conway | Conway 's Game of Life | Audio Utils library
kandi X-RAY | conway Summary
kandi X-RAY | conway Summary
This is a pretty straightforward implementation of Conway's Game of Life, on a small (8x8) grid - except I wrote it to interface with a Novation Launchpad controller, to both show the grid on the Launchpad and use the Launchpad buttons to draw/erase cells on the grid. It's a good simple example of using MIDI - input AND output - in a non-music application. Check it out, feel free to fork, submit pull requests, etc.
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QUESTION
I am currently coding Conway's game of life and to add randomization to my world I have implemented a function to create a random matrix with 1 and 0 with n rows and n columns.
The problem is that, for my code to work, I need a random matrix of 1 and 0 but they have to be floats, so 0.0 and 1.0 So I cannot use:
...ANSWER
Answered 2021-Jun-10 at 14:13>>> np.random.randint(0, 2, (10, 10)).astype(float)
array([[0., 0., 0., 1., 1., 0., 1., 1., 1., 1.],
[1., 1., 1., 1., 0., 1., 1., 0., 0., 1.],
[1., 0., 1., 0., 1., 1., 1., 1., 0., 0.],
[1., 1., 0., 1., 1., 1., 1., 1., 1., 1.],
[0., 0., 0., 1., 1., 1., 0., 1., 0., 1.],
[0., 1., 1., 1., 0., 0., 1., 0., 0., 0.],
[0., 1., 1., 0., 1., 0., 0., 1., 1., 0.],
[0., 0., 0., 1., 0., 0., 1., 0., 1., 0.],
[0., 1., 1., 1., 1., 1., 1., 0., 1., 1.],
[0., 1., 0., 1., 1., 1., 0., 0., 0., 0.]])
QUESTION
I'm trying to paint "pixels". I created Conway's game of life in Unity and i want to add a feature where you press mouse button and when it's pressed you "paint" - set cells alive. So my idea was:
In Update() if mouse button is pressed Start Coroutine.
In Coroutine you have loop that sets cell pointed by Input.mousePosition to Alive-state then waits for end of frame. Loop, and by that Coroutine ends when that mouse button is released.
My problem is that if you move mouse rapidly created line will not be continuous, because inputs form mouse from two frames will be different (far apart).
Since you can take Input.mousePosition only once per frame i tried approximating this by storing mousePosition from previous frame and calculating all points that lie on Edge between CurrentMousePosition and PreviousMousePosition
However i was not happy with the result.
My Question is: is there a better way to prevent this un-continuous line than letting it be and then fixing it? And if not is there a better way to approximate points that lie on Edge?
...ANSWER
Answered 2021-Jun-09 at 23:54You could interpolate with a resolution variable. Interpolation finds a point between two points, based on t. t is between 0 and 1, and when closer to 0, the closer to the output is to the first vector, and when closer to one, the closer the output is to the second. We could use a for loop using a resolution value as the resolution of the interpolation (a resolution of 2 would have t as 0, 0.5, and 1).
Here is a script (not yours) that uses interpolation with the mouse position:
QUESTION
So I'm making a Conway's Game of Life in Python 3 and I have this function called updateboard
that gives birth and kills cells based on their neighbor count (from 0 to 8) stored in self.neighbors
. The function looks like this:
ANSWER
Answered 2021-May-29 at 05:38Note that this behaviour might change depending on the Python interpreter or CPU architecture you are using.
In general, x86 CPUs has a special bit that is checked whether a value is zero after arithmetic operation, called Zero-Flag. This is used when you want equality checks, e.g.:
if x == 3
In assembly, it would be:
QUESTION
So i am trying to code conway's game of life in javaScript but something isn't working. If i but three cells in a row they should just flip directions but instead it makes a 2 by 2 square. I looked around and found that you need to wait to update position until the whole "board" is scanned. But i atleast think I'm already doing that. So I genuinely have no clue what is wrong.
I call the uppdateGridValues function to run a generation
...ANSWER
Answered 2021-May-26 at 23:13I'm reading through, and I've found something which may be causing the error:
your calls of parseInt()
in countNeighbors()
.
From the MDN JavaScript Docs on parseInt()
:
"The
parseInt()
function parses a string argument and returns an integer ... orNaN
. (if the input is invalid in a few different ways)"
Basically, parseInt()
is expecting string input and youre giving it integer input. I'd reccomend removing the calls to parseInt()
from countNeighbors()
like this:
QUESTION
following are my files for html, .ts and json . As json data was very extensive therefore i have just added a few states and their cities. my 1st dropdown is showing all states. Now I want to match my 1st dropdown's selected value of state with a key "state" in "cities" object in my json file so i can populate 2nd dropdown with cities relevant to that state. and I want to do this in function "getCitiesForSelectedState". please help me find solution for this.
//.ts file
...ANSWER
Answered 2021-Apr-27 at 16:44You can do it with the $event
parameter.
Make sure to compare your values safely.
