More progress!

So today I sat down for a while working out all my algorithms, then I realised that since I asked my brother a few things he started writing them too, so we both got some good algorithms for drawing the tiles properly!

From there I did quite a lot, the engine now:

1. Loads maps, can save them easily too
2. Has a z index

Here's the features of the map so far:

1. As many tiles as you want on a single map, it will always draw them correctly due to special sorting I've done ;)
2. Support for multiple Z levels, so you can have a little house with a roof that you can walk under without being warped etc
3. Walls etc can be added and will automatically block because of their height!

So, pretty busy today and this is alot of progress for something like this: Here's another LAME screenshot! It shows different heights, different tiles on the map too.