small update, unfortunately, it seems I don't possess the skills yet to add gpu or multicore acceleration to this simulation, but all hope is not lost yet

the simulations I've uploaded here are about 1500 particles each if I remember correctly

the speed problems come from displaying 1500 sprites.

I ran the simulation with 150,000 particles and no display and it was about 150fps

obviously we need to be able to display the particles in some way, but a more efficient form of display undoubtedly exists to find an outline of particles, although greater minds than mine have had problems finding a perfect one:

http://www.rchoetzlein.com/theory/?p=129

however, when limiting the simulation to 2 dimensions the problem might be simpler

I won't tackle this until after I make an alpha release of the fluid (smoke) plugin, but I have one idea where I set up a grid like the smoke simulation, and count the particles in a given grid space, and use a single sprite which changes size depending on the number of particles, when the number is too small, it will split and be represented by multiple sprites

also, though it doesn't seem possible without rewriting the whole simulation, which I'm not up to, if I find a way to actually limit the simulation to calculating in 2d that could greatly speed things up. even the 2d looking versions youve seen are of 3d water in a 2d container, so I believe there is wasted cpu time on the 3rd dimension even though it isn't doing anything

I'll keep you posted

Looking great so far. Excellent work.

Just how efficient is it though? Looks like there's a lot going on.

once again, not as efficient as a gpu solution, but I'm going to have a look at making a directcompute, or opencl implementation. Depending on how similar they are to CUDA, as there is a open source for a CUDA version as well. If not, I'm also going to have a look at making this one work for multiple cores.

I can get about 1800 particles before it starts slowing down

Looks promising

Is this going to be a pure liquid physics simulation or will the plugin care about the graphics as well? And, will it be fast enough to be integrated to a game?

it's going to work how the final version of the other plugin will

actually, that's what it's doing now, those are sprites, and after I get some better container manipulation working, I'll see how fast it goes while other stuff is going on

also, check it out...

about the happy faces...don't ask:

http://dl.dropbox.com/u/1013446/fluid2.exe

and fluid attracted to a central point of gravity:

http://dl.dropbox.com/u/1013446/fluid3.rar

ok

I need to figure out what can be done with boundaries, because for now it's not as flexible as I'd like, and I'm going to finish the fluids plugin first

and lastly, in this demo, the black squares are adjusting to fit around the liquid, not the other way around, so again, the liquid is not reacting to the black squares:

but look: liquid physics in construct:

http://dl.dropbox.com/u/1013446/liquid.rar

You can already do that with the big magnifying glass at the top of the screen

Width, yes.

Chat. I don't see what's wrong with chat, its right there at the top of the screen at all times, you click, and you're there. Certain people use it all the time, everyone else ignores it. I'm not sure what you mean, unless you're saying one less step so you don't have to choose a username, but I'm not sure that one step is what's stopping people.

Contests, idk. Can't hurt anything, might be fun. but I think 1 hr or 24 hr, or 48 hr would be the best format, I don't see people spending a lot of time on something with no concrete reward. But having it be more official with a specific forum for it, moderators in charge and on a regular basis instead of the random thread by a random user at some random interval would probably encourage participation. Back when they were semi regular, I never participated because I was never sure when they were or which time zone, etc.

And maybe a feature of the weekly winner linked from scirra front page. It would be good to attract attention to construct as well,since the idea of a 1 hr competition with any other game creation tool is utterly ridiculous

yeah

I can probably add wraparound if you'd like

but that was the one I used before with the unwritten license from the land of mystery

this one has more options though, and takes advantage of multicore cpu's

and has a license that clearly allow commercial use

but thanks

Well, as of reading your first question it'll interpolate

That makes more sense, though I may put both options, since if it was in the center od 4 squares

That would be a lot of interpolation if you wanted to have a lot of it going on

On a side note, I was having a look at how the wall reflections are done. I will probably be able to allow you to add obstacles, but only aligned to grid cell sizes, probably no diagonals either

Ill look into getting past both those limitations, but it seems doubtful

Unless I'm misunderstanding, the way to do that would just be to set sprite speed to

Xspeed=fluid.velocityx(sprite.x,sprite.y)

Yspeed=fluid.velocityy(sprite.x,sprite.y)

Instead try

Always. Set block to not highlighted

If mouse over - highlight

...

New objects that handle popular video game features...

-Custom music track object... This would allow gamers to add their own custom music into the game themselves by selecting it in a game menu and then searching his/her hard drive, and saving the music into the gamesave file. It should be event-based meaning that the programmer can leave it open to the gamer to set the music for any number of -in-game events that the programmer has left open. For example, music that plays for each level, when a player dies, when a player clears a level, finds an item, etc, etc... whatever the programmer leaves open, the gamer can add custom music for it.

...

User Button mapping- This would let the gamer easily reconfigure the button commands the programmer has set.

You can do the first one thru events, if I remember (I usually don't) ill post an example later. Pm me if its really important to remind me

And if you're using 9962 like you said, there's a custom controls pl,ugin that let's you do the second one, though changes to the latest version make it so it doesn't work with 9992

Though I may make a new version sometime this year that works in the latest version,, maybe also with directinput controls as well

Action - set text to

python("somemath(x)")

much better then

I will proceed as planned

thanks everyone

also, just a teaser for those who will use google and youtube to decipher what I'm saying lest I just say it and generate too much excitement for something I'm not sure will work or not

what we've been doing here is fluid dynamics

I've found another free for commercial use source code for smoothed particle hydrodynamics, which is what I was really looking for in the first place

I won't say any more on that until I have a working demo, other than that I'm disgustingly excited about it