In programming, a concept that usually creates a lot of confusion among those new to it is the concept of passing a variable by value, versus passing a variable by reference. The 2 examples below illustrate the difference between these two ways variables can be passed in Java:Continue reading
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Looking to learn Git on your own, but not sure about where to get started? This article will be a great starting point for you. It’s the first in a series of articles called “Git” good, and it’s designed to help anyone learn Git online in a simple, linear and accessible manner.
In this article, we will be going through the install process for Git and exploring its most basic functionalities.Continue reading
Most programming languages come with native functions that help us round our numbers, either upwards (i.e. ceiling operation), downwards (i.e. floor operation), or to the nearest whole (i.e. round operation). While this is convenient, we sometimes need a bit more than that — what if — for example — we want to round our numbers to the nearest 0.5, or the nearest 3rd?Continue reading
Recently, I’ve done some work for a client with an odd issue: the contact forms on their website (let’s call it
client-website.com) — which delivered completed form enquiries using PHP’s
mail() function — could not send emails through to email addresses containing their own domain.
This means that, if we were to set the form to deliver enquiries to an address like
firstname.lastname@example.org, the email would be completely dropped — you would neither find it in the junk or spam folders, nor find any trace of the email in their admin and mail logs. If we delivered the email to our own personal email addresses (e.g.
email@example.com), or to emails from another domain (e.g.
firstname.lastname@example.org), then the email would go through (and skip right past the spam folder too).
For weeks, this problem confounded me, until now… and it’s actually a really simple fix.Continue reading
If you’ve worked with Lists in Python before, you’ll quickly realise that they work differently from primitives like integers and strings. Consider the following:
a = "hello" b = a a = "world" print(a) # Outputs world print(b) # Outputs hello
Notice that changing the value of
a does not change the value of
b. This is called passing by value. In Python, Lists do not behave this way:
a = [2, 3, 4, 5] b = a a.append(6) print(a) # Outputs [2, 3, 4, 5, 6] print(b) # Outputs [2, 3, 4, 5, 6]
In the above example, notice that changing the value of List
a also changes the value of List
b. This is because both
b are referring to the same List, and this is called passing by reference.
As part of a school assignment in the past year, my team and I created Apoca Force, a tower defense game where WAIFUs (World Apocalypse Intercepting Frontline Units) are deployed onto a battlefield to combat an undead horde. To provide some variation (and eye candy) in gameplay, the game provides a variety of different WAIFUs for players to deploy.
To display the different stats WAIFUs have, we decided to include a radar graph on our build interface to illustrate the stats of each type of WAIFU. In this article, I will talk about the technicalities involved in making that happen.
I have previously written an article about how we rendered Unity’s NavMesh to show our WAIFUs’ walkable areas. Check it out!Continue reading