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drawcode / unity_ios_verificationsignature.md
Created January 14, 2024 18:50 — forked from BastianBlokland/unity_ios_verificationsignature.md
Way to get the game-center verification signature with Unity.

Even tho Unity has implemented a game-center api (Social api) it doesn't have a way to generate a verification signature, which you need to use game-center as a authentication method.

Luckily the objective-c code required is pretty straight forward. (Apple documentation: generateIdentityVerificationSignature)

#import <Foundation/Foundation.h>
#import <GameKit/GameKit.h>

typedef void (*IdentityVerificationSignatureCallback)(const char * publicKeyUrl, const char * signature, int signatureLength, const char * salt, int saltLength, const uint64_t timestamp, const char * error);

This version completely strips the page.

javascript:(function(){var n=document.getElementsByClassName('Box-body')[0].cloneNode(true);document.body.children[0].remove();document.body.appendChild(node);node.style.borderBottom = 'none';})();
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drawcode / recover-deleted-branch.sh
Created October 11, 2022 02:32 — forked from umayr/recover-deleted-branch.sh
How to recover a deleted branch
## Pre-requisite: You have to know your last commit message from your deleted branch.
git reflog
# Search for message in the list
# a901eda HEAD@{18}: commit: <last commit message>
# Now you have two options, either checkout revision or HEAD
git checkout a901eda
# Or
git checkout HEAD@{18}
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drawcode / git-tag-delete-local-and-remote.sh
Created September 14, 2022 01:07 — forked from mobilemind/git-tag-delete-local-and-remote.sh
how to delete a git tag locally and remote
# delete local tag '12345'
git tag -d 12345
# delete remote tag '12345' (eg, GitHub version too)
git push origin :refs/tags/12345
# alternative approach
git push --delete origin tagName
git tag -d tagName
==========================
How Software Companies Die
==========================
- Orson Scott Card
The environment that nurtures creative programmers kills management and
marketing types - and vice versa.
Programming is the Great Game. It consumes you, body and soul. When
you're caught up in it, nothing else matters. When you emerge into
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drawcode / MinimalAPIs.md
Created September 13, 2021 10:43 — forked from davidfowl/MinimalAPIs.md
Minimal APIs at a glance
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drawcode / AwesomeStruct.cpp
Created April 25, 2020 07:04 — forked from hanzochang/AwesomeStruct.cpp
[UE4(Unreal Engine 4)] Example for parsing json and creating struct instance from parsed json.
#include "ProcedualSpline.h"
#include "AwesomeStruct.h"
FAwesomeStruct FAwesomeStruct::BuildAwesomeStruct(
FVector AwesomeVector,
bool AwesomeBoolean,
float AwesomeFloat,
int32 AwesomeInteger,
FRotator AwesomeRotator
)
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drawcode / custom_game_engines_small_study.md
Created April 24, 2020 19:20 — forked from raysan5/custom_game_engines_small_study.md
A small state-of-the-art study on custom engines

CUSTOM GAME ENGINES: A Small Study

a_plague_tale

A couple of weeks ago I played (and finished) A Plague Tale, a game by Asobo Studio. I was really captivated by the game, not only by the beautiful graphics but also by the story and the locations in the game. I decided to investigate a bit about the game tech and I was surprised to see it was developed with a custom engine by a relatively small studio. I know there are some companies using custom engines but it's very difficult to find a detailed market study with that kind of information curated and updated. So this article.

Nowadays lots of companies choose engines like Unreal or Unity for their games (or that's what lot of people think) becaus

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drawcode / publickey-git-error.markdown
Created April 5, 2020 03:45 — forked from adamjohnson/publickey-git-error.markdown
Fix "Permission denied (publickey)" error when pushing with Git

"Help, I keep getting a 'Permission Denied (publickey)' error when I push!"

This means, on your local machine, you haven't made any SSH keys. Not to worry. Here's how to fix:

  1. Open git bash (Use the Windows search. To find it, type "git bash") or the Mac Terminal. Pro Tip: You can use any *nix based command prompt (but not the default Windows Command Prompt!)
  2. Type cd ~/.ssh. This will take you to the root directory for Git (Likely C:\Users\[YOUR-USER-NAME]\.ssh\ on Windows)
  3. Within the .ssh folder, there should be these two files: id_rsa and id_rsa.pub. These are the files that tell your computer how to communicate with GitHub, BitBucket, or any other Git based service. Type ls to see a directory listing. If those two files don't show up, proceed to the next step. NOTE: Your SSH keys must be named id_rsa and id_rsa.pub in order for Git, GitHub, and BitBucket to recognize them by default.
  4. To create the SSH keys, type ssh-keygen -t rsa -C "your_email@example.com". Th
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drawcode / cert_convert.sh
Created March 21, 2019 04:36 — forked from jmervine/cert_convert.sh
openssl: convert cert from p7b to crt (or cer)
openssl pkcs7 -print_certs -in old.p7b -out new.crt
# openssl pkcs7 -print_certs -in old.p7b -out new.cer