Failed attempt on assault AI in Lua
Assault room basic mechanisms working
[demo-lv2] Assault room's proper paper mummies
[demo-lv2] Assault room with LOTS of mummies
[demo-lv2] Assault room re-design.
[lv2] Added spawner monster room
[lv2] Renamed property event_mummy to custom-monster
[lv2] Cursed altar monster
[lv2] Cursed altar appears!