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Game Creation Mastering Development

Potion effect never wears out

I am writing a mod for Minecraft (in Java, duh) and want to apply a random potion effect like this: private static Effect[] poss_effects = new Effect[]{ Effects.SPEED, Effects.SLOWNESS, Effects.HASTE, Effects.MINING_FATIGUE, Effects.STRENGTH, Effects.INSTANT_HEALTH, Effects.INSTANT_DAMAGE, Effects.JUMP_BOOST, Effects.NAUSEA, Effects.REGENERATION, Effects.RESISTANCE, Effects.FIRE_RESISTANCE, Effects.WATER_BREATHING, Effects.INVISIBILITY, Effects.BLINDNESS, Effects.NIGHT_VISION, Effects.HUNGER, Effects.WEAKNESS, Effects.POISON, Effects.WITHER, Effects.HEALTH_BOOST, Effects.ABSORPTION, Effects.SATURATION, Effects.GLOWING, Effects.LEVITATION, Effects.LUCK, Effects.UNLUCK, Effects.SLOW_FALLING, […]

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Mastering Development

Calculating the Potential Future Exposure for IR swaps in python using EONIA curve for discounting and 6M EURIBOR forward curve for pricing

I want to calculate the Potential Future Exposure (PFE) of a portfolio of two swaps using 2 curves – EURIBOR 6M to price the floating leg, and EONIA curve to discount the fixed leg of the swaps. I built the two curves with Quantlib Python Cookbook, and for the swap pricing and PFE calculator I […]

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Game Creation Mastering Development

Understanding how to add new types of entities to an existing entity system

Slightly generic title, but I found this wonderful code snippet that helped me get nice scrolling working in a little demo I’m working up: https://stackoverflow.com/questions/14354171/add-scrolling-to-a-platformer-in-pygame It came with a nifty entity-based system that I’m not wholly familiar with. As of now, each time a ‘P’ is seen in the tilemap it is treated as a […]

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Game Creation Mastering Development

The elements of a perfect juicy jump

I have seen and implemented these ideas: Simple Physics based Movement SO answer. Building a Better Jump GDC Talk. And written a tutorial about it Making a Platformer in Pico 8. Finally made a simple game Coler Js2020 using these ideas. People have complained the player is too fast, or the springs are not right. […]

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Mastering Development

cnn wrong prediction even though model shows good accuracy in training and validation data

I have used the skin cancer classification competition data in Kaggle. There are 4 labels and the entire data is imbalanced. I ran the resnet 18 model on a 10 fold cross validation split to train the data and each fold was given around 2 epochs. The code has been attached below. Basically the model […]

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Mastering Development

Compare current row with all previous rows

For df: id Date ITEM_ID TYPE GROUP VALUE1 VALUE2 VALUE3 0 13710780 2019-09-03 SLM607 O I 1 C698910-24 NaN 1 13667449 2019-08-02 887643 O I 3 NaN NaN 2 13667450 2019-08-02 792184 O I 10 NaN NaN 3 13728171 2019-09-17 SLM607 I I 20 C701113-19 NaN 4 13667452 2019-08-02 794580 O I 2 NaN NaN […]

Remix IDE How to deploy proxy contract via “At Address” correctly?

I am started to studying how to write an Ethereum smart contract with Remix IDE and configured Ganache & Truffle in localhost. I practicing follow this article (Upgradable Proxy Contracts). Therefore, I will have the files as following: Registry.sol (Main Contract) pragma solidity ^0.6.12; import ‘./Storage.sol’; contract Registry is Storage { address public logic_contract; function […]

What limitations are there to ByteBuddy’s ability to “spread” an Object array over a method’s parameters?

I am aware of the MethodCall#withArgumentArrayElements(int) method. Briefly, it allows you to accept an Object[] and invoke some other method, supplying its parameters in order from the Object[] identified by the int parameter. Usually you also use a dynamic assigner. I am finding an odd limitation where this does not appear to work. I’d like […]

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Mastering Development

How can I resolve 400 status code by sending POST in Golang?

I have Python script, that works fine def register(): url = prime_url + ‘/v2/mobile/user/register?lang=ru’ payload = { ’email’ : ‘test@test.test.mail.com’, ‘deviceId’ : ‘testId’, ‘password’ : ‘Test1234’ } response = requests.post(url, data = payload) print(response.text) Response: {"success":true,"data":"SUCCESS_FIRST_STAGE_REGISTER","params":"Two-factor authentication code sent to test@testtest.test.mail.com","code":200,"runTime":2.391624927520752} I wrote code on Golang: func postRequest(target string, params string) { var jsonStr = […]

Why does this time out? Is the time complexity not O(n^2logn)?

This problem comes from a leetcode problem called "3sum." I will include the problem statement, as it might be helpful in answering my questions. Problem Statement: Given an array nums of n integers, are there elements a, b, c in nums such that a + b + c = 0? Find all unique triplets in […]