Algodoo

I guess that you are using your Algodotic license (similar to an artistic license) when you say "grow". Amusing.

Nice work.

This can be done in Algodoo by deleting the bullet, and then spawning a tracer slightly into the target:

(e)=>{
e.other.density = 0;
Scene.addPen({
pos := e.pos - [0.01, 0.0];
color := [0.0, 0.0, 0.0, 1.0];
size := 0.05
})
}

Does not work in Phun, but this may give you some ideas.

If you were to do this in Algodoo, then you could respawn the bullet if desired by using code similar to fruitmonger's Resizer.

http://www.algodoo.com/algobox/details.php?id=59402

Interesting linkage and balanced design. I never heard of a James engine before this. Thanks for introducing it.

Nicely done.

Stellar!

Well done.

Users: Run the scene at 1.0x speed if impatient.

Nice. This is a basic mechanical component, implemented with one line of code, without using any global variables. I tried this on my ratchet walker and it worked well. The only problem I ran into is that if I run a scene with this code and then "undo sim start", the Motor Torque gets overwritten with a value of 0.0000.

You may be able to simplify it by removing controllerAcc code, onHitByLaser code, and addLaserPen and then adding the following density code:

density := {_time - sim.time < 0 ? 0 : 0.008};

Just saw your update. Tracers create a nice effect.

Wow. Two downloads and somebody already rated it a 2. Apparently somebody doesn't enjoy a good pun. Puns are the lowest form of humor. Someone who downloaded the scene did not like the down loads (pun intended).

imitation is the sincerest form of flattery

Nicely done.

Your flame thrower effect is good. That's what counts most.

Regarding: "density := {_time - sim.time < 0 ? 0 : 0.008};"
This code says: If time is up, then density is zero, else density is 0.008.

So density would be 0.008 until time ran out.

I've given up on this one. I cant seem to get the phasing of the rotors so that the minimum leading and trailing gap happen at the same point. In other words, the spark plug position for the leading gap is different than the spark plug position for the trailing gap. Maybe someone else can figure out the correct geometry. The U.S. patent number for this engine is 3144007.

Thanks for the suggestion, but I've given up on this one because I can't get the timing right. There is an opportunity here for someone who really understands the Kauertz (Cursed) engine to show us how it works.

Good.

Nice scene. I don't understand the significance of redirection (->) in this case.

Nice demo. I was going to search for a linear damper this morning, but now I see I can easily make one using this idea.

I guess you can revise your "Torsion Damper" scene with this simpler solution.

OK. The reason I asked is that I did a test by deleting the -> and putting the property code directly in the spawning script and I didn't notice any difference when running the scene. I also stopped the script and examined the code in the spawned circles and could see that the self-updating code was there. I'm using the latest version of Algodoo and code interpretation may be different than Phun. It's also possible that I'm missing the point entirely.

5 scenes uploaded in 1 day. All good.

Good. This one will get a lot of hits. Phun and Algodoers love guns.

Very nice. Pascal would be proud.

Nice scene. Works well and good coding example.

Could be improved slightly if the teleported position is the same relative position to the triangle as the start position.

Maybe like this:

If py = yellow triangle position, pr = red triangle position, p0 = item initial position, p1 = item transported position then

p1 = [p0(0) + pr(0) - py(0), p0(1) + pr(1) - py(1)]

Nice scene. As a result I ...

RATED, COMMENTED AND SUBSCRIBED!!

Yes. I noticed that and was wondering who would catch it first. My solution would be to give each person two slices. Another option would be to share the pizza with some new friends. Maybe somebody can figure out how to do odd slices and add it as a scene response.

Amusing scene. I had some difficulty dragging the man into the roller coaster chute, but it was worth the effort. I think it was the "real sharks" that made me want to try this scene.

Nicely done. Also is interesting to watch when camera follow is off.

Where would the spark plugs be located?

2 Kilinich: Thanks for the video link. I can see that the spark is fixed relative to the engine frame. In your model the spark happens at various rotational positions. Maybe it is a diesel engine. A video that shows one configuration for spark plug, intake, and exhaust ports can be seen here:

http://www.youtube.com/watch?v=rF_L2Ulk3i4&feature=related

Works well. I was impressed by how fast you can get the stone spinning with not too much effort.