Posts Tagged type

Unity Script Performance Testing

Tags: , , ,

Today’s article is the first to test Unity script performance speed. It establishes a way to set up and test C# scripts in Unity whether you have access to Pro or not. As a first example, I was reminded by the news this week that AddComponent(string) is being removed in Unity 5.0. These alternative versions of AddComponent and GetComponent aren’t something I normally use, but the news got me thinking of their performance compared to the generic-typed versions: GetComponent<ComponentType>(). The docs say to avoid the versions taking a string, but how bad could the performance really be? Today’s article puts the two versions to the test to find out just that!

Read the rest of this article »

3 Comments

Should You Bother Giving Variables a Type?

Tags: , , ,

Many modern strongly-typed languages have introduced a way for you to not have to type a variable’s type. In C#, you can use var instead of the actual type. In C++, you use auto. AS3 has a similar feature with it’s “untyped” type: *. In those other languages, var and auto are syntax sugar that the compiler replaces with the actual type. Will the AS3 compiler and/or Flash Player do the same for us? Today’s article finds out if it’s safe to skip the type and just use *.

Read the rest of this article »

7 Comments

What is an int?

Tags: , , , ,

If you’re thinking “I know what an int is”, you need to take this little quiz to find out for sure!

Read the rest of this article »

6 Comments

Loops With int and uint

Tags: , , , , , , , , ,

AS3 has two integer types: int and uint. In my experience, most AS3 programmers just use int everywhere and ignore uint. This is usually acceptable as the need for unsigned integers is rare compared to their signed counterparts. However, there are significant performance differences between the two. Read on for the impact of uint on your loops. The original version of this article’s performance test contained a small-but-critical error that led to a lot of incorrect analysis and results. This version of the article has been corrected.

Read the rest of this article »

8 Comments

Explicit Type Conversion

Tags: , , , , , , ,

Five months ago I said I’d talked about explicit type conversion. I hadn’t, really. What I talked about before was type casts. A cast changes the type, not the data. Today, I’m actually going to talk about type conversion and show you the costs of converting between all of your favorite types: int, uint, Number, Boolean, String, and even XML.

Read the rest of this article »

4 Comments

Typecasting: Part 3

Tags: , , , , , , , ,

Today’s article is a followup to an article (Cast Speed, itself a followup to Two Types of Casts) from September that continues to gather comments. Sharp-eyed reader fastas3 brought up a good point that warranted some further investigation into the topic. So today we’ll be taking yet-another look at typecasting in AS3 to try to unravel some of its strange mysteries.

Read the rest of this article »

10 Comments

Implicit Type Conversion

Tags: , , , , , ,

I’ve talked before about explicit type conversion and used the function-call style (Type(obj)) and the as keyword to accomplish the task. Today, I’m going to talk about implicit type conversion and use—as implicit would imply—no operators at all!

Read the rest of this article »

6 Comments

Array vs. Vector Part II

Tags: , , , , , ,

Today’s article is in response to some interesting comments on the previous article comparing Array‘s performance to that of Vector. Today I’ll test different types of Vectors and the performance of deleting elements.

Read the rest of this article »

15 Comments

Details of toString()

Tags:

When an object is converted to a String, it is first checked for a toString() method. But there are subtleties to this that you may not have considered.

Read the rest of this article »

No Comments

Null and Undefined

Tags:

Usually languages just have one way to specify “no value”. Call it null or nil or whatever you’d like, but AS3 and JavaScript have two: null and undefined. Here’s a little bit to help you understand when and why you’ll come across the two as well as some tricky differences between them.

Read the rest of this article »

1 Comment