns/ubd9085-1.png                need a powerful engine for your phun car? pm me

Offline

 

#12 2009-08-27 21:02:17

Torpedo
Respected Member
Registered: 2009-04-07
Posts: 103

Re: Engine contest

Heres my entry, running on my powerful torpedo HE engine delimited.

You can remove the exhaust if you like, its only there for decorative reasons, and has no effect on performance.

Hold left to get the engine turning the correct way, give it a few seconds to rev up, then tap C once to get the clutch to engage. it is a little slow to catch, but it gives the engine more time to spin up before it engages anyway.

The engine is more at home in a 1910 car in fairness than this one but meh!

http://www.phunland.com/phunbox/upload/image/th/30011_Engine_Contest2.png
Author: Torpedo
Title: Car engine contest entry Ballspawn type
File Size: 77.39 kB
Rating: http://www.phunland.com/phunbox/rating/30011
http://www.phunland.com/phunbox/theme/img/download_bar_red_part.pnghttp://www.phunland.com/phunbox/theme/img/download_bar_blue_part.png

Enjoy! If it seems to be stuck going slow, you've engaged the clutch too soon and the engine isn't making enough power at too lower revs to pull away, it'll go much faster if you give it a moment to rev up.

Last edited by Torpedo (2009-08-27 21:06:06)


http://i11.photobucket.com/albums/a180/manmuppet/PHUNLANDSIG.jpg

Offline

 

#13 2009-08-28 13:12:33

gasbomb
Member
From: Where Phun is PHREE!!!!!
Registered: 2009-04-29
Posts: 43

Re: Engine contest

can't use a spring engine?


PHREE PHUN PHOREVER!!!!!!!!!!!!!!!!!!!!!!!!!!!  <-post this in your signature for phree phun
http://www.mubos-md.com/licensemaker/xu2ev2hy.png
http://www.mubos-md.com/brawlcards/cards/8q0380n7.png

Offline

 

#14 2009-08-28 14:00:56

xplane80
Post Addict
Registered: 2008-09-01
Posts: 629
Website

Re: Engine contest

Could i use a medusa engine?
Example:
http://www.phunland.com/phunbox/upload/image/th/24290_Car_with_medusa_engine.png
Author: xplane80
Title: Car with Medusa engine
File Size: 17.46 kB
Rating: http://www.phunland.com/phunbox/rating/24290
http://www.phunland.com/phunbox/theme/img/download_bar_red_part.pnghttp://www.phunland.com/phunbox/theme/img/download_bar_blue_part.png]

It's powerful but not Fast though.

Offline

 

#15 2009-08-28 15:02:39

Torpedo
Respected Member
Registered: 2009-04-07
Posts: 103

Re: Engine contest

Imagine the point is to make a spring engine, so doubt a medusa is allowed or a spring engine thats powered at a crank, but imagine a piston with a spring would be fine.

anyone else going to enter?


http://i11.photobucket.com/albums/a180/manmuppet/PHUNLANDSIG.jpg

Offline

 

#16 2009-08-28 21:13:16

lowlol
Post Addict
From: U.S.
Registered: 2008-10-16
Posts: 601

Re: Engine contest

bronie - 52.75 seconds

torpedo - your engine stopped at about 170 meters.

gasbomb - no

xplane - no


                   Join the Phunlet collab

http://www.speedtest.net/result/525451425.png
Chat with us at Phun's Chatroom! http://xat.com/Algodoo_Phun

Offline

 

#17 2009-08-28 21:15:21

Torpedo
Respected Member
Registered: 2009-04-07
Posts: 103

Re: Engine contest

lowlol wrote:

bronie - 52.75 seconds

torpedo - your engine stopped at about 170 meters.

gasbomb - no

xplane - no

?

Its reached the end everytime ive used it?
click the grey circle on the crankshaft and check its angular velocity, engage the clutch at about 20, thats what i do and its reaches the end everytime.

If you engage at too lower rpm, it will stall, but thats the same with any engine. Only hold left to start it though, it revs up by itself.


http://i11.photobucket.com/albums/a180/manmuppet/PHUNLANDSIG.jpg

Offline

 

#18 2009-08-28 21:46:26

lowlol
Post Addict
From: U.S.
Registered: 2008-10-16
Posts: 601

Re: Engine contest

Ah I see, your time is 84.91


                   Join the Phunlet collab

http://www.speedtest.net/result/525451425.png
Chat with us at Phun's Chatroom! http://xat.com/Algodoo_Phun

Offline

 

#19 2009-08-28 21:56:13

Torpedo
Respected Member
Registered: 2009-04-07
Posts: 103

Re: Engine contest

Yeah thats about what i was getting when i tested it. it speeds up alright once its in its powerband but its low end power is rubbish so takes ages to accelerate lol.

I expect people will be able to beat that without too much trouble.


http://i11.photobucket.com/albums/a180/manmuppet/PHUNLANDSIG.jpg

Offline

 

#20 2009-08-28 22:03:11

lowlol
Post Addict
From: U.S.
Registered: 2008-10-16
Posts: 601

Re: Engine contest

You can still try.
Try making engines with multiple pistons, they seem to be more powerful.


                   Join the Phunlet collab

http://www.speedtest.net/result/525451425.png
Chat with us at Phun's Chatroom! http://xat.com/Algodoo_Phun

Offline

 

#21 2009-08-29 00:50:59

Bronie12345
wolverina
From: The Forest
Registered: 2008-06-20
Posts: 1355
Website

Re: Engine contest

i made it tongue
i CAN make a faster one with automatic gearbox tongue


http://i484.photobucket.com/albums/rr204/Bronie12345/blueside333x250.jpg     need off-road tires for your phun car? pm me
http://i540.photobucket.com/albums/gg327/ioncann0ns/ubd9085-1.png                need a powerful engine for your phun car? pm me

Offline

 

#22 2009-08-30 14:23:58

gmonkeyboy
Very Active Poster
From: Pieville, NC
Registered: 2008-07-03
Posts: 375

Re: Engine contest

http://www.phunland.com/phunbox/upload/image/th/30194_Engine_Contest.png
Author: gmonkeyboy
Title: engine contest entry
File Size: 42.06 kB
Rating: http://www.phunland.com/phunbox/rating/30194
http://www.phunland.com/phunbox/theme/img/download_bar_red_part.pnghttp://www.phunland.com/phunbox/theme/img/download_bar_blue_part.png

it should turn over just by spinning the wheel the right way or already be started

the higher the Hz the better it performs

so if you can, run it at the highest Hz you will big_smile


http://i413.photobucket.com/albums/pp213/gmonkeyboy/sigmaster.gifhttp://internetometer.com/image/4097.png
http://i413.photobucket.com/albums/pp213/gmonkeyboy/sigb.gif

Offline

 

Board footer

Powered by PunBB
© Copyright 2002–2005 Rickard Andersson

Phun and Phunland.com is copyright of Algoryx