Back in the day we did stuff like perlin noise while people where still struggling with rounded corners in HTML. It's syntax is almost exactly like C# if you swap the order of access modifers and variable names. Flash used a language called ActionScript, which was open source and it's third iteration (AS3) a powerfull typed OOP language that unfortunately lost the field when mobile devices gained critical mass. There used to be this tech called Flash and it happens I used to be a paid Flash developer.
