Metamod Source Game Event listening

05 October, 2016

A small explanation on how to listen to game events. This example is made for CS:GO, but will work on other Source based games too (some event names may be different). The example is meant for class based plugins. So if you are creating static functions you'll have to do things a little bit different.

PHP milliseconds timestamp as an integer

05 June, 2016

There is no native function for a unix timestamp in milliseconds, only 'time()' which returns seconds since epoch and 'microtime()', which returns microseconds since the current second. Although you can use 'microtime(true)', but it returns a float that can not guarantee precision. Or just 'microtime()' and explode the string.

Golang mgo append to a nested array in a document

24 May, 2016

Small tutorial on how to add/push/append a new element to an array/list inside a document, based on my previous post.

Golang mgo retrieve nested structured arrays

24 May, 2016

Small tutorial on how to retrieve nested arrays/lists from a 'mgo.Find()' result.

Golang transfer a file over a TCP socket

21 May, 2016

In this tutorial I'll demonstrate how to send a file in Go over a TCP connection using a server that sends the file and a client that receives it, I'll try to go into detail as much as possible.

You can download the source code here.

Comments and remarks are more than welcome.

Golang mgo create objectid from a hexadecimal string example

19 May, 2016

Storing a string that holds the hexadecimal string of a objectID is done by using the bson package with function 'objectIdHex()'.

Golang mgo findAndModify auto increment id tutorial

17 May, 2016

Here is a brief explanation for the 'findAndModify()' equivalent for mgo. Instead of 'findAndModify()' we will use 'mgo.Find().Apply()'. I will demonstrate how to use auto incremented ids instead of random unique generated IDs for documents, since mongdb does not have a native way of doing this (because MongoDB is not a relational database).

It work's like this, we create a collection, insert a document in that collection that contains the last generated ID. Every time we call 'findAndModify()', mongoDB will increment the value and we get that new value back, which you should use to insert a new document with.

Golang byte to int example

10 May, 2016

In Golang there isn't a native function to convert a character number (!= int number) to int.

An int in bytes is the normal sequence of 0-9 normally, but when you are dealing with number characters, they start of at number 48 (in the ASCII table)

So a character 0 is 48 in bytes, 1 is 49, 2 is 50, and so on...

Golang hash sum and checksum to string tutorial and examples

17 April, 2016

The output of the function "hash.Sum()" is generated in byte code, and the output of "Checksum()" is a unsigned integer.

Generate CRC32 hash of a file in Golang turorial

17 April, 2016

In previous posts I showed how to make a MD5 hash and a SHA1 hash of a file, generating a CRC checksum on a file is however a bit more complicated since it uses a polynomial table. I'll explain everything in depth.

Generate SHA1 hash of a file in Golang example

08 April, 2016

This function is based on my previous post but adapted for the SHA1 algorithm.