7DRL 2014 day 1 - Beware of warp points leading nowhere!

So, I think I accomplished my goals for today. And it's only 8 in the morning, how about that! I've got a cave-like grid of star systems, and each system contains a star, some planets, and warp points leading to the adjacent systems. The player can move his @ about on the star system map, and moving onto a warp point teleports him to the next star system over. (I decided to make warping automatic instead of requiring a keypress just to keep things simple, and not require that the game allow more than one space object per sector.)

If you'd like to check out my code, you can grab it over at Bitbucket. I've also got a screenshot in case you just want a quick glimpse at the game: