todo : 

- better code
- leveled loot table
- more balancing
- land mines ttl	
- auto pick chest when close (on concrete tiles)
- more style

0.4
- better code
- add gui some style first pass
- admin gui
- better spawn generator (on the fly, more random)
0.3
- player items reset on new round
- chest respawn delay
- chest first fill delay
0.2
- tweaked loot table
- added game rounds system
- gui rework : current round gui + overall "leaderboard" gui
- map rework, bigger, more chests
- random spawns
0.1 features : 
- basic ffa pvp
- kill count gui
- respawnable (spammable) loot chests