We code in C#, but that’s just a starting point. Our C# code is compiled to DLLs and then converted into C++ where it’s compiled again to machine code. The good news is that this isn’t a black box! I’ve recently been reading through the C++ code that IL2CPP outputs and learning quite a lot. Today’s article is about some of the surprises that I encountered and how you can change your C# code to avoid some nasty pitfalls.
Posts Tagged class
We’ve seen how using the CPU’s cache can lead to a 13x speedup, but that’s only utilizing one of the CPU’s cache types. Today’s article shows you how to go further by utilizing a whole other type of CPU caching!
Last week’s article showed how to effectively use the CPU’s caches to boost performance by an order of magnitude. Today’s article goes even further to show you how to use even more of the CPU’s capabilities!
Most programmers write code for an abstract computer. The thing is- code runs on a real computer that works in a specific way. Even if your game is going to run on a wide range of devices, knowing some of the common features can speed up your code 10x or more. Today’s article shows you how!
This article shows you how to remove events from the MV-C design pattern to make it simpler to understand, safer to use, and faster to execute. It’s a step-by-step lesson in refactoring. Start by reading the MV-C article, then read on!
Iterator functions and their ability to yield return values then continue on really come in handy for a variety of situations. Unfortunately, they come with some pretty serious performance and garbage creation drawbacks. So today’s article explores alternatives in various forms of callbacks: delegates, interfaces, and classes. Can they perform better than iterator functions? Can they avoid garbage creation? Read on to find out!
When writing code for a library, there is invariably some of it you want to hide from the users of the library. You want to keep the public API clean, but Unity makes this tough. Today’s article discusses a strategy for laying out your code so that users of the library aren’t burdened by classes, functions, and properties that they don’t need to know about. Read on to see how!
While little utilized, C#’s struct type can come in really handy sometimes. Today’s article shows how to use it to get a lot more mileage out of modern CPUs’ caches to really boost your app’s performance. Read on for some quick tips!
In today’s article I’ll share a technique that can help you reason about your classes (and structs). The core idea is to move some methods out of the class into helper functions. Doing this can really simplify the class and simplify the functions so they’re much more easily understood by readers (including yourself!), more easily written, and more easily extended. Read on to learn more about this technique!
Enums are great at what they do: creating a simple integer type with specific values. Their main purpose is to choose one value out of many like enum Color { Red, Green, Blue }. But what if you have data attached to those choices? What if the data is one type for one choice and another type for another choice? What if there are two pieces of data to attach to one choice and only one for another? Today’s article shows a simple pattern you can use instead of enum in these cases to get a lot more flexibility and extensibility. Read on to see how!