Shader vs. ActionScript revisited

Last week I created a shader based on the cross product. This was a simple experiment, done mostly as it was very straightforward: the shader code has only three lines of simple vector maths. But since I realised that it should be possible to recreate it using ActionScript, in particular using a ColorMatrixFilter.

Linked lists + screenshots

I moved some of my data structures over to linked lists today, in preparation for adding more functionality and gameplay. I was once fairly sceptical of their applicability in Flash but I've been persuaded around by the performance work I was doing a few months ago. In particular the overhead of accessing array (Vector or Array types) members is non-trivial, comparable to other function calls. I may do some performance tests to confirm this but I'm pretty sure this is an optimal solution for what I'm doing.