I started working on making a grid movement engine like advance wars but after two months i realised that its way too hard for me and i stopped. So Im uploading the cap here in case someone wants to finish it.
Heres a screenshot:
And heres the cap: http://www.hostmyfilez.com/7i3vcd3k1odz/Grid_v0.40.cap
If you are interested I can send you more tiles and resources for this kind of game.