Algodoo

I figured out another way to create sound from Algodoo that you might want to experiment with. I used an interesting app called "PhonoPaper". The app creates sounds when your cellphone camera scans a black and white image on paper or on a computer monitor. So, I got the idea of using a geometry, such as a box or circle, to trigger the app via the phone camera. As a test, I made a very simple scene of a bouncing ball. Each time the ball bounced off the ground (a plane) the collision would turn the box white for just a fraction of a second and then black again. That quick flash was picked up by my camera which was sitting about a meter from my computer monitor, and focused on the flashing box. Each flash would create a weird sound in my phone speaker. I quickly realized that there is a significant delay from the collision to the sound the app makes, and so I had to add a delay of about 200 to 300 mS. This method is very limited and would require a lot of experimenting and development before it would be acceptable (if it can be done at all!). Even if you don't use the app PhonoPaper for Algosound, I think you would find the app interesting just to play around with it.

That's a great idea. Maybe suggest that to the author?

It's an Alien that crash-landed there in the woods about 75 years ago. You've heard of Roswell, right?

Hey Flexobotgamer.... I noticed that you always upload at least 2 versions of each scene and then you delete one of them! WHY do you do that?

Thanks, PeachCandy!

The poor cat is frozen solid!

We've known about this since 2009 when Algodoo was created. Apparently, the company didn't think it was serious enough to fix.

No idea why I made this comment.

It's called careless or lazy.

No one needs to adjust the Simulation Frequency to 1200 Hz because you already did that just before you saved the scene and uploaded it to Algobox!

Paarth54321 -- When I click on the number 7 key, it shows 8 in the display.

Thanks. Glad you like it.

Paarth54321 -- I found more errors with your calculator, but I don't know if you want to put more work into making it work correctly. Let me know if you want me to point out all the issues that I found with it, or if you would rather not bother anymore with it. I don't mind helping you if you want to spend more time fixing the bugs.

Okay, here is what I found so far:

1. Calculator cannot do chain calculations. For example: 1+2/3*5= will not give correct answer.

2. The "C" (Clear) key does exactly the same as the "AC" (All Clear) key. It should clear only the entered number and not the entire display.

3. Memory keys do not work at all.

4. In a normal calculator, when a number key is pressed after a calculation has been performed, it should clear the entire display and begin a new calculation. Yours does not do that.

5. Decimal number entry is erratic. For example, I entered 3.14 and the display showed 3.139999

That should keep you busy for a while!

Hi FRA32. I'm glad to see that you are still alive (kinda)! LOL
Well, seriously speaking, you do not have a history of producing Algodoo scenes in great abundance, but the few that you did produce are of top quality (both technically and aesthetically). Much of the esoteric subject matter (such as the subject of this current scene) is way over my mathematically-challenged brain, but I often end up learning something from your scenes. I hope you will continue visiting Algobox, and continue posting awesome scenes!

Now, concerning spline curves and Bezier curves can you give a brief explanation as to how these calculations are used in the real world? I assume these curves are used by mechanical engineers to design gears and other such curvy mechanical shapes, but maybe you can elaborate on that.

Although I don't understand much about spline curves, I do have a pretty good feel for how graphical user interfaces should look and work. There are just a couple of suggestions that I have which should improve the look and feel of your scene. The first is contrasting text. Most of your text in the scene is white text over a black background which is easy and comfortable to read, but the green text, on the other hand, is quite difficult to read especially on a smaller computer screen. I suggest maybe making that green text either a brighter shade of green, or yellow, or white, and/or increase the font size.

The other issue is forcing the camera pan and zoom to be locked to specific values in the scene. When the camera pan and zoom were locked, it prevented me from moving and zooming in so that I could read the green text. I had to Pause Algodoo, read the text, and then Run it again. Maybe a better way to handle pan and zoom is to force the values you want for a particular focal point in the scene, but do not "lock" those values. Once the translation and zoom have been done, return control to the user until they click on another arrow to translate again.

Other than those two suggestions, you did a great job on the scene (as usual!).

Keep 'em coming!!!

FRA32 -- Thanks for the real-world examples. Now I can relate this scene to things that I am familiar with.

I downloaded the scene, but I do not see the changes that you said you made to it. The green text is still green, and the camera pan and zoom are still locked.

Good job on the updates!

This simple computer reminds me of my "old days" (a long long time ago, in a far far away galaxy) when I was coding assembly language programs for an 8-bit microprocessor. That was the best job I ever had!

I totally agree with you.

Bravo! Good job!

This is a comment I made while bored.

polandballenjoyer?

What is this supposed to do? When I click the Run button, the ink containers shake apart and all the ink is gone. When I insert the gear into that device, nothing happens. What are the ink containers for???

Can you give some better, more detailed instructions about what this is and how to use it?

Yeah, Little is correct about the Drag Tool force being too weak. That's an easy fix.

So, how is the "Fuel" used? I couldn't figure out how to get the fuel containers inserted into the machine. Also, the display text is extremely small. Maybe make the text a little larger so it's easier to read.

The scene is a good idea, and very clever. You just need to put a little time into fixing the minor bugs.

Overall, nice work!

Wow, this is awesome!

@BlueMoon2607 -- The thing that I had so much trouble with was trying to figure how HOW to get the fuel into the machine. I finally figured it out!

You can do what you want to of course, but I still suggest that you make the display text larger. In case you don't know how to do that, simply right-click on the text display screen and hover down to "Text". Another panel with open with the text parameters. You will then see a slider labeled "Text scale". Move the slider to increase the size of the displayed text. When it is at the size you like, then save the scene and edit the scene on Algobox to include the new setting. That's all!

Thanks.

Yes! Good job!

Great job!

It's very unusual for a new Algodoo user like yourself to create their first scene with Thyme scripting! Did you have a different user account prior to this one? Or did you practice a lot on your computer before deciding to start posting scenes here on Algobox?

I just realized who you are because you wrote it right in the scene: "made by Danidanijr". You were banned a number of times for different reasons including profanity! Now you are BUSTED again!

OUCH!!! I would hate to be that guy!

Nice effects! Good job!

@MyNameIsThis -- I banned him. Thanks!