BUG repair:
1. send the room, dead tree, after the death sent back to the city, the map is full and unable to operate
2., the map is always blue, and it doesn't produce advanced monsters
3. more pets when there is a small probability, can not continue to play or lose pets
4. diamond doll Caton problem of small probability
5. old witch events, small probability card problem
Optimize:
1. optimize tombstone generation algorithm
2., optimize the room generation algorithm, the room will no longer block tombstone or Witch
3. diamond doll can now be continuous mining advanced race clods
4. diamond figures won't dig old witches or tombstones now