If your value is not in the right type or has spaces or unwanted chars, this c.state == val
might not work.
You can use the trim
function to compare your value safely:
c.state.trim() == val.trim()
HTML
QUESTION
I am trying to implement Conway's game of life using checkboxes. In theory I should start with some checkbox checked randomly (and possibly some other manually checked by the user) and then go to the next generation by hitting a button. The code I made so far starts with just unchecked checkboxes (the random part is a detail I will care about later).
Here's my code:
...ANSWER
Answered 2021-Apr-11 at 16:48nextGen
is called with an argument that is determined by the DOM API: the event object. This will be the first argument and set the parameter variable rows
. This means the for
condition on rows
will be false and so you have no iterations of the outer for
loop.
To fix this particular problem, make sure that nextGen
is called without any arguments:
QUESTION
I have to implement Conway's Game of Life. Everything works as it should and given tests are passing. My only problem is that this method gives complexity error while running PMD rules on my file. I understand that so many if sentences are the cause of that, but while trying to compact them into smaller groups I accidentally broke my code.
Here's what it says:
...ANSWER
Answered 2021-Apr-06 at 15:31Loop over the "delta x" and "delta y" from your current position:
QUESTION
I should not be asking "what is better" but here is the problem:
I have chemical structure (MOLFILE) drawing coded using HTML canvas. I have a Conway Game of Life coded using canvas. The canvas coding seems easy and standardized, and it comes with a great feature I used in the Game of Life case, which is the canvas media recording that is very easy (the Canvas Recorder code is just a few lines of code.)
But I also use some D3 for forced based layout of natural structures where I have no absolute positioning like I have with Conway Life and with the MOLFILE drawing. And I need to combine the MOLFILE drawing with the D3 force based layout. Also, yesterday I checked if I can use the Canvas Recorder to record the animated SVG I get from D3 force based layout. And the only code I found seemed to copy the SVG drawings into a canvas to then use the canvas media recording feature. Very strange.
My question is: shouldn't SVG and canvas be somehow compatible? Don't browsers ultimately use the same underlying 2D graphics engine for both SVG and canvas? How can the two be mixed? Does D3 have a canvas version or is it only for SVG? Is there a canvas based alternative to D3, especially for force directed layout?
This will help me decide what I should retain as fixed and what I should move. I could port the MOLFILE drawing to SVG. Or I could port the force based layout stuff to canvas. Something's gotta give. Ideally there would be some compatibility layer so I don't need to port anything and could use them together. But speed, efficiency is an issue as my drawings have thousands of nodes and arcs.
...ANSWER
Answered 2021-Mar-18 at 01:17shouldn't SVG and canvas be somehow compatible?
Yes and no...
An SVG image is in between an HTML page (as a language, it's based on XML), and an image (at the end, its graphic rendering is what matters).
As a graphic engine, it does share a few concepts with the canvas API, and work is done at least on the canvas API side to indeed come up with more unified APIs. For instance the Path2D interface does accept an SVGPath declaration string as input, there are also discussions to expose a new CanvasFilter interface based on SVGFilters etc.
All that can be done on an SVG can also be done on a canvas, but for most of it, you'll have to write the rendering code yourself instead of letting the browser handle it.
Don't browsers ultimately use the same underlying 2D graphics engine for both SVG and canvas?
Yes both at the end fall in the same Skia / Cairo / WebRender / Direct2D painters, but so does HTML+CSS. So this doesn't mean much. The APIs are still very different.
How can the two be mixed? Does D3 have a canvas version or is it only for SVG?
Although D3 was written with SVG in mind, and some of its methods (like transitions) works best with DOM nodes, a lot of its tools don't really depend on anything else than JavaScript.
You pass some data to it, it helps transform it, generate coordinates / color / whatever.
So no, there is not a canvas version of D3, but you can use D3 to help you draw on a canvas, there are many articles on the web explaining how to do various things with D3 on a canvas, because yes, all isn't straightforward.
For a force-directed-graph, it shouldn't be too hard though.
Regarding why you can't use a MediaRecorder to record an SVG like you can do with a canvas, among other things, SVG does expose far more sensitive information than a canvas.
For instance you could have an svg like:
QUESTION
I try to send an email using the following code :
...ANSWER
Answered 2021-Mar-16 at 09:41The problem was that there is a difference between the host, that looks like and the user, that looks like
myemail@mycompany.com
. This is what was causing authentication failure.
QUESTION
I'm trying to make Conway's game of life in codepen with pure JavaScript and DOM. I need to toggle the style and value
attr of the each cell onclick
. I can't quite get this to work so here I am.
js/dom:
...ANSWER
Answered 2021-Feb-24 at 16:59If you try console.log(typeof (this.getAttribute("value")) )
in the function, it will show string
rather than boolean
.
I have replace your code
if (!this.getAttribute("value"))
with this:
if (this.getAttribute("value") == "false")
and I think it works like what you want..
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