Updated to v1.3

Fence / border now added to the left and right sides of the map. This can help to avoid confusion or accidentally going to where one might not have been wanting to go. I think it also helps to add to the overall challenge of the game, so requiring the Player to more fully navigate the map   (without the use of 'short-cuts / teleporting from one side to the other)  to the camp, exit door, and in dealing with or avoiding the wandering skeletons.

After a new map is generated, there's now a bit more open ground space around the Player-character and camp. This (I think) will give the Player a bit more evading room and less likely to get trapped if wanting to access camp but a skeleton followed close. 

I  also fixed an issue where sometimes gold-coins that might have randomly appeared after blasting an area , and if also catching the 1st skeleton (and key holder) of a map, that it may have covered / hidden the key. So now the key should always appear properly after defeating the first skeleton on a map.  

I  put a fence / border part on one side of the camp and exit door. This can help to prevent accidently enter those spots and it also eliminates doing an extra location check (so I was able to trim the code a bit more that way and hopefully to reclaim a bit of extra RAM memory for the game).