2D game engine written in D is in progress

[Ondra via Digitalmars-d-announce]

> Also do somebody know how should I speed up the sprite part of 
> the code? In my opinion, it's pretty slow alrought it was the 
> easiest way I could come up with.

Hi,

you have wrong approach to this problem. From design OOP view it 
is perfectly ok and this is how you universities teach it in 
their SQL classes... But you probably don't aim for clean OOP 
design but for speed. You work with every single sprite as 
entity. But you should aim to process sprites in batch. Your 
sprite should be probably struct, then feed array of them into 
separate function instead of calling on every sprite.

Difference:
foreach(sprite)
  sprite->doSth();

vs:
doSth(sprite[]);

this is good read:
http://gameprogrammingpatterns.com/flyweight.html