Gravitation System Simulator

Here i leave you a linux version of a gravitation system simulator i made a few weeks ago on Ogre. The code is a bit messy because my eclipse keeps telling me every single line i write is wrong, even through it compiles and runs well. I believe it only works on a linux with a 64x processor (i will try to build it in my 32x laptop soon).

Application:

v0.1 (Linux 64x)
v0.2 (win32)

The application should be inside the bin folder, called OgreApp. Just choose a renderer and click accept. arrows to move, mouse to look around and mayus to speed up.

Screenshots:

Spoiler:

Sourcecode:

v0.1
v0.2

Description of sources:

Spoiler:

As soon as i can, i will update this post with a new version, hopefully much better code-wise (as i started to fix my eclipse so it doesent say every line is wrong)

EDIT: I added a new source version, this time with full comments (And they are in english too!!). I added the third axis too, so now there can be stranger things (see fifth picture) I am using Microsoft Visual studio, which means a windows port is much closer, but i still can't produce any working exe.

EDIT2: There you go, a working version on windows. In this one i left the two moons, wich means that the earth loses both its moons after only a few earth days. Special thanks to doggit for its help testing.

Right off the bat, I would like to applaud you for creating something. The last prototype that came out that I can remember was Seregon's cell resource tracker. I love it when these come out. Really great work here, I gave you points for that.

From the screenshots it looks great, but I had trouble finding a program to run it with. Do you have any suggestion?

Nice work, as Nick says, presenting anything working is useful right now. Looking at your introduction thread, you mentioned making a gravity sim before, but had no Ogre experience, did you translate this from your previous project?

It won't run on windows, as it's only been compiled for linux (the OgreApp file isn't a file to be opened, it's a program to be run). Looking at the code though, I can't see any obvious reason it shouldn't compile for windows too, though doing so isn't necessarily trivial.

I'll be running through the ogre tutorials sometime soon, and will be doing so primarily for windows, so should be able to compare the two. Having a working linux example should really help there.

Finaly, on the topic of prototypes, I really should release a few more... I had a much improved version of the compound tracker almost done months ago, but had to shelve it to coordinate other things.

NickTheNick wrote:

Right off the bat, I would like to applaud you for creating something. The last prototype that came out that I can remember was Seregon's cell resource tracker. I love it when these come out. Really great work here, I gave you points for that.

From the screenshots it looks great, but I had trouble finding a program to run it with. Do you have any suggestion?

Thanks! About running it, as i said (and seregon pointed out), it's only compiled for linux. My code would be the same, i dont think it needs any adaptation, but i need a working windows compiler in order to make it executable for windows. I should have a 32 bits for linux tomorrow, maybe sunday, if my laptop decides to behave well. Anyone feel free compile it for windows.

Seregon wrote:

Nice work, as Nick says, presenting anything working is useful right now. Looking at your introduction thread, you mentioned making a gravity sim before, but had no Ogre experience, did you translate this from your previous project?

It won't run on windows, as it's only been compiled for linux (the OgreApp file isn't a file to be opened, it's a program to be run). Looking at the code though, I can't see any obvious reason it shouldn't compile for windows too, though doing so isn't necessarily trivial.

I'll be running through the ogre tutorials sometime soon, and will be doing so primarily for windows, so should be able to compare the two. Having a working linux example should really help there.

Finaly, on the topic of prototypes, I really should release a few more... I had a much improved version of the compound tracker almost done months ago, but had to shelve it to coordinate other things.

Yes, this code is nearly all from my other gravity sim, i just translated it from Java. It actually took me one week to give up on developing on windows, a weekend preparing and learning basic ogre and just a few hours translating everything over (actually was a few hours understaunding how objects work in c++, 5 minutes for ctrl-c, ctrl-v and 10 minutes fixing the things that on c++ and java are different)

The code should be the same. if you look at the CMakeLists.txt, which tells CMake how to compile it, it is prepared to run on nearly any plattform.

Wow I feel very foolish now for overlooking that. Nonetheless, great work. Hopefully we will hear from the other programmers sometime too.

I'll have a go at compiling this for windows at some point, but I'm not very familiar with using cmake, so it may take some time. I'll be starting the ogre tutorials at a some point today, so will have a look at how the windows and linux compilation differs.

