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Game Creation Mastering Development

How to calculate consistent signed Normal of Triangle?

I am currently calculating normals for 3 point coplanar triangles like P1, P2, P3 $$ N = (P1 – P2) \times (P2 – P3) $$ This equation will give me different negative or positive Normal depending on the order of the points. const N = getNormalForTriPoints(p1,p2,p3); //1 const N = getNormalForTriPoints(p2,p1,p3); // -1 I am […]

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Mastering Development

How to sort ‘WindowsPath’ object files

I am iterating through files in a directory using Path().glob() and it’s not iterating in the correct natural ordering. For eg. it’s iterating like this: [WindowsPath(‘C:/Users/HP/Desktop/P1/dataP1/SAMPLED_NORMALIZED/P1_Cor.csv’), WindowsPath(‘C:/Users/HP/Desktop/P10/dataP10/SAMPLED_NORMALIZED/P10_Cor.csv’), WindowsPath(‘C:/Users/HP/Desktop/P11/dataP11/SAMPLED_NORMALIZED/P11_Cor.csv’), WindowsPath(‘C:/Users/HP/Desktop/P12/dataP12/SAMPLED_NORMALIZED/P12_Cor.csv’), When I want it to iterate like this: P1, P2, P3 and so on. I have tried using the code below but it gives me an […]

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Mastering Development

How to compare elements within a list of case classes?

I have case class Person Person(id: String, birthdate: Int, movedate: Int ) And a list of these case classes called personRegistry personRegistry(Person(A1, 1, 5), Person(A2, 22, 30), Person(A3, 4, 20), ……) How do I find whether any of the Person’s have their birthdate / movedate fall within other Persons’ birthdate and movedate, and then group […]

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Mastering Development

Probability of an element in list

My data List = [[[12,1,6],[12,1,6],15],[[12,2,6],[12,2,6],18]],[[12,3,6],[12,3,6],24]] I have a data containing number of rows having a transition from 12,1,6 to 12,1,6 is 15 number of rows having a transition from 12,2,6 to 12,2,6 is 18 number of rows having a transition from 12,3,6 to 12,3,6 is 24 as list This data is not generated.There are many […]

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Mastering Development

if statement dataframe python New attemp

I asked the question in the following post and it got closed: Previous Post and it got closed by @Brad Solomon and marked as duplicate. But the suggested links did not helped in my solution. So again my questions: I am trying to calculate a value and making a if statement based on Product, but […]

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Mastering Development

GNU Lightning – Lisp like “Apply” function

I’m trying to make a sort of Lisp like “Apply” function with GNU Lightning: a function F that receive a pointer to a function, an argument count and an array of integers and call G with the right number of parameters. My code is not working properly. What’s wrong? How can I do? Here the […]

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Ask Mathematics

Counting number of integer vectors and asymptotics formula

I am interested in counting (in fact asymptotic results as $n$ tends to infinity is the aim) the number of couples $(x_i,x_j)$ such that $\|x_i-x_j\|_1=m$ for a given integer $m\ge 0$, where all the $x_i$‘s, $x_j$‘s are vectors in $\{0,\dots, p\}^n,\, p\in \mathbb{N}$. I denote by $K_{n,m}$ this set of couples and $\# K_{n,m}$ is […]

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Mastering Development

how to set the eighth bit to zero (reading data from smarcard)

How to set the eighth bit to zero? Sometimes I get incorrect le. What is wrong with p1, p2? CommandAPDU(cla, ins, p1, p2, ne); CommandAPDU readBinaryAPDU = new CommandAPDU(0x00, 0xB0, offset >> 8, offset & 0xFF, 0xff); public byte[] readCard(ResponseAPDU responseAPDU, CardChannel channel, byte[] fid, FidAdjusted fidEnum) { ByteArrayOutputStream baos = new ByteArrayOutputStream(); int offset […]

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Mastering Development

Flask Application with multiprocessing randomly connection refused with multi request

I have an API written in a flask that crawls data from the site using selenium. when making a single request it works fine. but, when I make multiple requests from my local then gives connection refused error for some requests. app.py app = Flask(__name__) if __name__ == ‘__main__’: app.run(host=”0.0.0.0″, port=5001, debug=False) when I make […]

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Mastering Development

Array push.apply to add rounds of fixtures?

I’ve modified my first javascript program so that the football fixtures array is built based on a ’rounds’ variable (the number of times teams play each other) rather than hardcoding it. Although the fixtures appear to generate perfectly, it only produces a correct league table for 2 rounds. For 3 rounds or more, the code […]