damage type values
0 = generic
1 = crush
2 = bullet
4 = slash
8 = burn
16 = freeze
32 = fall
64 = blast
128 = club
256 = shock
512 = sonic
1024 = energy beam
16384 = drown
32768 = paralyse
65536 = nerve gass
131072 = poison
262144 = radiation
524288 = drown (recover)
1048576 = chemical
2097152 = slow burn
4194304 = slow freeze