Apart from that, the code looks reasonable actually, though it could use quite a few more comments!

OK, v0.2 is out. I got it working in windows, but only if i run it through Microsoft Visual Studio. I will look how to generate an exe. I also added the third axis and cleaned up most of the code, as it was huge mess. Now it shoud be much easier to understaund.

Daniferrito wrote:

Here i leave you a linux version of a gravitation system simulator i made a few weeks ago on Ogre. The code is a bit messy because my eclipse keeps telling me every single line i write is wrong, even through it compiles and runs well. I believe it only works on a linux with a 64x processor (i will try to build it in my 32x laptop soon).

Application:

Download link (64x)
The application should be inside the bin folder, called OgreApp. Just choose a renderer and click accept. arrows to move, mouse to look around and mayus to speed up

Screenshots:

Spoiler:

Sourcecode:

v0.1
v0.2

Description of sources:

Spoiler:

As soon as i can, i will update this post with a new version, hopefully much better code-wise (as i started to fix my eclipse so it doesent say every line is wrong)

EDIT: I added a new source version, this time with full comments (And they are in english too!!). I added the third axis too, so now there can be stranger things (see fifth picture) I am using Microsoft Visual studio, which means a windows port is much closer, but i still can't produce any working exe.

great work!

Ok, so much for having a go at the ogre tuts today, getting to the point of even compiling an ogre app is an absolute nightmare... I feel like I've spent the last 5 hours smacking my head against my desk!

That's not to say ogre is at fault, really. Rather, its my choice of developing in eclipse cdt, while compiling via mingw/msys, and my complete lack of familiarity with any of the above, or cmake. I've also lost count of how many times I've had to add or change an environment variable...

That being said, I am getting incrementally closer to actually compiling something (namely the tutorial framework mentioned above)...

update - several hours later, still not working. I now seem to have fixed most of my previous problems, the only one left is trying to get boost and mingw to play nicely together.

Any effort is valuable effort Seregon. I am really glad to hear you working on Ogre. From what little I know of the current programming situation, understanding Ogre is one of the biggest hurdles. Just remember that we are all behind you on this. If you need any help, I'm sure we would be willing to help.

I can't wait, you are really doing well here!

Ok, i got the v0.2 working on windows. The upload link should be in the main post, but here is goes in case i havent got time to edit it yet.

G-POC-v0.2

It is for windows x32, but it should run fine on x64 (It runs fine on mine at least)

Special thanks to Doggit for the testing.

...it works

It only took me 2 days (about 19 hours straight), kept me up until 4am last night, and involved reading about 100 different websites for help, but I finally got it working. And by 'it', I mean the tutorial framework... a big, black, blank fullscreen app which does absolutely nothing, but atleast it's not an error message.

Getting that to compile and run via mingw/eclipse is probably the single hardest thing I've ever done on a computer, but it's done now, so I can finally start the tutorials! It also makes me realise why so few games are crossplatform, had we been targetting only windows I'd have been up and running in about 30 minutes.

Right now though, I need food and water, so I'll come back to this in a few hours time.

It's great to hear that Seregon. Good luck with the tutorials.

Daniferrito: I can't open it because my Norton Security program keeps removing the .exe since it says it is dangerous.

Hey guys, I'm not dead. That file's a bit intimidating though, so I won't dabble with it. I'm happy to know that things are moving.

NickTheNick wrote:

It's great to hear that Seregon. Good luck with the tutorials.

Daniferrito: I can't open it because my Norton Security program keeps removing the .exe since it says it is dangerous.

It shouldnt be doing that. I passed the file over to Doggit and it ran fine in his computer. I downloaded it back, the first time i ran it my computer froze when i closed it, but it seem alright now, not sure if it was related.

It still doesn't work, I tried it on another computer that Norton wasn't installed on, and it said that:

"This application has failed to start because MSVCP100.dll was not found. Re-installing the application may fix this problem."

I tried reinstalling, didn't work. However, if I am the only one with this problem, I don't want to deviate the course of this thread.

EDIT: I solved the problem by installing a Microsoft C++ program, but now when try to run it it just says that a different file is missing.