Exporting your Unity project as an APK

Exporting your Unity project as an APK (for Android)

Are you planning to create a Unity game for mobile devices? Wondering how you can export your game and install it as an app on Android? Look no further — here’s a step-by-step guide to exporting your game onto your Android device.

If you’re looking for a way to test your game as you’re making it, check out Unity Remote — it’s an Android app that mirrors Unity Editor’s Game screen when you are in Play Mode. Once you’ve installed it, we have a guide covering how to get Unity Remote working on your devices.

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Apoca Force - Gameplay

Drawing radar charts for stat UIs in Unity

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!

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Intellisense Featured Image

Fixing Visual Studio’s IntelliSense (auto-complete) in Unity

19 April 2020: We’ve updated this article with a contributed solution from one of our readers in the comments section.

One of the biggest perks of using Microsoft’s Visual Studio to write your Unity scripts is IntelliSense — a code completion aid in Visual Studio that offers suggestions as you write your code, and contextually presents you with information about classes, properties and methods that you are working with.

Given Unity’s enormous scripting API, IntelliSense is a tremendously helpful feature, especially for coders who are beginning their foray into developing games and software with Unity; and while we’d love to say that IntelliSense is automatically set up and linked to Unity’s API when you install it with the Unity Editor, sometimes that’s just not the case. So, if you’ve got both Unity and Visual Studio set up, but find that IntelliSense is still not offering Unity API suggestions, then this guide is for you.

Visual Studio's IntelliSense for Unity
If IntelliSense doesn’t automatically offer Unity API suggestions like these, then it isn’t working.
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Apoca Force WAIFUs

Showing Unity’s NavMesh in-game

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. In this game, WAIFUs serve as the eponymous towers of the genre, but with a twist — by spending some resource, they can be moved after they are deployed.

To denote the areas that WAIFUs can walk on, we created an interface that highlighted walkable areas on the map when players decide to move their WAIFUs. This is what we ended up with:

Enjoyed this article? Then check out this other article about how we drew stat graphs for our WAIFUs on our UI interface.

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Swords and Shields
Awesome starters artwork by Ry Spirit: https://instagram.com/ryspiritart/

Calculating EVs needed to raise a stat in Pokémon

As a result of working on upgrades for this Pokémon Effort Value Calculator, math has been a pretty big part of my life for the past few months, as I’ve been rearranging the games’ formulas for stat and damage calculation to make my own that fit my needs.

One such formula was the EVs needed one, which gives you the amount of EVs you need to invest to raise a stat by n points. Everyone knows that at Level 100, you get 1 stat point for every 4 EV points you invest; but what happens when you’re not at Level 100, or when you factor in stat modifiers like Nature, or item and ability boosts?

Don’t know what effort values are? Start with this article from Bulbapedia. Don’t play the mainline Pokémon games? Then you should start with these.

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Unity Remote Splash Screen
Unity Remote 5 Android app splash screen

Getting Unity Remote for Android to work on Windows

30 July 2020: We’ve updated the article with helpful comments from past readers. Thanks for all your contributions!

If you’re developing a game for Android on Unity, Unity Remote is an irreplaceable tool that allows you to quickly test your game on your Android device using Unity’s built-in Play-in-Editor feature. Unfortunately, it can also be pretty difficult to get Unity Remote to work, since it requires some very specific configurations on both your Android device and your computer.

Available solutions online are often incomplete, inaccurate, or outdated (Unity Remote was released more than 4 years ago, and the Android development scene is very different from how it was then), so you often have to piece solutions from multiple sources to get one that works. After grappling for hours to get Unity Remote working on multiple computers (and a lot of frustration), I’ve decided to write a set of articles to save you the same frustration. Hopefully, this will save you from 9000 Google searches and a damaged keyboard.

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GitHub Desktop
Image from https://desktop.github.com/

Using GitHub Desktop as your source control repository in Unity

If you’re working on a Unity project on the default, free Unity license, you’re only allowed to have a maximum of 3 people (and a storage limit of 1GB) on Unity Collaborate. While you can work around the headcount limitation by adding and removing members as and when they need to make a commit, it can quickly become a tremendous hassle. Hence, for those not willing to pay for a Unity license, a cheap and easy way to go around both the personnel and storage limit is to use GitHub Desktop for collaboration.

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2D vector math hero - polar movement

Vector math for polar movement in 2D games (Unity)

Polar movement, i.e. moving objects at an angle, is something that people starting out in games programming often have trouble with. Coordinate systems are easy to understand, and so is moving things left and right or up and down; but what if you want to move at angles that are not parallel to an axis, like 30° upwards, or towards a target? How do you get a vector that represents that direction of movement?

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Emission lighting in Unity

Getting your emission maps to work in Unity

Emission maps (also known as emissive maps) are textures that can be applied to materials to make certain parts of an object emit light (like the cube in the image above). In Unity, lights from emission maps don’t start affecting the scene as soon as you place them on the material. There are a lot of settings you have to get right in your scene and material settings to get the emission maps working right.

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