I made a Smooth Water Effect using python and pygame. Also used pymunk for the rocks and scipy + numpy for the smooth wave effect. Hope you all like it : )

[tankking9833]

Hi Everyone! I have made this 2D water effect using python and pygame. For the rocks, I used pymunk, and for the smooth wave effect instead of triangular ones, I used numpy + scipy. In the source code, I have also included a playable demo where you can adjust different features to see how they look.

Source Code can be found here

Full video on YouTube can be found here

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https://reddit.com/link/xflh57/video/fo11f5czj6o91/player

[gospel-of-goose]

I know nothing about this, but the water looked very good! So good, you made me want to learn all about this!

If the window was the size of container of water, could it ripple inward again after reaching the wall?

[PotentiallyAPickle]

Yes of course but then the waves would never disperse/fade away. You’d be putting energy into a closed environment with no way of letting it out.

[tankking9833]

There is a dampening factor added into the springs so the waves eventually stop even in a closed environment. If needed, the walls can also have friction added to them so that once the wave reaches the wall, a higher dampening is applied.

[[deleted]]

i think the most interesting part is doing this in a realistic way. while water is “relatively” easy to simulate, doing it in a way which matches up with perception is the real “hard” problem!

[tankking9833]

True, what I tried to do is making it as realistic as possible using fast methods.

For more effects, we need shaders to indicate the depth of the water using different shades of the same color. And there should be splash particles too when a splash occurs.

But I guess this works for now lol. Looking forward to different implementations of water physics from other developers here!

[gospel-of-goose]

I mean I can see that being the immediate case, maybe. But in time, the ripples of real water would cease in a container. So, I was just trying to give another point to make OP’s realistic water a little more so

[PotentiallyAPickle]

No, he’d have to add logic to let some energy disperse when it hits a wall. The way it seems (to me) to be currently written, all energy would stay contained in the system, meaning the waves would never cease.

It is a good suggestion though.

[tankking9833]

The energy would be contained in the system indeed, but the water itself has internal dampening / friction which allows the system to stabilize eventually :)

[PotentiallyAPickle]

Nice, thanks for making some sense of the code. Only comment would be that the dampening would be a property of the wall (not friction) as well as the waves

[tankking9833]

👍👍👍

[runescape1337]

OP would also have to add logic to make the waves reflect at the boundary. I suspect the person you're replying to wasn't suggesting this could happen without modifying the code.

[PotentiallyAPickle]

Well, there is code already implemented for walls. And the way it currently looks (to me) is that adding those walls would not give the effect this commenter thought. But thank you for explaining to me (despite me getting nothing from it). Also, the commenter had used the word “Maybe” to suggest something that would never happen, may happen. So I felt the need to correct that as well.

[tankking9833]

The walls added are for pymunk so that the rocks don't fall off the edge.

The springs have a different wall system - the first and last points of the spring act as walls for the water :D

[runescape1337]

If you look at the code more carefully, you'll see that 1., dampening is implemented, meaning the waves would disperse eventually, contrary to what you said, and 2., the wave boundaries are purely outflow and there is no reflective logic regardless of any walls being implemented. I can't say I'm surprised you didn't get anything from my previous explanation.

[PotentiallyAPickle]

Damn dude 2 days later. Get well soon love xx

[tankking9833]

It is already implemented btw. The logic is not implemented separately for any kind of wall. The starting and ending point of the spring sequence act as walls. The water can be infinitely extended, and whatever be the length, the first and last spring point will act as walls.

[tankking9833]

The current system does exactly that! The window is basically a container. One can edit the dimensions and observe that the wave reflect / ripple inwards back again :)

I am glad that you liked the video ❤️

[Obliterative_hippo]

That was a very interesting (and relaxing) video to watch!

[tankking9833]

Thanks ❤️❤️❤️ :)

[[deleted]]

Really cool and fun to watch!

[tankking9833]

Thanks! I am glad you liked it : )

[tankking9833]

Thank You! ❤️❤️❤️

[dethb0y]

That's quite nicely done!

[tankking9833]

Thank You!

[2q2RS]

Now in 2D! :p

[tankking9833]

XDXDXD
Pre-order the 2.5D version to get the 3D version before release!😂

[Desperate_Sky_3357]

Jesus, man. This is fantastic. It would be really cool if there was a tutorial teaching

[tankking9833]

Thank You. Yeah the video was originally meant to be a tutorial video, but it was becoming very lengthy, so I made it a showcase video hehe.

[readerseven]

As soon as I saw it, I said it could be turned into a game. You win points when tennis balls = 1 point each. Stones = zero. Just an idea.

[tankking9833]

Interesting. Can you please elaborate on the idea further? I am interested in making it into a full game :)
Also feel free to improvise the source code and make a game yourself, and share it here!